a comprehensive mathematical model based on the discrete particle model and computational fluid dynamics was utilized to investigate mixing and segregation of particles in fluidized beds at high pressure. to quantify the extent of mixing in the bed, the lacey mixing index was used. simulations were carried out with different mass fractions of small particles at various pressures ranging from 1 ...

Some probability inequalities are obtained, and some liminf results are established for a two.parameter Wiener process by using these inequalities. The results obtained improve those of Lacey (1989) and get the watershed between the Chung type laws of the iterated logarithm and the Lacey type laws of the iterated logarithm.

It is shown that product BMO of S.-Y.A.Chang and R. Fefferman, defined on the space R1 ⊗ · · ·⊗Rdt , can be characterized by the multiparameter commutators of Riesz transforms. This extends a classical one-parameter result of R. Coifman, R. Rochberg, and G. Weiss [8], and at the same time extends the work of M. Lacey and S. Ferguson [12] and M. Lacey and E. Terwilleger [19], on multiparameter c...

Abstract Discrete phase method (DPM) model was used to analyse rotary drum systems for segregation behavior. DPM simulations were performed comparison with a dynamic experimental measurement from the literature. This included and time-averaged particle velocity field, which validated data. In addition, direct parcel scaled simulation study effect of size scaling. The dynamics evaluated using La...