Results 21 to 30 of about 2,678,766 (294)

Effect of Seawater and Fly Ash Contaminants on Insulator Surfaces Made of Polymer Based on Finite Element Method

open access: yesEnergies, 2021
Polymer is an insulating substance that has become increasingly popular in recent years due to its benefits. Light density, superior dielectric and thermal properties, and water-resistant or hydrophobic properties are only a few of the benefits.
I Made Yulistya Negara   +5 more
doaj   +1 more source

The Testing of Insulators [PDF]

open access: yesTransactions of the American Institute of Electrical Engineers, 1903
A statement of the requirements for satisfactory insulators and recommendations as to apparatus and methods of carrying on insulator tests.
openaire   +2 more sources

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

Research on Vibro-Acoustic Detection Method of Porcelain Pillar Insulators [PDF]

open access: yesE3S Web of Conferences, 2023
High-voltage pillar-type porcelain insulators are important components of power plants and substations, and are widely used in power grids. In recent years, various kinds of accidents caused by breakage of pillar insulators have occurred frequently ...
Gao Lei   +9 more
doaj   +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

Porcelain insulation – defining the underlying mechanism of failure

open access: yesHigh Voltage, 2019
Porcelain insulators have a long history and wide application range in power systems, but just like any other insulator, they can fail. A number of pole fires occurred on lines utilising porcelain suspension insulators.
Joni Kluss   +6 more
doaj   +1 more source

Surface Roughness Detection of Roof Insulator Based on Hyperspectral Technology

open access: yesIEEE Access, 2020
The strong airflow generated during the operation of the high-speed train will carry sand and dust, causing high-speed sand and dust to hit the surface of the external equipment of the vehicle body, which will increase the surface roughness of the roof ...
Chaoqun Shi   +5 more
doaj   +1 more source

Group IV platforms for the mid-infrared [PDF]

open access: yes, 2013
We have investigated several material platforms for the mid-infrared including silicon on insulator (SOI), polycrystalline silicon, and suspended silicon structures.
Krauss, T.F.   +34 more
core   +1 more source

A high‐performance insulators location scheme based on YOLOv4 deep learning network with GDIoU loss function

open access: yesIET Image Processing, 2022
This paper proposes a Gaussian Distance Intersection over Union (GDIoU) loss function‐based YOLOv4 deep learning network to solve the problem of slow speed and low accuracy insulator location in power facilities health inspection.
Bin Ma   +4 more
doaj   +1 more source

A New Current Transducer for On-Line Monitoring of Leakage Current on HV Insulator Strings

open access: yesIEEE Access, 2022
Leakage current measurement and its harmonics have been widely used for the pollution level estimation of HV insulator strings. However, the solutions available to applications into transmission lines and substations are few and it reduces the creepage ...
Rodrigo J. Villalobos   +5 more
doaj   +1 more source

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