Results 61 to 70 of about 19,165 (224)

Generalization of anomaly detection in bridge structures using a vibration‐based Siamese convolutional neural network

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 18, Page 2751-2768, 18 July 2025.
Abstract Corrosion is one of the main damages in steel bridges, which appears as a loss of material and sectional area and causes member failure over time. A reliable bridge management system not only should help in preventing catastrophic structural failure by employing an in‐time anomaly detection approach for all the bridges within a network but ...
Alireza Ghiasi, Zhen Zhang, Zijie Zeng, Ching Tai Ng, Abdul Hamid Sheikh, Javen Qinfeng Shi   +5 more
wiley   +1 more source

Experimental Study on Settlement Behavior of Ballasted Tracks with Polymer Compound-Coated Gravel

Applied Sciences, 2022
The ballast used in ballasted railway tracks transmits load from the rails and ties to the subgrade during train travel, and directly affects the overall track support performance and elastic behavior of the ballasted track.
Jung-Youl Choi
doaj   +1 more source

A direct method for analyzing the vertical vehicle-structure interaction [PDF]

, 2011
A new method for the dynamic analysis of the vertical vehicle-structure interaction is presented. The vehicle and structure systems can be discretized with various types of finite elements and may have any degree of complexity.
A.F.M. Azevedo, Bathe, Benzi, Biggs, Clough, Delgado, Diana, Hughes, Hwang, Knothe, Nielsen, Nielsen, Popp, R. Calçada, S.G.M. Neves, Yang, Yang, Yang, Yang, Yau, Zhai   +20 more
core   +1 more source

Rigid Body Dynamics of Railway Ballast [PDF]

, 2003
A method for the discrete particle simulation of almost rigid, sharply edged frictional particles, such as railway ballast is proposed. In difference to Molecular Dynamics algorithms, the method does not require knowledge about the deformation-force law of the material.
Thomas Schwager, Thorsten Pöschel
openaire   +1 more source

Probiotic‐Based Approaches for Sustainable Control of Infectious Risk in Mass Transport: Current Data and Future Perspectives

Microbial Biotechnology, Volume 18, Issue 6, June 2025.
High‐traffic areas, such as mass transportation environments, can have a significant impact on infection transmission, and chemical disinfection may favour the selection of drug‐resistant microbes. Probiotic‐based approaches have the potential to be a novel and ecologically sustainable option for controlling bioburden and preventing infections ...
Irene Soffritti, Maria D'Accolti, Francesca Bini, Eleonora Mazziga, Antonella Volta, Matteo Bisi, Sante Mazzacane, Elisabetta Caselli   +7 more
wiley   +1 more source

A comparison on the effects of coal fines and sand fouling on the shear behaviors of railway ballast using large scale direct shear tests

Journal of Traffic and Transportation Engineering (English ed. Online)
Railway ballast is easily contaminated by different fouling material and the fouled ballast always causes the deterioration of railway track. Many previous studies focused on the effect of a certain kind of fouling material on ballast performance, but ...
Xu Zhang, Shunying Ji, Yang Feng, Yongjun Li, Chunfa Zhao   +4 more
doaj   +1 more source

Ballast Contamination Mechanisms: A Criterial Review of Characterisation and Performance Indicators

Infrastructures, 2020
Across the world, ballasted railway tracks are utilised extensively due to their cost efficiency, ease of drainage, and capacity to withstand cyclic imposed loadings from heavy trains.
Daniel Bassey, Ben Ngene, Isaac Akinwumi, Victor Akpan, Gideon Bamigboye   +4 more
doaj   +1 more source

Classification of direct threats to the conservation of ecosystems and species 4.0

Conservation Biology, Volume 39, Issue 3, June 2025.
Abstract Identifying and assessing the magnitude of direct threats to ecosystems and species are critical steps to prioritizing, planning, implementing, and assessing conservation actions. Just as medical clinicians and researchers need a standard way to talk about human diseases, conservation practitioners and scientists need a common and ...
Nick Salafsky, Claire Relton, Bruce E. Young, Philippe Lamarre, Monika Böhm, Maxime Chénier, Erica Cochrane, Mark Dionne, Kevin K. He, Craig Hilton‐Taylor, Charles Latrémouille, John Morrison, Calla V. Raymond, Mary Seddon, Varsha Suresh   +14 more
wiley   +1 more source

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   +1 more source

A multilevel track defects assessment framework based on vehicle body vibration

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 12, Page 1688-1720, 9 May 2025.
Abstract High‐frequency detection of track defects is crucial for accurate track condition assessment and system safety. Onboard vibration data collection devices can significantly increase detection density without additional costs. However, defect assessment based on this is significantly challenging, including the spatial heterogeneity of track ...
Xingqingrong Chen, Yuanjie Tang, Rengkui Liu   +2 more
wiley   +1 more source