Results 41 to 50 of about 49,233 (340)

Comprehensive simulation of snow crystal deposition and electric field characteristics of composite sheath improved porcelain cantilever insulator in a wind and snow environment

open access: yesJournal of Measurement Science and Instrumentation, 2022
The installed porcelain insulators on existing railway lines in China are prone to "snow flash" in winter. In order to prevent the occurrence of "snow flash" and improve the reliability of the insulators, a composite-porcelain insulator is designed.
SHENG Wangqun   +4 more
doaj  

Modeling of Dry Band Formation and Arcing Processes on the Polluted Composite Insulator Surface

open access: yesEnergies, 2019
This paper modeled the dry band formation and arcing processes on the composite insulator surface to investigate the mechanism of dry band arcing and optimize the insulator geometry.
Jiahong He, Kang He, Bingtuan Gao
doaj   +1 more source

Faulty sensor detection using data correlation of multivariant sensor reading in smart agriculture with IOT [PDF]

open access: yes, 2019
The Internet of Things (IoT), the idea of getting real-world objects connected with each other, will change the ways we organize, obtain and consume information radically.
Malik, Ahmed Dhahir
core   +1 more source

Study on material and mechanical characteristics of silicone rubber shed of field-aged 110 kV composite insulators

open access: yesScientific Reports, 2023
Composite insulators have excellent performance and are more and more widely used in power grid. The performance of composite insulators with different service duration will decline in varying degrees, which could pose a threat to the safe operation of ...
Lin Mu   +4 more
doaj   +1 more source

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

Mixed-valence insulators with neutral Fermi surfaces

open access: yes, 2018
Samarium hexaboride is a classic three-dimensional mixed valence system with a high-temperature metallic phase that evolves into a paramagnetic charge insulator below 40 kelvin.
Chowdhury, Debanjan   +2 more
core   +2 more sources

The influence of a single defect in composite gate insulators on the performance of nanotube transistors

open access: yes, 2014
The current through a carbon nanotube field-effect transistor (CNFET) with cylindrical gate electrode is calculated using the nonequilibrium Greens function method in a tight-binding approximation.
Wang, Neng-Ping, Yu, Wen-Juan
core   +1 more source

Algebraic charge liquids [PDF]

open access: yes, 2007
High temperature superconductivity emerges in the cuprate compounds upon changing the electron density of an insulator in which the electron spins are antiferromagnetically ordered.
A Damascelli   +30 more
core   +2 more sources

Composite Aerogel for Heat Insulation

open access: yesChemical Engineering Transactions, 2020
Silica aerogels are often brittle and MTMS is rather expensive. Therefore, it is necessary to strengthen MTMS silica aerogels and lower their cost. In this research, hydrophobic composite monolithic methyltrimethoxysilane (MTMS) based aerogels were investigated.
Cao Oanh T. H.   +5 more
openaire   +2 more sources

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

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