Results 11 to 20 of about 53,984 (288)

Versatile Tool for Parametric Smooth Turbomachinery Blades

open access: yesAerospace, 2022
Designing blades for efficient energy transfer by turning the flow and angular momentum change is both an art and iterative multidisciplinary engineering process.
Kiran Siddappaji, Mark G. Turner
doaj   +1 more source

On mathematical modelling of the solid-liquid mixtures transport in porous axial-symmetrical container with Henry and Langmuir sorption kinetics

open access: yesMathematical Modelling and Analysis, 2018
In this paper we study diffusion and convection filtration problem of one substance through the pores of a porous material which may absorb and immobilize some of the diffusing substances.
Ilmars Kangro, Harijs Kalis
doaj   +1 more source

On the Approximated Solution of a Special Type of Nonlinear Third-Order Matrix Ordinary Differential Problem

open access: yesMathematics, 2021
Matrix differential equations are at the heart of many science and engineering problems. In this paper, a procedure based on higher-order matrix splines is proposed to provide the approximated numerical solution of special nonlinear third-order matrix ...
Emilio Defez   +4 more
doaj   +1 more source

Special Spline Approximation in CAD Systems of Linear Structure Routing [PDF]

open access: yesMathematics and Statistics, 2019
This article deals with the problem of approximation of plane curves defined by a sequence of points by a spline of a given type. This task arises when developing methods for computer-aided design of linear structures: railways and roads, trenches for laying pipelines, canals, etc.
D. A. Karpov, V. I. Struchenkov
openaire   +1 more source

Special Splines of Hyperbolic Type for the Solutions of Heat and Mass Transfer 3-D Problems in Porous Multi-Layered Axial Symmetry Domain

open access: yesMathematical Modelling and Analysis, 2017
In this paper we study the problem of the diffusion of one substance through the pores of a porous multi layered material which may absorb and immobilize some of the diffusing substances with the evolution or absorption of heat. As an example we consider
Harijs Kalis   +3 more
doaj   +1 more source

Construction of a family of non-stationary biorthogonal wavelets

open access: yesJournal of Inequalities and Applications, 2019
The family of exponential pseudo-splines is the non-stationary counterpart of the pseudo-splines and includes the exponential B-spline functions as special members.
Baoxing Zhang   +3 more
doaj   +1 more source

Spline Smoothing: A Special Case of Diffusion Smoothing [PDF]

open access: yesProcedings of the Alvey Vision Conference 1989, 1989
Diffusion Smoothing (DS) implements the smoothing by directly solving a boundary value problem of the diffusion equation — = b V2u with explicit or implicit numerical schemes, it provides a uniform theoretical base for some other smoothing methods. It has shown that the elegant Gaussian smoothing (GS) is equivalent to the initial value problem of DS ...
openaire   +1 more source

Diffeomorphism Spline

open access: yesAxioms, 2015
Conventional splines offer powerful means for modeling surfaces and volumes in three-dimensional Euclidean space. A one-dimensional quaternion spline has been applied for animation purpose, where the splines are defined to model a one-dimensional ...
Wei Zeng   +2 more
doaj   +1 more source

Mathematical approximator based on basic spline approximation [PDF]

open access: yesE3S Web of Conferences
The article considers the problem of constructing a mathematical piecewise linear approximator based on approximation by basis splines. An algorithm has been developed designed to implement a class of special functions and create parallel ...
Turdimatov Mamirjon   +5 more
doaj   +1 more source

Application of new quintic polynomial B-spline approximation for numerical investigation of Kuramoto–Sivashinsky equation

open access: yesAdvances in Difference Equations, 2020
A spline is a piecewise defined special function that is usually comprised of polynomials of a certain degree. These polynomials are supposed to generate a smooth curve by connecting at given data points.
Muhammad Kashif Iqbal   +3 more
doaj   +1 more source

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