Results 51 to 60 of about 1,967 (202)
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
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Research on steel rail surface defects detection based on improved YOLOv4 network
Frontiers in Neurorobotics, 2023 IntroductionThe surface images of steel rails are extremely difficult to detect and recognize due to the presence of interference such as light changes and texture background clutter during the acquisition process.MethodsTo improve the accuracy of ...
Zengzhen Mi, Ren Chen, Shanshan Zhao
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Seismic analysis and design of tunnels within fault ground: A review
Deep Underground Science and Engineering, EarlyView.The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang +6 more
wiley +1 more source
Highly Nonlinear Solitary Waves for Rail Buckling Prevention [PDF]
, 2013 One of the major structural problems in the railroads made of continuous welded rails is buckling in hot weather and breakage or pulling apart in cold weather.
Cai, Luyao
core
Carbon emission assessment of tunnel infrastructures: From construction to operation
Deep Underground Science and Engineering, EarlyView.This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long +4 more
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Applied SciencesThe rail is an important factor in railway traffic safety. Surface defects in the rail head comprise a common type of rail damage, and magnetic flux leakage (MFL) technology is applied for its detection.
Yinliang Jia +3 more
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.First integration of ZnO nanorods with aerosol‐printed 3D Ag meshes for UV photodetector. 3D Ag/ZnO enhances light absorption and charge separation by providing a large active surface area for efficient charge generation and a strong UV response.
Elius Hossain +3 more
wiley +1 more source
Review on Processing Control Strategy for Electrochemical Additive Manufacturing
MetalMat, EarlyView.This review systematically summarizes recent progress in processing control strategies for ECAM, with three key regulation dimensions: current monitoring and closed‐loop control, temperature regulation, and electrolyte flow/nozzle design. The roles of these parameters in governing electrochemical kinetics, mass transport, deposition stability, and ...
Xin Li, Yu Xie, Wangping Wu
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Journal of Field Robotics, EarlyView.ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang +3 more
wiley +1 more source
Mechanism Analysis of Spalling Defect on Rail Surface under Rolling Contact Conditions [PDF]
, 2018 Under the wheel/rail contact loading conditions, the microcracks on the rail surface propagate, leading to spalling defect or rail fracture and threatening the travelling safety of high-speed railway directly.
Shihao Cao +4 more
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