Results 41 to 50 of about 18,219,725 (307)

Improving the activity of waste concrete recycled powder by a mechanical-microwave combing method [PDF]

open access: yesRailway Sciences
PurposeThe efficient utilization of recycled concrete powder (RCP) has attracted much attention. To break through the limitation of single activation technology of RCP, this study investigates the effects of a mechanical-microwave method on the ...
Henan Shi   +5 more
doaj   +1 more source

A Comprehensive Review on Additive Manufacturing of Smart Components: Technologies, Applications, and Future Scope

open access: yesAdvanced Intelligent Systems, EarlyView.
How can additive manufacturing enable components that sense, adapt, heal, and power themselves? This review synthesizes recent advances in smart functionalities, manufacturing technologies, and intelligent design strategies, revealing a pathway toward fully integrated, autonomous, and multifunctional systems across diverse engineering sectors. Additive
Aiswarya Rony   +3 more
wiley   +1 more source

Investigation on the rolling contact fatigue cracks initiation of subway fixed frogs based on transient dynamics

open access: yesRailway Engineering Science
The issue of fatigue damage to rails has become increasingly prominent with the rise in subway traffic and speed. The hazardous space of the turnout frog significantly intensifies the dynamic interaction between the vehicle and the frog rail, leading to ...
Zhaoguang Zheng   +5 more
doaj   +1 more source

An Innovative and Efficient Method for Reverse Design of Wheel-Rail Profiles

open access: yesApplied Sciences, 2018
Well-designed wheel-rail profiles are not only helpful in achieving expected dynamic vehicle performance but also in extending the service lives of wheels and rails.
Rong Chen   +5 more
doaj   +1 more source

On the Crosswind Stability of High Speed Railway Vehicles [PDF]

open access: yesRail Transportation, 2006
The crosswind stability against overturning is a major design criterium for high speed railway vehicles. Due to the increasing interoperability in Europe it has also become an important international task. In recent years efforts have been made to derive an uniform rule in certifying railway vehicles.
Wetzel, Christian, Proppe, Carsten
openaire   +3 more sources

Using pre‐ and post‐entry data to identify the effect of ethanol plant entry on the spatial pattern of corn prices: A study in Indiana

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract We estimate the long‐run effect of ethanol plant entry on local corn prices using a long‐horizon difference‐in‐differences framework that combines matching with fixed effects while explicitly accounting for treatment intensity and spatial heterogeneity.
Jinho Jung   +2 more
wiley   +1 more source

Effect of Surface Hardening on Dynamic Frictional Rolling Contact Behavior and Degradation of Corrugated Rail

open access: yesShock and Vibration, 2019
The present study was undertaken to evaluate the effect of surface hardening technology on dynamic frictional rolling contact behavior and degradation of corrugated rail in Shenzhen.
Yuan Gao   +3 more
doaj   +1 more source

Atrial Fibrillation Detection Algorithm Based on Graph Convolution Network

open access: yesIEEE Access, 2023
Atrial fibrillation (AF) is a common type of arrhythmia with a high incidence and risk, and it is difficult to monitor. Deep learning-based algorithms for AF detection have made preliminary progress, with Recurrent Convolution Neural Networks (RCNN ...
Hua Ma, Lingnan Xia
doaj   +1 more source

Integrating Remote Sensing, Archaeological Survey and Geophysical Prospections for the Enhancement of Roman Doclea, Montenegro

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT The Roman city of Doclea is a key archaeological site of Montenegro, valued for its impressive remains and its role in the nation's cultural identity within European and the Mediterranean history. Doclea was the second‐largest city in the province of Roman Dalmatia, a municipium created in the first century ad and named after the Illyrian ...
Tatjana Koprivica   +5 more
wiley   +1 more source

The influence of structural response on ballast performance on a high speed railway

open access: yes, 2014
Track for modern ballasted high speed railway lines typically uses continuous welded rail with continuous ballast. Continuous ballast is often specified over features involving discontinuity of track support including structural movement or expansion ...
Powrie, W.   +6 more
core   +1 more source

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