In this paper,we trying to solve the aforsaid issue with the relative height ratio method.

The high contrast ratio originates from the combination of light scattering from the microdomain polymer gel and absorption from the black dyes.

In order to attain high-contrast and fast noninvasive photoacoustic image,the multi-element phase-controlled technique was combined with the method of increasing the diaphaneity of the tissues with glycerin.

Quantitative image analysis involved calculation of signal-to-noise ratio,contrast-to-noise ratio and relative contrast.

The deformation mechanism of the part and the relationship between drawing factor and relative height were deduced.

The change in the specific roll pressure of workblanks is investigated as the tool surface roughness and the relative height of workblanks are changed.

Groundwater level is one of the most important factors to determine the relative height of pavement subgrade in soft soil area.

Experimental investigation on the effect of the relative stiffness ratio between superstructure and ground soil on the fundamental frequency of soil-structure system;

The relationship between the fundamental frequency discount and the relative stiffness ratio was obtained by data fitting.

A parametric study on the relative stiffness ratio,the relative mass ratio between the megaframe and the substructures and the additional column ratio that influences the response controll effect of the MSCS under semi-active control is performed.