Results 1 to 10 of about 9,576 (292)

The Impact of Intra-Seasonal Oscillation on Westward Track Deflection of Super Typhoon Fitow (2013)

open access: yesAtmosphere, 2022
Typhoon Fitow (2013) took an unusual westward track deflection after a lengthy northward movement over the western North Pacific (WNP). Based on observation and wave analysis, it is found that the track deflection of Fitow is attributed to the transition
Guanghua Chen   +2 more
exaly   +4 more sources

Railway track deflection analysis by using evolutionary algorithms

open access: yesActa Polytechnica CTU Proceedings, 2022
In contrast to numerical methods, analytical modelling of the railway track is one of the less time-consuming and computationally demanding methods which, in combination with the computing power commonly available today, can form an effective tool for ...
Pavel Kulich, Otto Plášek
doaj   +4 more sources

Automated processing of railway track deflection signals obtained from velocity and acceleration measurements. [PDF]

open access: yesProc Inst Mech Eng F J Rail Rapid Transit, 2018
Measurements of low-frequency vibration are increasingly being used to assess the condition and performance of railway tracks. Displacements used to characterise the track movement under train loads are commonly obtained from velocity or acceleration signals.
Milne D, Pen LL, Thompson D, Powrie W.
europepmc   +8 more sources

A General Finite Beam on Tensionless Foundation Model for Rail Track Characterization and Evaluation [PDF]

open access: yesSensors
Rail infrastructure plays an important role in freight and passenger mobility, and the assessment of rail track structure depends critically on understanding how the rail interacts with the supporting foundation.
Hamoud H. Alshallaqi, Brett A. Story
doaj   +2 more sources

Field studies on sleeper deflection and ballast pressure in heavy haul track [PDF]

open access: yesAustralian Journal of Structural Engineering, 2018
Deflection of sleepers (vertical displacement) and ballast pressure (vertical stress) under traffic loads are two important performance indicators for determination of rail track quality. Excessive values of these parameters can adversely affect the track structural stability, accelerate the track deterioration and consequently affect the safety of ...
Hossein Askarinejad   +2 more
exaly   +3 more sources

Track Deflection Monitoring for Railway Construction Based on Dynamic Brillouin Optical Time-Domain Reflectometry. [PDF]

open access: yesSensors (Basel)
Real-time online monitoring of track deformation during railway construction is crucial for ensuring the safe operation of trains. However, existing monitoring technologies struggle to effectively monitor both static and dynamic events, often resulting in high false alarm rates.
Zhang T, Zhou L, Liu W, Cheng L.
europepmc   +4 more sources

Exploring the Evolution of Typhoon Lekima (2019) Moving Offshore Northeast of Taiwan with a Multi-Resolution Global Model

open access: yesAtmosphere, 2022
Typhoon Lekima occurred in early August 2019 and moved northwestward toward Taiwan. During offshore passage, the typhoon underwent rapid intensification, with a northward deflected track, moving closer to northeastern Taiwan.
Ching-Yuang Huang   +2 more
doaj   +1 more source

MR-Tracked Deflectable Stylet for Gynecologic Brachytherapy

open access: yesIEEE/ASME Transactions on Mechatronics, 2022
Brachytherapy is a radiation based treatment that is implemented by precisely placing focused radiation sources into tumors. In advanced interstitial cervical cancer bracytherapy treatment, this is performed by placing a metallic rod ("stylet") inside a hollow cylindrical tube ("catheter") and advancing the pair to the desired target.
Anthony L. Gunderman   +7 more
openaire   +3 more sources

A Numerical Study for Tropical Cyclone Atsani (2020) Past Offshore of Southern Taiwan under Topographic Influences

open access: yesAtmosphere, 2022
Tropical Cyclone Atsani occurred in late October 2020 and moved westward offshore south of Taiwan. During its offshore passage, the cyclone deflects northward as it closes to the southern end of Taiwan.
Ching-Yuang Huang   +6 more
doaj   +1 more source

Effect of bending and compressive modulus of elasticity on the behaviour of timber-alternative railway sleepers supported by ballast

open access: yesCase Studies in Construction Materials, 2021
Alternative railway sleeper technologies for replacement of timber are made of materials possessing a wide range of bending and compressive moduli. This poses a great challenge to railway authorities and engineers in designing a railway track supported ...
Choman Salih   +6 more
doaj   +1 more source

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