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This paper introduced the vary application filtration treatment systems, different grades of water and several media materials that could be applied in infiltration treatment systems, along with characteristic of these media materials. The characterization and analyses of the media and their effects on the removal of specific contaminants, and factors affecting the fate and behavior of various contaminants in filtration systems were discussed. Case studies of the appropriate application of infiltration treatment systems were also included.

The intelligent traffic light control is the core problem in the intelligent traffic research field, in order to solve this problem, the intelligent traffic light control system is proposed based on multi CPU. In a multi processor system, aiming at the intelligent traffic light, the reasonable control is taken. In the intelligent traffic light control system, the related principles of multi processor system design and shared memory are elaborated in detail. The BP neural network self-tuning PID control algorithm is applied in the traffic lights control process, reasonable control of traffic lights is obtained. The experiment results show that the principle is applied in the intelligent traffic light control system, it can greatly improve the control accuracy, so it can meet the actual demand of intelligent traffic management.

This paper uses the Pro/E software for 3D solid modeling and use its Pro/NC module automatically generated NC code of valve block, and communication with CNC machining centers and data transmission to achieve CAD/CAM integration purposes.