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

The idea of the polar conductors with vertical arrangement was presented to the feature of San-Hu DC transmission line,and the electromagnetic environment level of polar conductors with vertical and horiz.

Using perpendicular arrays,one class of Cartesian authentication code is constructed and its size parameters are computed.

In this paper,by using perpendicular arrays,the authors construct one class of non-Cartesian authentication code,and compute its size parameters.

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.

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.