Results 81 to 90 of about 3,451,835 (375)
Fast Fourier Optimization: Sparsity Matters
, 2012 Many interesting and fundamentally practical optimization problems, ranging from optics, to signal processing, to radar and acoustics, involve constraints on the Fourier transform of a function. It is well-known that the {\em fast Fourier transform} (fft)
C. Papadimitriou +19 more
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Advanced Engineering Materials, EarlyView.This article describes the preparation and characterization of poly(ε‐caprolactone) electrospun composite fibers incorporating sol‐gel‐derived bioactive glass particles doped with B and Cu. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier‐transform infrared spectroscopy, contact angle, acellular bioactivity, mechanical and ...
Elisa Piatti +5 more
wiley +1 more source
Replica Fourier Transform: Properties and applications
Nuclear Physics B, 2015 The Replica Fourier Transform is the generalization of the discrete Fourier Transform to quantities defined on an ultrametric tree. It finds use in conjunction of the replica method used to study thermodynamics properties of disordered systems such as ...
A. Crisanti, C. De Dominicis
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Multi-dimensional real Fourier transform [PDF]
, 1971 Four subroutines compute one-dimensional and multi-dimensional Fourier transforms for real data, multi-dimensional complex Fourier transforms, and multi-dimensional sine, cosine and sine-cosine transforms.
Krogh, F. T.
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Macromolecular Materials and Engineering, 2002 Viscosity and the related dissipation of energy play an important role in many macroscopic and microscopic processes. As the amplitude of mechanical perturbations increases, non-linear effects become important and induces shear thinning or thickening (Malkin 1995).
openaire +2 more sources
The Fourier transform on valuations is the Fourier transform [PDF]
Journal of Functional Analysis, 2023 Dmitry Faifman, Thomas Wannerer
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.Mesoporous bioactive glass nanoparticles (MBGNs) are investigated for bone regeneration given their remarkable structural and functional properties. MBGNs are functionalized with Mn and Cu and incorporated with quercetin, a natural flavonoid exhibiting antioxidant, anti‐inflammatory, and antimicrobial properties.
Giovanni Lo Bello +5 more
wiley +1 more source
An ultra-precise Fast Fourier Transform
Measurement: SensorsThe Fast Fourier Transform (FFT) is a cornerstone of digital signal processing, generating a computationally efficient estimate of the frequency content of a time series.
Manus Henry
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Directional short-time Fourier transform of distributions
Journal of Inequalities and Applications, 2016 In this paper we consider the directional short-time Fourier transform (DSTFT) that was introduced and investigated in (Giv in J. Math. Anal. Appl. 399:100-107, 2013). We analyze the DSTFT and its transpose on test function spaces S ( R n ) $\mathcal {S}(
Katerina Hadzi-Velkova Saneva +1 more
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A General Geometric Fourier Transform
, 2013 The increasing demand for Fourier transforms on geometric algebras has resulted in a large variety. Here we introduce one single straight forward definition of a general geometric Fourier transform covering most versions in the literature.
B Jancewicz +10 more
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