Results 1 to 10 of about 166,896 (169)

Efficient embeddings of grids into grids

open access: yesDiscrete Applied Mathematics, 2001
An embedding of a graph \(G\) into a graph \(H\) is a pair of two mappings: an injection \(\phi:V_G\mapsto V_H\) and a routing scheme that maps \(E_G\) into the set of paths in \(H\). The authors consider two embedding parameters: dilation, defined as the length of a longest path in the image of the routing scheme, and the edge-congestion, defined as ...
Markus Röttger, Ulf-Peter Schroeder
exaly   +2 more sources

The applications of anisotropic electrodes in vacuum circuit breakers to increase the switching life [PDF]

open access: yesE3S Web of Conferences, 2021
The article analyzes the disadvantages of the vacuum circuit breaker, the transients that occur during switching, as well as the processes that lead to a decrease in the contact system resource. The simulation of the vacuum circuit breaker electrodes was
Samofalov Yuri   +2 more
doaj   +1 more source

EvoDesigner: Evolving Poster Layouts

open access: yesEntropy, 2022
Frequently, one of the goals of Graphic Design (gd) is discovering disruptive visual solutions that stand out and attract people’s attention. However, due to the increasing democratisation of gd, graphic designers tend to adopt design trends, leading to ...
Daniel Lopes   +2 more
doaj   +1 more source

Assessing the Accessibility of Swimming Pools in Nanjing by Walking and Cycling Using Baidu Maps

open access: yesISPRS International Journal of Geo-Information, 2022
Frequent severe heat waves have caused a series of health problems for urban dwellers. Swimming, an exercise that combines both cooling off and moderate to vigorous physical activity (MVPA), is one solution for alleviating the conflict between urban heat
Yifan Dong   +3 more
doaj   +1 more source

Corrigendum to "Acyclic sum-list-colouring of grids and other classes of graphs" [Opuscula Math. 37, no. 4 (2017), 535-556] [PDF]

open access: yesOpuscula Mathematica, 2018
This note provides some minor corrections to the article [Acyclic sum-list-colouring of grids and other classes of graphs, Opuscula Math. 37, no. 4 (2017), 535-556].
Ewa Drgas-Burchardt, Agata Drzystek
doaj   +1 more source

Roughness Effect on the Flow Past Axisymmetric Bodies at High Incidence

open access: yesAerospace, 2022
The flow at low Mach numbers and high angles of attack over axisymmetric configurations is not symmetric. The mechanism that triggers the asymmetry is a combination of a global (temporal) instability and a convective (spatial) instability.
José Jiménez-Varona   +3 more
doaj   +1 more source

A Big Data Grided Organization and Management Method for Cropland Quality Evaluation

open access: yesLand, 2023
A new gridded spatio-temporal big data fusion method is proposed for the organization and management of cropland big data, which could serve the analysis application of cropland quality evaluation and other analyses of geographic big data.
Shuangxi Miao   +10 more
doaj   +1 more source

Computational Study of Aerodynamic Effects of the Dihedral and Angle of Attack of Biomimetic Grids Installed on a Mini UAV

open access: yesBiomimetics, 2023
In this paper, a numerical analysis of a biomimetic unmanned aerial vehicle (UAV) is presented. Its wings feature three grids at the tip similar to the primary feathers of birds in order to modify the lift distribution over the wing and help in reducing ...
Rafael Bardera   +3 more
doaj   +1 more source

A Core Grid Ontology for the Semantic Grid [PDF]

open access: yesSixth IEEE International Symposium on Cluster Computing and the Grid (CCGRID'06), 2006
In this paper, we propose a Core Grid Ontology (CGO) that defines fundamental Grid-specific concepts, and the relationships between them. One of the key goals is to make this Core Grid Ontology general enough and easily extensible to be used by different Grid architectures or Grid middleware, so that the CGO can provide a common basis for representing ...
Wei, X.   +5 more
openaire   +2 more sources

The Intensity of Urban Sprawl in Poland

open access: yesISPRS International Journal of Geo-Information, 2021
The issues of urban sprawl are current in both global research as well as the sphere of activities by public authorities in developed and developing countries.
Piotr Lityński
doaj   +1 more source

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