Results 11 to 20 of about 1,107 (197)
IEEE Access, 2021 This contribution reports a comparative analysis of two methodologies for the periodic steady-state solution of linear and nonlinear electric networks in time-domain (TD), based on the state-space model (SSM) and companion-circuit analysis (CCA ...
Julio Cesar Godinez-Delgado +1 more
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Mathematical Modelling and Analysis, 2005 The practical realization of the morphologic analysis of radar subsurface as the processing of input digital data is presented here together with real data processing results. The analysis depends on a new numerical differentiation algorithm in frequency
A. Grakovski, A. Alexandrov
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IEEE Access, 2020 This contribution proposes an efficient methodology in time domain (TD) based on companion-circuit analysis (CCA) and a Newton method of extrapolation to the Limit Cycle (periodic steady state solution) based on a Numerical Differentiation (ND) process ...
Julio Cesar Godinez-Delgado +2 more
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Data smoothing with applications to edge detection
Open Mathematics, 2022 The aim of this paper is to present a new stable method for smoothing and differentiating noisy data defined on a bounded domain Ω⊂RN\Omega \subset {{\mathbb{R}}}^{N} with N≥1N\ge 1.
Al-Jamal Mohammad F. +2 more
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A Two-Stage Method for Parameter Identification of a Nonlinear System in a Microbial Batch Process
Applied Sciences, 2019 This paper deals with the parameter identification of a microbial batch process of glycerol to 1,3-propanediol (1,3-PD). We first present a parameter identification model for the excess kinetics of a microbial batch process of glycerol to 1,3-PD.
Gongxian Xu, Dongxue Lv, Wenxin Tan
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Multivariate numerical differentiation
Journal of Computational and Applied Mathematics, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Riachy, Samer +2 more
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An Adaptive Method for Numerical Differentiation of Difficult-to-Compute Functions [PDF]
Journal of Mechanical Engineering, 2021 An adaptive approach to the numerical differentiation of difficult-to-compute functions is considered. Complex dependencies, which are the result of multiple superpositions of functions or the product of various algorithmic processes, are knowingly ...
Helii A. Sheludko, Serhii V. Ugrimov
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Учёные записки Казанского университета: Серия Физико-математические науки, 2021 The article gives an estimate of the error of the classical formulas for the numerical differentiation of a function of one variable with large gradients in the exponential boundary layer.
N.A. Zadorin
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Технічна інженеріяThe article presents an assessment of the accuracy characteristics of the methods of numerical differentiation and integration used in a computerized device for measuring the parameters of the motion of objects.
Yu.O. Podchashynskyi, O.O. Luhovykh
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Interpolation on the Bakhvalov mesh in the presence of an exponential boundary layer
Учёные записки Казанского университета: Серия Физико-математические науки, 2019 Interpolation of the function of one variable with large gradients in the region of the exponential boundary layer was studied. The interpolated function corresponds to solution of a boundary value problem for an ordinary differential equation of the ...
I.A. Blatov, N.A. Zadorin
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