Results 71 to 80 of about 868,690 (284)

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

open access: yesFEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai   +4 more
wiley   +1 more source

Co-phase Traction Supply System Based on Vv or Scott Traction Transformer and Its Control

open access: yesKongzhi Yu Xinxi Jishu, 2018
Loss of operation speed and traction force, caused by power quality and neutral section, is the main problem of the electric railway’s traction power supply system.
ZHANG Zhichun, WU Liran
doaj  

Implementation of Current Harmonic Suppression for Imbalance in Six-Phase Permanent Magnet Synchronous Motor Drives

open access: yesEnergies
Current harmonics in six-phase permanent magnet synchronous motors (PMSMs) arise from inherent asymmetries caused by manufacturing tolerances and nonlinear characteristics in the inverter output. Additionally, magnetic saturation and slight imbalances in
Yu-Ting Lin   +2 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Performance of generator negative-sequence protection during single-phase fault [PDF]

open access: yes, 2012
Negative-sequence current is a component that resulted from unbalance conditions that occur in the system. Theoretically, problems caused by the negativesequence current are rare and can be ignored, but in reality the presence of negative sequence ...
Ali Mohd. Jobran, Junaidah
core  

Development and Application of Power Quality Comprehensive Control Equipment with Active Power Transfer

open access: yesKongzhi Yu Xinxi Jishu, 2015
Power quality problems of negative sequence current, voltage fluctuation and low power factor in traction power supply system are caused by the high-speed electric railway’s unique power mode and complex operating conditions of electric locomotives ...
GONG Fen   +3 more
doaj  

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Reliable Detection of Broken Bar Fault through Negative Sequence of Stray Flux in Induction Motors

open access: yes, 2023
As well-known, the broken bar fault affects the harmonic content of the stator current and airgap & stray flux. This paper proposes to detect broken bar fault through negative sequence stray flux spectrum in induction motors (IMs).
GÖKTAŞ, TANER   +3 more
core   +1 more source

Effects of DC-Current for Short-Time Negative Sequence Current of Synchronous Machine

open access: yesIEEJ Transactions on Industry Applications, 2001
When a line-to-lire short-circuit occurs, the positive-sequence-, the negative-sequence-and the DC-current flow in the armature winding of synchronous machine. The negative-sequence current is limited in JEC-114, as this current causes the induced current and the overheat on the surface of the rotor.
openaire   +2 more sources

Home - About - Disclaimer - Privacy