Results 21 to 30 of about 41,264 (251)

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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Dadourian's Analytical Mechanics [PDF]

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

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

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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Approximate analytical and numerical solutions of a nonlinear boundary value problem in fluid mechanics based on symmetry reduction

Partial Differential Equations in Applied Mathematics, 2020
This work presents applications of the Liesymmetry method to a boundary value problem (BVP) of the governing equations in fluid mechanics. The Wu differential characteristic set algorithm is used to obtain a group of multi-parameter symmetries for the ...
Litao Gai, Mingchu Li, Bilige Sudao
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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

Mitigating impacts of low energy laser pulses on CALIOP data products [PDF]

Atmospheric 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, J. L. Tackett, R. A. Ryan, A. E. Garnier, J. Kar, J. Kar, B. J. Getzewich, X. Cai, M. A. Vaughan, M. A. Vaughan, C. R. Trepte, R. Verhappen, D. M. Winker, D. M. Winker, K.-P. A. Lee, K.-P. A. Lee   +15 more
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Learning Processes in Mechanics of Structures: Allying Analytical and Numerical Approaches

Education Sciences, 2020
This paper reports pedagogical experiences and educational techniques in the field of Mechanics of Structures (Mechanical Engineering degree), resorting to computational tools. Several aspects are addressed, covering CAD (Computer-Aided Design) modelling
Fábio A. O. Fernandes, Clauber Marques, Jovani Castelan, Daniel Fritzen, Ricardo J. Alves de Sousa   +4 more
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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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