Results 141 to 150 of about 4,234 (260)

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

Controllability and Observability Conditions for Impulsive DAEs on Time Scales

open access: yesAsian Journal of Control, EarlyView.
ABSTRACT This paper establishes criteria for controllability and observability in a class of linear time‐invariant impulsive differential‐algebraic equations (DAEs) defined on a time scale. Controllability is defined as the ability to transfer the system state from any initial condition to any desired state within a finite time interval using an ...
Awais Younus   +3 more
wiley   +1 more source

Maximal Dissipation and Well-Posedness of the Euler System of Gas Dynamics. [PDF]

open access: yesArch Ration Mech Anal
Feireisl E   +2 more
europepmc   +1 more source

Revisiting Variable Stars Toward the Globular Cluster NGC 6496 With ATLAS and Gaia Photometry

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT We revisit 13 variable stars in the field of the metal‐rich globular cluster NGC 6496, discovered by Abbas et al. (2015; Astronomical Journal 149:40) (hereafter referred to as “MA15”) via time‐series data, spanning 2 years. We improve upon the MA15 characterization of the variables using ATLAS time‐series photometry data, spanning 8 years, in ...
Madison E. Martin   +2 more
wiley   +1 more source

Unintegrated Gluon Distributions as Probability Densities for QCD Dynamical Entropy

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT We present a systematic procedure for constructing normalized transverse momentum probability distributions from phenomenological unintegrated gluon distributions (UGDs). These distributions provide the probabilistic foundation of the QCD dynamical entropy formalism and can be employed in the evaluation of other statistical observables.
G. S. Ramos, Magno V. T. Machado
wiley   +1 more source

RiTex: Harmonization of Radiomic Features Based on Riemannian Geometry. [PDF]

open access: yesJ Imaging
Voitenko DA   +5 more
europepmc   +1 more source

Adaptive Functioning, Sensory Processing, and Behavioral Problems in Autistic Children: The Moderating Role of Gender

open access: yesAutism Research, EarlyView.
ABSTRACT Children with autism spectrum disorder (ASD) frequently experience elevated emotional and behavioral difficulties, yet factors associated with variability remain incompletely understood. Adaptive functioning and sensory processing differences have been linked to behavioral problems, but little is known about whether associations differ between
Cory Shulman, Danielle Bitton, Zili Nir
wiley   +1 more source

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