Results 11 to 20 of about 28,479 (242)

A Mathematical Model for a Conceptual Design and Analyses of UAV Stabilization Systems

open access: yesFluids, 2021
This article considers the principle of constructing mathematical models of functionally complex multidimensional multiloop continuous–discrete UAV stabilization systems.
Vadim Kramar   +2 more
doaj   +1 more source

Symmetry and Correspondence of Algorithmic Complexity over Geometric, Spatial and Topological Representations

open access: yesEntropy, 2018
We introduce a definition of algorithmic symmetry in the context of geometric and spatial complexity able to capture mathematical aspects of different objects using as a case study polyominoes and polyhedral graphs.
Hector Zenil   +2 more
doaj   +1 more source

Techniques for modeling photovoltaic systems under partial shading

open access: yesTecnura, 2016
Context: The energy produced by photovoltaic (PV) systems operating under partial shading conditions depends on the connections between the modules and the shading pattern.
Luz Adriana Trejos Grisales   +2 more
doaj   +1 more source

Multiobjective optimization of buffer capacity allocation in multiproduct unreliable production lines using improved adaptive NSGA-II algorithm

open access: yesKuwait Journal of Science, 2020
Buffer capacity allocation occupies an essential position in the designing of production systems. By means of polymorphism analysis on production capacity and capability, the buffer allocation for multi-stage production lines with unreliable machines ...
jianguo duan   +3 more
doaj   +1 more source

A Temporal User Attribute-Based Algorithm to Detect Communities in Online Social Networks

open access: yesIEEE Access, 2020
The world is witnessing the daily emergence of a vast variety of online social networks and community detection problem is a major research area in online social network studies.
Amin Mahmoudi   +3 more
doaj   +1 more source

Information system for ontological modelling the subject areas

open access: yesInformatika, 2022
Objectives. The creation of ontologies of subject areas is considered. The goal is to develop a mathematical model of ontology and the information system for ontological modeling. The task is to reduce the complexity of ontological modeling.Methods.
M. N. Bukharov
doaj   +1 more source

The complex systems parameters mathematical modeling and optimization by global connectivity in CAD

open access: yesScienceRise, 2016
Проанализированы проблемы проектирования, возникающие при многоцелевой оптимизации систем со слабосвязанными аргументами. Выполнена классификация ограничений на оптимизирующие аргументы. Введено понятие «глобальная связность» как межпараметрическое ограничение, влияющее практически на все конструктивные и потребительские свойства системы.
openaire   +4 more sources

Structural and mathematical modeling of Cosserat lattices composed of particles of finite size and with complex connections

open access: yesIOP Conference Series: Materials Science and Engineering, 2018
This article provides a brief review of the work and discussion of the problems related to the discrete structural and generalized continuum models of the Cosserat lattices consisting of particles of finite size and with complex connections. A simple Cosserat lattice, a Cosserat lattice with auxetic properties, and a chiral microstructure are ...
A A Vasiliev, I S Pavlov
openaire   +1 more source

Planning capacity for 5G and beyond wireless networks by discrete fireworks algorithm with ensemble of local search methods

open access: yesEURASIP Journal on Wireless Communications and Networking, 2020
In densely populated urban centers, planning optimized capacity for the fifth-generation (5G) and beyond wireless networks is a challenging task. In this paper, we propose a mathematical framework for the planning capacity of a 5G and beyond wireless ...
Hafiz Munsub Ali   +2 more
doaj   +1 more source

Compressed Sensing Radar Imaging: Fundamentals, Challenges, and Advances

open access: yesSensors, 2019
In recent years, sparsity-driven regularization and compressed sensing (CS)-based radar imaging methods have attracted significant attention. This paper provides an introduction to the fundamental concepts of this area. In addition, we will describe both
Jungang Yang   +3 more
doaj   +1 more source

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