Research on MMSE-BLE algorithm with direct FFT method and simulation of performance;

Currently there are many dynamic analysis methods for single fringe pattern, such as spatial carrier phaseshifting, FFT, direct phase measurement and so on, However, there are also inherent limitations for each method in accuracy of automatic processing, such as in processing of automatically identifying and eliminating ineffective points.

Optimization of adaptive direct methods of Fredholm integral equations of several variables;

The Important Role of Direct Method of Social Work in FP Work at Grassroot Level;

The practical stability in terms of two measures of impulsive differential systems and its perturbed systems is de-veloped by Lyapunov direct method.

The optimization of direct methods and information complexity for approximate solution of operator equation are two main aspects of information-based complexity theory, which has been developed from the eighties and is an interdiscipline of computer science and mathematics.