Results 21 to 30 of about 20,901 (271)

Visualizing Co-Phylogenetic Reconciliations [PDF]

open access: yes, 2017
We introduce a hybrid metaphor for the visualization of the reconciliations of co-phylogenetic trees, that are mappings among the nodes of two trees. The typical application is the visualization of the co-evolution of hosts and parasites in biology.
Calamoneri, Tiziana   +3 more
core   +2 more sources

Analysis of carrying capacity of concrete sleepers for switches and crossings under static and dynamic load

open access: yesGrađevinar, 2014
The testing of bearing capacity under static and fatigue loading is mandatory in case of prestressed concrete sleepers for switches and crossings. The authors present the static testing required according to EN13230-4:2009, and the optional dynamic ...
Dragoljub Drenić   +2 more
doaj   +1 more source

Correction to: Sensitivity enriched multi-criterion decision making process for novel railway switches and crossings − a case study

open access: yesEuropean Transport Research Review, 2021
An amendment to this paper has been published and can be accessed via the original article.
Hitesh C. Boghani   +10 more
doaj   +1 more source

On knot Floer width and Turaev genus [PDF]

open access: yes, 2007
To each knot $K\subset S^3$ one can associated its knot Floer homology $\hat{HFK}(K)$, a finitely generated bigraded abelian group. In general, the nonzero ranks of these homology groups lie on a finite number of slope one lines with respect to the ...
Adam Lowrance, Gilmer, Kauffman, Turaev
core   +2 more sources

Train Type Identification at S&C

open access: yesJournal of Advanced Transportation, 2020
The presented paper concerns the development of condition monitoring system for railroad switches and crossings that utilizes vibration data. Successful utilization of such system requires a robust and efficient train type identification.
Martina Kratochvílová   +4 more
doaj   +1 more source

Performance Evaluation of Carrying Capacity of Prestressed Bearers for Railway Turnouts Using Laboratory Experiments in Vietnam

open access: yesInfrastructures, 2022
Previous studies have addressed railway turnouts (switches and crossings), but research on the performance of 1000 mm gauge turnouts is limited. At present, wooden sleeper structures are used at turnouts in Vietnam.
Tran Anh Dung, Said M. Easa
doaj   +1 more source

The Erd\H{o}s-Szekeres problem for non-crossing convex sets [PDF]

open access: yes, 2013
We show an equivalence between a conjecture of Bisztriczky and Fejes T{\'o}th about arrangements of planar convex bodies and a conjecture of Goodman and Pollack about point sets in topological affine planes.
Dobbins, Michael G   +2 more
core   +1 more source

Under Sleeper Pads in Railway Track

open access: yesCommunications, 2014
Under sleeper pads appear to be suitable measure to improve track quality as a consequence of ballast bed protection against extreme stress. The paper comprises experience of under sleeper pads applications in the Czech Republic in two test sections ...
Otto Plasek   +3 more
doaj   +1 more source

Reliability Analysis of Switches and Crossings – A Case Study in Swedish Railway [PDF]

open access: yesInternational Journal of Railway Research, 2017
It is reported that switches and crossings (S&C) are one of the subsystems that cause the most delays on Swedish Railways while accounting for at least 13% of maintenance costs.
Behzad Ghodrati   +2 more
doaj  

Satellites of Legendrian knots and representations of the Chekanov-Eliashberg algebra

open access: yes, 2012
We study satellites of Legendrian knots in R^3 and their relation to the Chekanov-Eliashberg differential graded algebra of the knot. In particular, we generalize the well-known correspondence between rulings of a Legendrian knot in R^3 and augmentations
Ng, Lenhard, Rutherford, Dan
core   +1 more source

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