Results 51 to 60 of about 6,224 (227)

Assessing the Role of Longitudinal Variability of Vertical Track Stiffness in the Long-Term Deterioration [PDF]

, 2016
The performance of the railway system in terms of dynamic loading is depending mainly on the track support conditions. Usually, the track stiffness is used as the main parameter to describe the support conditions and is defined as the ratio of the load ...
Bezin, Yann, Grossoni, Ilaria, Ramos Andrade, Antonio   +2 more
core   +1 more source

From products to smart solutions: A value‐creation approach

European Management Review, EarlyView.
Abstract Smart solutions comprise a synergy of products, services, software, connectivity, data, and intelligence. This study examines the evolution of a manufacturer into a smart solution provider, highlighting the role of value‐creation capabilities, activities, and practices. Through a longitudinal, in‐depth single‐case study of a leading technology
Tayyab Warraich, Tuomas Huikkola, Marko Kohtamäki, Sascha Kraus, Yassine Talaoui   +4 more
wiley   +1 more source

Worldwide Invasions of Centrarchidae: The Dark Side of the Sunfish Family

Fish and Fisheries, EarlyView.
ABSTRACT Freshwater fish invasions are major drivers of global ecological change, disrupting native biodiversity and ecosystem functions. However, many invasive fish hold significant socioeconomic value, resulting in conflict over their management. Centrarchidae, which are globally distributed and are important for sportfishing and aquaculture, are now
Neil Angelo Abreo, Jonathan Tibo, António Barbosa Nogueira, Athanasios Nikolaou, Cüneyt Kaya, Ali Serhan Tarkan, Irmak Kurtul, Stelios Katsanevakis, Ronaldo Sousa, Teun Everts, Emili García‐Berthou, John S. Hargrove, Ana Clara Sampaio Franco, Jelger Erik Herder, Julian D. Olden, Darragh J. Woodford, Antonín Kouba, J. Rob Britton, Ismael Soto, Phillip J. Haubrock   +19 more
wiley   +1 more source

Qualitative Analysis of Sleeper Supporting Condition for Railway Ballasted Tracks Using Modal Test

Applied Sciences
During railway operations, changes in the support conditions of sleepers, owing to various internal and external factors, can damage rails and concrete sleepers and alter the structural characteristics of gravel-ballasted tracks. However, current methods
Jung-Youl Choi, Tae Jung Yoon, Sun-Hee Kim   +2 more
doaj   +1 more source

The spread of non‐native species

Biological Reviews, Volume 101, Issue 3, Page 1197-1234, June 2026.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock, Ali Serhan Tarkan, Irene Martín‐Forés, Stelios Katsanevakis, Ronaldo Sousa, Ismael Soto, Andy J. Green, Antonín Kouba, Teun Everts, Victoria Dominguez Almela, Nadège Belouard, Cang Hui, Jamie Bojko, Victor Deklerck, Margaux Boeraeve, Franz Essl, J. Robert Britton   +16 more
wiley   +1 more source

Steel Slag Sub-Ballast for Sustainable Railway Track Infrastructure

Infrastructures
Railway lines require a significant amount of natural raw materials. Industrial by-products can be used instead, reducing the costs of natural aggregate exploration.
Rubens Alves, Ana Ramos, Alexandre Castanheira-Pinto, Sara Rios, Jesús Fernández-Ruiz   +4 more
doaj   +1 more source

Application of Polyurethane Polymer and Assistant Rails to Settling the Abnormal Vehicle-Track Dynamic Effects in Transition Zone between Ballastless and Ballasted Track

Shock and Vibration, 2015
This paper describes tests on a transition section between ballasted and ballastless tracks in the Liupanshui-Zhanyi railway in China. The originally unsettled transition zone is exposed to sudden car shaking and a series of track transition problems ...
Caiyou Zhao, Ping Wang, Qiang Yi, Duo Meng   +3 more
doaj   +1 more source

Field Tests on Eco-Friendly Railway Precast Concrete Slab

Applied Sciences, 2020
This study focuses on evaluating the field performance of a newly developed eco-friendly precast concrete slab track structure for railway/subway systems in Seoul, South Korea.
Taehoon Koh, Moochul Shin
doaj   +1 more source

Nonlinear dynamic responses of ballasted railway tracks using concrete sleepers incorporated with reinforced fibres and pre-treated crumb rubber

Nonlinear Engineering, 2023
Damages on railway sleepers due to heavy impact loads induced by the movement of trains can be reduced by improving their impact resistance. Fibre-reinforced/pre-treated crumb rubber concrete sleepers (RCSs) have the potential to display significant ...
Raj Anand, Ngamkhanong Chayut, Prasittisopin Lapyote, Kaewunruen Sakdirat   +3 more
doaj   +1 more source

Evaluation of Modeling Assumptions for Predicting Structural Damage and Train Derailment Under Earthquake Loading

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 7, Page 1514-1532, June 2026.
ABSTRACT The rapid development of new railway networks and the aging of existing infrastructure in seismic‐prone regions continue to motivate the need for efficient methods to simulate the dynamic behavior of coupled train track structure systems. While detailed train–structure interaction (TSI) models can capture complex mechanisms, they are often too
Miguel A. Gomez, Matthew J. DeJong
wiley   +1 more source