The method of geometric modeling for the craters resulting from static indenting tests is important to computer simulation of rock bit penetrating and discussed through processing the data acquired from the tests.

The measurement and analysis of craters and bottom-hole pattern is an important link of drilling test and a key means of studying rock-breaking mechanism and valuating rock-breaking efficiency.

However,because of lacking high efficiency and high precision for the measurement of craters on the conical surface rock,the traditional single row drilling experiment is carried out on planar rock.

Establishment of Crushing Theory of Air Striking and Its Industrial Practice in Fine Breaking of Hard Rock;

Hierarchical multi-scale discrete particle model and crushing simulation;

Contrasts of Numerical Simulation s about Talc Crushing Process;

The study on releasing adenosylmethionine by breaking yeast;

Experimental research on vibration removing and breaking of cobalt-rich crusts;

Selection of breaking equipment for Jiangkou artificial aggregate system and architecture comparison;

Study on the Mechanism of Liquid Jet Breakup under Heating Conditions;

The Study of Breakup Scale of Liquid Sheets under Heating Conditions;

Breakup of a Liquid Jet with High Speed at Its Initial Stage;

Problem of corn breakage in bulk grain port handling systems;

Irrational drying conditions would lead to crack of rice,increasing sensitivity of breakage and lowering percentage of head rice during milling.

According to the characteristics of the heat and mass transfer for large carbon particles in fluidized bed, deduced the distribution of the thermal stress in the large carbon particles and developed a thermal stress breakage theory for large carbon particles during combustion in fluidized bed.