Results 31 to 40 of about 27,716 (308)

Effects of PEV Penetration on Voltage Unbalance

open access: yes, 2014
Balancing loads in low voltage networks is a challenging task due to a continuous fluctuation in the power demand. Voltage unbalance is a condition in which the voltage phasors differ in amplitude and/or do not have its normal 120° phase relationship ...
Ahmed M. A. Haidar   +3 more
core   +1 more source

On The Relationships Among Different Voltage Unbalance Definitions

open access: yes, 2021
Growing penetrations of distributed energy resources (DERs) increase the power injection variability in distribution systems, which can result in power quality issues such as voltage unbalance.
Kshitij I Girigoudar   +2 more
core   +1 more source

Classification Tree-Based Wheel Unbalance Detection

open access: yes, 2021
In this paper, the problem of unbalance detection in vehicle’s wheels is analyzed. Starting from accelerations and angular velocities acquired from a wheel balancer machine instrumented with Micro Electro-Mechanical Systems (MEMS) sensors, meaningful ...
G. Dambach   +4 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Study on Rotor-Bearing System Vibration of Downhole Turbine Generator under Drill-String Excitation

open access: yesEnergies
Downhole turbine generators (DHTG) installed within drill-string are susceptible to internal and external excitation during the drilling process, causing significant dynamic loads on bearings, and thereby reducing the bearing’s service life.
Benchun Yao   +4 more
doaj   +1 more source

Analysis of Progressively Unbalanced Induction Motor Current Signals Based on Information Entropy

open access: yesElektronika ir Elektrotechnika, 2018
The article presents the capabilities of a new fault identification method used for different fault levels. The method allows identifying unbalanced induction motor by only using stator current signals.
Ignas Andrijauskas, Rimas Adaskevicius
doaj   +1 more source

From Real to Complex FLL With Unbalance and Harmonic Distortion Compensation

open access: yesIEEE Access, 2021
This work presents a model-based frequency-locked loop (FLL) for three-phase systems subject to unbalance and harmonic distortion conditions. It is based on a pretty general model of a three-phase AC reference signal comprising a set of harmonic ...
Gerardo Escobar   +5 more
doaj   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

Balancing of Dynamic Rotors with Distributed Unbalance

open access: yes, 2016
The unbalance present in the rotor gives rise to a synchronous unbalance force in the rotor. To minimize or eliminate the effects caused due to this unbalance force, the rotor needs to be balanced.
, Sesha Sainadh S T G
core   +1 more source

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