Results 11 to 20 of about 2,375,122 (290)

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
doaj   +1 more source

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
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

Dadourian's Analytical Mechanics [PDF]

Science, 1914
n ...
openaire   +2 more sources

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
doaj   +1 more source

City-Scale Methane Retrievals from the High-Altitude Lidar Observatory During the 2023 STAQS Campaign [PDF]

EPJ Web of Conferences
The NASA Langley Research Center's High-Altitude Lidar Observatory (HALO) participated in the 2023 STAQS mission to study air quality and greenhouse gas concentrations across major metropolitan regions in the United States, such as Los Angeles, New York ...
Barton-Grimley Rory A., Nehrir Amin R., Collins James, Collister Brian, Yerasi Ashwin, Crosbie Ewan, Harper David, Notari Anthony, Sun Xiaoli, DiGangi Josh, Choi Yonghoon   +10 more
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

Experimental Analysis of the Shot Peening Particle Stream Using Particle Tracking and Digital Image Correlation Techniques [PDF]

, 2020
The conventional air pressure shot peening process consists of multiple impacts of particles propelled with pressurized air through a nozzle at the surface of mechanical components.
KUBLER, R.F., ROTINAT, R., BADREDDINE, Jawad, ROTINAT, René, PUYDT, Q., KUBLER, Regis, BADREDDINE, J.   +6 more
core   +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, Xin Cai, Jian Zhou, Zhengyang Song, Xiaofeng Li   +4 more
doaj   +1 more source