The implement of automatic monitoring wastewater discharge can realize real time continuous and remote monitoring the water quality at emission points so as to know the water quality states in time and to give warning if it is under standard level.

The influence to mechanical properties of carbon fiber made by preoxidation retention time、temperature of low-oven and exhaust emission;

The characteristics of spark timing and A/F ratio effect on HC、CO and NO x emissions are analyzed through test data, these characteristics may be used to correctly select or control the spark timing and A/F ratio for decreasing the exhaust emission of a gasoline engine.

The static exhaust emission performance of automotive gasoline engines is influenced by a few factors such as engine s crankshaft rotate speed, load, air/fuel ration and spark timing, etc, the relationship between those factors and the engine exhaust emission performance is nonlinear.

Experimental Studies on Optimum Control of Exhaust Gas Emission for Gasoline Passeger Cars;

An introduction of the IMO convention concerning the emission of marine diesel is made.