Results 21 to 30 of about 402,609 (305)

Charge distribution and electroluminescence in cross-linked polyethylene under dc field [PDF]

open access: yes, 2001
The intent of this paper is to cross-correlate the information obtained by space charge distribution analysis and electroluminescence (EL) detection in cross-linked polyethylene samples submitted to dc fields, with the objective to make a link between ...
A See   +22 more
core   +1 more source

SNS Accumulator Ring design and space charge considerations [PDF]

open access: yesAIP Conference Proceedings, 1998
The goal of the proposed Spallation Neutron Source (SNS) is to provide a short pulse proton beam of about 0.5 {micro}s with average beam power of 1 MW. To achieve such purpose, a proton storage ring operated at 60 Hz with 1 {times} 10{sup 14} protons per pulse at 1 GeV is required.
openaire   +1 more source

Space charge and trap energy level characteristics of SiC wide bandgap semiconductor

open access: yesAIP Advances, 2022
Charge carrier transport and accumulation in silicon carbide (SiC) wide bandgap semiconductors caused by the defect and impurity are likely to lead to serious performance degradation and failure of the semiconductor materials, and the high temperature ...
Chi Chen   +6 more
doaj   +1 more source

Grain boundary space charge effect in Zirconia [PDF]

open access: yes, 2004
According to the space charge concept, oxygen vacancies are depleted in the grain boundary space charge layers of acceptor-doped ZrO2; whereas electrons are expected to accumulate in the space charge layers if present, leading to significant changes in ...
Ding, Y., Guo, X.
core   +1 more source

Influence of Thermal Aging on Space Charge Accumulation and Dissipation of Cross-Linked Polyethylene With Different Cross-Linking Agent Contents

open access: yesIEEE Access, 2020
This article presents the influence of thermal aging on space charge accumulation and dissipation of cross-linked polyethylene (XLPE) with different cross-linking agent contents. In this article, dicumyl peroxide (DCP) and low-density polyethylene (LDPE)
Shuchao Wang   +6 more
doaj   +1 more source

Research progress on space charge characteristics in polymeric insulation [PDF]

open access: yesJournal of Advanced Dielectrics, 2016
Due to their excellent electrical insulation properties and processability, polymer materials are used in many electrical products. It is widely believed that space charge plays an important role for the electric field distribution, conduction, ageing ...
Yibo Zhang   +4 more
doaj   +1 more source

Streamer branching in air: physical model and simulations in fully 3d spatial domain [PDF]

open access: yes, 2015
Fully coupled self-consistent model of streamer branching is presented. The model incorporates inhomogeneities in gas media representing, e.g., large molecular clusters, micro dust particles, etc., which act as centers for localized space charge build-up.
Serdyuk, Yuriy   +2 more
core   +1 more source

Modified Charge Transport Model Under High-Frequency Unipolar Square Wave Voltage

open access: yesFrontiers in Materials, 2022
As the main insulation material of the power electronic transformer (PET), polyimide (PI) is easy to accumulate space charge under the continuous high-frequency pulse voltage, which will threaten the operation of PET and cause electric field distortion ...
Jianxiang Xie   +4 more
doaj   +1 more source

Charge Asymmetry in the Brane World and Formation of Charged Black Holes [PDF]

open access: yes, 2002
In theories with an infinite extra dimension, free particles localized on the brane can leak out to the extra space. We argue that if there were color confinement in the bulk, electrons would be more able to escape than quarks and than protons (which are
Abdel Pérez-Lorenzana   +20 more
core   +2 more sources

Effect of Graphene Coating on Space Charge Characteristic of XLPE and Semiconductive Layer at Different Temperatures

open access: yesIEEE Access, 2019
DC cross-linked polyethylene (XLPE) power cables are being used recently for HV/EHV applications, the reliability of which is claimed to be significantly affected by space charge accumulation in the insulating material.
Zhipeng Lei   +8 more
doaj   +1 more source

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