Results 71 to 80 of about 17,052 (308)
AxiomsThis paper presents an innovative numerical technique for specific classes of stochastic heat equations. Our approach uniquely combines a sixth-order compact finite difference algorithm with fast discrete Fourier transforms.
Ahmed G. Khattab +3 more
doaj +1 more source
Transformada rápida de Fourier-FFT, métodos de aceleração: estudo de sinais ionosféricos através da análise de Fourier e aplicação no grupo de radiociências de Gaspar [PDF]
, 1983 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.
Rauen, Antônio de Souza
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Spreadsheet Demonstrations of Discrete and Fast Fourier Transforms
, 1993 Spreadsheet demonstration of discrete and fast Fourier transforms The creation of discrete and fast Fourier transforms on a spreadsheet is a simple and informative exercise which graphically illustrates the simplicity and symmetries of the FFT ...
David Chapman
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Advanced Functional Materials, EarlyView.Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand +13 more
wiley +1 more source
Local affine image matching and synthesis based on structural patterns [PDF]
, 2010 A general purpose block-to-block affine transformation estimator is described. The estimator is based on Fourier slice analysis and Fourier spectral alignment.
Park, Heechan +2 more
core +1 more source
Advanced Functional Materials, EarlyView.A bikitaite‐infused cellulose separator is introduced for Li metal batteries, leveraging bikitaite zeolite's ion‐conductive properties to regulate Li+‐ion flux and suppress dendrite growth. The membrane design ensures uniform Li plating, enhanced electrolyte wettability, and robust thermal/mechanical stability, delivering stable performance and low ...
Isheunesu Phiri +2 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
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Semianalytical description of the modulator section of the coherent electron cooling
Physical Review Special Topics. Accelerators and Beams, 2013 In the coherent electron cooling, the modern hadron beam cooling technique, each hadron receives an individual kick from the electric field of the amplified electron density perturbation created in the modulator by this hadron in a copropagating electron
Andrey Elizarov, Vladimir Litvinenko
doaj +1 more source
Perancangan Perangkat Lunak Sistem Berbasis Aturan untuk Analisis Vibrasi Mesin Rotasi
Teknologi dan Kejuruan, 2009 Masalah mekanis pada mesin rotasi dapat diagnosis melalui analisis vibrasi yang terjadi pada saat mesin sedang beroperasi. Artikel ini mengajukan rancangan perangkat lunak sistem berbasis aturan (rule based system) untuk menganalisis vibrasi yang ...
Riyanarto Sarno
doaj +1 more source
Computing the fast Fourier transform on SIMD microprocessors
, 2012 This thesis describes how to compute the fast Fourier transform (FFT) of a power-of-two length signal on single-instruction, multiple-data (SIMD) microprocessors faster than or very close to the speed of state of the art libraries such as FFTW (“Fastest ...
Blake, Anthony Martin
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