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.

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