In the dynamic response analysis of practical engineering structures, there are two commonly used direct integration methods, i.

First,with the local linear method,the coefficient functions of the model are estimated,and then,with the integration method,their integrations are estimated.

Using standard ODE theory and integration method,through lengendre transformation,a sufficient and necessary condition on existence(nonexistence) of entire radial solutions for a class of quasilinear elliptic equations is given.

A survey of research advances in system dynamics of generalized classical mechanics is made,which includes the variational principles and the equations of motion,algebraic structure and geometrical structure,integrating methods of the equations of motion,integral invariants,symmetries and conserved quantities,generalized nonholomic mechanics and so on.

The Integral Method and Computation for Constructing B-Spline Functions;

Using integral method to compute the variable radiation heat .

The B spline function in S 1 2(Δ * 3) is constructed by means of the integral method and its B net representation is also presented.

As a direct 3-D electromagnetic forward approximate modeling method,the traditional integral equation approach is characterized by a great deal of computational effort and lower precision.