Results 91 to 100 of about 31,742 (299)
Impact of wheel shape on the vertical damage of cast crossing panels in turnouts
, 2015 Impact forces generated in the load transfer area of railway crossing panels lead to a range of degradation modes from wear and fatigue of the contacting materials, fatigue of supporting components to ballast/subgrade deterioration.
Grossoni, Ilaria +4 more
core
Advanced Functional Materials, EarlyView.A biomimetic hydrogel derived from neonatal spinal cord ECM (DNSCM) delivers LAMB2 protein and ISP peptide to remodel the inhibitory injury microenvironment. The system sustains drug release, upregulates pro‐regenerative LAMB2, downregulates inhibitory CSPG, and promotes axonal regeneration.
Shiyu Fu +8 more
wiley +1 more source
Railway track stiffness variations - consequences and countermeasures
, 2009 The track stiffness experienced by a train will vary along the track. Sometimes the stiffness variation may be very large within a short distance. One example is when an unsupported sleeper is hanging in the rail. Track stiffness is then, locally at that
Dahlberg, Tore,
core
Advanced Functional Materials, EarlyView.A printed superparamagnetic nanoparticle‐based flux guide enables the realization of a hysteresis‐free three‐axis magnetic sensor. This innovative architecture efficiently redirects out‐of‐plane fields to planar sensing elements, facilitating simultaneous vector detection without complex reset protocols.
Changyeop Jeon +10 more
wiley +1 more source
The development of rail-head acoustic roughness
, 2009 A model of the development of rail-head acoustic roughness on tangent track has been formulated. The model consists of a two-dimensional time domain wheel-rail interaction force calculation, with the normal force used as the input to a two-dimensional ...
Croft, Briony Elizabeth
core
Advanced Functional Materials, EarlyView.Ferroelectric domain variants that are energetically equivalent are expected to remain preserved during polarization reversal. However, phase‐field simulations reveal that inclined domain walls in relaxor ferroelectrics can undergo irreversible elimination during alternating current poling through a proximity effect driven by long‐range elastic ...
Yuan‐Jie Sun +2 more
wiley +1 more source
Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films
Advanced Functional Materials, EarlyView.This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge +4 more
wiley +1 more source
Modeling and Characterization of Complex Dynamical Properties of Railway Ballast
Applied SciencesThe nonlinear mechanical properties of ballasted tracks along railways result in complex dynamics of the vehicle–track systems. Employing localized characterization of ballast and a simplified model might underestimate the vehicle–track system’s ...
Xia Hua +6 more
doaj +1 more source
Numerical investigation of the behavior of approach slabs in transition zone of ballasted track to box culvert in high-speed railway lines [PDF]
Journal of Structural and Construction Engineering, 2016 One of the most important issues in operation of high-speed railway tracks is avoiding to sudden variation of the track stiffness. Culverts and bridges are common areas which this problem is occurred along the railway lines.
Morteza Esmaeili +2 more
doaj
, 2019 Differential settlement leading to the development of track geometry irregularity drives the need for maintenance of ballasted railway tracks. Predicting the development of differential settlement requires an understanding of how train loading and the ...
Le Pen, Louis +3 more
core +1 more source