Results 31 to 40 of about 5,566,782 (273)

Discrete-time COVID-19 epidemic model with chaos, stability and bifurcation

open access: yesResults in Physics, 2022
In this paper, we explore local behavior at fixed points, chaos and bifurcations of a discrete COVID-19 epidemic model in the interior of R+5. It is explored that for all involved parametric values, COVID-19 model has boundary fixed point and also it has
K.S. Al-Basyouni, A.Q. Khan
doaj   +1 more source

Komputasi Aliran Daya Optimal Sistem Tenaga Skala Besar dengan Metode Primal Dual Interior Point

open access: yesJurnal Rekayasa Elektrika, 2016
This paper focuses on the use of Primal Dual Interior Point method in the analysis of optimal power flow. Optimal power flow analysis with Primal Dual Interior Point method then compared with Linear Programming Method using Matpower program.
Syafii Syafii, Ikhwannul Kadri Masrul
doaj   +1 more source

Closure System and Its Semantics

open access: yesAxioms, 2021
It is well known that topological spaces are axiomatically characterized by the topological closure operator satisfying the Kuratowski Closure Axioms. Equivalently, they can be axiomatized by other set operators encoding primitive semantics of topology ...
Yinbin Lei, Jun Zhang
doaj   +1 more source

Applications of pre-open sets

open access: yesApplied General Topology, 2008
Using the concept of pre-open set, we introduce and study topological properties of pre-limit points, pre-derived sets, preinterior and pre-closure of a set, pre-interior points, pre-border, prefrontier and pre-exterior. The relations between pre-derived
Young Bae Jun   +3 more
doaj   +1 more source

Stakeholder Perspectives on Energy Auctions: A Case Study in Roraima, Brazil

open access: yesEnergies, 2023
Energy auctions are commonly used to contract energy projects and are extensively studied from the regulator’s perspective. However, analyzing auctions from the stakeholders’ perspective is critical to determine the impact of regulatory details on the ...
Pedro Meirelles Villas-Bôas   +2 more
doaj   +1 more source

Point Cloud vs. Mesh Features for Building Interior Classification

open access: yesRemote Sensing, 2020
Interpreting 3D point cloud data of the interior and exterior of buildings is essential for automated navigation, interaction and 3D reconstruction. However, the direct exploitation of the geometry is challenging due to inherent obstacles such as noise ...
Maarten Bassier   +2 more
doaj   +1 more source

An Algorithm Based on the Modified Sufficient Conditions of the Inertia-Controlling Method for the Global Solution of a General Quadratic Problem

open access: yesAppliedMath
In this paper, we consider a general quadratic problem (P) with linear constraints that are not necessarily linear independent. To resolve this problem, we use a new algorithm based on the Inertia-Controlling method while replacing the condition of the ...
Said Choufi, Lakhdar Djeffal
doaj   +1 more source

An interior point algorithm for computing equilibria in economies with incomplete asset markets [PDF]

open access: yes, 2004
Computing equilibria in general equilibria models with incomplete asset (GEI) markets is technically difficult. The standard numerical methods for computing these equilibria are based on homotopy methods.
Esteban-Bravo, Mercedes
core   +1 more source

Interior Point Algorithm for Multi-UAVs Formation Autonomous Reconfiguration

open access: yesJournal of Control Science and Engineering, 2016
Here the problem of designing multi-UAVs formation autonomous reconfiguration is considered. Combined with three kinds of cost functions, nonlinear dynamic equations, and four inequality constraints, one nonlinear multiobjective optimization problem is ...
Wang Jian-hong, Rana Javed Masood
doaj   +1 more source

Interior point algorithm for solving farm resource allocation problem

open access: yesApstract: Applied Studies in Agribusiness and Commerce, 2017
This paper introduces interior point algorithm as an alternative approach to simplex algorithm for solving farm resource allocation problem. The empirical result of interior point algorithm is compared with that of the simplex algorithm.
Henry De-Graft Acquah, Sarah Acquah
doaj   +1 more source

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