Results 41 to 50 of about 737,182 (294)

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

A Grid Connected Photovoltaic Generation System With Compensation Of Current Harmonics And Voltage Sags

open access: yesEletrônica de Potência, 2006
This paper presents a system that provides photovoltaic generation as well as the ability to compensate current harmonics and voltage sags. The system can be controlled for current harmonics and reactive power compensation simultaneously by using a ...
Marcelo Cabral Cavalcanti   +5 more
doaj   +1 more source

Autophagy and mitophagy in pancreatic β‐cell homeostasis and their involvement in diabetes pathophysiology

open access: yesFEBS Letters, EarlyView.
This review focuses on the role of autophagy and mitophagy in maintaining pancreatic β‐cell function and homeostasis. We discuss how genetic defects affecting these pathways contribute to the development of type 1, type 2, monogenic, and gestational diabetes. We further explore their potential as therapeutic targets. Created in BioRender.
Yunkyeong Lee   +2 more
wiley   +1 more source

Three-Phase Flexible Transformer Based on Bipolar Direct AC/AC Chopper and its Control Strategy

open access: yesIEEE Access, 2020
Dynamic states (e.g., voltage sags and swells) in the power grid can cause faults and defects in sensitive loads and in consequence financial losses. This paper deals with a flexible transformer based on bipolar direct AC/AC chopper (BD-AC).
Yibo Wang   +5 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

A Dynamic Voltage Restorer based on Matrix Converter with Fuzzy Controller

open access: yesAdvances in Electrical and Electronic Engineering, 2012
In this paper, a Dynamic Voltage Restorer (DVR) without any energy storage devices is proposed to compensate network voltage during disturbances. This DVR utilizes a matrix converter in its topology which eliminates the DC-link capacitor of conventional ...
Amin Shabanpour, Ali Reza Seifi
doaj   +1 more source

Suppressing output power fluctuation and improving FRT Capability of DFIG‐based wind energy conversion system with SMES and dual‐mode protection scheme

open access: yesIET Generation, Transmission & Distribution, 2021
As the grid codes of wind turbines note, doubly fed induction generator (DFIG)‐based wind energy conversion system (WECS) should maintain uninterrupted operation during certain voltage faults.
Kai‐Jian Du   +5 more
doaj   +1 more source

Evaluating the effect of γ‐oryzanol on MASLD pathology using a medaka fish model

open access: yesFEBS Open Bio, EarlyView.
This study explores a liver disease called MASLD, which is increasing worldwide and can lead to serious damage. Researchers used medaka fish instead of rodents to test a food compound, γ‐oryzanol. Fish fed this compound had less liver fat and healthier gut bacteria.
Yukako Ito   +7 more
wiley   +1 more source

Development of HVRT and LVRT Control Strategy for PMSG-Based Wind Turbine Generators

open access: yesEnergies, 2020
Various challenges are acknowledged in practical cases with high wind power penetration. Fault ride-through (FRT) capability has become the most dominant grid integration requirements for the wind energy conversion system worldwide. The high voltage ride-
Liang Yuan   +5 more
doaj   +1 more source

Mitigation of voltage sag and voltage swell by using dynamic voltage restorer

open access: yesInternational Journal of Power Electronics and Drive Systems (IJPEDS)
Recent power quality (PQ) research shows that the most common types of power quality disturbances are voltage sags and swells in medium and low-voltage distribution grids. This paper shows how to improve two significant power quality disturbances: sags and swells voltage. To find out what effect these two PQ issues have in real life, a study case based
Mattar, El-Zahraa M.   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy