Based on the research results of experts,sets out from momentum,and analyses the momentum change of liquid and solids,and puts forward calculation models of settling slurry velocity distribution and friction loss in vertical pipeline.

Heat transfer for the liquid with low boiling-point in the vertical tube;

Study on spiral flow in vertical pipe using the particle image velocimetry

Taking the object of transporting carbon black,analyzed the transportation pressure losing of level pipe、vertical pipe and bend pipe of the pneumatic transportation pipe line,gained the pres-sure losing formula of the three sorts of pipe line.

Hydraulic hoist of solid coarse particles in the vertical pipe is used in oil extraction, chemical engineering, ocean mining, coal mining and silt cleanup and so on.

Many people think the state environmental protection agency should strengthen the administration through vertical management.

The essay dealt with the methods and effect of vertical nursing management,explored the way for the nursing department to implement the vertical management on staff members,money and property,and then made the nursing department a managerial department with the integrity of power and its responsibility as well as the relatively prope.

To solve these problems,corresponding measures can be taken by the NPC Standing Committee,for instance,the establishment of an audit committee,the vertical management of local audit organs,and improvement of the personnel system of auditing organs and the audit announcement system,and perfection of the audit accountability system.

A calculation method for bottom-hole pressure in CO2 gas well is established according to energy balance equation for vertical conduit flow by using the method of calculating CO2 physical properties(density,Z-factor and viscosity) and combining with the unique phase characteristics of CO2 in well bore.