Results 1 to 10 of about 139,273 (95)

A new kinematical definition of orbital eccentricity [PDF]

open access: yesSerbian Astronomical Journal, 2009
A new concept of orbital eccentricity is given. The dimensionless quantities proposed in the present paper to serve as orbital eccentricities have a kinematical nature. The purpose is to use them in describing the motion for the case of three-dimensional
Ninković S.
doaj   +3 more sources

On Orbits for a Particular Case of Axial Symmetry [PDF]

open access: yesSerbian Astronomical Journal, 2009
A particular case of steady state and axial symmetry - the potentialformula proposed by Miyamoto and Nagai - is studied. A number of orbits of abound test particle is determined numerically, with both, the potentialparameters and initial conditions ...
Jovanović, B., Ninković, S.
doaj   +3 more sources

Exploring the Fundamental Mechanism in Driving Highest-Velocity Ionized Outflows in Radio AGNs

open access: yesUniverse, 2022
We investigate the ionized gas kinematics relationship with X-ray, radio and accreting properties using a sample of 348 nearby ...
Ashraf Ayubinia   +6 more
doaj   +1 more source

Computational Dynamics of Multi-Rigid-Body System in Screw Coordinate

open access: yesApplied Sciences, 2023
This paper investigates the kinematics and dynamics of multi-rigid-body systems in screw form. The Newton–Euler dynamics equations are established in screw coordinates. All forces and torques of the multi-rigid-body system can be solved straightforwardly
Jing-Shan Zhao   +2 more
doaj   +1 more source

Sleep-push movement performance in elite field hockey champions with and without training specialization

open access: yesFrontiers in Psychology, 2023
ObjectiveTo investigate kinematic and muscle activity differences during the sleep-push movement in elite field hockey players. We hypothesized that players with specialized sleep-push movement training (specialists) would possess a lower center of mass (
Killian Cosendey   +5 more
doaj   +1 more source

Modeling the kinematics and Dynamics of Compliant Contact [PDF]

open access: yes, 2003
In this paper, we discuss the modeling of the kinematics and dynamics of compliant contact between bodies moving in Euclidean space. First, we derive the kinematic equations describing the motion of the contact point when two rigid bodies are rolling on ...
Duindam, Vincent, Stramigioli, Stefano
core   +4 more sources

A New Dynamical Parameter for the Study of Sticky Orbits in a 3D Galactic Model

open access: yesOpen Astronomy, 2011
A 3D dynamical model is used to study the motion in the central parts of an elliptical galaxy, hosting a massive and dense nucleus. Our aim is to investigate the regular or chaotic character of the motion, with emphasis in the different chaotic ...
Zotos Euaggelos E.
doaj   +1 more source

Stochastic Variational Approach to Minimum Uncertainty States [PDF]

open access: yes, 1995
We introduce a new variational characterization of Gaussian diffusion processes as minimum uncertainty states. We then define a variational method constrained by kinematics of diffusions and Schr\"{o}dinger dynamics to seek states of local minimum ...
Illuminati, F., Viola, L.
core   +2 more sources

Gasflows in Barred Galaxies with Big Orbital Loops—A Comparative Study of Two Hydrocodes

open access: yesUniverse, 2022
We study the flow of gas in a barred-galaxy model, in which a considerable part of the underlying stable periodic orbits have loops where, close to the ends of the bar, several orbital families coexist and chaos dominates.
Stavros Pastras   +2 more
doaj   +1 more source

Isolated and non-isolated dwarfs in terms of modified Newtonian dynamics [PDF]

open access: yes, 2012
Within the framework of modified Newtonian dynamics (MOND), we investigate the kinematics of two dwarf spiral galaxies belonging to very different environments, namely KK 246 in the Local Void and Holmberg II in the M 81 group.
Gentile, Gianfranco   +4 more
core   +3 more sources

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