Results 11 to 20 of about 31,680 (296)

Duality and Dimensionality Reduction Discrete Line Generation Algorithm for a Triangular Grid

open access: yesISPRS International Journal of Geo-Information, 2018
Vectors are a key type of geospatial data, and their discretization, which involves solving the problem of generating a discrete line, is particularly important. In this study, we propose a method for constructing a discrete line mathematical model for a
Lingyu Du   +4 more
doaj   +2 more sources

On the Number of Shortest Weighted Paths in a Triangular Grid

open access: yesMathematics, 2020
Counting the number of shortest paths in various graphs is an important and interesting combinatorial problem, especially in weighted graphs with various applications. We consider a specific infinite graph here, namely the honeycomb grid. Changing to its
Benedek Nagy, Bashar Khassawneh
doaj   +2 more sources

Stress Distribution on Sandwich Structure with Triangular Grid Cores Suffered from Bending Load [PDF]

open access: yesInternational Journal of Aerospace Engineering, 2015
Triangular grid reinforced by carbon fiber/epoxy (CF/EP) was designed and manufactured. The sandwich structure was prepared by gluing the core and composite skins.
Cui Xu   +4 more
doaj   +2 more sources

Reconfiguration of labeled matchings in triangular grid graphs [PDF]

open access: yesCoRR
This paper introduces a new reconfiguration problem of matchings in a triangular grid graph. In this problem, we are given a nearly perfect matching in which each matching edge is labeled, and aim to transform it to a target matching by sliding edges one by one. This problem is motivated to investigate the solvability of a sliding-block puzzle called ``
Kakimura, Naonori, Mishima, Yuta
core   +6 more sources

Sea-ice dynamics on triangular grids [PDF]

open access: yesJournal of Computational Physics, 2021
We present a stable discretization of sea-ice dynamics on triangular grids that can straightforwardly be coupled to an ocean model on a triangular grid with Arakawa C-type staggering. The approach is based on a nonconforming finite element framework, namely the Crouzeix-Raviart finite element.
Carolin Mehlmann, Peter Korn
openaire   +2 more sources

Triangular-grid billiards and plabic graphs

open access: yesCombinatorial Theory, 2023
16 pages, 13 ...
Defant, Colin, Jiradilok, Pakawut
openaire   +5 more sources

Low Sidelobe Pattern Synthesis of Array Antennas With a Triangular or Skew Lattice Using the IFT Method

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
This paper deals with the update of the iterative Fourier transform (IFT) method that makes this method suitable for the low sidelobe pattern synthesis of array antennas having a triangular or skew lattice.
Will P. M. N. Keizer
doaj   +1 more source

A Note on Triple Repetition Sequence of Domination Number in Graphs

open access: yesInPrime, 2022
A set D subset of V(G) is a dominating set of a graph G if for all x ϵ V(G)\D, for some y ϵ D such that xy ϵ E(G). A dominating set D subset of V(G) is called a connected dominating set of a graph G if the subgraph induced by D is connected. A connected
Leomarich F. Casinillo   +2 more
doaj   +1 more source

Simple algorithms to compute meridional overturning and barotropic streamfunctions on unstructured meshes [PDF]

open access: yesGeoscientific Model Development, 2020
Computation of barotropic and meridional overturning streamfunctions for models formulated on unstructured meshes is commonly preceded by interpolation to a regular mesh.
D. Sidorenko   +7 more
doaj   +1 more source

A Universal Generating Algorithm of the Polyhedral Discrete Grid Based on Unit Duplication

open access: yesISPRS International Journal of Geo-Information, 2019
Based on the analysis of the problems in the generation algorithm of discrete grid systems domestically and abroad, a new universal algorithm for the unit duplication of a polyhedral discrete grid is proposed, and its core is “simple unit ...
Li Meng   +6 more
doaj   +1 more source

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