Results 41 to 50 of about 99,009 (221)
Dynamic effect of high speed railway traffic loads on the ballast track settlement [PDF]
, 2011 The traditional ballast track structures are still being used in high speed railways lines with success, however technical problems or performance features have led to non-ballast track solution in some cases.
Gabaldón Castillo, Felipe +2 more
core +1 more source
A physically based fluorescent lamp model for a SPICE or a simulink environment [PDF]
, 2009 This paper describes a method of modeling fluorescent lamps. The lamp model can be implemented in all major circuit simulation software packages, an example has been given for SPICE and Simulink.
Holloway, A.J., Stone, D.A., Tozer, R.C.
core +1 more source
Mesoscale Circulation and Coral Community Disturbance at Isolated Reefs
Global Change Biology Communications, EarlyView.The Loop Current is a seasonally and interannually dynamic mesoscale oceanographic feature in the Gulf of Mexico that strongly influences connectivity and environmental conditions across the region. We investigated the influence of Loop Current variability on coral reef disturbances at isolated reefs in the northwest Gulf, including coral disease ...
Gaby E. Carpenter +7 more
wiley +1 more source
Feasibility studies in relation to the IMO Ballast Water Convention [PDF]
, 2009 This project is aimed to develop possibilities to overcome the difficulties which arise from the implementation of the Ballast Water Convention (IMO 2004).
Kaag, N.H.B.M. +2 more
core +1 more source
Metal Hydrides‐Based Hydrogen Purification Systems—A Review
MetalMat, EarlyView.Metal hydrides as an innovative means to purify hydrogen can enable new avenues in the use of hydrogen as a clean energy vector across its production methods. ABSTRACT This review investigates the critical role of purification for enabling the use of hydrogen from various production pathways.
Cameron Reid +2 more
wiley +1 more source
Rail Track Maintenance Planning: An Assessment Model [PDF]
, 2000 In Australia, railway track maintenance costs comprise between 25-35 percent of total freight train operating costs. Track maintenance planning models have been shown to reduce maintenance costs by 5 to 10 percent though improved planning.
Ferreira, Luis +2 more
core +2 more sources
Journal of Field Robotics, EarlyView.ABSTRACT Collaborative operation of multiple autonomous underwater vehicles (AUVs) can effectively achieve scientific goals that are hard to achieve by independently operated vehicles. Some science payloads are large, expensive, and need to be installed in the vehicle's nose cone. A vehicle can only carry one such payload.
Yanwu Zhang +9 more
wiley +1 more source
Applied Rheology, 2015 An elasto-visco-plastic model of the Cauchy stress is proposed for gluing solution of railway ballast, with an asymptotic timedependent viscosity accounting for the anti-thixotropic and shear-thickening features.
Fang Chung +4 more
doaj +1 more source
Sampling Methodologies and Approaches for Ballast Water Management Compliance Monitoring
Promet (Zagreb), 2011 The human-mediated transfer of harmful organisms via shipping, especially via ballast water transport, has raised considerable attention especially in the last decade due to the negative associated impacts.
Stephan Gollasch, Matej David
doaj +1 more source
Quantification of the Mechanized Ballast Cleaning Process Efficiency Using GPR Technology
Remote Sensing, 2021 Ground Penetrating Radar (GPR) has been used recently for diagnostics of the railway infrastructure, particularly the ballast layer. To overcome ballast fouling, mechanized ballast cleaning process, which increases track occupancy time and cost, is ...
Anna Borkovcová +3 more
doaj +1 more source