The coupling factors in flight dynamics and its influence on flight control are analyzed,and the shortage of traditional direct force control(DFC) is given.

The direct force posirtion control technology is widely applied in anti-missile missile.

According to the nonlinear missile model of side jet force and aerodynamic force compound control,design and simulation based on single channel is presented to verify the nonlinear control law.

For the air defense intercept missile with side jet and aerodynamic compound control, the terminal guidance design is investigated.

For improving lateral direct lift control system of aircraft, we improve dynamic inversion method through combining it with fuzzy control method with correction factors.

Direct effect of Directives,among all of the secondary legislation of European Communities,is quite a controversial issue;in particular,whether directives have direct effect or not in each Member State is an area from which a series of litigation have arisen.

As far as our country is concerned, constitution is only to have direct effect in constitutional case, by the flexible use of phrased clause of civil law, the constitution has indirect effect in civil case.