Results 21 to 30 of about 440,069 (286)

Medium-Voltage Distribution Network Parameter Optimization Using a Thyristor Voltage Regulator

open access: yesEnergies, 2022
The article is devoted to the study of steady-state conditions of a distribution network containing a thyristor voltage regulator. The thyristor voltage regulator (TVR) is a new controlled semiconductor device developed at Nizhny Novgorod State Technical
Elena Sosnina   +3 more
doaj   +1 more source

A mathematical model of the three-phase AC to DC voltage converter with fourzone voltage control and active-inductive load

open access: yesAdaptivni Sistemi Avtomatičnogo Upravlinnâ, 2021
The article focuses on electromagnetic processes in electric circuits with semiconductor switches. A mathematical model of a semiconductor converter with four-zone output voltage control has been created so as to analyse electromagnetic processes in ...
В. Михайленко   +2 more
doaj   +1 more source

ОСОБЕННОСТИ ОПРЕДЕЛЕНИЯ ПАРАМЕТРОВ СИЛОВЫХ ТРАНСФОРМАТОРОВ МЕТОДАМИ СХЕМНО-ПОЛЕВОГО МОДЕЛИРОВАНИЯ

open access: yesElektrotehnìka ta Elektroenergetika, 2017
Цель работы. Разработка нового высокоэффективного подхода для определения параметров силового трансформатора в режимах холостого хода и короткого замыкания на основе схемно-полевого моделирования электромагнитных процессов, позволяющего учитывать ...
T. E. Divchuk   +5 more
doaj   +1 more source

Functional Control Synthesis of Single-Phase Low Power Motor Drives [PDF]

open access: yesEAI Endorsed Transactions on Energy Web, 2019
In the paper an electric drive system of series-wound universal motor powered by semiconductor converter is considered. The system characteristics and calculation procedure using spectral method of Solodovnikov and aligning procedure are shown.
Yu. Dementyev   +5 more
doaj   +1 more source

Wave processes in alternating current traction network depending on parameters of power supply system [PDF]

open access: yesОмский научный вестник, 2019
The article considers a mathematical model of the AC traction power supply system taking into account stationary and nonstationary wave processes. The model allows you to analyze the effect of system parameters on electromagnetic processes at its ...
T. V. Kovaleva   +2 more
doaj   +1 more source

SIRENE: A Spatial Data Infrastructure to Enhance Communities’ Resilience to Disaster-Related Emergency

open access: yesInternational Journal of Disaster Risk Science, 2018
Planning in advance to prepare for and respond to a natural hazard-induced disaster-related emergency is a key action that allows decision makers to mitigate unexpected impacts and potential damage.
Simone Sterlacchini   +3 more
doaj   +1 more source

Effective Neutrino Photon Interaction in a Magnetized Medium [PDF]

open access: yes, 2001
Neutrino-photon processes, forbidden in vacuum, can take place in presence of a thermal medium or an external electro-magnetic field, mediated by the corresponding charged leptons (real or virtual).
Bhattacharya, Kaushik   +2 more
core   +2 more sources

Mergers of Supermassive Black Holes in Astrophysical Environments [PDF]

open access: yes, 2011
Modeling the late inspiral and merger of supermassive black holes is central to understanding accretion processes and the conditions under which electromagnetic emission accompanies gravitational waves.
Armitage   +27 more
core   +3 more sources

Shadowing and Antishadowing in Neutrino Deep Inelastic Scattering [PDF]

open access: yes, 2005
The coherence of multiscattering quark nuclear processes leads to shadowing and antishadowing of the electromagnetic nuclear structure functions in agreement with measurements.
Amaudruz P., IVAN SCHMIDT
core   +2 more sources

Beta decay and other processes in strong electromagnetic fields

open access: yes, 2011
We consider effects of the fields of strong electromagnetic waves on various characteristics of quantum processes. After a qualitative discussion of the effects of external fields on the energy spectra and angular distributions of the final-state ...
A. I. Nikishov   +11 more
core   +1 more source

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