Results 21 to 30 of about 515,471 (330)

Structure of the analytical physical theories

Revista Brasileira de Ensino de Física, 2021
We present an analysis of the first analytical physical theories developed after the introduction of calculus. The underlying framework of these theories is the differential and integral calculus in the form developed by Leibniz.
Mário J de Oliveira
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Numerical and Analytical Methods in Non-Newtonian Fluid Mechanics

Applied Rheology, 2001
Maia João M.
doaj   +2 more sources

Numerical-analytical method in reinforced concrete mechanics

Structural Mechanics of Engineering Constructions and Buildings, 2022
A variant of the numerical-analytical method in the nonlinear mechanics of reinforced concrete is proposed. Calculation models make it possible to take into account a number of important factors, such as discrete cracks, the effect of concrete ...
Vladimir I. Kolchunov
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Application of Genetic Algorithm Elements to Modelling of Rotation Processes in Motion Transmission Including a Long Shaft

Energies, 2020
Genetic algorithms are used to parameter identification of the model of oscillatory processes in complicated motion transmission of electric drives containing long elastic shafts as systems of distributed mechanical parameters.
Andriy Chaban, Marek Lis, Andrzej Szafraniec, Radoslaw Jedynak   +3 more
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Identification of ice-over-water multilayer clouds using multispectral satellite data in an artificial neural network [PDF]

Atmospheric Measurement Techniques
An artificial neural network (ANN) algorithm, employing several Aqua MODerate-resolution Imaging Spectroradiometer (MODIS) channels, the retrieved cloud phase and total cloud visible optical depth, and temperature and humidity vertical profiles is ...
S. Sun-Mack, P. Minnis, Y. Chen, G. Hong, W. L. Smith Jr.   +4 more
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Symmetries in central-force problems [PDF]

Serbian Astronomical Journal, 2003
The two-body problem in central fields (reducible to a central-force problem) models a lot of concrete astronomical situations. The corresponding vector fields (in Cartesian and polar coordinates, extended via collision-blow-up and infinity-blow-up ...
Mioc V., Barbosu M.
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Hyperbolic normal forms and invariant manifolds: Astronomical applications [PDF]

Serbian Astronomical Journal, 2012
In recent years, the study of the dynamics induced by the invariant manifolds of unstable periodic orbits in nonlinear Hamiltonian dynamical systems has led to a number of applications in celestial mechanics and dynamical astronomy.
Efthymiopoulos C.
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Non-holonomic constraints: Considerations on the least action principle also from a thermodynamic viewpoint

Results in Physics, 2023
For the system with non-holonomic constraints, the principle of least action does not seem to lead to the equations describing the motion, which are consistent with the physical behaviour. Here, some considerations are developed on this fundamental topic
Umberto Lucia, Giulia Grisolia
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An analytical solution of boundary problems of shell deformation mechanics [PDF]

MATEC Web of Conferences, 2022
This paper proposes an algorithm for the analytical (with a controllable error) solution of boundary-value problems of shell deformation mechanics. Decomposition of partial differential equations is per-formed.
Vinogradov Yuri, Kashfutdinov Bulat
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Analytical, Numerical and Big-Data-Based Methods in Deep Rock Mechanics

Mathematics, 2022
With the increasing requirements for energy, resources and space, numerous rock engineering projects (e [...]
Shaofeng Wang, Xin Cai, Jian Zhou, Zhengyang Song, Xiaofeng Li   +4 more
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