Results 21 to 30 of about 363,384 (319)

Space charge behaviours in polyethylene under combined AC and DC electric fields [PDF]

open access: yes, 2014
Polyethylene has been one of the widely studied polymeric insulation materials. One of the major issues related to polymeric materials is the easy formation of space charge which may cause electric field enhancement. In this paper, a numerical simulation
C. Zhou   +3 more
core   +1 more source

Improved space charge transport model in bi-layer dielectrics—considering carrier dynamic equilibrium

open access: yesHigh Voltage, 2020
The Maxwell–Wagner model and bipolar charge transport model both aim at describing the charge transport behaviours in dielectrics. The Maxwell–Wagner model performs well in calculating the polarisation current and electric field distribution, but it is ...
Hucheng Liang   +5 more
doaj   +1 more source

Impact of Different Pressures on Charge Transport in EPDM

open access: yesZhongguo dianli, 2021
Ethylene-propelene-diene monomer (EPDM), as a high-quality insulation material, has been widely used in accessories of cable joints, but it bears a large compressive pressure in the working environment, which may affect its insulation performance.
Yifei HE   +4 more
doaj   +1 more source

Charge and heat transport in ionic conductors [PDF]

open access: yes, 2023
Transport coefficients relate the off-equilibrium flow of locally conserved quantities, such as charge, energy, and momentum, to gradients of intensive thermodynamic variables in the linear regime.
PEGOLO, PAOLO
core  

Electronic transport in DNA [PDF]

open access: yes, 2005
We study the electronic properties of DNA by way of a tight-binding model applied to four particular DNA sequences. The charge transfer properties are presented in terms of localization lengths (crudely speaking, the length over which electrons travel).
Klotsa, Daphne   +3 more
core   +1 more source

Charge transport in a polar metal [PDF]

open access: yesnpj Quantum Materials, 2019
AbstractThe fate of electric dipoles inside a Fermi sea is an old issue, yet poorly explored. Sr$${}_{1-x}$$1−xCa$${}_{x}$$xTiO$${}_{3}$$3 hosts a robust but dilute ferroelectricity in a narrow ($$0.0018\ <\ x\ <\ 0.02$$0.0018<x<0.02) window of substitution.
Jialu Wang   +8 more
openaire   +2 more sources

Charge transport mechanism in low temperature polycrystalline silicon (LTPS) thin-film transistors

open access: yesAIP Advances, 2019
Low-temperature polycrystalline silicon (LTPS) thin-film transistors (TFTs) are recently used in many display applications due to its high mobility and high stability.
Hassan Ul Huzaibi   +5 more
doaj   +1 more source

The influence of frequency of AC component on space charge behaviours in polyethylene under combined AC and DC electric fields [PDF]

open access: yes, 2014
Combined ac and dc voltages may occur in high voltage power transmission system, which bring challenges to the dielectric materials. Generally speaking, space charge is well recognised under high voltage dc conditions but has received little attention ...
C. Zhou   +3 more
core   +1 more source

Decay of Electric Charge on Corona Charged Polyethylene [PDF]

open access: yes, 2007
In this paper, the surface potential decay of corona-charged low density polyethylene (LDPE) films has been investigated. It has been found that for the same sample thickness the faster decay occurs in the sample with a higher charging voltage.
Zhiqiang Xu   +8 more
core   +1 more source

Charge transfer and transport in DNA [PDF]

open access: yesProceedings of the National Academy of Sciences, 1998
We explore charge migration in DNA, advancing two distinct mechanisms of charge separation in a donor (d)–bridge ({Bj})–acceptor (a) system, where {Bj} = B1,B2, … , BNare the N-specific adjacent bases of B-DNA: (i) two-center unistep superexchange induced charge transfer, d*{Bj}a → d∓{Bj}a±, and (ii) multistep charge transport involves charge injection
J, Jortner   +3 more
openaire   +2 more sources

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