Method Thirty adult male Spraque-Dawley(SD) rats were randomly divided into three groups:control, TS (tail-suspension) and VE+TS groups.

Rat tail-suspension model have been developed and broadly used to provide a ground-based system simulating certain biological effects of weightlessness.

New method for monitoring the cardiovascular function in invasive tail suspension rats

Objective To explore changes of local renin-angiotensin system(RAS)in renal tissue of rat during short-and mid-term tail suspension,as well as their relations with humoral regulation and renal function induced by real or simulated weightlessness.

Method Weightlessness was simulated by tail suspension of rats.

As there are always problems in huge hanging pillar construction in public buildings,through the analysis of some project,it puts forward formwork system and its construction method,so as to ensure the quality,safety and speed,which is a reference for similar projects.

By comparative analyzing about the design of the stern post,rudder system and the main propulsion system for the 5 000 t river to sea cargo ship, the authors indicated that a scientific and economic plan could be reached in order to save the construction cost.