Separation dynamics

These concepts were implemented according to the following scheme the liquid element surrounding the bubble and the bulk are considered as two separate dynamic reactors that operate independent of each other and interact at discrete time intervals. In the beginning of the contact time, the interface is being detached from the bulk. When overcome by the bubble, it returns to the bulk and is mixed with it. Hostomsky and Jones (1995) first used such a framework for crystal precipitation in a flat interface stirred cell. To formulate it for a... 

Energy and natural resources processing. NSF should sustain its support of basic research in complex behavior in multiphase systems, catalysis, separations, dynamics of solids transport and handling, and new scale-up and design methodologies. 

Separation Dynamics. The mass transport dynamics of the system were examined with respect to extraction, back extraction, and time interval between extraction and back extraction. Concentration gradients limited by diffusion rate must be considered that is, equilibrium with homogenous concentrations of analyte does not describe this system. 

Analytical separation of several organics from water by PVC polymer is feasible. A solvent extraction model describes the separation dynamics and pH dependence. Selectivity via pH control of the extraction step and preconcentration of analyte can be accomplished. These results suggest that other polymer solvent extraction schemes can be developed by using this approach. The flow-through amperometric technique provides a well-suited detector component for the technique. 

Fig. 9.58 a Differential absorption spectra (visible and near-infrared) obtained upon femtosecond flash photolysis (420 nm-150 nJ) of 22a in argon saturated THF with several time delays between 0 and 3000 ps at room temperature, b Time profiles at 640 and 1000 nm reflecting the charge-separation dynamics... 

With the charge-separation dynamics-based on the decay rates resulting from the time profiles of the Cgo it-radical anion and ZnP cation (Fig. 9.58b) - in hands... 

The charge-separation dynamics as deduced from the decays of the Fc radical cation and the C o radical anion characteristics as a function of donor-acceptor distance (Fig. 9.65) yielded a linear relationship. From the slope [1 was determined... 

In the case of phase-separation dynamics, the non-linear terms become increasingly important in the course of time. In contrast, for phase-dissolution kinetics, the non-linear terms are most important in the beginning and their importance declines with progressing dissolution. 

Onfelt, B., Lincoln, P., Norden, B., Baskin, J. S., and Zewail, H. (2000) Femtosecond linear dichroism of DNA-interacting chromophores solvation and charge separation dynamics of [Ru(phen)2dppz]+2 systems, Proc. Natl. Acad. Sci. USA 97, 5708-5713. 

Phase-Separation Dynamics of Aqueous Hydrosypropyl Cellulose Solutions... 

KYUETAL. Phase-Separation Dynamics of Cellulose Si utions... 

The effects of chain length of added (attractive or repulsive) block copolymer on the phase separation dynamics of immiscible polymer blends are summarized... 

Theory on Phase Separation Dynamics and Morphology Evolution... 

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