In this paper,the authors try to apply neutral stability mode of the aircraft direct force Control technology to the air-to-air gunnery mode of the integrated flight/fire control system.

Through calculations the wave growth rate of the falling liquid film and a neutral stability curve were obtained.

This paper applies the neutral stability techniques in integrated fire/flight control system and presents the structure and dynamic model of the neutral stability plane.

After introducing the constant differential equation assistant system, the stochastic stability relative theorem of backward stochastic differential equation (BSDE) of It type is studied by the method of Lyapunov function, and two criterions of stochastic stability are testified.

In this paper we study the stochastic stability and convergence conditions of a class of asynchronous large_scale systems with random state transition.

By the method of Lyapunov function, the stochastic stability of backward stochatic differenttiai equation(BSDE)of It type is studied as follo

By means of laboratory study and synthetic test on large-scale production line,results show that the density of plasterboard may be decreased 10% and its structure stability encountered with fire may be remarkably increased due to added suitable expanded perlite into plasterboard and the prerequisite for comprehensive properties of plasterboard may not be influenced basically.

The comparison of the performances between the prepared composite neutral stabilizer and the common imported neutral stabilizer PREBLEND 8# were made.