Based on the existing moment-type method, the method windowing the empirical characteristic function (ECF) and a new method estimating parameters of symmetric α stable and Gaussian distributions were proposed.

Reliability sensitivity for correlative variables by moment method

To study the change of particle size distribution,a general dynamic equation is established based on the moment method and the assumption of a reasonable log-normal size distribution.

Based on the concept of the moment method, the poly-dispersed particulate matter (PM) generated during pulverized coal combustion was partitioned into fine-mode and coarse-mode.

The generalized reflection-transmission coefficient matrix method for synthetic seismograms;

For arbitrarily spatial elastic curved rod elements with circular cross-section, a set of displacement functions fully reflecting the rigid body modes is derived using the classical elasticity theory and mathematic theories of the differential geometry and matrix methods.

3-D rigid--plastic FEM and matrix method are adopted to calculate plastic deformation of strip and elasticdeformation of rolls respectively.

Considering the mechanical and electrical boundary conditions of AlN/GaN structures,determinantal equation which is used to solve the phase velocity of surface acoustic wave(SAW) is given from the basic principle of matrix methods.

The complex beam parameters in spherical resonators with an aperture is analyzed by matrix methods.

In this thesis, the propagating properties of surface acoustic wave (SAW) in AlN/GaN structures were researched by the Adler matrix methods.