Results 61 to 70 of about 9,819,249 (244)

Systematic Analysis and Design of Single-Phase Boost PFC Converter for Induction Motor Drive [PDF]

Engineering and Technology Journal, 2014
This paper presents a systematic analysis and design of a single-phase boost power factor correction (PFC) converter supplying an inverter-motor drive system.
Jafar H. Alwash, Turki K. Hassan, Raed F. Abbas   +2 more
doaj   +1 more source

Study on Fluid Pressure in Tubing, Dynamic Stress in Reservoir, and Fracture Propagation Morphology During Variable‐Rate Hydraulic Fracturing

Energy Science &Engineering, EarlyView.
Variable‐rate hydraulic fracturing can induce unsteady flow in the tubing, thereby generating fluctuating fluid pressure near the bottom‐hole reservoir. Dynamic stress is generated in the reservoir under the action of fluctuating fluid pressure and propagates as stress waves.
Zhu Ge, Wang Chaojing, Li Weicheng
wiley   +1 more source

Identifiable regional and neural network abnormalities in early childhood anxiety

JCPP Advances, EarlyView.
Abstract Background Although the neural underpinnings of anxiety have been investigated, most research has been confined to adolescence and adulthood, with less of a focus on the early childhood period. Little is known about the role of anticipatory fear processing early childhood, which is a sensitive period for anxiety development.
Khalil I. Thompson, Yiwen Zhang, Denny Schaedig, Anna Bankston, Anoushka Parnerkar, Shrinidhi Jeyaram, Nadine Melhem, Susan B. Perlman   +7 more
wiley   +1 more source

Power Factor Corrector Based on Parallel Quasi- Resonant Pulse Converter with Fast Current Loop

Electrical, Control and Communication Engineering, 2013
The problems, devoted to power quality and particularly power factor correction, are of great importance nowadays. The key requirements, which should be satisfied according to the energy efficiency paradigm, are not limited only by high quality of the ...
Yuriy Denisov, Serhii Stepenko
doaj   +1 more source

SubDIVIDE: Efficient tensor‐valued diffusion magnetic resonance imaging via joint diffusional variance decomposition modeling and subspace reconstruction

Journal of Intelligent Medicine, EarlyView.
SubDIVIDE integrates a physics‐consistent DIVIDE subspace directly into MRI reconstruction. By embedding a low‐rank basis derived from a large DIVIDE signal dictionary into a joint ADMM optimization—together with composite sensitivity maps that absorb inter‐b‐value phase errors—the framework recovers quantitative microstructural maps from highly ...
Cheng Yang, Jingguo Yan, Zihan Zhou, Zhong Xue, Qiuyun Fan   +4 more
wiley   +1 more source

Harnessing Neuroscience in Social Advertising: From Emotional Impact to Cognitive Understanding and Intentional Behavior in Children and Adolescents

Psychology &Marketing, EarlyView.
ABSTRACT This study examines emotional responses and their associations with Cognitive Understanding and Intentional Behavior following exposure to a social advertising video featuring historical female role models. Using a mixed‐methods approach that combines near‐infrared spectroscopy with survey data, it investigates how emotional responses observed
Patricia P. Iglesias‐Sánchez, José Manuel Santos‐Jaén, Elena Cruz‐Ruiz, Carmen Jambrino‐Maldonado   +3 more
wiley   +1 more source

Power Factor Correction of Compact Fluorescent and Tubular LED Lamps by Boost Converter with Hysteretic Control

Journal of Daylighting, 2020
Compact Fluorescent Lamps (CFLs) and Light-emitting Diode (LED) lamps have received wide acceptance in lighting applications during the last few years.
Javier Revelo-Fuelagán, John E. Candelo-Becerra, Fredy E. Hoyos   +2 more
doaj   +1 more source

OpenMRF: A Modular, Vendor‐Neutral Open‐Source Framework for Magnetic Resonance Fingerprinting Using Pulseq

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Widespread adoption and methodological advancement of magnetic resonance fingerprinting (MRF) are limited by the lack of unified, reproducible implementation frameworks and fragmented open‐source tools. To address these barriers, we introduce OpenMRF—a comprehensive Pulseq‐based solution—designed to enable standardized and transferable
Tom Griesler, Jannik Stebani, Sydney Kaplan, Ivaylo Angelov, Petra Albert, Tobias Wech, Martin Blaimer, Xiang Wang, Qingping Chen, Maxim Zaitsev, Zhibo Zhu, Qi Liu, Peter Martin, Jon‐Fredrik Nielsen, Jesse I. Hamilton, Peter Nordbeck, Nicole Seiberlich, Maximilian Gram   +17 more
wiley   +1 more source

A double closed loop APFC control with feed-forward

Journal of Measurement Science and Instrumentation, 2017
In order to improve the steady state performance,dynamic response and power factor of traditional power factor correction（PFC）digital control method and reduce the harmonic distortion of input current,a double closed loop active power factor correction ...
YAN Wen-hua, WANG Xiao-peng, YU Peng-fei
doaj  

Single-stage PFC ac-dc converters [PDF]

Journal of Electrical and Electronics Engineering, 2009
For single-phase applications, two stagepower factor correction (PFC) rectifiers are typicalapproach used to achieve high power factor and fastoutput regulation. In low power area this method is tocostly.
Dorin Cismasiu
doaj