In human history, there have been a variety of means for combating the expansion of population, such as the inhibition imposed from natural forces, from poverty and wars, government interference, voluntary control, etc.

In the paper, the control system of the PUMA560 manipulator in the laboratory is studied in details and is adapted for using visual control to make the manipulator an open and general experimental platform.

This paper examines vision control in the dimension of Chinese character-based reading, with the attempt to find out the compositional pattern of visual elements, categorize visual symbols and analyze the“superposition”process of the visual elements in reading and explore the possibility of vision control.

There exists universally illusion of control,an irrational psychology among lot- to players,which appears as the phenomenon of hot numbers,the gambler s fallacy and the random bias.

The results indicate:1) under controllable conditions, the delay of feedback might lead to causal illusion;2) under uncontrollable conditions, the subjects developed superstition and illusion of control rather than helplessness; 3) providing appropriate.