Results 61 to 70 of about 71,359 (311)
Comparison of wavelet approximation order in different smoothness spaces
International Journal of Mathematics and Mathematical Sciences, 2006 In linear approximation by wavelet, we approximate a given function by a finite term from the wavelet series. The approximation order is improved if the order of smoothness of the given function is improved, discussed by Cohen (2003), DeVore (1998), and ...
M. R. Islam +2 more
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A Simple Approximation for Fast Nonlinear Deconvolution [PDF]
, 2011 When dealing with nonlinear blind deconvolution, complex mathematical estimations must be done giving as a result very slow algorithms. This is the case, for example, in speech processing or in microarray data analysis. In this paper we propose a simple method to reduce computational time for the inversion of Wiener systems by using a linear ...
Jordi Solé-Casals, Cesar F. Caiafa
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Nonlinear Approximation by Sums of Exponentials and Translates [PDF]
SIAM Journal on Scientific Computing, 2011 In this paper, we discuss the numerical solution of two nonlinear approximation problems. Many applications in electrical engineering, signal processing, and mathematical physics lead to the following problem. Let $h$ be a linear combination of exponentials with real frequencies.
Thomas Peter +2 more
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Advanced Engineering Materials, EarlyView.Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera +8 more
wiley +1 more source
The cell-average based neural network for numerical approximation of the nonlinear Schrödinger equation [PDF]
, 2023 Dielan Hu +3 more
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An Algorithm for Minimax Approximation in the Nonlinear Case [PDF]
The Computer Journal, 1969 are now well understood. In particular the equivalence of (i) with a linear programming problem permits its solution under very general conditions (see, for example, Kelley (1959), Stiefel (1960), Rice (1964), Osborne and Watson (1967, 1968)). In this paper, we consider the solution of the corresponding nonlinear minimax approximation problems, by ...
Michael R. Osborne, G. Alistair Watson
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Advanced Engineering Materials, EarlyView.Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov +4 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares +3 more
wiley +1 more source
Piecewise nonlinear approximation for non-smooth functions
Results in Applied MathematicsPiecewise affine or linear approximation has garnered significant attention as a technique for approximating piecewise-smooth functions. In this study, we propose a novel approach: piecewise non-linear approximation based on rational approximation, aimed
S. Akansha
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