Results 21 to 30 of about 5,294,575 (342)

An optimal system of group-invariant solutions and conserved quantities of a nonlinear fifth-order integrable equation

open access: yesOpen Physics, 2020
In this work, we perform Lie group analysis on a fifth-order integrable nonlinear partial differential equation, which was recently introduced in the literature and contains two dispersive terms.
Simbanefayi Innocent   +1 more
doaj   +1 more source

Dynamics of Vacancy Formation and Distribution in Semiconductor Heterostructures: Effect of Thermally Generated Intrinsic Electrons

open access: yesNanomaterials, 2023
The effect of thermally generated equilibrium carrier distribution on the vacancy generation, recombination, and mobility in a semiconductor heterostructure with an undoped quantum well is studied.
Timur S. Shamirzaev   +3 more
doaj   +1 more source

Optimal Taxation and Optimal Tax Systems [PDF]

open access: yesJournal of Economic Perspectives, 1990
In its current state, optimal tax theory is incomplete as a guide to action for critical issues in tax policy. It is incomplete because it has not yet come to terms with taxation as a system of coercively collecting revenues from individuals who will tend to resist.
openaire   +1 more source

Optimal predictive control of water transport systems: Arrêt-Darré/Arros case study [PDF]

open access: yes, 2009
This paper proposes the use of predictive optimal control as a suitable methodology to manage efficiently transport water networks. The predictive optimal controller is implemented using MPC control techniques.
Ayesa, Eduardo   +11 more
core   +4 more sources

The ascending arousal system promotes optimal performance through mesoscale network integration in a visuospatial attentional task

open access: yesNetwork Neuroscience, 2021
Previous research has shown that the autonomic nervous system provides essential constraints over ongoing cognitive function. However, there is currently a relative lack of direct empirical evidence for how this interaction manifests in the brain at the ...
Gabriel Wainstein   +10 more
doaj   +1 more source

Optimal renormalization of multiscale systems [PDF]

open access: yesProceedings of the National Academy of Sciences, 2021
Significance Many systems involve more variables than can be reasonably simulated. Even when only some of these variables are of interest, they usually depend strongly on the other variables. Reduced order models of the relevant variables, which behave as those variables would in a full simulation, are of great interest.
Jacob Price   +3 more
openaire   +3 more sources

Optimality in neuromuscular systems [PDF]

open access: yes2010 Annual International Conference of the IEEE Engineering in Medicine and Biology, 2010
We provide an overview of optimal control methods to nonlinear neuromuscular systems and discuss their limitations. Moreover we extend current optimal control methods to their application to neuromuscular models with realistically numerous musculotendons; as most prior work is limited to torque-driven systems. Recent work on computational motor control
Evangelos, Theodorou   +1 more
openaire   +2 more sources

Analysis and optimal boundary control of a nonstandard system of phase field equations [PDF]

open access: yes, 2012
We investigate a nonstandard phase field model of Cahn-Hilliard type. The model describes two-species phase segregation and consists of a system of two highly nonlinearly coupled PDEs.
Colli, Pierluigi   +2 more
core   +3 more sources

Optimization meets systems biology [PDF]

open access: yesBMC Systems Biology, 2010
A report of the 3rd International Symposium on Optimization and Systems Biology, 20-22 September 2009, Zhangjiajie, China.
Wang, Yong   +2 more
openaire   +2 more sources

Lie symmetry analysis, Lie-Bäcklund symmetries, explicit solutions, and conservation laws of Drinfeld-Sokolov-Wilson system

open access: yesBoundary Value Problems, 2017
The symmetry analysis method is used to study the Drinfeld-Sokolov-Wilson system. The Lie point symmetries of this system are obtained. An optimal system of one-dimensional subalgebras is derived by using Ibragimov’s method.
Yufeng Zhang, Zhonglong Zhao
doaj   +1 more source

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