Experimental results are reasonably and qualitatively explained on account of the laser induced melt,evaporation,plasma absorption and shielding,and impact hardening.

The ballistic behavior,impact hardening and ballistic mechanism of high nitrogen austenitic armor steel with nitrogen content of 0.

These problems include: design of double service positioned fixture,design of floating screw driver device,solving scheme of "screw driver end chamfering" phenomena,improvement design of "impact effect of swinging cylinder" and solving scheme for mistaken-action of swinging cylinder.

Using the method, impact effects of an actual prestressed concrete simply supported box girder br.

The numerical simulation on explosion and impact effect involves large deformation, high strain rate, and material damage.

With the VAR model, this paper imitated the deficit s innovation effect to GDP in China and have proved the following two options.

The shock effects of olivine in the chondrite are reflected by: planar fractures, dislocations, mosaic and brecciated textures, solid-state transformation, melting and recrystallization.

On the basis of probing into the reasons of substantial increase of international capital, we analyze the shock effect of international capital on the achievement of macroeconomic goals under opening economic conditions, and then put forward the policy recommendations of the effective managem.