Results 11 to 20 of about 36,720 (153)

Symmetries in central-force problems [PDF]

open access: yesSerbian 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]

open access: yesSerbian 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

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

open access: yesEPJ 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.   +10 more
doaj   +1 more source

Non-holonomic constraints: Considerations on the least action principle also from a thermodynamic viewpoint

open access: yesResults 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]

open access: yesMATEC 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

open access: yesMathematics, 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]

open access: yesTheoretical 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]

open access: yesAtmospheric Measurement Techniques
The 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

Mechanical Foundations of the Generalized Second Law and the Irreversibility Principle

open access: yesFoundations
We follow the Boltzmann-Clausius-Maxwell (BCM) proposal to establish the generalized second law (GSL) that is applicable to a system of any size, including a single particle system as our example establishes, and that supercedes the celebrated second law
Purushottam Das Gujrati
doaj   +1 more source

Home - About - Disclaimer - Privacy