Results 1 to 10 of about 183,261 (254)

Discrete Optimization: The Case of Generalized BCC Lattice

open access: yesMathematics, 2021
Recently, operations research, especially linear integer-programming, is used in various grids to find optimal paths and, based on that, digital distance.
Gergely Kovács   +4 more
doaj   +1 more source

Equivalence, Partial Order and Lattice of Neighborhood Sequences on the Triangular Grid

open access: yesMathematics, 2022
In (digital) grids, neighbor relation is a crucial concept; digital distances are based on paths through neighbor points. Digital distances are significant, e.g., in digital image processing for giving an approximation of the Euclidean distance and ...
Benedek Nagy
doaj   +1 more source

Analysis of Traditional and Alternative Methods for Solving Voltage Problems in Low Voltage Grids: An Estonian Case Study

open access: yesEnergies, 2022
Smart Cities can benefit from existing municipal low voltage (LV) distribution grids by supporting public services with permanent power supply and providing grid connection points to distributed generators (DG).
Argo Rosin   +6 more
doaj   +1 more source

Finite-time correlations boost large voltage angle fluctuations in electric power grids

open access: yesJournal of Physics: Complexity, 2023
Decarbonization in the energy sector has been accompanied by an increased penetration of new renewable energy sources in electric power systems.
Melvyn Tyloo   +2 more
doaj   +1 more source

Renewable energy for SDG-7 and sustainable electrical production, integration, industrial application, and globalization: Review

open access: yesCleaner Engineering and Technology, 2023
Traditional electricity is produced from coal, mineral oil, or fossil fuels those have produced a heavy environmental pollution by the greenhouse gas emissions and industrial pollutants.
V.L. Trinh, C.K. Chung
doaj   +1 more source

Dilation and Erosion on the Triangular Tessellation: An Independent Approach

open access: yesIEEE Access, 2018
In this paper, a new idea for morphological operations, i.e., dilation and erosion on the regular triangular tessellation is presented. The triangles have two orientations; they are addressed by zero-sum and one-sum triplets and called even and odd ...
Mohsen Abdalla, Benedek Nagy
doaj   +1 more source

A Fast Tomographic Reconstruction Method for Flame Temperature Distribution Measurement Based on Direct Solution Algorithm

open access: yesFrontiers in Energy Research, 2021
The rapid and accurate measurement of the flame temperature distribution is of great significance to the structural design and health diagnosis of the engine.
Biao Zhang   +4 more
doaj   +1 more source

Bijective, Non-Bijective and Semi-Bijective Translations on the Triangular Plane

open access: yesMathematics, 2019
The triangular plane is the plane which is tiled by the regular triangular tessellation. The underlying discrete structure, the triangular grid, is not a point lattice. There are two types of triangle pixels. Their midpoints are assigned to them.
Khaled Abuhmaidan, Benedek Nagy
doaj   +1 more source

Voltage Multistability and Pulse Emergency Control for Distribution System with Power Flow Reversal [PDF]

open access: yes, 2015
High levels of penetration of distributed generation and aggressive reactive power compensation may result in the reversal of power flows in future distribution grids.
Nguyen, Hung D., Turitsyn, Konstantin
core   +2 more sources

Accurately model the Kuramoto--Sivashinsky dynamics with holistic discretisation [PDF]

open access: yes, 2005
We analyse the nonlinear Kuramoto--Sivashinsky equation to develop accurate discretisations modeling its dynamics on coarse grids. The analysis is based upon centre manifold theory so we are assured that the discretisation accurately models the dynamics ...
A. J. Roberts   +3 more
core   +2 more sources

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