Results 1 to 10 of about 105,486 (265)

Safety evaluation for a high signal operator with electric field exposure induced by contact wires [PDF]

open access: yesArchives of Electrical Engineering, 2021
To evaluate the occupational safety of a high signal operator exposed to the electric field induced by contact wires with a frequency of 50 Hz and a voltage of 27.5 kV, this study established a model of a high signal operator working in the vicinity of ...
Chang-Qiong Yang, Mai Lu
doaj   +1 more source

Effect of Loudspeakers on the In Situ Electric Field in a Driver Body Model Exposed to an Electric Vehicle Wireless Power Transfer System

open access: yesEnergies, 2020
This study computationally evaluates the effect of loudspeakers on the in situ electric field in a driver body model exposed to the magnetic field from a wireless power transfer (WPT) system in an electric vehicle (EV), one with a body made of carbon ...
Junqing Lan, Akimasa Hirata
doaj   +1 more source

Measurements of Electric-Field Strengths in Ionization Fronts during Breakdown [PDF]

open access: yesPhysical Review Letters, 2007
Using laser-induced fluorescence-dip Stark spectroscopy, we performed time-resolved, direct measurements of electric-field strengths during the breakdown phase of a low-pressure, pulsed discharge in xenon. With this experimental technique we could for the first time quantitatively measure the time evolution of the driving force of the plasma breakdown ...
Wagenaars, E.   +2 more
openaire   +3 more sources

Effect of environment and electric field on delayed fracture of piezoelectric ceramics

open access: yesNihon Kikai Gakkai ronbunshu, 2018
Static 4-point bending tests have been carried out with poled PZT under various environmental conditions. The average value of applied stress at which fracture occurred within 48 hours was defined as the delayed fracture strength σdf, and the effects of ...
Kazuhiro KUSUKAWA, Tatsuro KOSAKA
doaj   +1 more source

Consistency Restrictions on Maximal Electric-Field Strength in Quantum Field Theory [PDF]

open access: yesPhysical Review Letters, 2008
Quantum field theory with an external background can be considered as a consistent model only if backreaction is relatively small with respect to the background. To find the corresponding consistency restrictions on an external electric field and its duration in QED and QCD, we analyze the mean-energy density of quantized fields for an arbitrary ...
S P, Gavrilov, D M, Gitman
openaire   +2 more sources

Calculation of electric field strengths at a sharp edge [PDF]

open access: yesInternational Journal of Mass Spectrometry and Ion Physics, 1968
Sharp edges were first used for field ionisation mass spectrometry by Beckey. Although Cross and Robertson found that etched metal foils were more effective than razor blades for field ionisation, blades are very convenient for determination of field ionisation mass spectra, as reported by Robertson and Viney.
Brailsford, David F.   +1 more
openaire   +3 more sources

Effect of Tree Quantity and Distribution on the Electric Field under Transmission Lines

open access: yesApplied Sciences
The electric field of transmission lines has serious negative impacts on residents’ production and life with the expansion of high voltage engineering.
Ziyu Wang   +5 more
doaj   +1 more source

Analysis of electric field distribution at air gap defect and its influencing factors in mine-used high-voltage cable insulatio

open access: yesGong-kuang zidonghua, 2018
In order to know influence factors and laws of electric field distribution with air gap defects in cable insulation, taking mine-used high-voltage XLPE cable as research object, ANSYS finite element software was used to establish cable structure model ...
YANG Shuo   +5 more
doaj   +1 more source

Study of electroinductive disk sensor of electric field strength

open access: yesОмский научный вестник, 2023
Tasks related to the protection of biological and technical objects from the effects of electrical are relevant. One of these tasks is related to the development of electric field strength sensors with specified metrological characteristics.
S. V. Biryukov
doaj   +1 more source

Three-component spherical dual-type electric field strength sensor

open access: yesОмский научный вестник
The article proposes a new design solution for a three-component electroinductive spherical electric field strength sensor with sensitive electrodes in the form of spherical digons and their parts.
S. V. Biryukov
doaj   +1 more source

Home - About - Disclaimer - Privacy