Results 21 to 30 of about 702,701 (291)

Evaluation of orthogonal strain components in friction extrusion

open access: yesJournal of Materials Research and Technology, 2021
Friction extrusion is a thermomechanical process that combines conventional extrusion with the action of a rotating die. The plastic deformation of the material being sheared and extruded is the primary source of process heat and it produces strain ...
X. Li   +4 more
doaj   +1 more source

Orthogonal Components Forming of the Microprocessor-Based Protection Input Signals

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2020
The use of orthogonal components (OS) is the main direction of determining information parameters in microprocessor relay protection and automation of electric power systems.
F. A. Romaniuk   +3 more
doaj   +1 more source

A METHOD OF REDUCING THE ERROR IN DETERMINING THE ANGULAR DISPLACEMENTS WHEN USING INDUCTIVE SENSORS

open access: yesElectrical engineering & Electromechanics, 2020
Goal. Representation of a special mathematical software for determining the angular displacements of the rotor of the induction angle sensor – resolver (rotating transformer) for applications in which the speed of the sensor's rotor is close to zero.
K. I. Snitkov, Y. V. Shabatura
doaj   +1 more source

THE UNBALANCE POWER IDENTIFICATION IN THE THREE-PHASE FOUR-WIRE POWER SUPPLY SYSTEM FOR THE NEEDS OF ITS DISTRIBUTED COMPENSATION

open access: yesТехнічна електродинаміка, 2022
The idea of distributed active filtration is to compensate for the currents of higher harmonics and undesirable components of the power of the main network with inverters of renewable energy converters of the connected microgrid, which have reserves of ...
М.Ю. Артеменко   +4 more
doaj   +1 more source

Reducing the Impact of the Frequency Change on the Formation of Orthogonal Components of the Relay Protection Input Signals

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2020
Digital filters made with the use of discrete Fourier Transform are applied in most microprocessor protections produced both in the home country and abroad.
E. A. Romaniuk   +3 more
doaj   +1 more source

Formation of Orthogonal Components of Input Currents in Microprocessor Protections of Electrical Equipment

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2021
The methods used in the microprocessor protection of electrical equipment for forming orthogonal components of input currents ensure their reliable isolation after changing the mode followed by one or more periods of the fundamental frequency.
F. A. Romaniuk   +3 more
doaj   +1 more source

Technique of Performance Improvement of the Microprocessor-Based Protection Measuring Element

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2019
The technique is proposed to improve the performance of the measuring element of microprocessor-based protection and its implementation is considered at the software level.
F. A. Romaniuk   +3 more
doaj   +1 more source

A New Algorithm for Computing Disjoint Orthogonal Components in the Parallel Factor Analysis Model with Simulations and Applications to Real-World Data

open access: yesMathematics, 2021
In this paper, we extend the use of disjoint orthogonal components to three-way table analysis with the parallel factor analysis model. Traditional methods, such as scaling, orthogonality constraints, non-negativity constraints, and sparse techniques, do
Carlos Martin-Barreiro   +5 more
doaj   +1 more source

Extension-orthogonal components of preprojective varieties [PDF]

open access: yesTransactions of the American Mathematical Society, 2004
Let Q Q be a Dynkin quiver, and let
Geiß, Christof, Schröer, Jan
openaire   +2 more sources

Effect of Twisting Phases on the Polarization Dynamics of a Vector Optical Field

open access: yesPhotonics, 2022
The effect of twisting phases on the polarization dynamics of a vector vortex beam with a spatially variant state of polarization (SoP) is investigated theoretically and experimentally.
Quanbin Liu   +6 more
doaj   +1 more source

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