Results 21 to 30 of about 15,789,290 (304)
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
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
Transmission Interference Improvement of Railway Communication via Distributed Antennas System. [PDF]
, 2010 Transmission interference is a key performance indicator of railway digital mobile communication system(RDMCS), whose performance will become worse in high-speed railway.
Zhangdui Zhong +7 more
core +1 more source
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
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
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
doaj +1 more source
Numerical modelling of ground borne vibrations from high speed rail lines on embankments [PDF]
, 2013 A three dimensional numerical model is presented capable of modelling the propagation and transmission of ground vibration in the vicinity of high speed railways.
Giannopoulos, A +5 more
core +1 more source
Hot Tensile Behavior of 05Cr17Ni4Cu4Nb Stainless Steel: Damage Model and Fracture Characteristics
MetalsThis study investigates the hot tensile behavior and fracture characteristics of 05Cr17Ni4Cu4Nb stainless steel through isothermal tensile tests conducted under various deformation parameters.
Jing Yuan +3 more
doaj +1 more source
Advances in Materials Science and Engineering, 2014 Uniaxial compression test of cement asphalt (CA) mortar specimens, due to drying and wetting cycle of 0, 2, 4 and 8 times, is carried out by using the electronic universal test machine, with the strain rate ranging from 1 × 10−5 s−1 to 1 × 10−2 s−1.
Ping Wang +4 more
doaj +1 more source
Estimation of railway vehicle speed using ground vibration measurements [PDF]
, 2014 In railway noise and vibration assessment, the vehicle speed is a significant concern, since vehicle/track and track/soil interaction strongly affects the vibration magnitude.
Verlinden, Olivier +4 more
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