Results 81 to 90 of about 357 (162)

Deep Learning (Fast R-CNN)-Based Evaluation of Rail Surface Defects

Applied Sciences
In current railway rails, trains are propelled by the rolling contact between iron wheels and iron rails, and the high frequency of train repetition on rails results in a significant load exertion on a very small area where the wheel and rail come into ...
Jung-Youl Choi, Jae-Min Han
doaj   +1 more source

Lightweight Convolutional Neural Networks Model and Data Augmentation‐Based Background Regression for Rail Surface Defect Detection

Artificial Intelligence for Engineering, EarlyView.
An ultra‐lightweight semantic segmentation network RailNet with only 0.905 M parameters is proposed for rail surface defect detection. Combined with a CDBM image enhancement and GAN‐based data augmentation, RailNet achieves superior segmentation accuracy and real‐time speed on edge devices.
Ziqing Wu, Weilong Niu, Xiaoguang Sun, Ting Qu, Yihui Zhu   +4 more
wiley   +1 more source

Rail-to-ground Insulation Defect Diagnosis Method Based on Spatiotemporal Correlation of Rail Potential

Chengshi guidao jiaotong yanjiu
Objective The data of various monitoring points regarding rail potential as monitoring object is correlated in time and space, and the direct manifestation of changes in rail-to-rebar structural resistance is reflected in rail potential variation.
Weiguo PAN, Tian LI, Hexiang WU, Xiaopeng HUANG, Wei LIU   +4 more
doaj   +1 more source

An induction heating system for in situ X‐ray diffraction imaging: design, simulation and application to dislocation dynamics in semiconductors

Journal of Synchrotron Radiation, EarlyView.
This work presents a compact induction heating system for time‐resolved in situ X‐ray diffraction imaging. The system enables contact‐free volumetric heating up to approximately 1600°C and provides flexible operation in different operating modes. Its performance is demonstrated through representative diffraction imaging experiments.We present a compact
Merve P. Kabukcuoglu, Nikolaos Sagias, Elias Hamann, Carsten Richter, Marcus Zuber, Kaspars Dadzis, Daniel Hänschke   +6 more
wiley   +1 more source

Market Integration and Nonlinear Price Transmission in 19th‐Century British Wheat Markets

Journal of Agricultural Economics, EarlyView.
ABSTRACT Important developments in infrastructure and institutions characterized 19th‐Century wheat markets in Great Britain. Among these developments was the construction of the national rail system which enabled cheaper and more efficient transport of grain and other bulky cargoes between inland towns and ports.
Barry K. Goodwin, A. Ford Ramsey
wiley   +1 more source

CEO Power and Circular Economy Disclosure: The Moderating Role of Institutional Forces

Business Ethics, the Environment &Responsibility, EarlyView.
ABSTRACT This study investigates the impact of CEO power on circular economy disclosure (CED), highlighting the moderating role of institutional pressures on CEO discretion. The analysis draws on a sample of 8354 multinational companies from the Refinitiv database, covering the period 2013–2022.
Saudi‐Yulieth Enciso‐Alfaro, Isabel‐María García‐Sánchez, Filippo Vitolla, Nicola Raimo   +3 more
wiley   +1 more source

Neurodevelopmental Phenotypes and Brain Anomalies in Individuals With Heterozygous SEMA6A Variants

Clinical Genetics, EarlyView.
SEMA6A plays a role in cell migration and axon guidance in the developing central nervous system. Phenotypes seen in eleven individuals heterozygous for SEMA6A variants included developmental delay, intellectual disability, autism/autistic behaviors, behavioral abnormalities, attention disorders, hypotonia, and brain anomalies.
Evan Burchfiel, Xiaonan Zhao, Nichole M. Owen, Tia Gordon, Mahshid S. Azamian, Eric C. Kao, Fan Xia, Xi Luo, Jill A. Rosenfeld, Seema R. Lalani, Allison P. Ortega, Steven B. Bleyl, Florence Petit, Sulekha Rajagopolan, Bénédicte Demeer, Meredith K. Gillespie, Lijia Huang, Matthew Osmond, Kym M. Boycott, Kyra E. Stuurman, Marjon A. van Slegtenhorst, Haley Soller, Céline Jost, Aurore Garde, Hana Safraou, Laurence Faivre, Victor Faundes, Daryl A. Scott   +27 more
wiley   +1 more source

Story2Board: A Training‐Free Approach for Expressive Visual Storytelling

Computer Graphics Forum, EarlyView.
Abstract We present Story2Board, a training‐free framework for expressive storyboard generation from natural language. Existing methods narrowly focus on subject identity, overlooking key aspects of visual storytelling such as spatial composition, background evolution, and narrative pacing.
D. Dinkevich, M. Levy, O. Avrahami, D. Samuel, D. Lischinski   +4 more
wiley   +1 more source

Management of RCF rail defects

, 2016
Infrastructure Manager should monitor the wear of rail steel and development of defects on the running surface of rails in order to accomplish efficient lifecycle management of rails. According to the collected statistical data on wear as a function of accumulated load, it is possible to create mathematical models of rail steel wear and removal of ...
Popović, Zdenka, Lazarević, Luka, Mićić, Milica   +2 more
openaire   +1 more source

Numerical and experimental assessment of railway-induced ground vibrations generated by IC/IR trains in Brussels

MATEC Web of Conferences, 2015
Nowadays, the rising demand for new railway networks in Brussels is associated to discomfort and disturbance felt by the neighbourhood. This problem is a major concern of inhabitant surrounding rail infrastructure and causes part of the delay in the ...
Kouroussis Georges, Verlinden Olivier
doaj   +1 more source