The principle of wellhead pressure pulsation technology is to pressurize the sealed annular with hydraulic pulse pressure,the annular cement slurry will then keep moving up and down due to the micro-compressibility of the fluid,and the cement bond quality can thus be improved.

The basic reason is that the pulse pressure, produced by the pulse current, affects the nucleation and growth of the alloy.

This paper studied imbibition law and influencing factor of low permeability sandstone under normal temperature and pressure and pulse pressure through self made experiment apparatus.

Effect of pulsed bias on chemical structure of DLC films prepared by plasma processing;

Investigation on CN_x films deposited by pulsed bias arc ion plating;

Quadrupole mass spectrometer was used to analyze the plasma environment of RF magnetron sputtering PTFE target with pulsed bias.

Simulation study on vibration characteristics of low-pressure pulses jet modulator with self-vibration valves;

Simatic PCS7 controller for low-pressure pulse bag dust collecting system at SISG No.5 BF;

A revolving reverse blowing bag-type duster of high efficiency low pressure pulse and Gore fiberglass tectorial membrane filtering material were used in the fume treatment system of blast furnace gas fired and coal-burning boiler of Maashan Iron & Steel Co.

The bag filter's advantages are discussed from cleaning efficiency,running cost,and the cleanliness of CO2 by selecting low pressure pulse bag filter instead of damp electric precipit.

Experimental results indicate that the high voltage pulsed electrocoagulation technology can remove the electroplating w.

By analyzing the other two kinds of capacitive dividers,it is found,when high voltage pulse signal with a steep front of ns rang.

A novel miniaturization planar transformer for high voltage pulse is presented in this paper.