Results 21 to 30 of about 2,160 (178)

Multi-Objective Genetic Algorithm Based Coordinated Second- and Third-Order Harmonic Voltage Injection in Modular Multilevel Converter

open access: yesIEEE Access, 2020
The submodule (SM) capacitor voltage ripple and the root mean square (RMS) of the arm current are related to the costs and losses of the modular multilevel converter (MMC). The optimization issues have received great attention.
Lei Lin, Ang Li, Chen Xu, Yifan Wang
doaj   +1 more source

Submodule Capacitor Voltage Ripple Reduction of Full-Bridge Submodule-Based MMC (FBSM-MMC) with Non-Sinusoidal Voltage Injection

open access: yesEnergies, 2023
The full-bridge submodule (FBSM)-based modular multilevel converter (FBSM-MMC) offers promising performance due to its ability to output negative FBSM voltage.
Ming Huang
doaj   +1 more source

$n$-absorbing and strongly $n$-absorbing second submodules

open access: yesBoletim da Sociedade Paranaense de Matemática, 2021
‎In this paper‎, ‎we introduce the concepts of $n$-absorbing and strongly $n$-absorbing second submodules as a dual notion of $n$-absorbing submodules of modules  over a commutative ring and obtain some related results‎. ‎In particular‎, ‎we investigate some results concerning strongly 2-absorbing second submodules‎.
Habibollah Ansari-Toroghy   +2 more
openaire   +4 more sources

For Some Results of Semisecond Submodules

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2018
  Let â„› be a commutative ring with unity and let ℬ be a unitary R-module. Let ℵ be a proper submodule of ℬ, ℵ is called semisecond submodule if for any r∈ℛ, r≠0, n∈Z+, either rnℵ=0 or rnℵ=rℵ.
Rasha I. Khalaf
doaj   +1 more source

Generalized 2-absorbing and strongly generalized 2-absorbing second submodules [PDF]

open access: yesAlgebra and Discrete Mathematics, 2020
Summary: Let \(R\) be a commutative ring with identity. A proper submodule \(N\) of an \(R\)-module \(M\) is said to be a 2-absorbing submodule of \(M\) if whenever \(abm \in N\) for some \(a, b \in R\) and \(m \in M\), then \(am \in N\) or \(bm \in N\) or \(ab \in (N :_R M)\). In [Palest. J. Math. 8, No.
???Ansari-Toroghy, H.   +2 more
openaire   +3 more sources

On generalizations of graded second submodules

open access: yesProyecciones (Antofagasta), 2020
Let G be a group with identity e, R be a commutative G-graded ring with unity 1 and M be a G-graded R-module. In this article, we introduce and study two generalizations of graded second submodules, namely, graded 2-absorbing second submodules and graded strongly 2- absorbing second submodules. Also, we introduce and study the concept of graded quasi 2-
Mashhoor Refai, Rashid Abu-Dawwas
openaire   +2 more sources

Predictive Control of Modular Multilevel Converters: Adaptive Hybrid Framework for Circulating Current and Capacitor Voltage Fluctuation Suppression

open access: yesEnergies, 2023
Modular multilevel converters (MMCs) are widely used in voltage-sourced, converter-based high-voltage DC systems due to their modular design, scalability, and fault tolerance capabilities.
Junda Li   +3 more
doaj   +1 more source

On Weakly Second Submodules

open access: yesIraqi Journal of Science, 2019
    Let  be a non-zero right module over a ring  with identity. The weakly second submodules is studied in this paper. A non-zero submodule  of   is weakly second Submodule when  ,  where ,  and  is a submodule of  implies either  or   . Some connections between these modules and other related modules are investigated and number of conclusions  and ...
Zainab Saadi, Ghaleb Ahmed
openaire   +2 more sources

On graded G2-absorbing and graded strongly G2-absorbing second submodules

open access: yesProyecciones (Antofagasta), 2023
In this paper, we introduce the concepts of graded G2-absorbing and graded strongly G2-absorbing second submodules of graded modules over graded commutative rings. We give a number of results concerning these classes of graded submodules and their homogeneous components.
Shatha Alghueiri, Khaldoun Al-Zoubi
openaire   +1 more source

Few-shot Video Action Recognition Based on Two-stage Spatio-Temporal Alignment [PDF]

open access: yesJisuanji kexue
Few-shot video action recognition aims to construct efficient learning models using limited training samples,thereby reducing the dependence of traditional action recognition on large-scale and finely annotated datasets.At present,most few-shot learning ...
WANG Jia, XIA Ying, FENG Jiangfan
doaj   +1 more source

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