Performance-based study on institutional capacity of local environmental protection bureau;

Few studies,however,have explored the relationship between institutional capacity and regulatory enforcement.

In the method,mechanism functions are expressed by functional vectors,which include the dual-functional vectors denoting direction and a functional matrix denoting quantity.

In this paper, on the basis of the working requirements of the high-voltage vacuum circuit breakers s spring operating mechanisms, some design problems of the energy storage mechanisms are discusses in this breakers s spring operating mechanisms.

In this paper,on the basis of some design problems of the energy storage mechanisms in the high-voltage circuit breakers’s spring operating mechanisms, An new ratchet mechanism is designed.

That is, "the capacity ratio for facilitating the structures to be better energy dissipation organization m ", "the capacity ratio for avoiding the brittleness failure n " and the constitution measure to ensure ductility of yielded positions.

Study on the Evolution History of Art and Structure Function for Dougong;