Results 31 to 40 of about 12,036 (231)
Summary of sinc numerical methods
Journal of Computational and Applied Mathematics, 2000 This article attempts to summarize the existing numerical methods based on Sinc approximation. Starting with a comparison of polynomial and Sinc approximation, basic formulas for the latter in the one-dimensional case are given. The author also covers the following: (i) Explicit spaces of analytic functions for one dimensional Sinc approximation, (ii ...
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Flexible Nyquist Pulse Sequence Generation With Variable Bandwidth and Repetition Rate
IEEE Photonics Journal, 2014 The rectangular spectrum of sinc-shaped Nyquist pulses enables the encoding of data in a minimum spectral width. Sinc pulses can improve optical sampling devices, could enable the implementation of ideal rectangular microwave photonics filters, and can ...
Stefan Preusler +2 more
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Journal of Analytical Science and Technology, 2020 In magnetic resonance imaging, the fidelity of image reconstruction is an important criterion. It has been suggested that the infinite-extent sinc kernel is the ideal interpolation kernel for ensuring the reconstruction quality of non-Cartesian ...
Sangwoo Kim, Chulhyun Lee
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BIT Numerical Mathematics, 2017 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Numerical Algorithm Based on Haar-Sinc Collocation Method for Solving the Hyperbolic PDEs
The Scientific World Journal, 2014 The present study investigates the Haar-Sinc collocation method for the solution of the hyperbolic partial telegraph equations. The advantages of this technique are that not only is the convergence rate of Sinc approximation exponential but the ...
A. Pirkhedri +2 more
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Demonstrating Vibrational Current Generation With a Self‐Assembled Bioelectret
Advanced Functional Materials, EarlyView.Vacuum‐deposited films of the plant‐derived molecule, Baicalein, form a self‐assembled bioelectret exhibiting spontaneous orientation polarization and a giant surface potential. The films induce alternating current during the vibration of a movable electrode without charging treatments. Hydrocarbon protection enhances the air stability of the Baicalein
Kouki Akaike +7 more
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Journal of Computational and Applied Mathematics, 1997 The author gives a complete, although brief, summary of Sinc methods, with emphasis on the matrices that arise from these methods. He also presents a novel procedure, based on Sinc convolution, for solving a Poisson problem over a rectangular region.
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Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix
Advanced Materials, EarlyView.3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández +15 more
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Solving nonlinear boundary value problems by the Galerkin method with sinc functions
Open Physics, 2015 In this paper, the sinc-Galerkin method is used for numerically solving a class of nonlinear differential equations with boundary conditions. The importance of this study is that sinc approximation of the nonlinear term is stated as a new theorem.
Alkan Sertan, Secer Aydin
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Space‐Time Coding Conformal Metasurfaces for Multifrequency Beam Steering and Shaping
Advanced Materials, EarlyView.Space‐time coding conformal metasurfaces enable dynamic wave control on curved surfaces by combining programmable spatial patterns with temporal modulation. This study shows that a single conformal aperture can independently manipulate multiple frequency components, achieving multifunctional beam shaping and steering, with implications for ...
Filippo Pepe +8 more
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