[Dynamics of competitive sorption of metabolites from blood by carbon sorbents]. / Dinamika zavisimoi sorbtsii metabolitov iz krovi uglerodymi sorbentami

Two models of blood metabolites competitive sorption by carbon sorbents in small-size sorption column were considered: spouting bed model and a model of ideal mixing of solid and liquid phases. When the sorbilities of metabolites are very different the task of dynamics of competitive sorption comes to the system of differential equations with small parameters of different orders about derivatives. The zero degree of approximations of the system solutions was received when considering the sorption isotherm as Langmuir's isotherm. In both models a possibility of selective sorption was shown.

[Frequency relations of capacitance and conductance of the system electrolyte--membrane--electrolyte in a model framework]. / Chastotnaia zavisimost' emkosti i provodimosti sistemy élektrolit--membrana--élektrolit v ramkakh nekotoroi modeli

An electrodiffusion model of immediate permeability of ions through the lipid membrane was considered. The model suggests the existence of finite immovable layers of the electrolyte near the membrane. A technique is given for linearization and obtaining analytical solutions of the time-dependent electrodiffusion equations for one ion species. The expression for admittence of the system was obtained. The model allowed to obtain the curves of c (omega) and g (omega) which agreed with the empiric ones.