Results: It was useful for promoting pulp vascular regeneration and preventing root resorption of replanting immature permanent teeth using local oxygen therapy and the local application of drug to isolated teeth.

Nanoparticles have several special adventages over the conventional carrier for local drug delivery.

It is thought that the local drug delivery which allow very high local concentrations of drug and prolonged residence time of drug to be achieved were keys to prevent restenosis with pharmacological agents.

Currently, there are mainly two local drug delivery syetems are employed to prevent restensis after balloon angioplasty including drug-eluting stent/radioactive stent and catheter-based drug delivery system.

Therefore,three partial aeration measures including influent preaeration,aeration in the foreside of wetland and aeration in the backside of wetland,were adopted to intensify pollutants removal in the wavy subsurface-flow constructed wetland(W-SFCW).

The local oxygen supply design is promoted according to the driver s working environment on Qinghai Tibet railway.

Technology of local oxygen-increasing ladder-shaped combustion is not generall y popularized for multitudinous reasons at home, but this high technology has no w matured, and it can be used in various glass melting furnaces.