Lots of constrained motion control schemes have been proposed for robots. However, since constrained motion demands fast tracking with smooth control, few of these schemes are convenient in practice for many tasks, such as hand-control, polishing, grinding, and assembly operations. In particular, adaptive control is quite slow due to its overparametrization, while first order sliding mode contr...

The article deals with the issues of synergetic unity concepts competitiveness various levels: goods, enterprises and country's economy as a whole. pyramid is analyzed, main approaches scientists to definition categories are considered. author's approach interpreting structure from standpoint its synergy based on certain postulates principles, first which determine synergistic competitiveness, ...

Neural networks (NN) has been a popular vibration control method because of its robustness and practicability to reject broad band disturbances for complex systems such as smart structures. However, the benign characteristic of NN, suppressing a wide range frequency of disturbances, may also limit its control performance at specific frequencies and inevitably cause non-minimum output responses ...

We apply the synergetic elimination procedure for the stable modes in nonlinear delay systems close to a dynamical instability and derive the normal form for the delay-induced Hopf bifurcation in the Wright equation. The resulting periodic orbit is confirmed by numerical simulations.

NiFe/NiFeOx core/shell electrocatalysts show excellent OER activity by taking advantage of the synergetic effect between the metal core and the oxide/hydroxide shell, i.e. the metal core provides good bulk electron conduction and thus extends the OER active sites to the whole oxide/hydroxide shell, and the shell catalyzes the OER and protects the metal core from oxidation.

This work presents the synthesis and studies of a red-NIR luminescent liquid crystal compound based on an octahedral metallic cluster core orthogonally bounded to six non-mesogenic organic ligands. It evidences synergetic effects between the organic and inorganic parts of the hybrid, resulting in the generation of liquid crystal properties on cooling from the isotropic melt.