Results 21 to 30 of about 34,595 (165)
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
doaj +1 more source
Identification of ice-over-water multilayer clouds using multispectral satellite data in an artificial neural network [PDF]
Atmospheric Measurement TechniquesAn 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 +4 more
doaj +1 more source
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.
doaj +1 more source
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.
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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 +4 more
doaj +1 more source
Advances in classical and analytical mechanics: A reviews of author’s results [PDF]
Theoretical and Applied Mechanics, 2013 A review, in subjective choice, of author’s scientific results in area of: classical mechanics, analytical mechanics of discrete hereditary systems, analytical mechanics of discrete fractional order system vibrations, elastodynamics, nonlinear ...
Hedrih-Stevanović Katica R.
doaj +1 more source
Mitigating impacts of low energy laser pulses on CALIOP data products [PDF]
Atmospheric Measurement TechniquesThe spaceborne Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) experienced an increasing number of intermittent low energy laser pulses in the final 7 years of the Cloud-Aerosol Lidar and Infrared Pathfinder Observations (CALIPSO) mission due ...
J. L. Tackett +15 more
doaj +1 more source
Uma aplicação do método da mínima restrição de Gauss
Revista Brasileira de Ensino de FísicaO método da mínima restrição de Gauss é recapitulado e aplicado à solução do movimento de uma esfera sobre solo rugoso sob a ação de força (dentro de certas aproximações).
G.F. Leal Ferreira
doaj +1 more source