Results 91 to 100 of about 528,162 (309)

Modeling and parameter estimation for fractional large‐scale interconnected Hammerstein systems

open access: yesAsian Journal of Control, EarlyView.
Abstract This paper addresses the challenge of modeling and identifying large‐scale interconnected systems exhibiting memory effects, hereditary properties, and non‐local interactions. We propose a fractional‐order extension of the Hammerstein architecture that incorporates Grünwald–Letnikov operators to capture complex dynamics through multiple ...
Mourad Elloumi   +2 more
wiley   +1 more source

Performance improvement of discrete‐time linear‐quadratic regulators applied to uncertain linear systems using the Tikhonov regularization method

open access: yesAsian Journal of Control, EarlyView.
Abstract The linear‐quadratic regulator (LQR) problem of optimal control of an uncertain discrete‐time linear system (DTLS) is revisited in this paper from the perspective of Tikhonov regularization. We show that an optimally chosen regularization parameter reduces, compared to the classical LQR, the values of a scalar error function, as well as the ...
Fernando Pazos, Amit Bhaya
wiley   +1 more source

A class of uncertain variational inequality problems

open access: yes, 2015
In this paper, we propose a new class of variational inequality problems, say, uncertain variational inequality problems based on uncertainty theory in finite Euclidean spaces Rn$R^{n}$.
Qiqiong Chen, Yuanguo Zhu
semanticscholar   +1 more source

A Hybrid Extragradient Viscosity Approximation Method for Solving Equilibrium Problems and Fixed Point Problems of Infinitely Many Nonexpansive Mappings

open access: yesFixed Point Theory and Applications, 2009
We introduce a new hybrid extragradient viscosity approximation method for finding the common element of the set of equilibrium problems, the set of solutions of fixed points of an infinitely many nonexpansive mappings, and the set of solutions of the ...
Chaichana Jaiboon, Poom Kumam
doaj   +1 more source

Activism as education in and through the youth climate justice movement

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Young people worldwide are increasingly participating in a global movement for climate justice, yet to date, little research has examined how youth climate justice activists conceive of and experience activism as education. The present study used in‐depth, semi‐structured interviews with 16 US climate justice activists (aged 15–17) to address ...
Carlie D. Trott
wiley   +1 more source

‘Let's talk about the weather’: The activist curriculum and global climate change education

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Activist movements have garnered significant global attention on a range of sustainability issues, often involving collectives of citizens coming together. Invoked is the idea of citizens informed to act, emerging not from a common‐sense understanding of everyday life, but rather from a deep political understanding of the world—one that is ...
Richard Pountney
wiley   +1 more source

International student agency in academic self‐formation: Mobility as agency situated within knowledge structures

open access: yesBritish Educational Research Journal, EarlyView.
Abstract With growing attention to student agency in academic and policy discourse, international education has become a prominent context for examining how students navigate new cultural, academic, linguistic and social environments. However, much of this discussion attributes student agency to the ‘international’ aspect, while overlooking the ...
Soyoung Lee
wiley   +1 more source

How can welfare regime and production regime theories explain differences in schools’ ability grouping policies? A comparative study using the PISA school survey

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Research evidence is mixed on the consequences of ability grouping policies, but most research has found an overrepresentation of disadvantaged social demographics in low‐ability groups. However, researchers have neglected to explain why ability grouping policies vary between countries.
Monica Reichenberg   +2 more
wiley   +1 more source

Convergence Results for History-Dependent Variational Inequalities

open access: yesAxioms
We consider a history-dependent variational inequality in a real Hilbert space, for which we recall an existence and uniqueness result. We associate this inequality with a gap function, together with two additional problems: a nonlinear equation and a ...
Mircea Sofonea, Domingo A. Tarzia
doaj   +1 more source

The professionalisation of teachers in France at a time of new reform: A comparative perspective of teacher‐trainers and students in pre‐service training

open access: yesBritish Educational Research Journal, EarlyView.
Abstract The latest reform of initial teacher education (ITE) in France, introduced in 2021, aims to make teacher training less theoretical and therefore more ‘practical’. New elements, such as the replacement of the Écoles Supérieures pour le Professorat et l'Éducation (ÉSPÉs) by the Instituts Nationaux Supérieurs du Professorat et de l'Education ...
Eric Maleyrot, Thérèse Perez‐Roux
wiley   +1 more source

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