Results 21 to 30 of about 29,585 (278)
Study on Hydrophobicity Detection of Composite Insulators of Transmission Lines by Image Analysis
Hydrophobicity of the composite insulators is a parameter which is closely related to the insulation properties. In order to determine whether the insulator in the transmission line needs to be withdrawn, it is necessary to objectively and accurately ...
Xinbo Huang +3 more
doaj +1 more source
Composite insulators have been extensively adopted in electric transmission lines due to their preferable resistance to contamination flashover. To generally ensure the function of power networks, it is of crucial importance to perform regular online ...
Li Cheng +3 more
doaj +1 more source
Interface degradation between mandrel and sheath can cause a decrease in insulation performance and mechanical strength of composite insulators. In this study, the interface ageing properties of cycloaliphatic epoxy resin and silicone rubber composite ...
Yunsong Wang +4 more
doaj +1 more source
Symmetry and localization in periodic crystals: triviality of Bloch bundles with a fermionic time-reversal symmetry [PDF]
We describe some applications of group- and bundle-theoretic methods in solid state physics, showing how symmetries lead to a proof of the localization of electrons in gapped crystalline solids, as e.g. insulators and semiconductors.
Monaco, Domenico, Panati, Gianluca
core +2 more sources
At present, observing the temperature rise of composite insulators is an effective method for the detection of decay‐like defects. However, ambient humidity will affect the temperature rise of composite insulators, which will cause problems in screening ...
Zheng Zhong +4 more
doaj +1 more source
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
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
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Mixed-valence insulators with neutral Fermi surfaces
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
Dual QED3 at "NF = 1/2" is an interacting CFT in the infrared [PDF]
We study the fate of weakly coupled dual QED3 in the infrared, that is, a single two-component Dirac fermion coupled to an emergent U(1) gauge field, but without Chern-Simons term.
Roscher, Dietrich +2 more
core +2 more sources
Dry band formation mechanism of composite insulator with generalized finite difference-time domain
The pollution flashover of composite insulators is mainly the flashover caused by alternate occurrence of arc development and dry band formation. At present, researchers have investigated the development of insulator arc along the surface.
HE Jiahong, DONG Bowen, HE Kang
doaj +1 more source

