Results 91 to 100 of about 4,491 (232)
On the restricted Chebyshev–Boubaker polynomials [PDF]
Integral Transforms and Special Functions, 2017 17 pages.
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ChemistrySelect, Volume 10, Issue 37, October 6, 2025.Converting CO2 into synthetic fuels is a sustainable route to mitigate climate change. We developed Ni/CeO2 catalysts via sonochemical co‐precipitation with tunable oxygen vacancies. Higher defect densities enhanced CO2 methanation and CH4 selectivity via the formate pathway, as revealed by operando Raman, XPS, and H2‐TPR analyses.
Marcela A. Lucas +2 more
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The Entropy of Chebyshev Polynomials [PDF]
Transactions of the American Mathematical Society, 1966 R. L. Adler, M. H. McAndrew
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Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.Abstract Depletion‐induced fault slip and seismicity in the Groningen natural gas field are known to be caused by compaction of reservoir rock, most likely at locations in faults where reservoir rock juxtaposes non‐reservoir rock leading to severely‐peaked shear stresses at the reservoir‐fault corners.
J. D. Jansen, B. J. Meulenbroek
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Boundary Value ProblemsThis paper presents two operational matrices. The first one represents integer-order derivatives of the modified shifted Chebyshev polynomials of the second kind.
M. Abdelhakem +3 more
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Fast algorithm and new potential formula represented by Chebyshev polynomials for an [Formula: see text] globe network. [PDF]
Sci Rep, 2022 Zhou Y, Zheng Y, Jiang X, Jiang Z.
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Chebyshev approximation by γ-polynomials
Journal of Approximation Theory, 1973 The approximation by sums of exponentials shares some of the properties of rational approximation. But there is an essential difference: the best approximation is not always unique. There may be more than one isolated solution, which means that phenomena arise which are not met in the linear theory.
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A reference material for X‐ray diffraction line profile analysis
Journal of Applied Crystallography, Volume 58, Issue 5, Page 1764-1777, October 2025.A nanocrystalline Fe–1.8%Cr steel powder is proposed as a reference material for testing different powder diffraction instruments and configurations, as well as different data‐analysis methodologies.A nanocrystalline Fe–1.8%Cr steel powder was tested as a reference material on more than five powder diffraction instruments and configurations, as well as
P. Scardi +5 more
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Optimization via Chebyshev polynomials [PDF]
Journal of Applied Mathematics and Computing, 2017 This paper presents for the first time a robust exact line-search method based on a full pseudospectral (PS) numerical scheme employing orthogonal polynomials. The proposed method takes on an adaptive search procedure and combines the superior accuracy of Chebyshev PS approximations with the high-order approximations obtained through Chebyshev PS ...
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Ain Shams Engineering Journal, 2018 In this paper, we present a numerical method proficient for solving a system of time–fractional partial differential equations. For this sake, we use spectral collection method based on shifted Chebyshev polynomials in space and finite difference method ...
Basim Albuohimad +2 more
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