Results 11 to 20 of about 204,808 (307)
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 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
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Comprehensive Evaluation of Operating Speeds for High-Speed Railway: A Case Study of China High-Speed Railway [PDF]
Mathematical Problems in Engineering, 2021 This paper proposes the indicator systems and integrated desirability framework for comprehensive evaluation towards the operating speeds of high-speed railway (HSR). Speed is a crucial piece in the characterization of the HSR system. The debate about what is the most appropriate operating speed continues.
Jiamin Zhang, Jiarui Zhang
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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
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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
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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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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
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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
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Shock and Vibration, 2016 Track stiffness in railway turnouts is variable due to differences in structural composition along the longitudinal direction, which will lead to severe dynamic interaction between train and turnout. In this paper, a transient analysis model is presented
Jingmang Xu +4 more
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A Closed-Form Solution for 3D Source Localization Using Angles and Doppler Shifted Frequencies
IEEE Access, 2023 Moving source localization in 3-D space using frequencies of arrival (FOA) have recently made significant progress with the development of closed-form solutions.
Zhu Jiandong, Ding Ting, Qiao Lijuan
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