Results 11 to 20 of about 216,906 (258)
Communication systems of high‐speed railway: A survey [PDF]
Transactions on Emerging Telecommunications Technologies, 2021 AbstractModern railway services are required to deliver good quality services to the passenger throughout the whole journey. These include improved performances, safety, and reduce delays. There is also the requirement for in‐train customer experience such as infotainment and access to reliable communication systems.
Gheth, Waled +4 more
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Integral Bridge for High-Speed Railway [PDF]
, 2011 The structural continuity of fully integral bridges entails many advantages and some drawbacks. Among the latter, the cyclic expansions and contractions of the deck caused by seasonal thermal variations impose alternating displacements at the piers and ...
Marti Rodriguez, Joaquin +2 more
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Assessment of the worthwhileness of efficient driving in railway systems with high-receptivity power supplies [PDF]
, 2020 Eco-driving is one of the most important strategies for significantly reducing the energy consumption of railways with low investments. It consists of designing a way of driving a train to fulfil a target running time, consuming the minimum amount of ...
Cucala, A. P. +4 more
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A new device for stress monitoring in continuously welded rails using bi-directional strain method
Journal of Modern Transportation, 2018 The technology of continuously welded rails (CWRs) is important in modern railway track structures. To measure rail stress, resistance strain gauges are preferred due to their good stability, sensitivity, and resistance to external interference. Based on
Ganzhong Liu +5 more
doaj +1 more source
Detection of high-speed railway subsidence and geometry irregularity using terrestrial laser scanning [PDF]
, 2014 Subsidence and geometry deformation monitoring are essential for safe transportation on a high-speed railway. Terrestrial laser scanning (TLS) is able to collect dense three-dimensional point data from the survey scene and achieve highly accurate ...
Li, Nan +3 more
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A mathematical model of tortuosity in soil considering particle arrangement
Vadose Zone Journal, 2020 Tortuosity is an important parameter for studying the permeability of soil. Existing studies of soil tortuosity are usually of empirical nature and attempt to relate tortuosity to soil porosity alone.
Sheng Zhang +3 more
doaj +1 more source
A New Mechanism of Canopy Effect in Unsaturated Freezing Soils
E3S Web of Conferences, 2016 Canopy effect refers to the phenomenon where moisture accumulates underneath an impervious cover. Field observation reveals that canopy effect can take place in relatively dry soils where the groundwater table is deep and can lead to full saturation of ...
Teng Jidong +3 more
doaj +1 more source
Temperature field test and prediction using a GA-BP neural network for CRTS II slab tracks
Railway Engineering Science, 2023 The CRTS II slab track, which is connected in a longitudinal direction, is one of the main ballastless tracks in China, with approximately 7365 km of operational track.
Dan Liu +4 more
doaj +1 more source
Advances in Materials Science and Engineering, 2018 A full-scale test model with a distinct loading system is developed to analyze the dynamic change process of ballast beds under cyclic longitudinal reciprocated loading.
Jieling Xiao +5 more
doaj +1 more source
High Speed Railway Wireless Communications: Efficiency v.s. Fairness
, 2014 High speed railways (HSRs) have been deployed widely all over the world in recent years. Different from traditional cellular communication, its high mobility makes it essential to implement power allocation along the time.
Dong, Yunquan +2 more
core +2 more sources