The linear stability of the triangular points was studied for the Robes restricted three-body problem when the bigger primary (rigid shell) is oblate spheroid and the second primary is radiating. The critical mass obt...The linear stability of the triangular points was studied for the Robes restricted three-body problem when the bigger primary (rigid shell) is oblate spheroid and the second primary is radiating. The critical mass obtained depends on the oblateness of the rigid shell and radiation of the second primary as well as the density parameter k. The stability of the triangular points depends largely on the values of k. The destabilizing tendencies of the oblateness and radiation factors were enhanced when k > 0 and weakened for k .展开更多
In studying the effects of radiation and oblateness of the primaries on the stability of collinear equilibrium points in the Robes restricted three-body problem we observed the variations of the density parameter k wi...In studying the effects of radiation and oblateness of the primaries on the stability of collinear equilibrium points in the Robes restricted three-body problem we observed the variations of the density parameter k with the mass parameter μ for constant radiation and oblateness factors on the location and stability of the collin-ear points L1, L2and L3. It is also discovered that the collinear points are unstable for k > 0 and stable for k < 0.展开更多
The positions and linear stability of the equilibrium points of the Robe’s circular restricted three-body problem, are generalized to include the effect of mass variations of the primaries in accordance with the unif...The positions and linear stability of the equilibrium points of the Robe’s circular restricted three-body problem, are generalized to include the effect of mass variations of the primaries in accordance with the unified Meshcherskii law, when the motion of the primaries is determined by the Gylden-Meshcherskii problem. The autonomized dynamical system with constant coefficients here is possible, only when the shell is empty or when the densities of the medium and the infinitesimal body are equal. We found that the center of the shell is an equilibrium point. Further, when k﹥1;k?being the constant of a particular integral of the Gylden-Meshcherskii problem;a pair of equilibrium point, lying in the -plane?with each forming triangles with the center of the shell and the second primary exist. Several of the points exist depending on k;hence every point inside the shell is an equilibrium point. The linear stability of the equilibrium points is examined and it is seen that the point at the center of the shell of the autonomized system is conditionally stable;while that of the non-autonomized system is unstable. The triangular equilibrium points on the -plane of both systems are unstable.展开更多
The design themes of three Qing dynasty imperial dragon robes from the University of Hawaii at Manoa Costume Collection act as carriers of the Chinese yin-yang philosophy. The information shared by these imperial drag...The design themes of three Qing dynasty imperial dragon robes from the University of Hawaii at Manoa Costume Collection act as carriers of the Chinese yin-yang philosophy. The information shared by these imperial dragon robes are discussed through a cultural and technological analysis of the symbolic motifs and fabric structures of these garments to reveal the cultural and social impact ofyin-yang on Qing imperial costume design.展开更多
文摘The linear stability of the triangular points was studied for the Robes restricted three-body problem when the bigger primary (rigid shell) is oblate spheroid and the second primary is radiating. The critical mass obtained depends on the oblateness of the rigid shell and radiation of the second primary as well as the density parameter k. The stability of the triangular points depends largely on the values of k. The destabilizing tendencies of the oblateness and radiation factors were enhanced when k > 0 and weakened for k .
文摘In studying the effects of radiation and oblateness of the primaries on the stability of collinear equilibrium points in the Robes restricted three-body problem we observed the variations of the density parameter k with the mass parameter μ for constant radiation and oblateness factors on the location and stability of the collin-ear points L1, L2and L3. It is also discovered that the collinear points are unstable for k > 0 and stable for k < 0.
文摘The positions and linear stability of the equilibrium points of the Robe’s circular restricted three-body problem, are generalized to include the effect of mass variations of the primaries in accordance with the unified Meshcherskii law, when the motion of the primaries is determined by the Gylden-Meshcherskii problem. The autonomized dynamical system with constant coefficients here is possible, only when the shell is empty or when the densities of the medium and the infinitesimal body are equal. We found that the center of the shell is an equilibrium point. Further, when k﹥1;k?being the constant of a particular integral of the Gylden-Meshcherskii problem;a pair of equilibrium point, lying in the -plane?with each forming triangles with the center of the shell and the second primary exist. Several of the points exist depending on k;hence every point inside the shell is an equilibrium point. The linear stability of the equilibrium points is examined and it is seen that the point at the center of the shell of the autonomized system is conditionally stable;while that of the non-autonomized system is unstable. The triangular equilibrium points on the -plane of both systems are unstable.
文摘The design themes of three Qing dynasty imperial dragon robes from the University of Hawaii at Manoa Costume Collection act as carriers of the Chinese yin-yang philosophy. The information shared by these imperial dragon robes are discussed through a cultural and technological analysis of the symbolic motifs and fabric structures of these garments to reveal the cultural and social impact ofyin-yang on Qing imperial costume design.
