Liberties are very important, individuals could not get it easily, and
they lost many people for that. Then after they got their liberty, it
was necessary to ensure the protection of this freedom, by the law
and the Constitution. Although we always use the rules of the
constitution, sometimes state suffers of disasters affect its
security, and the work of its Intuitions, so in this case the state has
to have special rules such as ((state of emergency)) .
Surface protective thin layers of high temperature oxidation resistant aluminum
oxide Al2O3, have been prepared by the sol-gel processing, using the spin coating
method. In order to increase layer thickness, corundum suspension was added to
the al
umina sol.
