Results 21 to 30 of about 343,105 (330)

Electrical tree modelling in dielectric polymers using a phase-field regularized cohesive zone model

open access: yesMaterials & Design, 2023
Electrical treeing is a leading cause to the eventual breakdown of dielectric polymers under high voltages. This paper presents a simulation scheme developed based on the phase-field regularized cohesive zone model (PF-CZM) for electrical tree modelling.
Qi Wang   +7 more
doaj   +1 more source

Electrical breakdown in tissue electroporation [PDF]

open access: yesBiochemical and Biophysical Research Communications, 2015
Electroporation, the permeabilization of the cell membrane by brief, high electric fields, has become an important technology in medicine for diverse application ranging from gene transfection to tissue ablation. There is ample anecdotal evidence that the clinical application of electroporation is often associated with loud sounds and extremely high ...
Guenther, Enric   +4 more
openaire   +4 more sources

Mitigation of electrical treeing at high temperature in nano‐SiO2 doped epoxy resin

open access: yesHigh Voltage, 2023
In this work, electrical tree inception and ageing experiments were conducted to investigate the initiation, growth characteristics and structural characteristics of electrical trees of nano‐SiO2 doped epoxy resin at different temperatures.
Yuanyuan Li   +4 more
doaj   +1 more source

Electrical response and pore structure evolution affected by cyclical plasma breakdown

open access: yesMeitan xuebao, 2023
Artificial improvement of coal seam permeability is the key to solve the low gas drainage efficiency and prevent gas dynamic disaster. Plasma based on physical discharge is one of the effective means of coal seam antireflection. However, previous studies
Xiangliang ZHANG   +3 more
doaj   +1 more source

Numerical simulation study of rock breaking mechanism by high voltage electric pulse

open access: yes矿业科学学报, 2023
High-voltage electric pulse(HVEP)drilling has become a new and efficient rock breaking method, which is also the research focus in the field of drilling speed increase.
Liu Weiji   +3 more
doaj   +1 more source

Study Of Measurements Leakage Current In Oil Transformer

open access: yesDiyala Journal of Engineering Sciences, 2020
The oil transformer is used in (H.V ) ment's to avoid the electrical breakdown , and heat effect ,so that the oil using as an insulation  and cooling in electrical  instruments to prevent the failure in the transformer. In our research  the measurements
Hassan J. Mohammed
doaj   +1 more source

Investigation of the Electrical Properties of Mineral Oils with and without Carbon Nanotube Concentration under Different Magnetic Fields Applied in Transformer Applications

open access: yesEnergies, 2023
The increased voltage loading of transformers has led to research on improving transformers’ lifespans to meet demand. Insulation oil acts as cooling medium that can significantly affect the performance of a transformer.
Stephanie Azlyn Anak Felix   +5 more
doaj   +1 more source

Evanescently-coupled hybrid III-V/silicon laser based on DVS-BCB bonding [PDF]

open access: yes, 2010
© 2014 IEEE. Controllable electrical breakdown of multiwall nanotubes (MWNTs) is studied utilizing the atomic force microscopy (AFM). Electrical breakdown has been known as the way to fundamentally understand the electrical properties of nanotubes and an
Heck, J   +5 more
core   +2 more sources

Device for testing arc breakdown and spark gap protection devices

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2021
THE PURPOSE. To justify the need to use an arc breakdown protection device (ABPD) in electrical networks up to 0.4 kV, in order to reduce the number of fires.
Yu. N. Erashova   +3 more
doaj   +1 more source

A Comparison of Electrical Breakdown Models for Polyethylene Nanocomposites

open access: yesApplied Sciences, 2022
The development of direct current high-voltage power cables requires insulating materials having excellent electrically insulation properties.
Zhaoliang Xing   +5 more
doaj   +1 more source

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