Global distribution paper

Stratospheric Ozone depletion is largely due to chlorine and bromine radicals released from halogenated hydrocarbons. This paper describes properties, emission histories and budgets of relevant substances and outlines the pertinent photochemical processes, along with a comprehensive presentation of halocarbon measurements and global distributions. 

Rowland F.S., Tyler S.C. and Martague D.C., Global distribution of CHp CClp CClp F, and CCl 2 1979. Paper presented at the lAMAP. Quadrennial Ozone Symposium,... 

The performance of these reactors is greatly influenced by (1) axial, radial, and global distribution of liquid and solids in the bed and (2) changes in bubble size, velocity, breakup, and coalescence. The second set of factors leads to an enhancement in the rates of heat and mass transfer. This happens because each particle (assumed to be spherical) is surrounded by a gas-liquid mixture of low pseudohomogheneous density. Consequently, the particle terminal velocity increases, which in turn has a positive effect on the mass transfer coefficient. A number of papers have been published (e.g., Arters and Fan, 1986, 1990 Fan, 1989 Nikov and Delmas, 1992 Boskovic et al., 1994 Kikuchi et al., 1995) on mass transfer in these reactors. 

Martel et al. (2005) propose a single-period, deterministic, multiple-product MILP model specifically developed for optimization of global pulp and paper supply chains. Based on the characteristics of pulp and paper supply chains two production echelons, one distribution echelon and... 

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