Results 21 to 30 of about 14,654 (261)

Power factor correction in power delivery systems with mutipulse nonlinear loads

Известия высших учебных заведений: Проблемы энергетики, 2021
THE PURPOSE. Мutipulse rectifiers are widely used as a nonlinear loads in industrial distribution systems. The advantage of mutipulse rectifiers is low harmonic emission and high power factor.
D. E. Egorov, V. P. Dovgun, N. P. Boyarskaya, A. V. Jan, A. S. Slyusarev   +4 more
doaj   +1 more source

Comparative Analysis of Definitions for the Harmonic Emission Levels

RE&PQJ
To keep a high level of power quality, Distribution System Operators (DSOs) must keep harmonic voltage levels under limits specified in standards. These harmonic voltages are due to non-linear equipment connected inside installations, which inject harmonic currents into public networks.
Denoel, Julien, Petit, Marc, Le, Trung Dung   +2 more
openaire   +1 more source

Self-induced transparency in a perfectly absorbing chiral second-harmonic generator

PhotoniX, 2022
Transparency and perfect absorption are two contradictory terms; a perfect absorber never permits waves to transmit through. However, this statement only remains true in the linear regime, where the nonlinearity has been omitted and the physical system ...
Jiankun Hou, Jintian Lin, Jiefu Zhu, Guolin Zhao, Yao Chen, Fangxing Zhang, Yuanlin Zheng, Xianfeng Chen, Ya Cheng, Li Ge, Wenjie Wan   +10 more
doaj   +1 more source

Comparison of Allowable Harmonic Emission Value Distribution Methods at the Point of Common Coupling of High Voltage System

Zhongguo dianli
With a large number of nonlinear loads connected to the power grid, the harmonic problems caused by them are becoming more and more serious. Various countries or organizations have formulated harmonic standards to constrain the harmonic emission values ...
Shun TAO, Huilin CHEN, Yonghai XU, Shengjun ZHOU, Xiangning XIAO   +4 more
doaj   +1 more source

Calculation of harmonic losses and ampacity in low-voltage power cables when used for feeding large LED lighting loads

Advanced Electromagnetics, 2014
A numerical investigation on the harmonic disturbances in low-voltage cables feeding large LED loads is reported. A frequency domain analysis on several commercially-available LEDs was performed to investigate the signature of the harmonic current ...
N. J. Milardovich, L. Prevosto, M. A. Lara   +2 more
doaj   +1 more source

System harmonic impedance calculation based on partial least squares equivalent weight regression

Zhejiang dianli
To mitigate the impact of singular values in voltage and current signals on regression results and achieve a more accurate delineation of harmonic responsibilities for both the system and users， this paper proposes a method for calculating system ...
QIAN Yongliang, TANG Mingshu, CHEN Bo, GUO Cheng, FENG Yue   +4 more
doaj   +1 more source

Peer-to-Peer-Based Power Flow Control in Microgrids With Limited Voltage Harmonic Distortion

IEEE Access, 2023
This paper proposes a novel primary level controller and coupling LCL filter design methodology for microgrid prosumer units The so-called decentralized peer-to-peer-based power flow control algorithm introduces a power exchange communication link ...
Stevan Grabic, Marko Vekic, Milan Rapaic, Ivana Isakov, Vlado Porobic   +4 more
doaj   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Predictive Ability of Plasma p‐tau217 for β‐Amyloid Status: A Prospective Multicenter Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Plasma tau phosphorylated at threonine 217 (p‐tau217) measured with fully automated platforms has shown high accuracy for Alzheimer's disease (AD) diagnosis, but real‐world multicenter data remain limited. We aimed to validate the diagnostic performance of p‐tau217 for identifying AD pathology in a real‐world multicenter cohort ...
Miquel Massons, Nuria Guillen, Jordi Sarto, Neus Falgàs, Sergi Borrego‐Écija, Diana Esteller‐Gauxax, Magda Castellví, Adrià Tort‐Merino, Agnès Pérez‐Millan, Anna Antonell, Josep M. Augè Fradera, Gerard Piñol, Iolanda Riba, Anna Carnes‐Vendrell, Marta Cullell, Maria Teresa Osuna, Lorena Bajo, Teresa Romero, Eva Bonjoch, Joan Bello, Susana Fernández, Marta Balagué, Isabel Gómez‐Ruiz, Anuncia Boltes, Claustre Pont, Raquel Cuevas, Sara Carrillo, Laura Iglesias, Teresa Maria Casadevall Codina, Lorena Grau Guinea, Fernando Jose Espada, Raquel Sánchez‐Valle, Mircea Balasa, Albert Lladó   +33 more
wiley   +1 more source