Results 21 to 30 of about 88,443,461 (253)

Application of differential evolution to power system stabilizer design [PDF]

open access: yes, 2012
Includes synopsis.Includes bibliographical references.In recent years, many Evolutionary Algorithms (EAs) such as Genetic Algorithms (GAs) have been proposed to optimally tune the parameters of the PSS. GAs are population based search methods inspired by
Mulumba, Tshina Fa
core   +1 more source

RBF-PS method for approximation and eventual periodicity of fractional and integer type KdV equations

open access: yesPartial Differential Equations in Applied Mathematics, 2022
In engineering and mathematical physics nonlinear evolutionary equations play an important role. KdV equation is one of the famous evolution equation appeared in the theory of shallow water waves with large wave length and small wave amplitude ...
Marjan Uddin   +2 more
doaj   +1 more source

A class of abstract quasi-linear evolution equations of second order [PDF]

open access: yes, 1999
In this paper we study the abstract quasi-linear evolution equation of second order formula here in a general banach space z. it is well-known that the abstract quasi-linear theory due to kato [10, 11] is widely applicable to quasi-linear partial ...
NAOKI TANAKA, Tanaka, Naoki
core   +1 more source

Application of differential evolution algorithm on self-potential data.

open access: yesPLoS ONE, 2012
Differential evolution (DE) is a population based evolutionary algorithm widely used for solving multidimensional global optimization problems over continuous spaces, and has been successfully used to solve several kinds of problems.
Xiangtao Li, Minghao Yin
doaj   +1 more source

Influence of magnetically constricted arc traverse speed (MCATS) on tensile properties and microstructural characteristics of welded Inconel 718 alloy sheets

open access: yesDefence Technology, 2021
The magnetically constricted arc technique was implemented to mitigate the heat input related metallurgical problems in Gas Tungsten Arc Welding (GTAW) of Inconel 718 alloy particularly Nb segregation and subsequent laves phase evolution in fusion zone ...
Tushar Sonar   +4 more
doaj   +1 more source

A Discrete Dynamical Model of Signed Partitions

open access: yesJournal of Applied Mathematics, 2013
We use a discrete dynamical model with three evolution rules in order to analyze the structure of a partially ordered set of signed integer partitions whose main properties are actually not known.
G. Chiaselotti   +3 more
doaj   +1 more source

Seismic pulse propagation with constant Q and stable probability distributions

open access: yesAnnals of Geophysics, 1997
The one-dimensional propagation of seismic waves with constant Q is shown to be governed by an evolution equation of fractional order in time, which interpolates the heat equation and the wave equation.
M. Tomirotti, F. Mainardi
doaj   +1 more source

The nature of culture : an eight-grade model for the evolution and expansion of cultural capacities in hominins and other animals [PDF]

open access: yes, 2015
Tracing the evolution of human culture through time is arguably one of the most controversial and complex scholarly endeavors, and a broad evolutionary analysis of how symbolic, linguistic, and cultural capacities emerged and developed in our species is ...
Collard, Mark   +22 more
core   +1 more source

Contractive adjustment in Mexico, 1982-1989

open access: yesPSL Quarterly Review, 2013
The work assesses the macroeconomic effects of the IMF’s contractive adjustment strategy in Mexico’s recent evolution, while raising some theoretical challenges to several of the underlying assumptions that have sustained the Mexican government’s recent ...
G. J. LÓPEZ
doaj   +1 more source

Differential Evolution with Estimation of Distribution for Worst-Case Scenario Optimization

open access: yesMathematics, 2021
Worst-case scenario optimization deals with the minimization of the maximum output in all scenarios of a problem, and it is usually formulated as a min-max problem.
Margarita Antoniou, Gregor Papa
doaj   +1 more source

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