Results 1 to 10 of about 214,032 (169)

Advances in Deformation and Permeability Evolution during Creep of Rocks

open access: yesGeotechnics, 2022
The goal of this paper is to review the research advances in deformation and permeability evolution during the creep of rocks in geoengineering problems through aspects of experiments, models, and methods.
Xiancheng Wu, Zaobao Liu
doaj   +1 more source

The Evolution of “Co-evolution” (Part I): Problem Solving, Problem Finding, and Their Interaction in Design and Other Creative Practices

open access: yesShe Ji: The Journal of Design, Economics and Innovation, 2021
One of the most influential descriptions of design activity emphasizes how problems and solutions “co-evolve.” This concept has somehow escaped critical review and cross-disciplinary comparison, resulting in a fragmented approach to the subject ...
Nathan Crilly
doaj   +1 more source

Using an Improved Differential Evolution for Scheduling Optimization of Dual-Gantry Multi-Head Surface-Mount Placement Machine

open access: yesMathematics, 2021
The difference between dual-gantry and single-gantry surface-mount placement (SMP) machines is that dual-gantry machines exhibit higher complexity and more problems due to their additional gantry robot, such as component allocation and collision.
Cheng-Jian Lin, Chun-Hui Lin
doaj   +1 more source

Traffic optimization in IoT networks [PDF]

open access: yesE3S Web of Conferences, 2021
Since the 2000s, the idea that the Internet could be used for machine-to-machine communication and process automation has emerged. Together with the development of electronic objects capable of communicating with IP protocols, this idea led to the ...
Ouahi Hassan, Mazoul Abdenbi
doaj   +1 more source

Hidden maximal monotonicity in evolutionary variational-hemivariational inequalities

open access: yesNonlinear Analysis, 2021
In this paper, we propose a new methodology to study evolutionary variational-hemivariational inequalities based on the theory of evolution equations governed by maximal monotone operators. More precisely, the proposed approach, based on a hidden maximal
Emilio Vilches, Shengda Zeng
doaj   +1 more source

A Method of Lower and Upper Solutions for Control Problems and Application to a Model of Bone Marrow Transplantation

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2023
A lower and upper solution method is introduced for control problems related to abstract operator equations. The method is illustrated on a control problem for the Lotka–Volterra model with seasonal harvesting and applied to a control problem of cell ...
Parajdi Lorand Gabriel   +2 more
doaj   +1 more source

Evolution of managerial problems from the perspective of management science

open access: yesBusiness: Theory and Practice, 2015
Managerial problems and the process of their solving play an important role both in the theory of management science and practice of organisations’ functioning.
Marek Szarucki
doaj   +1 more source

Entropy - Some Cosmological Questions Answered by Model of Expansive Nondecelerative Universe

open access: yesEntropy, 2003
: The paper summarizes the background of Expansive Nondecelerative Universe model and its potential to offer answers to some open cosmological questions related to entropy.
Miroslav Sukenik, Jozef Sima
doaj   +1 more source

An evolution problem related to nonlinear 2d-magnetoelasticity

open access: yesApplied Mathematics Letters, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Viatcheslav Priimenko   +1 more
openaire   +1 more source

Variable Decomposition for Large-Scale Constrained Optimization Problems Using a Grouping Genetic Algorithm

open access: yesMathematical and Computational Applications, 2022
Several real optimization problems are very difficult, and their optimal solutions cannot be found with a traditional method. Moreover, for some of these problems, the large number of decision variables is a major contributing factor to their complexity;
Guadalupe Carmona-Arroyo   +2 more
doaj   +1 more source

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