Based on a river-crossing tunnel project,a three dimensional nonlinear FE model which includes the interactions between shield tunneling machine,soil and flood levee was established with stiffness transferring method and adaptive contact algorithm.

A direct adaptive line enhancement algorithm based on third-order cu mulant diagonal slice;

A new design scheme of observer based direct adaptive fuzzy controller for a class of uncertain nonlinear dynamical systems with unmeasurable states is proposed by using the approximation capability of fuzzy systems.

A direct adaptive flight control law based on BACKSTEPPING theory is designed,which show robust to uncertain model by the simulation.

A method is presented to identify the character pattern in asynchronous communications,that is,to detect the length of data bits,the check form and the length of stop bits,and a scheme is given to design the adaptive receiving system of asynchronous signals.