Results 21 to 30 of about 457,205 (201)

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

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

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

Nonlinear Channel Estimation for OFDM System by Complex LS-SVM under High Mobility Conditions

open access: yes, 2011
A nonlinear channel estimator using complex Least Square Support Vector Machines (LS-SVM) is proposed for pilot-aided OFDM system and applied to Long Term Evolution (LTE) downlink under high mobility conditions.
Charrada, Anis, Samet, Abdelaziz
core   +2 more sources

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

Potentials' distribution in high resistivity soil around extended grounding electrodes [PDF]

open access: yesVestnik MGTU, 2016
The potential distribution in high resistivity soil around extended grounding electrodes has been described in the paper. The high-voltage polygon has been developed for experimental investigation.
Ivonin V. V.
doaj   +1 more source

Psychosocial Outcomes in Patients With Endocrine Tumor Syndromes: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction The combination of disease manifestations, the familial burden, and varying penetrance of endocrine tumor syndromes (ETSs) is unique. This review aimed to portray and summarize available data on psychosocial outcomes in patients with ETSs and explore gaps and opportunities for future research and care.
Daniël Zwerus   +6 more
wiley   +1 more source

Infinite impulse response modal filtering in visible adaptive optics

open access: yes, 2012
Diffraction limited resolution adaptive optics (AO) correction in visible wavelengths requires a high performance control. In this paper we investigate infinite impulse response filters that optimize the wavefront correction: we tested these algorithms ...
Agapito, G.   +4 more
core   +1 more source

Nozzle contours for minimum particle-lag loss [PDF]

open access: yes, 1963
The flow of a gas-particle mixture through a rocket nozzle is analyzed under the approximation that the particle slip velocity is small compared with the average mixture velocity, using one-dimensional gasdynamics, the Stokes drag law, and corresponding ...
Marble, Frank E.
core   +1 more source

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