Results 21 to 30 of about 459,055 (282)

Investigations on the Performance of a New Grounding Device with Spike Rods under High Magnitude Current Conditions

open access: yesEnergies, 2019
In many publications, the characteristics of practical earthing systems were investigated under conditions involving fast-impulse currents of different magnitudes by field measurements.
Abdul Wali Abdul Ali   +4 more
doaj   +1 more source

The Estimation of Lightning Impulses Superimposed onto Pre-Stressed DC Breakdown Voltages Using the Leader Propagation Method

open access: yesEnergies, 2022
The impulse breakdown attributes are of rudimentary importance in the insulation coordination in the gas-insulated switchgear (GIS). The critical voltage waveshape for the insulation is the surge over voltages.
Rashed Meer   +3 more
doaj   +1 more source

New Concept of PLC Modems: Multi-Carrier System for Frequency Selective Slow-Fading Channels Based on Layered SCCC Turbocodes [PDF]

open access: yes, 2015
The article introduces a novel concept of a PLC modem as a complement to the existing G3 and PRIME standards for communications using medium- or high-voltage overhead or cable lines.
Hrad, J., Kekrt, D., Zavrtalek, J.
core   +2 more sources

Equivalent Analysis of Thermo-Dynamic Blow-Off Impulse under X-ray Irradiation

open access: yesApplied Sciences, 2021
X-ray thermodynamic effect is an important damage mode for spacecraft. Blow-off impulse as the main thermodynamic damage parameter has been widely studied by combining laboratory and numerical simulations.
Dengwang Wang   +4 more
doaj   +1 more source

Investigations on the Performance of Grounding Device with Spike Rods (GDSR) with the Effects of Soil Resistivity and Configurations

open access: yesEnergies, 2020
In a recently published work, the characteristics of a new grounding device with spike rods (GDSR) with various arrangements of ground electrodes under high magnitude impulse currents (up to 16 kA), was investigated.
Abdul Wali Abdul Ali   +4 more
doaj   +1 more source

Cluster-Delay Mean Square Consensus of Stochastic Multi-Agent Systems with Impulse Time Windows

open access: yesEntropy, 2021
This paper investigates the cluster-delay mean square consensus problem of a class of first-order nonlinear stochastic multi-agent systems with impulse time windows.
Huan Luo   +5 more
doaj   +1 more source

Frequency-Domain Analysis of Linear Time-Periodic Systems [PDF]

open access: yes, 2004
In this paper, we study convergence of truncated representations of the frequency-response operator of a linear time-periodic system. The frequency-response operator is frequently called the harmonic transfer function. We introduce the concepts of input,
Bernhardsson, Bo   +2 more
core   +1 more source

A comparison of three interactive television AD formats [PDF]

open access: yes, 2009
This study explores the effects of interacting with three current interactive television (iTV) ad formats, using an Australian audience panel. Interaction with iTV ads has positive effects on awareness and net positive thoughts, which increase purchase ...
Bellman, S., Schweda, A., Varan, D.
core   +2 more sources

Impulse Correlation for Partially Filled Detonation Tubes [PDF]

open access: yes, 2004
The effect of nozzles on the impulse obtained from a detonation tube of circular cross section has been the focus of many experimental and numerical studies. In these cases, the simplified detonation tube is closed at one end (forming the thrust surface)
Cooper, M., Schauer, F., Shepherd, J. E.
core   +1 more source

An improved rotating HF signal injection method based on FIR filters for state estimation of BPMSM sensorless control

open access: yesAdvances in Mechanical Engineering, 2017
An improved rotating high-frequency signal injection method based on a finite impulse-response filter for state estimation of bearingless permanent magnet synchronous motor sensorless control is developed in this article.
Wei Ji, Guoding Shi, Bo Xu, Jian Xu
doaj   +1 more source

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