Results 11 to 20 of about 111,130 (266)

Effects of ambient humidity and thermal aging on properties of Nomex insulation in mining dry‐type transformer

open access: yesHigh Voltage, 2021
Temperature and humidity are the main factors that cause the decomposition of Nomex paper widely used as turn‐to‐turn insulation material of mining dry‐type transformers.
Lu Li   +6 more
doaj   +1 more source

Analyses of partial discharges in dielectric samples under DC excitation [PDF]

open access: yes, 2015
The main focus of the paper is to develop a better understanding of partial discharges under DC excitation. Partial discharges studied will initially be limited to discharges from well-defined discharge sites. These include corona, surface discharges and
Corr, Edward, Siew, W.H.
core   +1 more source

Internal Temperature Detections of Contaminated Silicone Rubber Under Discharge Conditions Based on Fiber Bragg Gratings

open access: yesIEEE Access, 2019
Composite insulators are widely used in power grids at home and abroad. The anti-pollution flashover performance, hydrophobicity and hydrophobic migration, and pollution flashover mechanism of composite insulators have been the focus of international ...
Yanpeng Hao   +6 more
doaj   +1 more source

Study of Intensive Anthropogenic Impacts of Submerged Wastewater Discharges on Marine Water Areas Using Satellite Imagery

open access: yesJournal of Marine Science and Engineering, 2022
This paper focuses on a detailed analysis of coastal waters under the conditions of the intense anthropogenic impacts of submerged wastewater discharges, using optical and radar satellite images.
Valery Bondur, Viktor Zamshin
doaj   +1 more source

Historical changes (1905-2005) in external phosphorus loads to Loch Leven, Scotland, UK [PDF]

open access: yes, 2012
This article reviews historical changes in the total phosphorus (TP) inputs to Loch Leven, Scotland, UK. Data derived from palaeolimnological records suggest that inputs in the early 1900s were about 6 t TP year-1 (0.45 g TP m-2 year-1).
Bennion, H.   +3 more
core   +1 more source

Geometric dependencies of the mean E × B shearing rate in negative triangularity tokamaks

open access: yesNuclear Fusion, 2023
This paper presents a comparative study of the poloidal distribution of the mean E  ×  B shearing rate for positive triangularity (PT) and negative triangularity (NT) tokamaks.
Rameswar Singh   +2 more
doaj   +1 more source

An adaptive Cartesian embedded boundary approach for fluid simulations of two- and three-dimensional low temperature plasma filaments in complex geometries [PDF]

open access: yes, 2019
We review a scalable two- and three-dimensional computer code for low-temperature plasma simulations in multi-material complex geometries. Our approach is based on embedded boundary (EB) finite volume discretizations of the minimal fluid-plasma model on ...
Marskar, Robert
core   +2 more sources

On high brightness temperature of pulsar giant pulses [PDF]

open access: yes, 2015
A wide range of events observed at the giant pulses (high energy density, observed localization of giant pulses (GPs) relative to the average pulse, fine structure of GPs with duration up to some nanoseconds, observed circular polarization of GPs ...
Kontorovich, V. M.
core   +1 more source

Bactericidal effect of corona discharges in atmospheric air [PDF]

open access: yes, 2012
The present paper explores the possibilities of using impulsive and steady-state corona discharges for bio-decontamination operations. A high tension tubular corona electrode was stressed with positive or negative dc voltage with magnitude up to 26 kV ...
Anderson, John   +6 more
core   +1 more source

PVC nanocomposites for cable insulation with enhanced dielectric properties, partial discharge resistance and mechanical performance

open access: yesHigh Voltage, 2020
The current study aims to develop polyvinyl chloride (PVC) nanocomposites with enhanced electrical and mechanical properties by incorporating titanium oxide (TiO(2)) nanoparticles within PVC chains.
Nagat M.K. Abdel-Gawad   +5 more
doaj   +1 more source

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