Results 41 to 50 of about 1,085,664 (298)

Composite Insulator Defect Identification Method Based on Acoustic–Electric Feature Fusion and MMSAE Network

open access: yesEnergies, 2023
Aiming to solve the partial discharge problem caused by defects in composite insulators, most existing live detection methods are limited by the subjectivity of human judgment, the difficulty of effective quantification, and the use of a single detection
Bizhen Zhang   +5 more
doaj   +1 more source

Photonic crystal and photonic wire nano-photonics based on silicon on insulator [PDF]

open access: yes, 2006
Silicon-on-insulator (SOI) is a strong candidate for application in future planar waveguide integration technology, whether or not luminescence is extracted from the silicon.
De La Rue, Richard   +28 more
core   +1 more source

Fiber Bragg grating monitors for thermal and stress of the composite insulators in transmission lines

open access: yesGlobal Energy Interconnection, 2018
Running composite insulators are prone to failure due to their harsh surrounding work environment, which directly affects the safe operation of transmission lines.
Heming Deng   +5 more
doaj   +1 more source

Risk assessment of desert pollution on composite high voltage insulators

open access: yesJournal of Advanced Research, 2014
Transmission lines located in the desert are subjected to desert climate, one of whose features is sandstorms. With long accumulation of sand and with the advent of moisture from rain, ambient humidity and dew, a conductive layer forms and the subsequent
Mohammed El-Shahat, Hussein Anis
doaj   +1 more source

Recent insights into the molecular mechanism of ubiquinol oxidation by cytochrome bc1

open access: yesFEBS Open Bio, EarlyView.
The review reflects on the mechanism of the catalytic reaction in cytochrome bc1: the electron bifurcation that involves the separation of two electrons derived from the quinol oxidation to opposite sides of the enzyme across the membrane. This review summarizes the long‐standing effort to understand the mechanism of quinol oxidation catalyzed by ...
Anna Wójcik‐Augustyn   +2 more
wiley   +1 more source

Harmonic Generation in Metal-Insulator and Metal-Insulator-Metal Nanostructures

open access: yes, 2018
We report that the second and third harmonic signal reductions with insulator film surface coverage over a gold substrate gives a measure of the electron density in the spill out volume of the insulator, which is dubbed metal insulator gap states.
Imad Agha (14406609)   +8 more
core   +1 more source

Effects of spin symmetry breaking in topological insulators [PDF]

open access: yes, 2015
Topological insulators are one of the most thoroughly investigated systems in condensed matter physics over the last years. In these systems, a prominent role is inevitably taken by time-reversal symmetry, which leads to Kramers theorem and symmetry ...
Orth, Christoph
core   +1 more source

Impact of increased temperature of lower end-fitting of a composite long rod insulator on its mechanical strength under variable loads [PDF]

open access: yes, 2023
This paper describes results of tensile mechanical strength testing of two types of composite suspension line insulators from two manufacturers. In order to take into account the operation of composite insulators in overhead transmission lines with high ...
Wańkowicz, Jacek   +5 more
core   +3 more sources

Development of a Simple Experimental Setup for the Study of the Formation of Dry Bands on Composite Insulators

open access: yesEnergies, 2022
This paper introduces a new geometry for the study of dry band formation. Firstly, a thermoelectric simulation of a 69 kV uniformly polluted composite insulator was performed.
Marc-Alain Andoh   +2 more
doaj   +1 more source

Hydrogel platforms for 3D cardiac tissue engineering and fibrotic disease modelling

open access: yesFEBS Open Bio, EarlyView.
Hydrogel‐based cardiac tissue models are advancing our understanding of heart health and disease. By incorporating electrical conductivity, aligned structures, and tunable mechanical properties, these platforms better replicate the complex environment of native heart tissue.
Harrison Porritt   +2 more
wiley   +1 more source

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