Tests of a conical-spherical body in supersonic wind tunnel were carried out on free oscillation installation along the pitch angle at Mach number M = 1.75 and two moments inertia relative to axis rotation. For with large moment inertia, self-oscillations amplitude ca. 10 deg obtained. first time, phenomenon degeneration for smaller has been discovered. An attempt was made model using an ordina...

Surprisingly large, spontaneous electric dipole moments recently observed in homonuclear niobium clusters below 100 K are explained using first-principles electronic structure calculations. The calculated moments for Nb(n) (n < or =15) generally agree with the experimental data. A strong correlation is found between the geometrical asymmetry of the cluster and electric dipole: its magnitude is ...

Gyroscopic alignment of a fluid occurs when flow structures align with the rotation axis. This often gives rise to highly spatially anisotropic columnar that in combination complex domain boundaries pose challenges for efficient numerical discretizations and computations. We define gyroscopic polynomials be three-dimensional expressed coordinate system conforms rotational alignment. remap origi...

Quadrupole and hexadecapole moments of superdeformed bands in the A∼150 mass region have been analyzed in the cranking Skyrme-Hartree-Fock model. It is demonstrated that, independently of the intrinsic configuration and of the proton and neutron numbers, the charge moments calculated with respect to the doubly-magic superdeformed core of Dy can be expressed very precisely in terms of independen...

This paper presents the theory and design of a torque-optimal guidance algorithm for CubeSat applications. CubeSats and nano-satellites provide mission-flexible low-cost platforms for the academic and scientific communities to conduct cutting-edge research in the harsh environment of space. The mission life of nano-satellites may be limited by the attitude actuators, and it is therefore benefic...