Results 21 to 30 of about 339,697 (206)

Development time for initiating the mechanisms of electrical breakdown in vacuum

open access: yesITM Web of Conferences, 2018
The paper presents the development time of the slowest basic physical phenomena occurring in the mechanisms initiating the electrical breakdown in vacuum.
Twardosz Grzegorz   +2 more
doaj   +1 more source

Simulation of electrical trees in XLPE cable insulation and electric field analysis

open access: yesThe Journal of Engineering, 2018
To understand the non-breakdown phenomenon during the accelerating electrical tree ageing in cross-linked polyethylene (XLPE) cable insulation, the non-breakdown mechanism of electrical tree is investigated in this study.
Gang Ye   +3 more
doaj   +1 more source

Violation of Wiedemann-Franz law at the Kondo breakdown quantum critical point

open access: yes, 2008
We study both the electrical and thermal transport near the heavy-fermion quantum critical point (QCP), identified with the breakdown of the Kondo effect as an orbital selective Mott transition.
C. Pépin   +6 more
core   +1 more source

Surface flashover of oil-immersed dielectric materials in uniform and non-uniform fields [PDF]

open access: yes, 2009
The applied electrical fields required to initiate surface flashover of different types of dielectric material immersed in insulating oil have been investigated, by applying impulses of increasing peak voltage until surface flashover occurred.
Given, M.J.   +6 more
core   +1 more source

Effect of electric pulse on functional groups and methane adsorption characteristics of anthracite coal

open access: yesMeikuang Anquan, 2022
The experiment of electric pulse cracking of anthracite coal from Jiaozishan Coal Mine in Guizhou Province was carried out by using the electric pulse experimental system of fracturing and enhancing permeability of coal.
YAN Fazhi   +5 more
doaj   +1 more source

Strength Reduction in Electrical and Elastic Networks

open access: yes, 2002
Particular aspects of problems ranging from dielectric breakdown to metal insu- lator transition can be studied using electrical o elastic networks. We present an expression for the mean breakdown strength of such networks.First, we intro- duce a method ...
A. Hansen   +27 more
core   +1 more source

Dramatically enhanced electrical breakdown strength in cellulose nanopaper

open access: yesAIP Advances, 2016
Electrical breakdown behaviors of nanopaper prepared from nanofibrillated cellulose (NFC) were investigated. Compared to conventional insulating paper made from micro softwood fibers, nanopaper has a dramatically enhanced breakdown strength.
Jianwen Huang   +3 more
doaj   +1 more source

Amorphized length and variability in phase-change memory line cells

open access: yesBeilstein Journal of Nanotechnology, 2020
The dimensions of amorphized regions in phase-change memory cells are critical parameters to design devices for different applications. However, these dimensions are difficult to be determined by direct imaging.
Nafisa Noor   +4 more
doaj   +1 more source

Non-Linear I-V Characteristics of Double Schottky Barriers and Polycrystalline Semiconductors

open access: yes, 1992
An attempt to determine theoretically the highly non-linear current-voltage (I-V) characteristics of polycrystalline semiconductors, such as ZnO-based varistors, is made from the electrical properties of individual grain boundaries under dc bias.
Bernasconi   +30 more
core   +1 more source

BREAKDOWN VOLTAGE OF MICRON RANGE AIR INCLUSIONS IN CAPACITOR PAPER

open access: yesElectrical engineering & Electromechanics, 2020
Purpose. To substantiate the breakdown mechanism of capacitor paper on the basis of numerical-field models with segmented cross-sections of cylindrical volumes of air and water, and also use the proposed models to determine the breakdown strength of air ...
O. O. Palchykov
doaj   +1 more source

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