In this thesis, the present studying status of the pressure method, the displacement method and the finite element method in the design and computing of anti-slide pile is introduced systemically.

A simple experimental apparatus of permeating is designed based on the Washburn equation,in which pressure method is used to measure the media contact angle and water-oil ratio LHR is introduced,finding out the water-oil ratio of two filtering media after the modification of different polarity solution at 25℃.

The space charge distribution and the isothermal decay for Low Density Polyethylene(LDPE) and LDPE doped with four inorganic powders(TiO_2,SiO_2,BaTiO_3,Al_2O_3) were investigated by using of the Pulsed Wave Propagation(PWP) method.

It is proved that the normal pressure on the sliding surface,sliding velocity and surface characteristic have influence on variety laws of frictional coefficient on the sliding surface.

Normal pressure is selected as secondary variable to estimate or calculate performance targets of the adhesion interface system, such as normal adhesion force, tangential adhesion force and friction, the performance equation of the adhesion interface system between soil and plane blade w.

To investigate the effect of normal pressure and contact friction on the formability of sheet metal,the viscous pressure bulging tests of overlapping sheet metals were presented and then simulated by the finite element code DEFORM-2D combined with the ductile fracture criterion.

The key mechanism of pressure therapy(PT) on hypertrophic scar(HS) control is that it can reduce the blood supply and cause hypoxia, and hypoxia then results in a series changes.

In this paper, the experience method, gas phase pseudopressure method, B-W method, oil reservoir integration method and approximation method for analysing gas condensate well testing are emphatical- ly described, and their characters, correctness and application scope are also compared.