Results 11 to 20 of about 11,029 (268)
Railway car routing optimization based on the coordinated utilization of station‐line capacities
To optimize railway car routing based on balanced station‐line capacities, thereby improving railway freight traffic organization efficiency, and reducing transportation costs, a railway car routing optimization model based on the coordinated utilization
Li Guangye +4 more
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Analysis and Optimization of the Causes of Cracks in the Pavement of Highway and Railway Intersections [PDF]
Firstly, an in-depth analysis is conducted on the principle of crack formation in the pavement panel of highway and railway level crossings and the reasons for cracks under load. Then, based on the characteristics of crack formation in the pavement panel,
Huang Xingqi +3 more
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Study on Vertical Dynamic Characteristics of Composite Sleeper Ballasted Track in Tunnels [PDF]
In order to study the vertical dynamic characteristics of the composite sleeper ballasted track in tunnels, this paper establishes a dynamic model based on the finite element method, and compares the dynamic response of vehicle, wheel and rail systems ...
ZHAO Zhenhang +3 more
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A new device for stress monitoring in continuously welded rails using bi-directional strain method
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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A New Mechanism of Canopy Effect in Unsaturated Freezing Soils
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
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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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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Temperature field test and prediction using a GA-BP neural network for CRTS II slab tracks
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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A Closed-Form Solution for 3D Source Localization Using Angles and Doppler Shifted Frequencies
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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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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