Results 81 to 90 of about 99,009 (221)
The interaction between railway vehicle dynamics and track lateral alignment [PDF]
, 2016 Track geometry deteriorates with traffic flow, thus it needs to be regularly restored using tamping or other method. As the deterioration is mainly in the vertical direction this aspect has been widely studied and models for its analysis developed ...
Cencen Gong +3 more
core +1 more source
Evaluating the Risk of Collision of Seals Swimming Within Metres of Operating Tidal Turbines
Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.ABSTRACT We used imaging sonar to continuously monitor wildlife at an operational tidal turbine in the Pentland Firth, Scotland, between May 2022 and June 2023. Of 704 detected seal tracks, 347 occurred during turbine operation and 122 of these were detected directly upstream of the rotating blades in the horizontal plane.
Jessica Montabaranom +4 more
wiley +1 more source
Journal of Traffic and Transportation Engineering (English ed. Online)Railway ballast is easily contaminated by different fouling material and the fouled ballast always causes the deterioration of railway track. Many previous studies focused on the effect of a certain kind of fouling material on ballast performance, but ...
Xu Zhang +4 more
doaj +1 more source
Prediction of Lifespan of Railway Ballast Aggregate According to Mechanical Properties of it
The Baltic Journal of Road and Bridge Engineering, 2017 As the railway lifespan is the main criterion for selection of the aggregate for ballast and for planning the maintenance of the railroad, it is important to define the relationship between the particle load resistant characteristics and a lifetime of ...
Vaidas Ramūnas +4 more
doaj +1 more source
Metabolic and cometabolic degradation of herbicides in the fine material of railway ballast [PDF]
, 2006 Microbial degradation of 3-(3,4-dichlorophenyl)-1,1-dimethylurea (diuron) and mineralization of 4-chloro-2-methylphenoxyacetic acid (MCPA) were studied in soil samples taken from the ballast layers of three Swedish railway embankments. The degradation of
Börjesson, Elisabet +3 more
core +1 more source
Bitumen Emulsion—Mineral Surface Interactions: An NMR Study on the Interface Layer Composition
Magnetic Resonance in Chemistry, Volume 64, Issue 2, Page 170-178, February 2026.We describe a 1H NMR approach to study the interface layer formed by a specified bitumen emulsion in the presence of non‐magnetic as well as magnetic minerals. This approach is based on the consecutive flushing off “bulky” components of the bitumen emulsion and the following extraction of the surface layer material, which can then be analyzed by NMR ...
Andrei Filippov +2 more
wiley +1 more source
Improved Ballast Recovery in Water Treatment [PDF]
, 2016 SUEZ Environnement’s Densadeg XRC™ is a high throughput water clarification unit capable of removing total suspended solids (TSS) with the aid of a high density ballast material.
Canfield, Zach +3 more
core +1 more source
Journal of Geophysical Research: Oceans, Volume 131, Issue 2, February 2026.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
Mid-ocean exchange of container vessel ballast water. 2: effects of vessel type in the transport of diatoms and dinoflagellates from Manzanillo, Mexico, to Hong Kong, China [PDF]
, 1999 Plankton samples were collected from 4 container ships which took on ballast water in Manzanillo, Mexico, and discharged it 21 d later in Hong Kong, China.
Dickman, MD, Zhang, FZ
core +2 more sources