Results 81 to 90 of about 9,819,249 (244)

Fast-scale instability of singlestage power-factor-correction power supplies

open access: yes, 2006
—This paper describes the fast-scale bifurcation phenomena of a single-stage power-factor-correction (PFC) power supply which is a cost effective design for low-power applications.
Octavian Dranga   +3 more
core   +1 more source

Single-phase rectifiers with power factor correction

open access: yes, 2021
U ovom radu istraženi su najčešće korišteni jednofazni ispravljački spojevi s mogućnošću korekcije faktora snage (pfc). Na primjeru jednofaznog pfc uzlaznog pretvarača i na primjeru dvofaznog (isprepletenog) pfc uzlaznog pretvarača, teoretski je dobiven ...
Komorski, Matija
core  

Brain reward function in young people with cannabis use disorder: A functional magnetic resonance imaging study

open access: yesAddiction, EarlyView.
Abstract Background and Aims Cannabis use disorder (CUD) affects ~50 million people globally. Neuroscientific theories suggest that a blunted neural response to non‐drug rewards is a hallmark of substance use disorders; however, this remains untested in CUD. The current study tested whether brain reward system responses to the anticipation and feedback
Martine Skumlien   +15 more
wiley   +1 more source

Control techniques for power factor correction converters

open access: yes, 1994
. The aspects regarding control strategies for Power Factor Correction (PFC) converters are investigated. The major control techniques to absorb sinusoidal input currents in boost PFC's are reviewed and analyzed.
SPIAZZI, GIORGIO   +5 more
core  

Power factor correction (PFC) rectifier using hysteresis current control / Mohd Hazim Mohamed [PDF]

open access: yes, 2010
This study presents the Power Factor Correction (PFC) Rectifier Using Hysteresis Current Control which allows dynamic power factor correction and eliminates the harmonics distortion.
Mohamed, Mohd Hazim
core  

Power Factor Correction Circuits

open access: yes, 2007
With the rapid development in power semiconductor devices, power electronic systems have matured and expanded to new and wide application range from residential, commercial, aerospace to military and others.
Wei, Huai   +3 more
core   +1 more source

Impact of retinal break location on surgical outcomes in primary uncomplicated rhegmatogenous retinal detachment: Superior versus inferior breaks

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To compare the anatomical and functional outcomes of pars plana vitrectomy (PPV) for primary uncomplicated rhegmatogenous retinal detachment (RRD) with superior versus inferior retinal breaks. Methods This retrospective study included 675 eyes of 675 patients, of which 476 had exclusively superior breaks and 199 had at least one ...
Ioanna Dimakopoulou   +7 more
wiley   +1 more source

Bioengineered microbiotic levodopa therapy improves cognition and reduces pathology in a rat model of Alzheimer's disease

open access: yesBritish Journal of Pharmacology, EarlyView.
Background and Purpose Degeneration of the pontine noradrenergic and midbrain dopaminergic systems contributes to cognitive‐behavioural disturbances during the prodromal stages of Alzheimer's disease (AD). We developed a genetically engineered, programmable probiotic Escherichia coli Nissle 1917 strain (EcNrhaL‐DOPA) capable of producing L‐3,4 ...
Mona Abdelhamid   +9 more
wiley   +1 more source

Study on the performance of the boost power factor correction (PFC) circuit with variable inductor current sense resistor values [PDF]

open access: yes, 2003
A Power Factor Correction (PFC) circuit using Boost converter for low power applications are developed and analyzed in this work. Simulation is done on the Boost PFC circuit using average current mode control to validate the designed parameters.
Muhamad, N. D.   +2 more
core  

The dual incretin agonist tirzepatide blunts nicotine‐induced behaviours and neurochemistry in male mice

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Nicotine dependence remains one of the leading causes of morbidity and mortality worldwide, with high relapse rates and post‐cessation weight gain representing persistent barriers to sustained abstinence. The incretin hormones glucose‐dependent insulinotropic polypeptide (GIP) and glucagon‐like peptide‐1 (GLP‐1) have ...
Christian E. Edvardsson   +5 more
wiley   +1 more source

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