The hydrodynamic behavior of the dispersed bubble regime, the coalesced bubble regime, the slug flow regime, the froth flow regime, and the annular flow regime in a gas-liquid-solid three-phase co-current flow system was studied by deterministic chaotic analysis of time series data of pressure fluctuations.

The development of MR focuses in high performance magnet,twin grads technology,phased array coil and parallel imaging technology.

For all kinds of sensors in the system,it states serial acquisition technique and various parallel acquisition techniques including single point reading,multiple channel scan,DMA high-speed data acquisition and count value acquisition,it also gives out the principles,characteristics,usage areas,acquisition flows and software realizations of both acquisition techniques in detail.

A test system which can perform the function of multi signals parallel acquisition and serial transmission was designed in this paper.

The relationships between application,technology,three aspects of the development of the Fast Electronics Laboratory are analyzed,and the advances made by the Laboratory in electromagnetic simulation,parallel sampling and jitter are briefly described.