Results 31 to 40 of about 2,280,314 (252)

Head-tail modes for strong space charge

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2009
The head-tail modes are described for the space charge tune shift significantly exceeding the synchrotron tune. A general equation for the modes is derived. The spatial shapes of the modes, their frequencies, and coherent growth rates are explored.
A. Burov
doaj   +1 more source

Influence of Polarity Reversal Period and Temperature Gradient on Space Charge Evolution and Electric Field Distribution in HVDC Extruded Cable

open access: yesEnergies, 2022
During the operation of HVDC extruded cables, voltage polarity reversal (VPR) is considered one of the most severe conditions for cable insulation.
Yifan Zhou, Bo Gao, Wei Wang, Ke Song
doaj   +1 more source

Progress of Space Charge Research on Oil-Paper Insulation Using Pulsed Electroacoustic Techniques

open access: yesEnergies, 2016
This paper focuses on the space charge behavior in oil-paper insulation systems used in power transformers. It begins with the importance of understanding the space charge behavior in oil-paper insulation systems, followed by the introduction of the ...
Chao Tang   +5 more
doaj   +1 more source

Effect of Temperature on Space Charge Distribution of Oil–Paper Insulation under DC and Polarity Reversal Voltage

open access: yesEnergies, 2018
The electric field distortion caused by space charge is an important factor affecting the operation reliability of oil–paper insulation in a converter transformer.
Qingguo Chen   +4 more
doaj   +1 more source

Gluon Distributions and Color Charge Correlations in a Saturated Light-cone Wavefunction [PDF]

open access: yes, 2002
We describe the light-cone wavefunction in the saturation regime in terms of the density of gluons per unit of transverse phase space, the occupation number, and in terms of the color charge correlator.
A.H. Mueller   +23 more
core   +3 more sources

Longitudinal space charge debunching and compensation in high-frequency accelerators

open access: yesPhysical Review Special Topics. Accelerators and Beams, 1999
Space charge debunching is a major issue for future high-gradient, high-frequency accelerator techniques. Space charge will set limits on the maximum six-dimensional phase space density obtainable in optical or plasma based accelerators.
L. C. Steinhauer, W. D. Kimura
doaj   +1 more source

Highly conductive polymer nanocomposites for emerging high voltage power cable shields: experiment, simulation and applications

open access: yesHigh Voltage, 2020
High voltage power cables play a critical role in global electricity transmission and distribution. The currently used power cables cannot fulfil the green and sustainable requirement of modern society because of the thermoset nature of cable insulation ...
Xingyi Huang   +6 more
doaj   +1 more source

Studies on charge production from Cs2Te photocathodes in the PITZ L-band normal conducting radio frequency photo injector

open access: yes, 2016
This paper discusses the behavior of electron bunch charge produced in an L-band normal conducting radio frequency cavity (RF gun) from Cs2Te photocathodes illuminated with ps-long UV laser pulses when the laser transverse distribution consists of a flat-
Asova, G.   +22 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Influence of water absorption in flexible epoxy resins on the space charge behaviour [PDF]

open access: yes, 2012
The aim of the current work is to achieve a better understanding of the influence of water uptake in flexible epoxy resins on the space charge dynamics at high electric fields.
Chalashkanov, N. M.   +2 more
core   +1 more source

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