Treatment of anterior crossbite of severe crowd in maxilla with non-extraction during growth spurt of puberty;

By distinguishing the high density and crowd,this paper argues that it should be careful to use high-den.

Change in the Contents of Lipid Peroxide,and Activity of Antioxidant Enzymes in the Liver of Mice under Crowding Stress;

From the point of view of trend toll control, study on transfer of highway network crowding degree, analyse the effect of trend toll on highway network crowding degree, and a function considering the toll influences is presented,thus a new method to solve the problem of highway network crowding is put forward.

By combining fitness sharing method and crowding method in selection stage and replacement stage of genetic algorithms respectively, a fitness sharing crowding genetic algorithms is proposed.

Social problems behind the traffic jam phenomenon;

The reason of Chinese city s traffic jam have objective factor,but the more important is the traffic management isn t perfect.