Results 11 to 20 of about 11,029 (268)

Railway car routing optimization based on the coordinated utilization of station‐line capacities

open access: yesIET Intelligent Transport Systems, 2023
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
doaj   +1 more source

Analysis and Optimization of the Causes of Cracks in the Pavement of Highway and Railway Intersections [PDF]

open access: yesE3S Web of Conferences
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
doaj   +1 more source

Study on Vertical Dynamic Characteristics of Composite Sleeper Ballasted Track in Tunnels [PDF]

open access: yesMATEC Web of Conferences, 2019
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
doaj   +1 more source

A new device for stress monitoring in continuously welded rails using bi-directional strain method

open access: yesJournal 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

A New Mechanism of Canopy Effect in Unsaturated Freezing Soils

open access: yesE3S 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

A mathematical model of tortuosity in soil considering particle arrangement

open access: yesVadose 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

Evolution of Longitudinal Resistance Performance of Granular Ballast Track with Durable Dynamic Reciprocated Changes

open access: yesAdvances 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

Temperature field test and prediction using a GA-BP neural network for CRTS II slab tracks

open access: yesRailway 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

A Closed-Form Solution for 3D Source Localization Using Angles and Doppler Shifted Frequencies

open access: yesIEEE 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
doaj   +1 more source

Stiffness Characteristics of High-Speed Railway Turnout and the Effect on the Dynamic Train-Turnout Interaction

open access: yesShock 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
doaj   +1 more source

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