Results 1 to 10 of about 5,969,672 (323)

Dual-Input Slope Seeking Control of Continuous Micro-Algae Cultures with Experimental Validation

open access: yesApplied Sciences, 2021
This paper investigates the application of adaptive slope-seeking strategies to dual-input single output dynamic processes. While the classical objective of extremum seeking control is to drive a process performance index to its optimum, this paper also ...
Christian Feudjio Letchindjio   +4 more
doaj   +1 more source

Parameter Estimation of Dynamic Beer Fermentation Models

open access: yesFoods, 2022
In this study, two dynamic models of beer fermentation are proposed, and their parameters are estimated using experimental data collected during several batch experiments initiated with different sugar concentrations. Biomass, sugar, ethanol, and vicinal
Jesús Miguel Zamudio Lara   +3 more
doaj   +1 more source

A Matlab Toolbox for Extended Dynamic Mode Decomposition Based on Orthogonal Polynomials and p-q Quasi-Norm Order Reduction

open access: yesMathematics, 2022
Extended Dynamic Mode Decomposition (EDMD) allows an approximation of the Koopman operator to be derived in the form of a truncated (finite dimensional) linear operator in a lifted space of (nonlinear) observable functions.
Camilo Garcia-Tenorio   +1 more
doaj   +1 more source

A Concise Review of State Estimation Techniques for Partial Differential Equation Systems

open access: yesMathematics, 2021
While state estimation techniques are routinely applied to systems represented by ordinary differential equation (ODE) models, it remains a challenging task to design an observer for a distributed parameter system described by partial differential ...
Ivan Francisco Yupanqui Tello   +2 more
doaj   +1 more source

Trigonometric Embeddings in Polynomial Extended Mode Decomposition—Experimental Application to an Inverted Pendulum

open access: yesMathematics, 2021
The extended dynamic mode decomposition algorithm is a tool for accurately approximating the point spectrum of the Koopman operator. This algorithm provides an approximate linear expansion of non-linear discrete-time systems, which can be useful for ...
Camilo Garcia-Tenorio   +3 more
doaj   +1 more source

Evaluation of the Regions of Attraction of Higher-Dimensional Hyperbolic Systems Using Extended Dynamic Mode Decomposition

open access: yesAutomation, 2023
This paper provides the theoretical foundation for the approximation of the regions of attraction in hyperbolic and polynomial systems based on the eigenfunctions deduced from the data-driven approximation of the Koopman operator.
Camilo Garcia-Tenorio   +3 more
doaj   +1 more source

Analysis of the ROA of an anaerobic digestion process via data-driven Koopman operator

open access: yesNonlinear Engineering, 2021
Nonlinear biochemical systems such as the anaerobic digestion process experience the problem of the multi-stability phenomena, and thus, the dynamic spectrum of the system has several undesired equilibrium states.
Garcia-Tenorio Camilo   +3 more
doaj   +1 more source

The cadastre of values and income: some considerations [PDF]

open access: yesTerritorio Italia, 2013
The article intends to verify the logical and methodological framework of a cadastre of values, based on the market prices, in addition to cadastre of incomes, as provided by the reform guidelines which have been discussed by some time in the Italian ...
Gianni Guerrieri
doaj   +1 more source

Data-Driven Predictive Control of Interconnected Systems Using the Koopman Operator

open access: yesActuators, 2022
Interconnected systems are widespread in modern technological systems. Designing a reliable control strategy requires modeling and analysis of the system, which can be a complicated, or even impossible, task in some cases.
Duvan Tellez-Castro   +4 more
doaj   +1 more source

An Agent-Based Crop Model Framework for Heterogeneous Soils

open access: yesAgronomy, 2021
Climate change and the efficient use of freshwater for irrigation pose a challenge for sustainable agriculture. Traditionally, the prediction of agricultural production is carried out through crop-growth models and historical records of the climatic ...
Jorge Lopez-Jimenez   +2 more
doaj   +1 more source

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