Results 71 to 80 of about 551,389 (167)

Effects of principal stress rotation and drainage on the resilient stiffness of railway foundations

, 2013
Railway foundations play an integral role in controlling the stability of the overlying track structure and the maintenance of the overall track geometry.
Mamou, A.
core   +1 more source

Northern Adriatic Runoff During Pliocene Sapropel Deposition: Implications for Mediterranean Deoxygenation

Paleoceanography and Paleoclimatology, Volume 41, Issue 9, September 2026.
Abstract The Piacenzian (Pliocene) warm period featured extreme low‐oxygen conditions and organic‐rich (sapropel) sedimentation in the Mediterranean Sea, yet the processes operating along northern borderlands and marginal basins remain poorly constrained.
A. M. Mancini, F. Caridi, G. Marino, R. Capozzi, C. Morigi, F. Dela Pierre, A. Negri   +6 more
wiley   +1 more source

Analysis of Results of Monitoring and Prediction of Quality Development of Ballasted and Ballastless Track Superstructure and its Transition Areas

, 2016
Securing durability of parameter quality of track alignment design and track geometry is a goal of each railway infrastructure manager. To accomplish this goal, various methods and procedures are applied, but they are all based on regular diagnostics ...
Michal Smalo, Libor Izvolt, Janka Sestakova   +2 more
core   +1 more source

The need and benefit of slab track: case of Lithuania

Građevinar, 2017
Slab track structures have been used in the world for several decades now. However, the ballasted track is still much more popular compared to slab track structures, which is primarily due to its lower price. This article reviews and analyses development
Inesa Gailienė, Alfredas Laurinavičius
doaj   +1 more source

Three-Dimensional Dynamic Finite Element Modeling of Transition Zones in Ballasted High-Speed Tracks. [PDF]

JES: Journal of Engineering Sciences
Transition zones in railway tracks, where vertical stiffness changes abruptly such as between ballasted tracks and rigid structures like culverts or bridges, pose significant challenges in high-speed rail lines.
Ahmed Saied Mohammed Hassan, Ahmed Abdelmoamen Khalil, Ahmed Ahmed Elsonbaty, Hassan Younis   +3 more
doaj   +1 more source

Native habitat affinities predict fish invasions with post‐invasion habitat shifts

Journal of Animal Ecology, Volume 95, Issue 9, Page 1762-1777, September 2026.
Initial invasion success is gated by native pre‐adaptations, but post‐invasion establishment is characterized by habitat shifts. We demonstrate that forecasting risk based solely on native niches severely underestimates future ecological impacts, and we provide an empirically validated watchlist of future invaders.
Shahar Chaikin, Tal Gavriel, Avery Deveto, Shahar Malamud, Jonathan Belmaker   +4 more
wiley   +1 more source

Analysis of the Vibration Mitigation Characteristics of the Ballasted Ladder Track with Elastic Elements

, 2019
Despite the fact railways are seen as an environmentally friendly and sustainable form of transport, however, the train-induced vibration has been seen as a negative environmental consequence.
Minghang Li, Yanmei Cao, Weining Liu, Meng Ma, Xiangyu Qu   +4 more
core   +1 more source

Evaluating the Effect of Rail Fastener Failure on Dynamic Responses of Train-Ballasted Track-Subgrade Coupling System for Smart Track Condition Assessment. [PDF]

Materials (Basel), 2022
Xiao Y, Chang Z, Mao J, Zhou S, Wang X, Wang W, Cai D, Zhu H, Long Y.   +8 more
europepmc   +1 more source

The Impact of Russia–Ukraine War in Maritime Data

The World Economy, Volume 49, Issue 9, Page 1907-1923, September 2026.
ABSTRACT This study analyses weekly port calls from 2019 to 2026 to evaluate the Russia–Ukraine war's impact on maritime trade. The data reveals clear structural shifts that Ukrainian traffic moved from high‐risk areas like Odesa to safer Danube River ports.
Daiki Sera, Kenmei Tsubota, Yujiro Wada
wiley   +1 more source

Modal evaluation of railway tracks by finite element techniques

Discover Civil Engineering
Background Railway lines constitute a vital mode of transportation for any nation, and engineers are currently focusing on enhancing their effectiveness and efficiency, which poses a significant challenge.
Gaurav Verma, Nallasivam. K.
doaj   +1 more source