Results 51 to 60 of about 201,713 (268)

Multi-Machine Power System Transient Stability Enhancement Utilizing a Fractional Order-Based Nonlinear Stabilizer

open access: yesFractal and Fractional, 2023
Given the intricate nature of contemporary energy systems, addressing the control and stability analysis of these systems necessitates the consideration of highly large-scale models. Transient stability analysis stands as a crucial challenge in enhancing
Arman Fathollahi, Björn Andresen
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

Solutions and Optimal Control of HIV-1 Dynamic Evolution Models

open access: yesTaiyuan Ligong Daxue xuebao
[Purposes] On the basis of the background and application of HIV-1 dynamic evolution models, in this paper, a kind of fractional HIV-1 dynamic evolution model involving control terms is investigated.
ZHOU Bibo   +3 more
doaj   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

ADAPTIVE DECISION SUPPORT SYSTEMS FOR CYBER SECURITY

open access: yesСучасні інформаційні системи, 2019
The subject of the research is the principles and models of adaptive decision support systems in cyber security. The purpose is to develop basic principles and models underlying the operation of adaptive decision support systems in the field of ...
Oleksandr Milov
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

The pyruvate generator is a common phenomenon in mitochondria from different rat and mouse brain regions

open access: yesFEBS Letters, EarlyView.
The pyruvate generator, which causes activation of respiration by extra‐mitochondrial Ca2+, is also present and functional in rat brainstem mitochondria, as it is in other brain regions. This finding is confirmed by experiments with a fully reconstituted malate–aspartate shuttle (MAS).
Grazyna Debska‐Vielhaber   +7 more
wiley   +1 more source

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

MODELING HETEROGENEOUS ENVIRONMENT AND MOBILE OBJECTS SUPERVISION IN MONITORING PROBLEMS

open access: yesInformatika, 2016
A variant of monitoring problem formalization on the basis of the decision theory is considered. The models of heterogeneous environment and mobile heterogeneous object are offered as a structuralinformative basis for solving typical monitoring tasks ...
A. I. Kuzmich, V. V. Krasnoproshin
doaj  

Efficient Wheel-Rail Stick-Slip Numerical Modeling for Railway Traction Vehicles

open access: yesApplied Sciences
Motor railway vehicles necessitate enhanced control of wheel-rail contact mechanics to ensure optimal adhesion. During train running, driving wheelsets exhibit torsional vibrations that compromise adhesion and potentially lead to axle damage ...
Razvan Andrei Oprea   +2 more
doaj   +1 more source

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