Results 41 to 50 of about 11,742,568 (294)

Non-stationary heat exchange in cylindrical channel at laminar flow of fluids

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
Using double integral Laplace–Carson transformation and orthogonal method of Bubnov–Galyorkin, the analytical solution of the non-stationary problem of heat transfer in a cylindrical channel in the laminar flow of fluids was obtained. It has two components:
Anton V Eremin   +3 more
doaj   +1 more source

A simple method for a fourier analysis [PDF]

open access: yesPhysica, 1953
Synopsis A Fourier analysis has been made using only a phototension cell, an alternating current galvanometer and a rotating device.
Milatz, J.M.W.   +2 more
openaire   +3 more sources

A Pseudo-Spectral Fourier Collocation Method for Inhomogeneous Elliptical Inclusions with Partial Differential Equations

open access: yesMathematics, 2022
Inhomogeneous elliptical inclusions with partial differential equations have aroused appreciable concern in many disciplines. In this paper, a pseudo-spectral collocation method, based on Fourier basis functions, is proposed for the numerical solutions ...
Xiao Wang   +3 more
doaj   +1 more source

On Variational Fourier Particle Methods

open access: yesJournal of Scientific Computing
AbstractIn this article we describe a unifying framework for variational electromagnetic particle schemes of spectral type, and we propose a novel spectral Particle-In-Cell (PIC) scheme that preserves a discrete Hamiltonian structure. Our work is based on a new abstract variational derivation of particle schemes which builds on a de Rham complex where ...
Martin Campos Pinto   +3 more
openaire   +4 more sources

Solution of Lane-Emden Equation with Fourier Decomposition Method

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2022
In this article, we tried to get the solution of a class of Lane Emden type equations by using the Fourier Decomposition Method. This method is obtained by using the Fourier transform and the Adomian Decomposition method (FADM) together.
Murat Düz
doaj   +1 more source

Fourier Spectral Methods for Nonlocal Models [PDF]

open access: yesJournal of Peridynamics and Nonlocal Modeling, 2020
Efficient and accurate spectral solvers for nonlocal models in any spatial dimension are presented. The approach we pursue is based on the Fourier multipliers of nonlocal Laplace operators introduced in a previous work. It is demonstrated that the Fourier multipliers, and the eigenvalues in particular, can be computed accurately and efficiently.
Bacim Alali, Nathan Albin
openaire   +3 more sources

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Design And Implementation Of Radix-4 Fast Fourier Transform In Asia Chip With 0.18 M Standard CMOS Technology [TK5102.9. S624 2008 f rb]. [PDF]

open access: yes, 2008
Jelmaan Fourier pantas (FFT) merupakan blok yang penting dan digunakan secara meluas dalam algoritma pemprosesan isyarat digital. The Fast Fourier Transform (FFT) is a critical block and widely used in digital signal processing ...
Palaniappan, Siva Kumar
core   +1 more source

On a nonlinear inverse boundary value problem for linearized sixth-order Boussinesq equation with an additional integral condition

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2023
Background. A huge number of mathematical models are called Boussinesq equations; therefore, a wide range of sixth-order Boussinesq equations attracts a lot of attention from outside researchers around the world. Materials and methods.
Araz Salamulla Farajov
doaj   +1 more source

Topographic solitary waves by the shooting method and Fourier spectral method

open access: yesResults in Physics, 2020
The influences of topography on barotropic Rossby solitary waves are discussed in this paper. A Boussinesq model equation of nonlinear Rossby wave amplitude is derived by using the perturbation expansion method and the space–time transformation.
Jiaqi Zhang, Ruigang Zhang, Liangui Yang
doaj   +1 more source

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