A new method for multiple faults diagnosis of nonlinear systems based on fuzzy parity equation was presented.

In this method, the Takagi Sugeno (T S) fuzzy model, fully decoupled parity equations and parameter estimation are combined to detect, isolate and identify sensor faults for nonlinear systems.

A fault diagnostic method for actuators in nonlinear systems based on T-S fuzzy model and parity equation is discussed in this paper.

The dual equations and analytical solutions of two-dimensional crack problems in piezoelectric ceramics;

New sufficient conditions for the non-existence of positive solution to a nonlinear difference equation with unbounded delay and to its dual equation are obtained, and some of the results in the literature are improved.

By making Laplace and Fourier transformation as well as sine and cosine transformation to moving differential equations and various responses,the dual equation which is constructed from boundary conditions lastly was solved.

In this paper,by taking the stationary field for example,equal calculation of polari- sation medium additional field is studied,then dual methods between electric field and magnetic field are described.

In this paper,a dual method for sloving a class of convex quadratic programming problems is given.

By discussing the content of dual operations,dual figures and dual principle,the article puts forward the concept of dual method, and expound further the use of dual principle and dual method in the higher geometry and wide use in other subject

Research on the Criterion of Spouse-selection and the Way of Spouse-selection of Contemporary Suzhou City Young People;