A better transition layer material was confirmed,which overcame the problem of fragmentation and lamination of PDC.

The fragmentation influences the char combustion behavior in a fluidized bed combustor.

Based on the perturbative QCD predictions of gluonic distributions and branch cross section of the J/(?) decay via hadronic, electromagnetic,and radiative channels, the strict solutions of LUND area law of string fragmentation had-ronization are used to treat nonperturbative hadronic production processes, a possible description and Monte Carlo packet for the J/(?) hadronic decay are obtained.

The results show that the fracture process of weathering is a fractal one.

Failures of IC smart cards,caused by fracture of thin/ultra-thin Si chip,break of wire bonding or ESD etc.

The fracture of thin/ultra-thin silicon dies accounts for half of the failures of IC cards,and its failure modes and failure mechanism are not well understood then.

An Analysis on Break of Separating Ring for Horizontal Concasting and Improved Measures;

Based on the results of underground observations and model tests of simulated materials of immediate roof, it is expounded that fragmented roof belongs in cataclastic rock mass,and its caving characteristics is clarified in this paper too.

Finally, 154 historical fragmentation events occurred from 1961 to 1999 are simulated with the most appropriate models and parameters in order to create small space debris environment database (SDED).