Results 71 to 80 of about 129,371 (270)
International Journal of Geomechanics, 2020 This paper presents a study on the deformation and degradation responses of railway ballast using large-scale laboratory testing and computational modeling approaches.
B. Indraratna +2 more
semanticscholar +1 more source
Processes, 2021 Ballast fouling is a major factor that contributes to the reduction of shear strength of railway ballast, which can further affect the stability of railway supporting structure.
Lu-yu Wang, M. Meguid, H. Mitri
semanticscholar +1 more source
People and Nature, EarlyView.Abstract This study critically analyses the main narratives surrounding the Atlantic blue crab (Callinectes sapidus) in the Lagoon of Venice. We used a mixed‐method approach, performing a qualitative discourse analysis on a sample of 68 textual sources to identify the narratives across two sectors in the management of the case study: media and politics,
Elisa Zanoni +3 more
wiley +1 more source
Grondwet: baken of ballast? [PDF]
Tijdschrift voor Constitutioneel Recht, 2015 4 p.
openaire +3 more sources
, 1973 An improved life raft stabilizer for reducing rocking and substantially precluding capsizing is discussed. The stabilizer may be removably attached to the raft and is defined by flexible side walls which extend a considerable depth downwardly to one ...
Barnett, J. H., Jr. +3 more
core +1 more source
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
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
Communications, 2020 This article deals with replacement of the magnetic grippers on the VPO-3-3000 machines with roller grippers. The novelty lies in establishment of dependences characterizing stress and strain in elements of the lifting and straightening devices and in ...
Adil Kadyrov +3 more
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
Previous Numerical Studies with Deformable Ballast on Body Impacts against Building Edge Protection Systems [PDF]
, 2016 Recent studies with numerical models regarding edge protection systems (EPS), class C according to standard EN 13374, showed that some requirements are inadequate for human safety.
Carrión Jackson, Elena +4 more
core +2 more sources