Results 101 to 110 of about 744,050 (371)
A New Viewpoint to the Discrete Approximation: Discrete Yang-Fourier Transforms of Discrete-time Fractal Signal [PDF]
arXiv, 2011 It is suggest that a new fractal model for the Yang-Fourier transforms of discrete approximation based on local fractional calculus and the Discrete Yang-Fourier transforms are investigated in detail.
arxiv
Holomorphic fractional Fourier transforms
, 2019 The Fractional Fourier Transform (FrFT) has widespread applications in areas like signal analysis, Fourier optics, diffraction theory, etc. The Holomorphic Fractional Fourier Transform (HFrFT) proposed in the present paper may be used in the same wide range of applications with improved properties.
Kirwin, William D. +3 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.Faradaic charging with bromine redox chemistry shows promise for energy storage, yet its efficient use in aqueous electrolytes is hindered by water decomposition and polybromides' cross‐diffusion, leading to suboptimal cell performance. This study introduces a tetrabutylammonium bromide‐based hydrated deep eutectic electrolyte with optimized water ...
Tae Pyeong Eom +4 more
wiley +1 more source
Accelerating the calibration of stochastic volatility models [PDF]
This paper compares the performance of three methods for pricing vanilla options in models with known characteristic function: (1) Direct integration, (2) Fast Fourier Transform (FFT), (3) Fractional FFT. The most important application of this comparison
Kilin, Fiodar
core +4 more sources
Advanced Functional Materials, EarlyView.This study demonstrates the use of a low‐cost 3D printing technique to prepare a large‐area PVDF‐FAPbI3 composite dielectric film for flexible TENG application. The δ→α phase transformation of the FAPbI3 nanofillers has significantly improved the β‐phase content, morphology, and dielectric properties of the PVDF film.
Nurfatin Hafizah Zain Karimy +7 more
wiley +1 more source
A sampling theorem on shift-invariant spaces associated with the fractional Fourier transform domain [PDF]
arXiv, 2013 As a generalization of the Fourier transform, the fractional Fourier transform was introduced and has been further investigated both in theory and in applications of signal processing. We obtain a sampling theorem on shift-invariant spaces associated with the fractional Fourier transform domain.
arxiv
XFT: An Extension of the Discrete Fractional Fourier Transform [PDF]
arXiv, 2009 In recent years there has been a growing interest in the fractional Fourier transform driven by its large number of applications. The literature in this field follows two main routes. On the one hand, the areas where the ordinary Fourier transform has been applied are being revisited to use this intermediate time-frequency representation of signals ...
arxiv
Вплив похибки інтерполяції степеневих спектрів з нецілими показниками степеня на точність чисельного обчислення інтегрального перетворення Фур’є [PDF]
, 2016 Effect of an interpolation error on numerical calculation of integral Fourier transform of fractional power spectra has been analyzed. For appreciation of accuracy interval it is proposed to calculate of Fourier integral for two interpolation ...
Флюнт, Орест Євгенович
core
3D Nano‐architected Polymer Shell Enables Reconfigurable Stabilized Blue Phase Soft Crystals
Advanced Functional Materials, EarlyView.Spherical polymer shells featuring nanostructure of blue phase (BP) disclinations form via in situ photo‐polymerization within BP liquid crystals, providing controlled anchoring for BP nucleation and growth at room temperature and beyond. This architected confinement enhances BP thermal stability over a broad temperature range while enabling dynamic ...
Sepideh Norouzi +8 more
wiley +1 more source
Abelian and Tauberian results for the fractional Fourier cosine (sine) transform
AIMS MathematicsIn this paper, we presented Tauberian type results that intricately link the quasi-asymptotic behavior of both even and odd distributions to the corresponding asymptotic properties of their fractional Fourier cosine and sine transforms.
Snježana Maksimović +4 more
doaj +1 more source