Results 1 to 10 of about 20,315 (167)

Analysis and calculation of magnetic flux density distribution and core loss of nanocrystalline transformer

open access: yesEnergy Reports, 2022
Nanocrystalline transformers have better electromagnetic properties than electrical steel transformers, such as lower losses. Nowadays, numerous nanocrystalline magnetic cores have served in the research work of high-frequency transformers, but there is ...
Zhenyu Cai   +3 more
doaj   +1 more source

The stieltjes transform of distributions [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1979
In the present work, two complex inversion formulas of Byrne and Love for generalized Stieltjes transformation are shown to be valid for a class of distributions. This is accomplished by transfering the complex inversion formulas on the testing function space of a class of distributions and then showing that the limiting process in the resulting ...
U. N. Tiwari, J. N. Pandey
openaire   +3 more sources

Polynomial Distributions and Transformations

open access: yesMathematics, 2023
Polynomials are common algebraic structures, which are often used to approximate functions, such as probability distributions. This paper proposes to directly define polynomial distributions in order to describe stochastic properties of systems rather than to assume polynomials for only approximating known or empirically estimated distributions ...
Yue Yu, Pavel Loskot
openaire   +3 more sources

FINITE-ELEMENT CALCULATION OF ELECTROMAGNETIC FORCES IN THE DEFERENT SHAPES OF DISTRIBUTION TRANSFORMERS WINDING UNDER SHORT CIRCUIT CONDITION

open access: yesJournal of Engineering and Sustainable Development, 2022
This paper is concerned with calculating the electromagnetic forces in the windings of distribution transformers with different shapes of coils. The electromagnetic forces as well as the magnetic flux density and their distribution were analyzed and ...
Weeam J. Hussein, Kassim R. Hameed
doaj   +3 more sources

Impact on Voltage Regulation in Medium Voltage Distribution Networks Due to the Insertion of Photovoltaic Generators

open access: yesEnergies, 2023
The objective of this paper was to analyze the impacts caused by the operation of voltage regulators in electrical distribution networks and to evidence the number of operations in the face of short-duration voltage variation caused by the high ...
Gustavo Fernandes de Negreiros   +3 more
doaj   +1 more source

Distributional Watson Transforms [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 1974
For all Watson transforms W in L2(R+) a triple of Hilbert space LG ⊂ L2(R+) ⊂ L'G is constructed such that W may be extended to L'G. These results allow the construction of a triple L ⊂ L2(R+) ⊂ L', where L is a Gelfand-Fréchet space. This leads to a theory of distributional Watson transforms.
Dijksma, A., de Snoo, H.S.V.
openaire   +3 more sources

A distributional Hardy transformation [PDF]

open access: yesMathematical Proceedings of the Cambridge Philosophical Society, 1974
In this paper the classical Hardy transformation (5) has been extended to distributions. The celebrated Hankel transformation, Y-transformation and H-transformation are particular cases of the Hardy transformation. The Hankel transformation has been extended to distributions by Zemanian(12).
R. S. Pathak, J. N. Pandey
openaire   +3 more sources

Deep Learning-Based Short-Term Load Forecasting Approach in Smart Grid With Clustering and Consumption Pattern Recognition

open access: yesIEEE Access, 2021
Different aggregation levels of the electric grid’s big data can be helpful to develop highly accurate deep learning models for Short-term Load Forecasting (STLF) in electrical networks.
Dabeeruddin Syed   +6 more
doaj   +1 more source

The Ridgelet transform of distributions [PDF]

open access: yesIntegral Transforms and Special Functions, 2013
We define and study the ridgelet transform of (Lizorkin) distributions. We establish connections with the Radon and wavelet transforms.
Kostadinova, Sanja   +3 more
openaire   +3 more sources

Load Losses and Short-Circuit Resistances of Distribution Transformers According to IEEE Standard C57.110

open access: yesInventions, 2023
Load losses determine transformers’ efficiency and life, which are limited by overheating and deterioration of their elements. Since these losses can be characterized by short-circuit resistances, in this article, we have developed expressions for the ...
Vicente León-Martínez   +3 more
doaj   +1 more source

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