Results 91 to 100 of about 3,894 (258)

On the asymptotic hyperstability of switched systems

open access: yes, 2013
Asymptotic hyperstability is achievable under certain switching laws if at least one of the feed-forward parameterization: 1) possesses a strictly positive real transfer function, 2) a minimum residence time interval is respected for each activation time interval of such a parameterization, and 3) a maximum allowable residence time interval is ...
De la Sen, M.   +2 more
openaire   +2 more sources

On Hyper‐Stability Theory Based Multivariable Nonlinear Adaptive Control: Experimental Validation on Induction Motors

open access: yesIET Electric Power Applications, Volume 19, Issue 1, January/December 2025.
This paper introduces a Hyperstable Model Reference Adaptive Controller (H‐MRAC) for induction motor drives, leveraging hyper‐stability principles, Popov's stability criterion, and Landau's propositions for robust adaptation. By explicitly accounting for system nonlinearities, it achieves a stable speed and flux regulation under both internal and ...
Belkacem Bekhiti   +3 more
wiley   +1 more source

49, XXXYY: Parental Origin, Occurrence, and Clinical Phenotypes

open access: yesGenetics Research , Volume 2025, Issue 1, 2025.
49, XXXYY is a rare form of sex chromosomal aneuploidy that has been reported in 11 cases worldwide. The parental origin of the extra sex chromosomes and the specific clinical features of this condition remain unclear. We recruited a case with 49, XXXYY and performed genome‐wide copy number variation analysis using next‐generation sequencing.
Yufang Du   +11 more
wiley   +1 more source

Hyers–Ulam–Rassias stability of fractional delay differential equations with Caputo derivative

open access: yesMathematical Methods in the Applied Sciences, Volume 47, Issue 18, Page 13499-13509, December 2024.
This paper is devoted to the study of Hyers–Ulam–Rassias (HUR) stability of a nonlinear Caputo fractional delay differential equation (CFrDDE) with multiple variable time delays. We obtain two new theorems with regard to HUR stability of the CFrDDE on bounded and unbounded intervals. The method of the proofs is based on the fixed point approach.
Chaimaa Benzarouala, Cemil Tunç
wiley   +1 more source

Оценка эффективности функционирования виртуального производственного предприятия с использованием понятия гиперустойчивости [PDF]

open access: yes, 2016
The concept of hyperstability of the cybernetic system is considered in an appendix to the task of estimation of efficiency of virtual productive enterprise functioning.
Собчак, Андрей Павлович   +1 more
core   +1 more source

A compensation method for PMSM sensorless control with parameter identification considering SMO observation error

open access: yesIET Electric Power Applications, Volume 18, Issue 12, Page 1730-1739, December 2024.
When using model reference adaptive systems‐based parameter identification methods for sliding mode observer‐based sensorless control of permanent magnet synchronous motor, it is usually need to assumed that the rotor position estimation error is zero, but this error cannot be ignored in reality.
Ruizhi Guan   +4 more
wiley   +1 more source

A survey of adaptive control technology in robotics [PDF]

open access: yes
Previous work on the adaptive control of robotic systems is reviewed. Although the field is relatively new and does not yet represent a mature discipline, considerable attention has been given to the design of sophisticated robot controllers.
Tesar, D., Tosunoglu, S.
core   +1 more source

On hyperstability of Cauchy functional equation in (2, γ )-Banach spaces

open access: yes, 2020
In this paper, we generalize the recent hyperstability results obtained by Brzd ↪ ek and concerning the Cauchy functional equation f(x1 + x2) = f(x1) + f(x2). The obtained results are in (2,γ)-Banach spaces.
El-sayed El-hady
semanticscholar   +1 more source

Hyperstability of the Fréchet Equation and a Characterization of Inner Product Spaces

open access: yesJournal of Function Spaces and Applications, 2013
We prove some stability and hyperstability results for the well-known Fréchet equation stemming from one of the characterizations of the inner product spaces. As the main tool, we use a fixed point theorem for the function spaces.
Anna Bahyrycz   +3 more
doaj   +1 more source

Iterative Nonlinear Control of a Semibatch Reactor. Stability Analysis [PDF]

open access: yes, 2005
This paper presents the application of Iterative Nonlinear Model Predictive Control, INMPC, to a semibatch chemical reactor. The proposed control approach is derived from a model-based predictive control formulation which takes advantage of the ...
Bordons Alba, Carlos, Ramos Cueli, José
core  

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