Observations show that there exist phenomena of periodic expansion and contraction and microexplosion for LP1846 drops in a range of 120 ￣ 160℃.

Both theoretical and experimental research of microexplosion of emulsified fuels dropletare included in this paper.

Based on the theoretical analysis and experimental results, a new mathematicalmodel-partial mixed and multi-step evaporation model, which is about the microexplosionof single droplet of emulsified fuels, is put forward in this paper.

Micro explosion of a LO_2 vacuum pipe and solutions;

The micro explosion mechanisms of O/ W and W/O emulsified heavy oils were described.

An general model of the micro explosion of emulsified droplets,suitable for oil in water(O/W) and water in oil(W/O) is presented.

Recent experiental advances in combustion and micro-explosion of emulsified oil;

Study of Micro-explosion of Multi-component Spray Under High Pressure High Temperature Conditions;

Laser holographic photograph technique and high-speed digital camera were respectively used to observe the instant and entire process of micro-explosion phenomenon,which occurred in the diesel,methanol and water emulsion spray at high temperature and high pressure(3.

Experimental research on notching wet beach of Yellow River by short-delay blasting;

Speeding up of concrete foundation demolition in plant building using technique of short-delay blasting;

Connecting with the actual situation of the blasting of highway eng in eering, this paper discusses on the significance of using short-delay blasting and its technical feasibility, and points out that the short-delay blasting can increase the charging quantity and working efficiency, and also can lower the i nfluence of blasting impact on the environment.

Application of millisecond blasting technology in Lanping open-pit mine;

In millisecond blasting engineering, the designed or selected time of delay is always different from the practical time of delay due to the delay errors of plain detonators, and influences the effect and successful implementation.

To increase lump coal ratio in stopes, a scheme is put forward for coal falling by loose pre-shearing millisecond blasting, and hole arrangement parameters and blasting parameters are adjusted.