Results 51 to 60 of about 18,753 (176)
Analytical Frameworks and Theories of Electric Power in Non‐Linear Circuits
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.Based on the challenges of distorted currents and non‐linear components in modern power grids, this article reviews seminal electrical power theories that seek to generalize the traditional definitions of active, reactive, and apparent power. It provides a detailed analysis of their mathematical foundations, practical implementation, and validity.
Rafael Escudero, Luis Ibarra
wiley +1 more source
Metabolic and cometabolic degradation of herbicides in the fine material of railway ballast [PDF]
, 2006 Microbial degradation of 3-(3,4-dichlorophenyl)-1,1-dimethylurea (diuron) and mineralization of 4-chloro-2-methylphenoxyacetic acid (MCPA) were studied in soil samples taken from the ballast layers of three Swedish railway embankments. The degradation of
Börjesson, Elisabet +3 more
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Treatment and recovery of contaminated railway ballast [PDF]
TURKISH JOURNAL OF ENGINEERING AND ENVIRONMENTAL SCIENCES, 2014 Experimental tests of metal extraction from stones sampled from articially contaminated railway ballasts are presented and discussed. Metal extraction was performed by washing with aqueous solutions of disodium ethylenedi- aminetetraacetate (EDTA), at selected concentrations. The eectiveness of the remediation process was evaluated using leaching tests.
DI PALMA, Luca, PETRUCCI, Elisabetta
openaire +2 more sources
RailNet: Railway Track Anomaly Detection via Image Processing With Hybrid Deep Learning Techniques
IET Image Processing, Volume 20, Issue 1, January/December 2026.Our model leverages a DenseNet121 backbone combined with advanced neural network layers to achieve high accuracy in identifying and classifying track defects. The dataset, consisting of images of railway tracks with and without faults, was rigorously augmented to enhance model robustness.
Umair Saeed +8 more
wiley +1 more source
Shear resistance improvement of oil-contaminated ballast layer with rubber shred inclusions [PDF]
, 2016 Railway ballast, which form an integral part of rail tracks, is highly susceptible to subsistence due to both vibration transmitted by the passing trains, as well as the breakage of ballasts with repeated impact.
Chan, Chee Ming +1 more
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Yielding of rockfill in relative humidity-controlled triaxial experiments [PDF]
, 2016 The final publication is available at Springer via http://dx.doi.org/10.1007/s11440-016-0437-9The paper reports the results of suction controlled triaxial tests performed on compacted samples of two well graded granular materials in the range of coarse ...
Alonso Pérez de Agreda, Eduardo +2 more
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IET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.A deep learning framework integrated with a 2D train track bridge simulation model is developed to classify corrugation and ballast faults from vibration signals using time frequency analysis. The method achieves high accuracy and supports predictive maintenance for railway infrastructure.
Shahzor Memon +6 more
wiley +1 more source
The small-strain stiffness of a railway ballast
GéotechniqueThe large particle sizes of railway ballast and rock fill have meant that conventional techniques used to measure the small-strain stiffness of finer geomaterials have not been adopted, with the consequence that their stiffnesses are poorly defined.
Altuhafi, FN, Coop, Matthew Richard
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The Journal of Engineering, Volume 2026, Issue 1, January/December 2026.ABSTRACT Decarbonizing the intercity rail in sub‐Saharan Africa requires the use of energy architectures that go beyond traditional grid reliance at the expense of traction performance. This paper introduces a novel photovoltaic (PV)‐assisted hybrid traction topology for a 42 km Pretoria–Sandton rail corridor in South Africa, where between‐rail PV ...
Chinedu T. Obe, Nnamdi I. Nwulu
wiley +1 more source
Fast computation: a steady-state simulation of railways ballasted track settlement [PDF]
, 2017 Geometryofballastedrailwaystrackisamajorconcerninrailroadssafetyand efficiency. Settlement of railways ballast has been studied to help railway infrastructure managers to keep infrastructures in shape and to prevent accidents.
Badinier, Thibault +2 more
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