There are many methods for computation of the slope and deflection of beams such as the integration method, the finite difference method, the Macaulay′s method, the Mohr′s ‘area-moment’ methed and so on.

The paper discussed the change principle of high degree parabolic curvature and point out that the slope of point which curvature is largest have relation only to n-the degree of parabolic, while n→∞,the limited values are and 35.

Analyzing plow chain's power with or without the effect of angle of the conveyor,studying three kinds of main resistances.

Researched AS-UII robot then gives a kind of method how to measure angle of robot indirectly.

In order to control the clamping force scatter, we alsowant to use torque adding angle to replace the old design(torqueonly).

3D finite elements method analysis on wharf structure and soil in the corner of No.2 croy of Tianjin Port;

The corner of the bottom ball is one of the important parameters restricting the deep water.

The corner acting as the node of elements,the researching of corner provides the new viewpoint to evaluate architecture,which establish the dialectic relationship between local and whole.

It points out further that line-strain is the function of rotation angle,and proves the conclusion that small deformation hypothesis requires small deformation and small rotation angle.

A measurement method based on image is present to measure rotation angle at high precision of 5″ which uses a line as the character sign.

A new finite element - rectangle plane-shell element with rotational degrees of freedom is given via the derivation of the stress matrix and stiffness matrix of the element.

Based on the theory and test, the elasto plastic rotation curvature relationship is discussed with regard to bond and slip, and formulas for calculating yield slip rotation and ultimate slip rotati.

The simplified calculation model of frame-shear wall structure is directly given by the definition of frame stiffness in resisting horizontal displacement and the definition of rotation stiffness for the coupling beam.