Based on of nonmomental theory of axial symmetry revolving shell, it is discussed specially on tactic’s analysis of global coping of large-scale anaerobic digester.

Application of matrix theory to solving the general formula of fractional linear recursive series;

In this paper, the correlation theorem about one kind of linear programming model is derived from matrix theory.

In the light of matrix theory, the character of stress increment which causes the rotation of principal stress axes is analysed and the general stress increment is decomposed into two parts: coaxial part and rotational part.

The linear moment theory of shells is applied to the analysis of bending displacements and stresses in disks with the membrane displacements and stresses obtained from the non linear membrane theory of shells as the initial states.

On the basis of a single series analytical solution of the bending theory, byintroducing the principle of superposition and by the method of expanding the infinite series into an infinite system of linear equations, an analytical solution or the shallow spherical shell with four edges clamped .