Geometric nonlinear Eulerian stability theory for the stability analysis of shallow truss structures;

This paper analyses and calculates exploringly stability issue about welding aluminum alloy I-beam by means of stability theory and design methods of steel structures,and analyzes influence on critical loads under beam′s integer buckling following material intension change in heat affecting area of aluminum alloy welding structures.

Data mining based on stability theory;

Also briefly presented was the sol-gel stability theory,including the classic DLVO theory,steric stabilization theory and depletion stabilization theory.

In addition, the stability theories are summarized, including classical DLVO theory, steric stability theory and depletion theory.

A state feedback controller was designed by Lyapunov stability theory,and the sufficient conditions were given to the implementation of synchronization of two delayed chaotic systems via linear matrix inequality technique.

By the approximation properties of fuzzy system and the Lyapunov stability theory, the parameter-adjusting laws are designed to guarantee that output of Smith-predictor can consistently converge to object output, and condition of convergence is deduced.

An improved direct adaptive fuzzy controller is presented based on hyperstability theory, in which a new adaptive law is employed to insure the system output consistently converge to the specified desired output.

A strategy combined the adaptive control theory with classical control theory was adopted, MRAC system was designed based on POPOV s hyperstability theory, the results of digital simulation were presented.