Results 11 to 20 of about 273,195 (168)
Template Matching Using Improved Rotations Fourier Transform Method [PDF]
International Journal of Electronics and Telecommunications, 2022 Template matching is a process to identify and localize a template image on an original image. Several methods are commonly used for template matching, one of which uses the Fourier transform. This study proposes a modification of the method by adding an
Marvin Chandra Wijaya
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On the question of optimization of the oil slick biodestruction in the bodies of water
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2014 We propose the system of nonlinear partial differential equations of parabolic type that describes the processes of oil pollution of water surface and bacterial degradation of this contamination. Problem of the parametric optimization of the acceleration
Olga S Afanaseva +2 more
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Современная математика: Фундаментальные направления, 2023 In this paper, we solve the problem of an inhomogeneous one-dimensional fractional differential reaction-diffusion equation with variable coefficients (1.1)-(1.2) by the method of separation of variables (the Fourier method).
E. I. Mahmoud
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Method for Calculating Transients in a Gas Pipeline
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2021 Abstaract. An analytical solution of a system of partial differential equations describing the unsteady isothermal flow of real gases in gas pipelines is considered.
A. S. Fikov
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Mixed problem for the singular partial differential equation of parabolic type
Karpatsʹkì Matematičnì Publìkacìï, 2018 The scheme for solving of a mixed problem is proposed for a differential equation \[a(x)\frac{\partial T}{\partial \tau}= \frac{\partial}{\partial x} \left(c(x)\frac{\partial T}{\partial x}\right) -g(x)\, T\] with coefficients $a(x)$, $g(x)$ that are the
O.V. Makhnei
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Известия ТИНРО, 2016 Trend significance is evaluated and periodicities are revealed for time series of the sea surface temperature in the North-West Pacific. The dominant periods are selected using Fourier method under the assumption of linear trend existing over ...
Tatyana A. Shatilina +2 more
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Fourier method in the space of φB - distributions
Учёные записки Казанского университета: Серия Физико-математические науки, 2023 In our previous articles, we introduced and explored the notion of φB -distributions with values in the Banach space. This offers a new perspective on the theory of solvability of linear problems, which is important for solving partial differential ...
V. S. Mokeichev, A. M. Sidorov
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Физика волновых процессов и радиотехнические системы, 2019 On the basis of the idea of splitting the process into physical factors, using the Fourier method and the green function apparatus, an algorithm for constructing a new class of solutions to the initial boundary value problems of the theory of drying by ...
A.M. Afanasiev +2 more
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Mathematical Simulations of Deformation for the Rotation Shells with Variable Wall Thickness
Journal of Optimization, Differential Equations and Their Applications, 2021 Well-posed boundary value problems are constructed for calculating rotation shells of with a stiffness variable along the meridian in two directions, and also with variable bilateral with respect to the reference surface with the shell wall thickness ...
Aleksandr A. Dzyuba +3 more
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Rayleigh angle incident ultrasonic beam shape design influence on reflected beam
Acta Acustica, 2023 Current evolutions in transducer design, such as phased arrays, but more importantly, metamaterials-based acoustic lenses, potentially enable generating specific beam shapes earlier unconsidered.
Declercq Nico F.
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