Results 61 to 70 of about 5,260,799 (222)

Arbitrary Orthogonal Polarization Decomposition and Routing With Complex Amplitude Modulation via Wheel‐of‐Fortune‐Inspired Metasurfaces

open access: yesAdvanced Science, EarlyView.
This work demonstrates a receiver‐transmitter‐integrated metasurface that decomposes an incident wave into orthogonal components and routes them into separate channels. Inspired by a “Wheel‐of‐Fortune” mechanism, it enables independent control over the amplitude, phase, and polarization of the transmitted wave.
Tong Liu   +8 more
wiley   +1 more source

A Novel Learning Scheme for Chebyshev Functional Link Neural Networks

open access: yesAdvances in Artificial Neural Systems, 2011
A hybrid learning scheme (ePSO-BP) to train Chebyshev Functional Link Neural Network (CFLNN) for classification is presented. The proposed method is referred as hybrid CFLNN (HCFLNN).
Satchidananda Dehuri
semanticscholar   +1 more source

Operando X‐Ray Diffraction and Total Scattering Characterization of Battery Materials: Not Just a Pretty Picture

open access: yesAdvanced Energy Materials, EarlyView.
This review focuses on operando studies of battery materials by X‐ray diffraction (XRD) and total X‐ray scattering (TXS). This work highlights potential pitfalls and identify best‐practices for operando studies and reviews some unusual experiments to illustrate how these methods can be applied beyond the evaluation of the early‐stage cycling mechanisms
Amalie Skurtveit   +5 more
wiley   +1 more source

Certain Chebyshev Type Integral Inequalities Involving Hadamard’s Fractional Operators

open access: yesAbstract and Applied Analysis, 2014
We establish certain new fractional integral inequalities for the differentiable functions whose derivatives belong to the space Lp([1,∞)), related to the weighted version of the Chebyshev functional, involving Hadamard’s fractional integral operators ...
Sotiris K. Ntouyas   +2 more
doaj   +1 more source

A mean value theorem for the Chebyshev functional

open access: yes, 2015
In the present paper we present a mean value theorem for the Chebyshev functional based on divided differences. This theorem is then used to obtain a new Chebyshev-Grüss type inequality. Mathematics subject classification (2010): 26D10, 46N30.
B. Gavrea
semanticscholar   +1 more source

Chebyshev Type Integral Inequalities Involving the Fractional Hypergeometric Operators

open access: yesAbstract and Applied Analysis, 2014
By making use of the fractional hypergeometric operators, we establish certain new fractional integral inequalities for synchronous functions which are related to the weighted version of the Chebyshev functional. Some consequent results and special cases
D. Baleanu, S. D. Purohit
doaj   +1 more source

On the weighted fractional Pólya–Szegö and Chebyshev-types integral inequalities concerning another function

open access: yesAdvances in Difference Equations, 2020
The primary objective of this present paper is to establish certain new weighted fractional Pólya–Szegö and Chebyshev type integral inequalities by employing the generalized weighted fractional integral involving another function Ψ in the kernel.
Kottakkaran Sooppy Nisar   +4 more
doaj   +1 more source

Lyapunov exponent and natural invariant density determination of chaotic maps: An iterative maximum entropy ansatz

open access: yes, 2009
We apply the maximum entropy principle to construct the natural invariant density and Lyapunov exponent of one-dimensional chaotic maps. Using a novel function reconstruction technique that is based on the solution of Hausdorff moment problem via ...
Akheizer N I   +12 more
core   +1 more source

Retinal Vessel Segmentation: A Comprehensive Review From Classical Methods to Deep Learning Advances (1982–2025)

open access: yesAdvanced Intelligent Systems, EarlyView.
Four decades of retinal vessel segmentation research (1982–2025) are synthesized, spanning classical image processing, machine learning, and deep learning paradigms. A meta‐analysis of 428 studies establishes a unified taxonomy and highlights performance trends, generalization capabilities, and clinical relevance.
Avinash Bansal   +6 more
wiley   +1 more source

Self‐Similar Blowup for the Cubic Schrödinger Equation

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We give a rigorous proof for the existence of a finite‐energy, self‐similar solution to the focusing cubic Schrödinger equation in three spatial dimensions. The proof is computer‐assisted and relies on a fixed point argument that shows the existence of a solution in the vicinity of a numerically constructed approximation.
Roland Donninger, Birgit Schörkhuber
wiley   +1 more source

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