Results 61 to 70 of about 6,118 (211)
Discreet element modeling of under sleeper pads using a box test [PDF]
It has recently been reported that under sleeper pads (USPs) could improve ballasted rail track by decreasing the sleeper settlement and reducing particle breakage.
A Johansson +35 more
core +2 more sources
Abstract In 2024 an anomalous region of low chlorophyll water covering ∼721,000 km2 or 1.7% of North Atlantic surface area dominated the Northeast Atlantic. This feature formed during spring, remained identifiable as a region of low chlorophyll throughout the summer months in temperate and subpolar waters and, due to low opal ballasting potential of ...
S. C. Painter +9 more
wiley +1 more source
Steel Slag Sub-Ballast for Sustainable Railway Track Infrastructure
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 +4 more
doaj +1 more source
Buckling of a ballasted curved track under unloaded conditions
There is no industry accepted analytical model to compute the critical temperature differential for the buckling of an unloaded curved track in North American literature.
Nazmul Hasan
doaj +1 more source
In this paper, the simple dynamic model for calculation of the axle-box acceleration (ABA) is established for conveniently detecting rail breakage on trains.
Hiroyuki AIZAWA +2 more
doaj +1 more source
General and Technical Considerations for Implementing High Speed Rail Systems in Australia [PDF]
Australia has a number of medium speed rail services such as the Prospector, which runs from East Perth to Kalgoorlie, at speeds of up to 160 km/hr. Speeds as high as 210 km/hr have been reached by the tilt train from Brisbane to Rockhampton.
Fatahi, B, Khabbaz, H
core
Assessing the Role of Longitudinal Variability of Vertical Track Stiffness in the Long-Term Deterioration [PDF]
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 +2 more
core +1 more source
Seasonal Changes in Marine Archaeal Tetraether Lipid Export Depth Linked to Net Primary Productivity
Abstract Marine ammonia oxidizing archaea (AOA) produce isoprenoid glycerol dibiphytanyl glycerol tetraethers (GDGTs) which form the basis of seawater temperature proxy TEX86. Although most studies use TEX86 for sea surface temperature (SST) reconstructions, maximum GDGT production occurs at and below the nitracline. Moreover, sedimentary GDGT‐2/GDGT‐3
Addison Rice +12 more
wiley +1 more source
Properties and Limitations of eDNA Substrates for Terrestrial Animal Monitoring
ABSTRACT Environmental DNA (eDNA) constitutes a valuable tool for monitoring terrestrial animal diversity, but outcomes are affected by multiple factors. Among these factors, the choice of sampling substrate and method is especially important and must be aligned with research objectives.
Beilun Zhao, Tobias Andermann
wiley +1 more source
Abstract This paper contributes to the understanding of the complex relationship between British economic performance during the Napoleonic wars and the ‘West Indies’, as the Caribbean slave colonies were called. Not only did profits from slave‐based commerce provide financing for the growth of the financial sector, as has been claimed, but the risk of
Carolyn Sissoko, Mina Ishizu
wiley +1 more source

