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Journal articles on the topic 'Electric field modeling techniques'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Venkatesh, Vavilala, K. Srinibas Rao, and Rama Rao J.V.G. "Calculation of electric field and magnetic field in a 245 kV GIS." E3S Web of Conferences 616 (2025): 03034. https://doi.org/10.1051/e3sconf/202561603034.

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In India, the implementation of Gas Insulated Substation (GIS) has been accelerated for two decades. In the case of GIS, the electric and magnetic field estimation is very important because of the shorter distances of bus bars and line sections. Several others have given the estimation of electric and magnetic fields by solving nonlinear differential equations using numerical techniques. In this paper, the advanced simulation tools ELECNET and MAGNET have been used to estimate these fields. A typical 245k V GIS is considered for Modeling and simulation. The four important locations, XLPE cable

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Tang, Zi Rong, M. Rizwan Malik, Tie Lin Shi, J. Gong, L. Nie, and Guang Lan Liao. "Modelling and Fabrication of 3-D Carbon-MEMS for Dielectrophoretic Manipulation of Micro/Nanoparticles in Fluids." Materials Science Forum 628-629 (August 2009): 435–40. http://dx.doi.org/10.4028/www.scientific.net/msf.628-629.435.

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Carbon-MEMS (C-MEMS) have emerged as a new category of devices for micro/nano technology with many potential applications. Dielectrophoretic manipulation of micro/nanoparticles with C-MEMS is studied in this paper. Through electric field distribution modeling in carbon electrode array, we analyze the strongest simulation effect results of electric field in three dimensional (3-D) surface plots depicting the magnitude of electric field in various cross sections at different heights above the channel floor for 2, 10, 30 and 50 μm high carbon electrodes. It is represented here that maximum intens

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Gomez-Tames, Jose, and Mariano Fernández-Corazza. "Perspectives on Optimized Transcranial Electrical Stimulation Based on Spatial Electric Field Modeling in Humans." Journal of Clinical Medicine 13, no. 11 (2024): 3084. http://dx.doi.org/10.3390/jcm13113084.

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Background: Transcranial electrical stimulation (tES) generates an electric field (or current density) in the brain through surface electrodes attached to the scalp. Clinical significance has been demonstrated, although with moderate and heterogeneous results partly due to a lack of control of the delivered electric currents. In the last decade, computational electric field analysis has allowed the estimation and optimization of the electric field using accurate anatomical head models. This review examines recent tES computational studies, providing a comprehensive background on the technical

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Jörgens, Christoph, and Markus Clemens. "A Review about the Modeling and Simulation of Electro-Quasistatic Fields in HVDC Cable Systems." Energies 13, no. 19 (2020): 5189. http://dx.doi.org/10.3390/en13195189.

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In comparison to high-voltage alternating current (HVAC) cable systems, high-voltage direct current (HVDC) systems have several advantages, e.g., the transmitted power or long-distance transmission. The insulating materials feature a non-linear dependency on the electric field and the temperature. Applying a constant voltage, space charges accumulate in the insulation and yield a slowly time-varying electric field. As a complement to measurements, numerical simulations are used to obtain the electric field distribution inside the insulation. The simulation results can be used to design HVDC ca

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Kurbanismailov, Z. M., A. T. Tarlanov, and E. M. Akimov. "The technique of point visualization of the electric field in space and time." Russian Technological Journal 9, no. 3 (2021): 58–65. http://dx.doi.org/10.32362/2500-316x-2021-9-3-58-65.

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Testing of electronic devices is an integral part of the technological process of any manufacturer of such equipment. In this case, an electronic device is understood as an energy-intensive unit such as a mobile phone, data center or spacecraft. One of the key stages of testing is to identify the effect of electric fields on various electronic components of the device. This stage often requires making a mock-up of some part of an unfinished device in order to fix interference with special equipment. This requires time, financial and human resource costs. In order to reduce these costs in the m

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Brown, Thomas S., Tonatiuh Sánchez-Vizuet, and Francisco-Javier Sayas. "Evolution of a semidiscrete system modeling the scattering of acoustic waves by a piezoelectric solid." ESAIM: Mathematical Modelling and Numerical Analysis 52, no. 2 (2018): 423–55. http://dx.doi.org/10.1051/m2an/2017045.

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We consider a model problem of the scattering of linear acoustic waves in free homogeneous space by an elastic solid. The stress tensor in the solid combines the effect of a linear dependence of strains with the influence of an existing electric field. The system is closed using Gauss’s law for the associated electric displacement. Well-posedness of the system is studied by its reformulation as a first order in space and time differential system with help of an elliptic lifting operator. We then proceed to studying a semidiscrete formulation, corresponding to an abstract Finite Element discret

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Mercadal, Borja, Ricardo Salvador, Maria Chiara Biagi, Fabrice Bartolomei, Fabrice Wendling, and Giulio Ruffini. "Modeling implanted metals in electrical stimulation applications." Journal of Neural Engineering 19, no. 2 (2022): 026003. http://dx.doi.org/10.1088/1741-2552/ac55ae.

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Abstract Objective. Metal implants impact the dosimetry assessment in electrical stimulation techniques. Therefore, they need to be included in numerical models. While currents in the body are ionic, metals only allow electron transport. In fact, charge transfer between tissues and metals requires electric fields to drive electrochemical reactions at the interface. Thus, metal implants may act as insulators or as conductors depending on the scenario. The aim of this paper is to provide a theoretical argument that guides the choice of the correct representation of metal implants in electrical m

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Nguyen, Binh Huy, Guilherme Brondani Torri, Maja Zunic, and Véronique Rochus. "Simplified Phenomenological Model for Ferroelectric Micro-Actuator." Micromachines 14, no. 7 (2023): 1355. http://dx.doi.org/10.3390/mi14071355.

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As smart structures are becoming increasingly ubiquitous in our daily life, the need for efficient modeling electromechanical coupling devices is also rapidly advancing. Smart structures are often made of piezoelectric materials such as lead zirconate titanate (PZT), which exhibits strong nonlinear behavior known as hysteresis effect under a large applied electric field. There have been numerous modeling techniques that are able to capture such an effect; some techniques are suitable for obtaining physical insights into the micro-structure of the material, while other techniques are better-sui

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Akinsanmi, Olaitan, B. A. Adegboye, G. A. Olarinoye, and M. B. Soroyewun. "Neuro-Fuzzy Based Modeling of Electrostatic Fields for Harmattan Season in Zaria." International Journal of Engineering Research in Africa 4 (May 2011): 75–85. http://dx.doi.org/10.4028/www.scientific.net/jera.4.75.

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This paper presents a Neuro-Fuzzy based modeling of electrostatic fields for harmattan season in Zaria, Nigeria based on online based data capturing mechanism, which involved the use of a data acquisition system interfaced with a digital electrostatic field strength meter (model 257D) and a computer system. The acquired electric field data were captured by the computer using the Microsoft Office Excel Program for twenty-four months (February 2007 – February 2009). The focus of the analysis is determining the effect of environmental factors such as temperature, pressure and relative humidity on

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Hussein, Hossam M., Ahmed M. Ibrahim, Rawan A. Taha, et al. "State-of-the-Art Electric Vehicle Modeling: Architectures, Control, and Regulations." Electronics 13, no. 17 (2024): 3578. http://dx.doi.org/10.3390/electronics13173578.

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The global reliance on electric vehicles (EVs) has been rapidly increasing due to the excessive use of fossil fuels and the resultant CO2 emissions. Moreover, EVs facilitate using alternative energy sources, such as energy storage systems (ESSs) and renewable energy sources (RESs), promoting mobility while reducing dependence on fossil fuels. However, this trend is accompanied by multiple challenges related to EVs’ traction systems, storage capacity, chemistry, charging infrastructure, and techniques. Additionally, the requisite energy management technologies and the standards and regulations

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El Amrani, Mohammed, Julien Buckley, Daniel Alquier, Philippe Godignon, and Matthew Charles. "Analysis of Edge Termination Techniques for Gallium Nitride Pseudo-Vertical p-n Diodes: Modeling Based on Technology Computer-Aided Design and Review of Current Developments." Electronics 14, no. 6 (2025): 1188. https://doi.org/10.3390/electronics14061188.

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Edge termination techniques play a crucial role in enhancing the breakdown voltage (BV) and managing electric field distribution in GaN-based power devices. This review explores six key termination methods—field plate (FP), mesa, bevel, trench, ion implantation, and guard ring (GR)—with a focus on their performance, fabrication complexity, and insights derived from TCAD simulations. FP and trench terminations excel in high-voltage applications due to their superior electric field control but are accompanied by significant fabrication challenges. Mesa and bevel terminations, while simpler and c

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Lampou, Anna N., Anargyros T. Baklezos, Konstantinos K. Spyridakis, Dimitrios A. Rigas-Papakonstantinou, Ioannis O. Vardiambasis, and Christos D. Nikolopoulos. "Measurement-Based Neural Network Technique for Modeling the Low-Frequency Electric Field Radiated Behavior of Satellite Units." Applied Sciences 14, no. 23 (2024): 11283. https://doi.org/10.3390/app142311283.

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In this work, a machine learning technique employing a measurement-driven artificial neural network (ANN) architecture is proposed as a solution to the precise determination of the position and the moment of equivalent electric dipoles for unit characterization. These dipoles are used to match the generated electric field from various sources inside the spacecraft, during space exploration missions. Various methodologies for unit characterization have been proposed in the literature, the most common being the heuristic approaches, least squares variants, method of auxiliary sources, etc. Contr

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Bellebna, Yassine, Nadia Ramdani, Yassine Khalfi, and Amar Tilmatine. "A new design of square paralelipedic treatment chamber for food processing using pulsed electric field." Algerian Journal of Engineering and Technology 4 (March 8, 2021): 45–53. https://doi.org/10.5281/zenodo.4606697.

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Today, the influence of pulsed electric field is one of the key components in the PEF treatment process. The manuscript focused on the design and development of new multiple square paralelipedic PEF treatment chamber (TC<sub>2</sub>) which houses several electrodes, and testing the efficacy of this chamber on beet juice extraction compared with a single square paralelipedic treatment chamber (TC<sub>1</sub>) which houses only two electrodes. The aim of this paper to mention the effect of the Electric Field distribution based on Response Surface Modeling (RSM) for identifying the set point of t

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Nicolls, M. J., M. C. Kelley, M. N. Vlasov, et al. "Observations and modeling of post-midnight uplifts near the magnetic equator." Annales Geophysicae 24, no. 5 (2006): 1317–31. http://dx.doi.org/10.5194/angeo-24-1317-2006.

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Abstract. We report here on post-midnight uplifts near the magnetic equator. We present observational evidence from digital ionosondes in Brazil, a digisonde in Peru, and other measurements at the Jicamarca Radio Observatory that show that these uplifts occur fairly regularly in the post-midnight period, raising the ionosphere by tens of kilometers in the most mild events and by over a hundred kilometers in the most severe events. We show that in general the uplifts are not the result of a zonal electric field reversal, and demonstrate instead that the uplifts occur as the ionospheric response

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Dongwen Zheng. "Optimization algorithm of 500kVGIS circuit breaker electric field simulation based on GPU acceleration." Journal of Electrical Systems 20, no. 6s (2024): 817–21. http://dx.doi.org/10.52783/jes.2747.

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It proposes an optimization approach for electric field simulation in 500kV gas-insulated switchgear (GIS) circuit breakers that use GPU acceleration. Accurate modelling of electric field distribution within GIS circuit breakers is critical for assuring the dependability and safety of high voltage power systems. However, the computational complexity of simulating these systems presents substantial obstacles to established approaches. The goal of this work is to improve the speed, efficiency, and scalability of electric field simulations by leveraging GPU parallel processing capabilities. They

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Gavin, H. P., R. D. Hanson, and F. E. Filisko. "Electrorheological Dampers, Part II: Testing and Modeling." Journal of Applied Mechanics 63, no. 3 (1996): 676–82. http://dx.doi.org/10.1115/1.2823349.

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Electrorheological (ER) materials develop yield stresses on the order of 5–10 kPa in the presence of strong electric fields. Viscoelastic and yielding material properties can be modulated within milli-seconds. An analysis of flowing ER materials in the limiting case of fully developed steady flow results in simple approximations for use in design. Small-scale experiments show that these design equations can be applied to designing devices in which the flow is unsteady. More exact models of ER device behavior can be determined using curve-fitting techniques in multiple dimensions. A previously

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Amanatiadis, Stamatios, Theodoros Zygiridis, and Nikolaos Kantartzis. "Accurate Time-Domain Modeling of Arbitrarily Shaped Graphene Layers Utilizing Unstructured Triangular Grids." Axioms 11, no. 2 (2022): 44. http://dx.doi.org/10.3390/axioms11020044.

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The accurate modeling of curved graphene layers for time-domain electromagnetic simulations is discussed in the present work. Initially, the advanced properties of graphene are presented, focusing on the propagation of strongly confined surface plasmon polariton waves at the far-infrared regime. Then, the implementation of an unstructured triangular grid was examined, based on the Delaunay triangulation method. The electric-field components were placed at the edges of the triangles, while two different techniques were proposed for the sampling of the magnetic ones. Specifically, the first one

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Rincón-Maya, Catherine, Daniel Acosta-González, Fernando Guevara-Carazas, Freddy Hernández-Barajas, Carmen Patino-Rodríguez, and Olga Usuga-Manco. "Predictive Modeling of Electric Bicycle Battery Performance: Integrating Real-Time Sensor Data and Machine Learning Techniques." Sensors 25, no. 5 (2025): 1392. https://doi.org/10.3390/s25051392.

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In the field of sustainable mobility, this study highlights the importance of using machine learning for predictive modeling based on real traffic data collected from instrumented bicycles. The advent of advanced technologies like sustainable mobility apps, sensors, and advanced data analysis methods led to the ability to collect data from various sources, which enabled researchers to estimate battery state of charge (SOC) accurately. Most current research uses them in the lab experiments for data collection. In this work, we use real-time sensors data to construct data-driven models for lithi

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Savic, Marija, and Marija Radmilovic-Radjenovic. "Gas discharges modeling by Monte Carlo technique." Chemical Industry 64, no. 3 (2010): 171–75. http://dx.doi.org/10.2298/hemind091221022s.

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The basic assumption of the Townsend theory - that ions produce secondary electrons - is valid only in a very narrow range of the reduced electric field E/N. In accordance with the revised Townsend theory that was suggested by Phelps and Petrovic, secondary electrons are produced in collisions of ions, fast neutrals, metastable atoms or photons with the cathode, or in gas phase ionizations by fast neutrals. In this paper we tried to build up a Monte Carlo code that can be used to calculate secondary electron yields for different types of particles. The obtained results are in good agreement wi

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Ji, Haifeng, Qian Zhang, and Bin Zhang. "A Cartesian Grid Method for Modeling Charge Distribution on Interfaces via Augmented Technique." Mathematical Problems in Engineering 2018 (2018): 1–7. http://dx.doi.org/10.1155/2018/7521273.

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In the electrostatic field computations, second-order elliptic interface problems with nonhomogeneous interface jump conditions need to be solved. In realistic applications, often the total electric quantity on the interface is given. However, the charge distribution on the interface corresponding to the nonhomogeneous interface jump condition is unknown. This paper proposes a Cartesian grid method for solving the interface problem with the given total electric quantity on the interface. The proposed method employs both the immersed finite element with the nonhomogeneous interface jump conditi

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Mitsuhata, Yuji, та Toshihiro Uchida. "3D magnetotelluric modeling using the T‐Ω finite‐element method". GEOPHYSICS 69, № 1 (2004): 108–19. http://dx.doi.org/10.1190/1.1649380.

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We present a finite‐element algorithm for computing MT responses for 3D conductivity structures. The governing differential equations in the finite‐element method are derived from the T–Ω Helmholtz decomposition of the magnetic field H in Maxwell's equations, in which T is the electric vector potential and Ω is the magnetic scalar potential. The Coulomb gauge condition on T necessary to obtain a unique solution for T is incorporated into the magnetic flux density conservation equation. This decomposition has two important benefits. First, the only unknown variable in the air is the scalar valu

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Shchurov, Nikolay I., and Roman V. Shabalin. "Modeling the power part of an electric vehicle based on a driving cycle." Proceedings of the Russian higher school Academy of sciences, no. 3 (November 18, 2024): 57–68. https://doi.org/10.17212/1727-2769-2024-3-57-68.

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Nowadays, improving the power train of an electric vehicle, particularly an electric vehicle, is one of the major research areas in the field of transportation vehicles. Due to unstable load levels, frequent braking and acceleration, the efficiency of the power train needs to be improved using the latest components and techniques. The aim of the paper is to develop an efficient power train for an electric vehicle based on the world driving cycle. In this study, the existing driving cycles were analyzed and the most optimal one was selected based on its perfor mance under different operating co

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Trang, Nguyen Thi Thao, Peter Lott, and Quynh Lan Nguyen. "Magnetic Field in the Universe." Journal of Physics: Conference Series 3040, no. 1 (2025): 012009. https://doi.org/10.1088/1742-6596/3040/1/012009.

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Abstract Magnetic fields permeate the universe and influence physical processes, from compact objects to large cosmic structures. Unlike electric fields, magnetic fields are closely tied to space-time dynamics, governing charged particle motion and producing radiation such as synchrotron and curvature emission. On intergalactic scales, magnetic fields are reshaped during galaxy mergers. Gravitational forces drive turbulence, shock waves, and gas inflows that amplify and reorganize magnetic fields. Radio synchrotron emission and polarization mapping observations reveal strong, coherent fields i

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Naumova, Olga V., and Elza G. Zaytseva. "Analysis of Electric Field Distribution for SOI-FET Sensors with Dielectrophoretic Control." Sensors 22, no. 7 (2022): 2460. http://dx.doi.org/10.3390/s22072460.

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Silicon-on-insulator (SOI) nanowire or nanoribbon field-effect transistor (FET) biosensors are versatile platforms of electronic detectors for the real-time, label-free, and highly sensitive detection of a wide range of bioparticles. At a low analyte concentration in samples, the target particle diffusion transport to sensor elements is one of the main limitations in their detection. The dielectrophoretic (DEP) manipulation of bioparticles is one of the most successful techniques to overcome this limitation. In this study, TCAD modeling was used to analyze the distribution of the gradient of t

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Trichtchenko, L., and D. H. Boteler. "Modelling of geomagnetic induction in pipelines." Annales Geophysicae 20, no. 7 (2002): 1063–72. http://dx.doi.org/10.5194/angeo-20-1063-2002.

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Abstract. Geomagnetic field variations induce telluric currents in pipelines, which modify the electrochemical conditions at the pipe/soil interface, possibly contributing to corrosion of the pipeline steel. Modelling of geomagnetic induction in pipelines can be accomplished by combining several techniques. Starting with geomagnetic field data, the geoelectric fields in the absence of the pipeline were calculated using the surface impedance derived from a layered-Earth conductivity model. The influence of the pipeline on the electric fields was then examined using an infinitely long cylinder (

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Nadimi, M., and A. Sadr. "Computer Modeling of MWIR Homojunction Photodetector Based on Indium Antimonide." Advanced Materials Research 383-390 (November 2011): 6806–10. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.6806.

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High operating temperatures infrared photodetectors are needed for improving the performance of existing military and civilian infrared systems. To obtain high device performance at higher temperatures, the thermally generated noise required to be reduced. Minority-carrier extraction and exclusion techniques are the approaches for decreasing the thermal noise of infrared systems. In the present work, an InSb extraction diode was studied and simulated for operation in the MWIR region. The simulation was performed using ATLAS device simulator from SILVACO®. The energy band diagram, doping profil

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Lee, K. H., and H. F. Morrison. "A solution for TM‐mode plane waves incident on a two‐dimensional inhomogeneity." GEOPHYSICS 50, no. 7 (1985): 1163–65. http://dx.doi.org/10.1190/1.1441989.

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Quantitative interpretation of magnetotelluric (MT) surveys depends at present on the availability of an efficient forward modeling algorithm. To date, two major numerical techniques have been used to obtain the scattered fields from buried inhomogeneities in plane‐wave fields: methods solving the governing differential equation which generally uses a finite‐element or finite‐difference approach, and methods which solve an integral‐equation formulation of the problem. For two‐dimensional (2-D) inhomogeneities a solution for incident fields with the electric field parallel to the strike of the

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Chatterjee, Aveek, and Kevin Matocha. "Atomistic Scale Modeling and Analysis of Sodium Enhanced Oxidation of Silicon Carbide." Materials Science Forum 615-617 (March 2009): 493–96. http://dx.doi.org/10.4028/www.scientific.net/msf.615-617.493.

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We explain the phenomenon of sodium enhanced oxidation (SEO) using computational techniques, and analyze a set of probable hypotheses, which can elucidate the observation of high inversion channel mobility achieved with SEO. The ability of the Na to screen the interface traps, reduce carbon cluster type of defect formation, and enhance the oxidation rate can be explained using these calculations. We observe an increased availability of electrons near the interface in the presence of Na. The sodium atom also helps in breaking the intramolecular oxygen bond. The electronic and atomic structure o

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Vilchevskaya, Elena N., and Wolfgang H. Müller. "Modeling of orientational polarization within the framework of extended micropolar theory." Continuum Mechanics and Thermodynamics 33, no. 4 (2021): 1263–79. http://dx.doi.org/10.1007/s00161-021-00972-x.

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AbstractIn this paper the process of polarization of transversally polarizable matter is investigated based on concepts from micropolar theory. The process is modeled as a structural change of a dielectric material. On the microscale it is assumed that it consists of rigid dipoles subjected to an external electric field, which leads to a certain degree of ordering. The ordering is limited, because it is counteracted by thermal motion, which favors stochastic orientation of the dipoles. An extended balance equation for the microinertia tensor is used to model these effects. This balance contain

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Nikbay Oylum, Kader, and Turgay Tugay Bilgin. "A Data Fusion Method Combining Image, Sensor, and Survey Data for Efficiency and Usability Analysis of Electric Power Tools in Industrial Environments." European Journal of Research and Development 5, no. 1 (2025): 68–83. https://doi.org/10.56038/ejrnd.v5i1.636.

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The increasing integration of advanced technologies and automation in industrial production has heightened the importance of operational efficiency and safety. Among the critical components influencing workforce performance and product quality is the effective use of electric hand tools. However, the limited availability of comprehensive datasets and the absence of robust labeling methodologies present significant challenges for accurate data analysis and predictive modeling. This study addresses these limitations by incorporating field-collected data and multiple data acquisition techniques t

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Salazar Bove, Joselynne C., Sebastián Toro, and Pablo A. Kler. "Assessing Electroosmotic Flow in Porous Media with Multi-scale Techniques for Paper-based Microfluidics." Resúmenes de Mecánica Computacional 1, no. 9 (2024): 95. https://doi.org/10.70567/rmc.v1i9.175.

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In this work, multiscale techniques to model the electroosmotic flow in porous materials with paper-like microstructures are studied and applied. The multiscale technique is based on the definition of a representative volume element (RVE) of the material to be modeled. In this case, the microstructure is built from connected channels where the fluid moves inside the void of the porous material (microscale). At the microscale, the velocity and pressure are solved under incompressible flow conditions in the Stokes regimen with a volumetric force term associated with Coulombic forces. Such forces

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Freno, Brian A., Neil R. Matula, Justin I. Owen, and William A. Johnson. "Code-verification techniques for the method-of-moments implementation of the electric-field integral equation." Journal of Computational Physics 451 (February 2022): 110891. http://dx.doi.org/10.1016/j.jcp.2021.110891.

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Kanyou Nana, R., S. Korte, S. Dickmann, H. Garbe, and F. Sabath. "Estimation of the threat of IEMI to complex electronic systems." Advances in Radio Science 7 (May 19, 2009): 249–53. http://dx.doi.org/10.5194/ars-7-249-2009.

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Abstract. The threat of ultra wideband (UWB) sources is interesting for military issues. This paper summarizes information concerning the voltages generated from some commercially available UWB generator systems and their produced electromagnetic fields. The paper focuses on the coupling of UWB fields into electronic equipment and discusses possible modeling and measurement techniques to estimate such a threat for modern ships. An evaluation procedure for the determination of the induced voltage at the input of an electronic component is presented. This method is based on the computation of th

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Kundu, T., D. Placko, E. K. Rahani, T. Yanagita, and Cac Minh Dao. "Ultrasonic field modeling: a comparison of analytical, semi-analytical, and numerical techniques." IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 57, no. 12 (2010): 2795–807. http://dx.doi.org/10.1109/tuffc.2010.1753.

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Sowmiya, M., and G. Renuka Devi. "Modeling and Control of a Dual Stator Multiphase Induction Motor for Electric Vehicle Technology." DESIGN, CONSTRUCTION, MAINTENANCE 4 (December 17, 2024): 191–200. https://doi.org/10.37394/232022.2024.4.20.

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This paper presents the dynamic modeling and speed control of a Dual Stator Multiphase Induction Motor (DSMIM) in MATLAB/Simulink environment. The torque production and load sharing capability of the model is analyzed under free acceleration conditions when subjected to a frictional load profile. Its speed control operation is realized using the conventional V/f and vector based Indirect Field-Oriented Control (IFOC) methods. The torque and speed tracking ability of the machine with the chosen control techniques were simulated. The better dynamic performance of IFOC controlled DSMIM drive mode

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Gallinato, Olivier, Baudouin Denis de Senneville, Olivier Seror, and Clair Poignard. "Numerical modelling challenges for clinical electroporation ablation technique of liver tumors." Mathematical Modelling of Natural Phenomena 15 (2020): 11. http://dx.doi.org/10.1051/mmnp/2019037.

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Electroporation ablation is a promising non surgical and minimally invasive technique of tumor ablation, for which no monitoring is currently available. In this paper, we present the recent advances and challenges on the numerical modeling of clinical electroporation ablation of liver tumors. In particular, we show that a nonlinear static electrical model of tissue combined with clinical imaging can give crucial information of the electric field distribution in the clinical configuration. We conclude the paper by presenting some important questions that have to be addressed for an effective im

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Boayue, Nya Mehnwolo, Gábor Csifcsák, Oula Puonti, Axel Thielscher, and Matthias Mittner. "Head models of healthy and depressed adults for simulating the electric fields of non-invasive electric brain stimulation." F1000Research 7 (November 15, 2018): 704. http://dx.doi.org/10.12688/f1000research.15125.2.

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During the past decade, it became clear that the electric field elicited by non-invasive brain stimulation (NIBS) techniques such as transcranial direct current stimulation (tDCS) and transcranial magnetic stimulation (TMS) are substantially influenced by variations in individual head and brain anatomy. In addition to structural variations in the healthy, several psychiatric disorders are characterized by anatomical alterations that are likely to further constrain the intracerebral effects of NIBS. Here, we present high-resolution realistic head models derived from structural magnetic resonanc

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Fiocchi, Serena, Michela Longhi, Paolo Ravazzani, Yiftach Roth, Abraham Zangen, and Marta Parazzini. "Modelling of the Electric Field Distribution in Deep Transcranial Magnetic Stimulation in the Adolescence, in the Adulthood, and in the Old Age." Computational and Mathematical Methods in Medicine 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/9039613.

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In the last few years, deep transcranial magnetic stimulation (dTMS) has been used for the treatment of depressive disorders, which affect a broad category of people, from adolescents to aging people. To facilitate its clinical application, particular shapes of coils, including the so-called Hesed coils, were designed. Given their increasing demand and the lack of studies which accurately characterize their use, this paper aims to provide a picture of the distribution of the induced electric field in four realistic human models of different ages and gender. In detail, the electric field distri

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BLINOV, L. M., V. V. LAZAREV, S. P. PALTO, G. CIPPARRONE, A. MAZZULLA, and P. PAGLIUSI. "ELECTRIC FIELD TUNING A SPECTRUM OF NEMATIC LIQUID CRYSTAL LASING WITH THE USE OF A PERIODIC SHADOW MASK." Journal of Nonlinear Optical Physics & Materials 16, no. 01 (2007): 75–90. http://dx.doi.org/10.1142/s0218863507003561.

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Lasing has been observed in the dye-doped isotropic and nematic phases of liquid crystals in a plane layer placed between one substrate with a uniform transparent electrode and another substrate with a system of parallel chromium (nontransparent) electrodes. The latter has a periodicity of 15 μm and plays a double role: (i) in both the phases it operates as a shadow mask providing a spatial modulation of the pump beam and consequently, a gain of the material and (ii) in the nematic phase it additionally creates a Bragg resonator structure with spatial modulation of the refraction index when an

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Tandberg, Erik, Peter J. Schultz, Geof C. Aers, and T. E. Jackman. "Defect profiling of semiconductor epilayers using positron beams." Canadian Journal of Physics 67, no. 4 (1989): 275–82. http://dx.doi.org/10.1139/p89-048.

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Over the last 10 years, positrons have been used as a tool to study and profile dilute concentrations of defects in solids. The two basic techniques involve the measurement of the positron lifetime and the Doppler broadening of the annihilation γ-rays. Only recently have positrons been used to profile defects in multilayered structures. We review the theory of positron–defect interactions and positron transport in silicon, and introduce a model used to profile defects and electric-field effects using the steady-state diffusion equation. An example is discussed that involves the modelling of de

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Meriouma, Takieddine, Sid Ahmed Bessedik, and Rabah Djekidel. "Modelling of Electric and Magnetic Field Induction under Overhead Power Line Using Improved Simulation Techniques." European Journal of Electrical Engineering 23, no. 4 (2021): 289–300. http://dx.doi.org/10.18280/ejee.230402.

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Remley, K. A., A. Weisshaar, V. K. Tripathi, and S. M. Goodnick. "Modeling of Radiation Fields in a Sub-Picosecond Photo-Conducting System." VLSI Design 8, no. 1-4 (1998): 407–12. http://dx.doi.org/10.1155/1998/10832.

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FDTD and Monte Carlo methods are combined to simulate the terahertz radiation from a coplanar photoconducting structure. The simulation tool under consideration allows calculation of potentials, particle distributions, current densities, and the near field electromagnetic fields anywhere in the computational domain. To model the far field radiation, it is not efficient nor, in many cases, physically possible at present to use the FDTD technique directly because of the excessive computational burden. Techniques are discussed for modeling both the near field and the far field radiation. Computat

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FJELDLY, TOR A., and MICHAEL S. SHUR. "SIMULATION AND MODELING OF COMPOUND SEMICONDUCTOR DEVICES." International Journal of High Speed Electronics and Systems 06, no. 01 (1995): 237–84. http://dx.doi.org/10.1142/s0129156495000079.

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We review the simulation and modeling techniques used for popular compound semiconductor devices such as the Heterostructure Field Effect Transistor (HFET), the Metal Semiconductor Field Effect Transistor (MESFET), and the Heterostructure Bipolar Transistor (HBT). Starting with the basic transport theory and the numerical simulation techniques based on this theory, we proceed to give examples of Monte Carlo simulations and of 2D balance equation simulations for investigating fundamental device properties and for exploring new design concepts. Next, we present analytical HFET and MESFET models

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A. Saravanan. "Beyond the Current State of the Art in Electric Vehicle Technology in Robotics and Automation." Journal of Electrical Systems 20, no. 4s (2024): 2282–91. http://dx.doi.org/10.52783/jes.2398.

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The improvement of electric vehicles and their parts is currently the subject of several recent innovations, with an emphasis on advancements in batteries, energy management systems, autonomous features, and charging infrastructure. The current logistics and transportation (L&T) systems comprise heterogeneous fleets made up of both conventional internal combustion engine cars and other vehicle types that use environmentally friendly technology, such as electric and plug-in hybrid vehicles. This helps significantly to the development of the upcoming generations of electric vehicles and prom

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Suslov, Konstantin, Andrey Kryukov, Ekaterina Voronina, and Ilia Fesak. "Modeling Power Flows and Electromagnetic Fields Induced by Compact Overhead Lines Feeding Traction Substations of Mainline Railroads." Applied Sciences 13, no. 7 (2023): 4249. http://dx.doi.org/10.3390/app13074249.

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The ongoing re-equipment of electric power systems is based on the use of smart grid technologies. Among the key tasks that are solved on this basis are increasing the capacity of power transmission lines, reducing losses, and improving power quality. To address these issues, one can use compact power transmission lines. Such lines are notable for their complex split-phase designs and close together placement of current-conducting parts, so as to keep the distance to a permissible minimum, which is achieved by the use of insulating spacers. This article reports the results of computer-aided si

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Andras, Andrei, Florin Dumitru Popescu, Sorin Mihai Radu, et al. "Numerical Simulation and Modeling of Mechano–Electro–Thermal Behavior of Electrical Contact Using COMSOL Multiphysics." Applied Sciences 14, no. 10 (2024): 4026. http://dx.doi.org/10.3390/app14104026.

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Electrical contacts are important circuit components with diverse industrial applications, and their failure can lead to multiple unwanted effects. Hence, the behavior of electrical contacts is a widely studied topic in the scientific literature based on various approaches, tools, and techniques. The present study proposes a new approach to numerical modeling and simulation based on the Holm contact theory, aiming to study the dependence between the electric potential and the temperature within an electrical contact. Structured in five sections, the research was conducted using COMSOL Multiphy

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Kovacevic-Badstuebner, Ivana, Daniele Romano, Giulio Antonini, Jonas Ekman, and Ulrike Grossner. "Broadband Circuit-Oriented Electromagnetic Modeling for Power Electronics: 3-D PEEC Solver vs. RLCG-Solver." Energies 14, no. 10 (2021): 2835. http://dx.doi.org/10.3390/en14102835.

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Broadband electromagnetic (EM) modeling increases in importance for virtual prototyping of advanced power electronics systems (PES), enabling a more accurate prediction of fast switching converter operation and its impact on energy conversion efficiency and EM interference. With the aim to predict and reduce an adverse impact of parasitics on the dynamic performance of fast switching power semiconductor devices, the circuit-oriented EM modeling based on the extraction of equivalent lumped R-L-C-G circuits is frequently selected over the Finite Element Method (FEM)-based EM modeling, mainly due

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Al-Lehaibi, Eman A. N., and Hamdy M. Youssef. "The Influence of the Caputo Fractional Derivative on Time-Fractional Maxwell’s Equations of an Electromagnetic Infinite Body with a Cylindrical Cavity Under Four Different Thermoelastic Theorems." Mathematics 12, no. 21 (2024): 3358. http://dx.doi.org/10.3390/math12213358.

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This paper introduces a new mathematical modeling of a thermoelastic and electromagnetic infinite body with a cylindrical cavity in the context of four different thermoelastic theorems; Green–Naghdi type-I, type-III, Lord–Shulman, and Moore–Gibson–Thompson. Due to the convergence of the four theories under study and the simplicity of putting them in a unified equation that includes these theories, the theories were studied together. The bunding plane of the cavity surface is subjected to ramp-type heat and is connected to a rigid foundation to stop the displacement. The novelty of this work is

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Amara-Ouali, Yvenn, Yannig Goude, Pascal Massart, Jean-Michel Poggi, and Hui Yan. "A Review of Electric Vehicle Load Open Data and Models." Energies 14, no. 8 (2021): 2233. http://dx.doi.org/10.3390/en14082233.

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The field of electric vehicle charging load modelling has been growing rapidly in the last decade. In light of the Paris Agreement, it is crucial to keep encouraging better modelling techniques for successful electric vehicle adoption. Additionally, numerous papers highlight the lack of charging station data available in order to build models that are consistent with reality. In this context, the purpose of this article is threefold. First, to provide the reader with an overview of the open datasets available and ready to be used in order to foster reproducible research in the field. Second, t

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Bessette, D. "Modeling Techniques for Correcting Measured Data on the ITER Toroidal Field Insert Coil." IEEE Transactions on Appiled Superconductivity 14, no. 2 (2004): 1418–22. http://dx.doi.org/10.1109/tasc.2004.830631.

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