Electron elastic-scattering phase shifts and cross sections along with the differential and total cross sections and polarization of low-frequency bremsstrahlung upon low-energy electron collision with endohedral fullerenes A@C 60 are theoretically scrutinized versus the nature, size and spin of the encapsulated atom A. The case-study-atoms A are N, Ar, Cr, Mn, Mo, Tc, Xe, Ba, and Eu.They are thoughtfully picked out of different rows of the periodic table. The study is performed in the framework of a model static approximation. There, both the encapsulated atom A and C 60 cage are regarded as non-polarizable targets. The C 60 cage is modeled by an attractive spherical annular-potential well. The study provides the most complete initial understanding of how the processes of interest might evolve upon electron collision with various A@C 60 . Calculated results identify the most interesting and/or useful future measurements or more rigorous calculations to perform.

Mass transfer between the two phases of a liquid-liquid dispersion is affected by drop coalescence and breakup. When all the droplets have the same residence time, a proper description of the drop population requires a trivariate distribution function. The distribution, dependent on the residence time of the dispersion, is written in terms of the size of a drop, amount of solute in a drop, and drop age. Population balances for a homogeneous, batch stirred tank and a steady-state, laminar flow spray column are developed. These equations are solved for the average solute concentration in the dispersed phase as a function of two dimensionless groups: (D0/ff"2/8) and ( ; 02/8/D), where D is a diffusion coefficient, a residence time,

The size distribution of drops formed b y injection of one liquid into another was quantitatively determined as a function of the direction of mass transfer between the phases. The experiments indicated a profound influence of mass transfer on the character of the drop size distribution.Downloaded by UNIV OF NEBRASKA-LINCOLN on August 24, 2015 |