Results 11 to 20 of about 324,588 (293)

GSK3α and GSK3β Phosphorylate Arc and Regulate its Degradation [PDF]

open access: yesFrontiers in Molecular Neuroscience, 2017
The selective and neuronal activity-dependent degradation of synaptic proteins appears to be crucial for long-term synaptic plasticity. One such protein is activity-regulated cytoskeleton-associated protein (Arc), which regulates the synaptic content of ...
Agata Gozdz   +9 more
doaj   +5 more sources

Subduction Duration and Slab Dip [PDF]

open access: yes, 2020
The dip angles of slabs are among the clearest characteristics of subduction zones, but the factors that control them remain obscure. Here, slab dip angles and subduction parameters, including subduction duration, the nature of the overriding plate, slab
Funiciello F.   +8 more
core   +2 more sources

New contact material for reduction of arc duration for dc application [PDF]

open access: yesThe European Physical Journal Applied Physics, 2010
The phenomenon of arcing is the major cause of electrical contact degradation in electrical switches. Degradation involves contact erosion and/or welding. The use of special contact material and that of specific material processing may permit contact erosion to be reduced, in particular by shortening the arc duration. A short review of these approaches
Doublet, L.   +7 more
openaire   +3 more sources

Restrike characteristics of vacuum circuit breaker in its opening process under DC voltage

open access: yesIET Science, Measurement & Technology, 2023
The restrike of vacuum circuit breaker during the breaking process causes overvoltage and intensifies the insulation deterioration of high‐voltage equipment. To solve this problem, the vacuum breaker aging test method and the restrike characteristics are
Jixing Sun   +8 more
doaj   +1 more source

Simulation Study on Surface Temperature Distribution of Collector Strip Material Under Pantograph-Catenary Arc of Urban Rail

open access: yesIEEE Access, 2023
With the increasing speed of urban rail trains, the vibration between the pantograph collector strip and the contact wire intensifies, and the pantograph-catenary arc occurs frequently, which severely wear the surface materials of the pantograph-catenary.
Xiaoying Yu, Mengjie Song, Ze Wang
doaj   +1 more source

Properties of Vacuum Arcs Generated by Switching RMF Contacts at Different Ignition Positions

open access: yesEnergies, 2020
The influence of initiation behavior of the drawn arc on the arc motion, on arc characteristics during the active phase, as well as on the post-arc parameters, was studied.
Sergey Gortschakow   +6 more
doaj   +1 more source

Identifying DC Series and Parallel Arcs Based on Deep Learning Algorithms

open access: yesIEEE Access, 2022
Arc phenomena are usually related to the undesired disengagement of two electrical connections. The emission power discharge from the failure arc may damage wiring and can present a fire hazard.
Hoang-Long Dang   +2 more
doaj   +1 more source

A comparative study of arc behaviour in an auto-expansion circuit breaker with different arc durations [PDF]

open access: yesJournal of Physics D: Applied Physics, 2014
A computational study of the thermal interruption performance of a 145 kV, 60 Hz auto-expansion circuit breaker has been carried out. The pressure peak in the expansion volume has a delay of 2.8–3.4 ms with reference to the current peak when the arc duration varies.
Pei, Y, Zhong, J, Zhang, J, Yan, JD
openaire   +1 more source

Characterisation of the cold metal transfer (CMT) process and its application for low dilution cladding [PDF]

open access: yes, 2011
The process characteristics of the synergic cold metal transfer (CMT) process have been examined for welding aluminium alloy. Utilising a simple backlighting system and through the arc monitoring the droplet transfer modes were identified.
Lunt, M.   +2 more
core   +1 more source

Switching Arc Energy Limitation Approach for LV Circuit Breakers

open access: yesEnergies, 2021
This paper presents an experimentally verified approach to deriving switching arc energy limitations for low-voltage (LV) circuit breakers (CBs). Air-insulated contactors equipped with additional vacuum-insulated (VI) arcing contacts were tested for AC ...
Dariusz Smugala, Michal Bonk
doaj   +1 more source

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