Results 41 to 50 of about 11,999,664 (286)
Radial numerical integrations based on the sinc function [PDF]
Computer Physics Communications, 2004 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Weber, Valéry +2 more
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ACTIVE CONTOUR MODEL USING FRACTIONAL SYNC WAVE FUNCTION FOR MEDICAL IMAGE SEGMENTATION
Asia-Pacific Journal of Information Technology and Multimedia, 2016 Intensity inhomogeneity occurs when pixels in medical images overlap due to anomalies in medical imaging devices. These anomalies lead to difficult medical image segmentation.
Norshaliza Kamaruddin
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A rational approximation of the sinc function based on sampling and the Fourier transforms [PDF]
Applied Numerical Mathematics, 2018 In our previous publications we have introduced the cosine product-to-sum identity [17] ∏ m = 1 M cos ( t 2 m ) = 1 2 M − 1 ∑ m = 1 2 M − 1 cos ( 2 m − 1 2 M t ) and applied it for sampling [1] , [2] as an incomplete cosine expansion of the sinc ...
S. Abrarov, B. Quine
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Adaptive piecewise Poly-Sinc methods for ordinary differential equations [PDF]
, 2023 We propose a new method of adaptive piecewise approximation based on Sinc points for ordinary differential equations. The adaptive method is a piecewise collocation method which utilizes Poly-Sinc interpolation to reach a preset level of accuracy for the
Youssef, Maha +3 more
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Sensors, 2022 A frequency spectrum segmentation methodology is proposed to extract the frequency response of circuits and systems with high resolution and low distortion over a wide frequency range.
Alejandro Roman-Loera +3 more
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Sampling by incomplete cosine expansion of the sinc function: Application to the Voigt/complex error function [PDF]
Applied Mathematics and Computation, 2014 A new sampling methodology based on an incomplete cosine expansion series is presented as an alternative to the traditional sinc function approach. Numerical integration shows that this methodology is efficient and practical.
S. Abrarov, B. Quine
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The Binomial Coefficient as an (In)finite Sum of Sinc Functions
The American Mathematical Monthly, 2022 This article was accepted for publication by the American Mathematical Monthly on 2021.04 ...
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A direct computation of a certain family of integrals [PDF]
Arab Journal of Mathematical Sciences, 2021 Purpose – The authors propose a rather elementary method to compute a family of integrals on the half line, involving positive powers of sin x and negative powers of x, depending on the integer parameters n≥q≥1.
Lorenzo Fornari +2 more
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Observation of waveguide Fabry-Perot lasing in highly efficient Si nanocrystals
Results in Physics, 2022 A luminescent Si nanocrystal (SiNC) thin film with photoluminescence quantum yield (PLQY) > 70% was made by using hydrogen silsesquioxane (HSQ), followed by long-time high-pressure hydrogenation.
Zhi-Yuan Yu +13 more
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Axioms, 2022 In the paper, the authors establish a general inequality for the hyperbolic functions, extend the newly-established inequality to trigonometric functions, obtain some new inequalities involving the inverse sine and inverse hyperbolic sine functions, and ...
Wen-Hui Li, Qi-Xia Shen, Bai-Ni Guo
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