[Objective] To observe the structure characteristics of nano decalcified bone matrix(DBM)produced by MICROS super fine mill,and to study the nano-technologies of DBM and the biocompatibility of nano-DBM as bone graft substitutes.

Force analysis on main shaft of super micro mill;

The Research and Development of Parameterized Design System of the CM Super Micro Mill;

In order to improve the processing results of a turbulence superfine mill, it is necessary to cognize the flow field frame and flow state in the concave.

Progress of ultra-fine grinding and classifying techniques in China;

Through experimental studies on ultra-fine grinding of molybdenite,it can be found that there is the effect of density in grinding,the ratio of ball to ore,ball distribution,rotating speed of mill, the consumption of dispersant,grinding time on grinding process.

The present states of the ultra-fine grinding technology and equipment for non-metallic ores are reviewed in recent years in China.

Influence of liquid medium on ultrafine grinding of pyrite;

Study of ultrafine grinding of pyrite catalyst used in direct coal liquefaction;

Affecting mechanism of grinding aid during ultrafine grinding;