Faced with the problem of the loose and extrusion,and then the malfunction of the osseointegrated implant for percutaneous osseointegrated artificial lower limb attachment after long-time of use caused by stress shielding,which occurred always around traditional one part implant,a new type of implant—multi-part implant was developed.

One-part implant widely used for osseointegrated artificial lower limb attachment would lead to osteoporosis caused by stress shielding after a long time of implantation, and result in failure.

Research of reducing the shielding effect caused by vehicles passing the Radioactivity Monitor System;

The stress intensity factor of main crack, which is difficult to be calculated directly due to the shielding effect between cracks, can reflect the damage of components.

Starting from the four concepts of orbit energy, energy class,shielding effect and infixing effect, the author uses the two commonly applied methods of caculation orbit energy to analyse and compare 4s orbit energy and 3d orbit energy.

Canopy characters impacts on screening effect to UVB of urban artificial communities in Shanghai;

The results show that reducing earth resistance is mainly through reducing the contact resistance of earthing electrodes and dispersed resistances;increasing the encircled area of a earthing electrode is advantageous to the reduction of earthing resistance;the shapes of compound earthing electrodes and the influence of screening effect in th.

Based on the shielding effectiveness of Faraday cage,the test set-up for ESD circuit waveform composed of ESD simulato.

Aiming at the magnetic field shielding effectiveness in magnetic fuze application, the spheroidal shell is brought forward to act as the fuze body approximate model.