With air and water as the working fluids, an experimental study on the characteristics of the interfacial waves in gas - liquid two - phase flow in a horizontal rectangular channel was conducted by using three two - parallel conductance probes to measure the instantaneous liquid film thickness.

The numerical analysis were performed for the air-side flow and heat transfer characteristics of wave-fin flat tube.

Measures of improving the management level and the operational efficiency of the large track maintenance machine;

Strict road construction contract management and accelerate the increasing of project management level;

Evaluation of management level of weapon system development departments based on Bayes analysis;