We investigate the motion of artificial satellites with large area-to-mass ratios in high-altitude low inclined orbits, perturbed simultaneously by solar radiation pressure andEarth’s oblateness. Our study is based on recent theoretical advances in circumplanetary dust dynamics (Hamilton & Krivov 1996). Applying these methods to the motion of balloon satellites, we write down and analyze the or...

A~traet--This paper presents the exact dimensionless equations of motion and the necessary conditions for the computation of the optimal trajectories of a hypervelocity vehicle flying through a non-rotating spherical planetary atmosphere. Numerical solution is then presented for the case when the vehicle makes several passages through the atmosphere near the perigee of its orbit. While the orbi...

in this paper, free vibration of functionally graded rectangular simply supported thick plates based on two variable refined plate theory is presented. according to a power-law distribution, the mass density and elasticity modulus of the plate are considered to vary while poisson’s ratio is constant. in order to extract the five constitutive equations of motion, hamilton principle is employed. ...

We present a simple method for determination of the orbital parameters of binary pulsars, using data on the pulsar period at multiple observing epochs. This method uses the circular nature of the velocity space orbit of Keplerian motion and produces preliminary values based on two one dimensional searches. Preliminary orbital parameter values are then refined using a computationally efficient l...

The dynamics behavior of a discrete-time three-species food chain model is investigated. By using bifurcation theory, it shown that the equilibrium point system loses its stability, and undergoes Neimark–Sacker bifurcation, which leads to chaos as parameter changes. chaotic motion controlled on stable periodic period-1 orbit implementation hybrid control strategy. factor affecting time also stu...

A k-orbit map is a map with k flag-orbits under the action of its automorphism group. We give a basic theory of k-orbit maps and classify them up to k 6 4. “Hurwitz-like” upper bounds for the cardinality of the automorphism groups of 2orbit and 3-orbit maps on surfaces are given. Furthermore, we consider effects of operations like medial and truncation on k-orbit maps and use them in classifyin...

This paper considers the rotational motion of a satellite equipped with flexible viscoelastic rods in an elliptic orbit. The is modeled as symmetric rigid body pair rigidly attached to it along axis symmetry. A planar case studied, i. e., assumed that satellite’s center mass moves Keplerian orbit lying stationary plane and rotation orthogonal this plane. When are not deformed, principal central...

We present a microscopic theory of spin-orbit coupling in the integer quantum Hall regime. The spin-orbit scattering length is evaluated in the limit of long-range random potential. The spin-flip rate is shown to be determined by rare fluctuations of anomalously high electric field. A mechanism of strong spin-orbit scattering associated with exchange-induced spontaneous spin-polarization is sug...

It had been observed that the mechanical stability of some magnets had influences on the closed orbit in the storage ring. In this paper, a mechanical shaker in low vibration level was applied on the quadrupole magnet. The perturbation of the closed orbit was measured. The thermal induced distortion of magnet supporting structure was discussed. The motions of BPM and quadrupole magnet were meas...