Results 51 to 60 of about 7,052,544 (291)

Transient vibration analysis of a completely free plate using modes obtained by Gorman's superposition method [PDF]

open access: yes, 2010
This paper shows that the transient response of a plate undergoing flexural vibration can be calculated accurately and efficiently using the natural frequencies and modes obtained from the superposition method.
Ilanko, Sinniah, Yusuke, Mochida
core   +1 more source

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

Low-field onset of Wannier-Stark localization in a polycrystalline hybrid organic inorganic perovskite

open access: yesNature Communications, 2021
Berghoff et al. discover that polycrystalline MAPbI3 undergoes transient Wannier Stark localization at moderate field strengths, exhibiting substantial optical modulation with a fast response time.
Daniel Berghoff   +5 more
doaj   +1 more source

Fast Transient Response Techniques for PWM Buck Converter

open access: yesJournal of IKEEE, 2016
Abstract PWMbuckconvertersusuallyuseatype-IIIerroramplifier.Sincethisamplifierhasabigcapacitorwithslowslewrate,theycangenerateanunintendedlargeovershoot/undershootattheoutputwhenalargeloadcurrentchangeoccurs.Theycanalsorespondslowlybyvaryingthereferencevoltage.Inordertoincreasebatterylifetime ...
Jinmin Seok, Jung-Duk Suh, Bai-Sun Kong
openaire   +2 more sources

Epigenetic reprogramming of lineage switching in cancer

open access: yesFEBS Letters, EarlyView.
Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı   +4 more
wiley   +1 more source

An efficient harmonic detection approach for shunt active filter based on wavelet transform

open access: yesAin Shams Engineering Journal, 2018
This paper described with the harmonics detection and compensation in power system. The two accepted and impressive methods in noise and harmonic detection field are implemented in this present work.
Indu Maurya, S.K. Gupta, Priyanka Maurya
doaj   +1 more source

A Novel Boost-Buck Converter Architecture for Improving Transient Response and Output-Voltage Ripple

open access: yesJournal of ICT Research and Applications, 2020
Buck-boost converters are widely used in the development of DC-DC converters. Several techniques and algorithms have been introduced to improve the transient response of buck-boost converters.
Freddy Kurniawan   +4 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

Transient energy storage systems for fast frequency response: Power‐train considerations

open access: yesIET Renewable Power Generation
Renewable energy sources generate power intermittently, which poses challenges in meeting power demand. The use of transient energy storage systems (TESSs) has proven to be an effective solution to this issue.
Yiheng Hu, Nigel Schofield, Nan Zhao
doaj   +1 more source

Digitally controlled point of load converter with very fast transient response [PDF]

open access: yes2007 European Conference on Power Electronics and Applications, 2007
This paper presents a new digital self-oscillating modulator (DiSOM) that allows the duty cycle to be changed instantly. The DiSOM modulator is shown to have variable switching that is a function of the duty cycle. Compared to a more traditional digital PWM modulator based on a counter and comparator the DiSOM modulator allows the sampling frequency of
Jakobsen, Lars Tønnes   +1 more
openaire   +1 more source

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