A simple but efficient geometric pruning method is presented for the directional projection problem of B-spline surfaces.

A geometric method of qualitative analysis and stability analysis of plane dynamic system;

Study of geometric method for angle-of-arrival distribution according to phase fluctuation;

A geometric method was discussed for detendning the orbit of satellites in double satellites position ing system.

It deals with the fundamental concepts, variational principles, equations of motion, special problems, integration methods, algebraic structure, and the geometrical methods of nonholonomic mechanics.

This paper gives a general formula for the acceleration of instantaneous cen-tre of (?)gid body s rotation in the planar motion and the theorem of angular momentumof rigid body was worked out,with the geometrical method.

Password-based two-server authentication and key exchange based on geometric approaches;

Infulence of pruning methods on the amount of stumpage of Europe and the United States fast-growing poplar 107

The analytic solution of the eigenfrequencies and models of a rectangular thin plate with completed clamped supported was derived by the symplectic geometry method.