Determination of hydrodynamic parameters of shock wave were performed in the inertial plasma confinement which includes: Pressure, Speed, Mach number, Density of the two region(up stream and down stream) for the assumed fuel pellet. The shock wave created via the ablation of the outer shell of fuel pellet, through exposed it the laser and consequently caused to compressed the liquid fuel material (D-T) to moved directed to the center of pellet. Coding of numerical solutions (finite difference technique) of hydrodynamic equations by using a scientific language Matlab version (R2006a) in the smoothing and drawing of the data.

Samples of pure polyurethane (polyol + isocyanate) were prepared as well as other samples by adding urea powder, and when adding urea powder, the flexibility and cohesion of polyurethane improved, as well as its thermal conductivity decreased and its density increased, as well as flame and fire resistance. The best ratio was 5g of urea for each 12cm3 polyurethane.