Results 41 to 50 of about 935 (177)
Trigonometric Polynomial Interpolation of Images [PDF]
Image Processing On Line, 2019 For 1D and 2D signals, the Shannon-Whittaker interpolation with periodic extension can be formulated as a trigonometric polynomial interpolation (TPI). In this work, we describe and discuss the theory of TPI of images and some of its applications. First, the trigonometric polynomial interpolators of an image are characterized and it is shown that there
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Energy Science &Engineering, EarlyView.With a mass flow rate of 0.3 kg/min, a direct solar radiation of 770.25 W/m2, and a global solar radiation of 915.25 W/m2, the maximum outlet water temperature was 63.3°C, the maximum instantaneous efficiency was 51.78%, and the average heat gain was found between 69.81 and 206.88 W, depending on mass flow rate and direct solar radiation.
Md. Akib Ul Islam +5 more
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Advances in Difference Equations, 2017 In this paper, we propose an efficient numerical scheme for the approximate solution of a time fractional diffusion-wave equation with reaction term based on cubic trigonometric basis functions. The time fractional derivative is approximated by the usual
Muhammad Yaseen +3 more
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On trigonometric and paratrigonometric Hermite interpolation
Journal of Approximation Theory, 2004 Let \(H_n^T \) denote the class of all trigonometric polynomials of degree not greater than \(n\) and \(H_n^T (\alpha )\) the family of all trigonometric polynomials of the form \[ a_n \sin \,\left( {nt + \alpha } \right) + T_{n - 1} \left( t \right),\quad T_{n - 1} \in H_{n - 1}^T ,\quad 0 \leq \alpha < \pi ,\;n > 1.
Jinyuan Du, Huili Han, Guoxiang Jin
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Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.Abstract Purpose To compare the planning precision of three wedge height planning methods relative to angular‐based reference planning for infratubercle anterior closing wedge high tibial osteotomy (ACW‐HTO). Methods Lateral knee radiographs of patients with posterior tibial slope (PTS) ≥ 13° were retrospectively reviewed.
Romed Peter Vieider +8 more
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Cubic trigonometric spline functions of interpolation and applications
Journal of Numerical Analysis and Approximation Theory, 1999 Not available.
Ion Ichim, Grigore Albeanu
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Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT We develop a unified mathematical framework extending classical moment theory from discrete integer orders to a continuous spectrum of real orders f>0$$ f>0 $$, providing a systematic statistical characterization of complex systems exhibiting power‐law behavior.
Farrukh A. Chishtie
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Bivariate postprocessing of wind vectors
Quarterly Journal of the Royal Meteorological Society, EarlyView.We introduce three novel bivariate postprocessing approaches and analyze their performance for joint postprocessing of bivariate wind‐vector components in Germany. Bivariate vine‐copula‐based models, a bivariate gradient‐boosted version of ensemble model output statistics (EMOS), and a bivariate distributional regression network (DRN) are compared with
Ferdinand Buchner +3 more
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Uncovering hidden bias in neutron diffraction residual strain measurements
Journal of Applied Crystallography, EarlyView.This work demonstrates that diffraction‐based residual strain calculations and uncertainty estimates depend on how grain populations are sub‐sampled, with important implications for interpreting residual stresses in heterogeneous materials with fine‐scale microstructure and strain gradients.When calculating residual strain via neutron or X‐ray ...
Cole Franz +4 more
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Stability properties of trigonometric interpolating operators
Mathematische Zeitschrift, 1973 Consider the space C of all 2π-periodic continuous real functions, and the subspace π of all n-th order trigonometric polynomials. The index n is held fixed, and the spaces are endowed with the usual supremum norm. Any operator L: C → π which can be written in the form \( Lx = \sum\limits_1^m {x({s_k}){y_k}} \) with 0 ≤ sk < 2≤ and yk e π is said to be
Morris, Peter D., Cheney, Elliott W.
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