Erythrocyte deformability characteristics were assessed by passing red cell suspensions through Nuclepore polycarbonate filters having pore diameters of 3 ym. with pore lengths of 12 ym. During flow through these filters, at a constant flow rate of 2.17 cc/min., the pressure drop across the filter was monitored as a function of time. This measurement ...

In this work, the approach proposed by Glueckauf is used to study the properties of the adsorption of a dilute component from a binary gas stream flowing through a bed packed with 13X zeolite. The numerical solution to the unsteady state heat- and mass-transfer equations describing the process is readily applicable to the design of a carbon dioxide ...

This work investigates the transient behavior of a chemically-reacting system inside a porous catalyst particle. For simplicity, the associated reaction rate is assumed to be first order exhibiting an Arrhenius temperature dependence. Two separate sets of boundary conditions are imposed: equilibrium boundary conditions; and Newtonian mass and heat ...

Numerical solutions are obtained for the unsteady-state oxygen release process from hemoglobin layers of thicknesses and concentrations typical of the microcirculation. A modification of the CrankNicolson scheme is used to solve the coupled, non-linear, parabolic partial differential equations in layers of thicknesses 1.6 u, and 6. u. Two types of ...

To evaluate the rheological behavior of certain hemoglobinopathies with respect to oxygen tension, the concept of optimum hematocrit was employed. The optimum hematocrit is defined as the hematocrit at which the erythrocyte flow rate is the greatest. It therefore represents the optimum oxygen carrying capacity of blood. Using a Weissenberg Rheogoniometer ...

Methylotrophic bacteria which assimilate carbon via the Ribulose Monophosphate Pathway are bioenergetically superior to other methylotrophs. The dehydrogenases which catalyze the oxidation of formaldehyde to formate and formate to CO2 in RMP bacteria produce much of the ATP required for biosynthesis. A strain, designated T15, has been isolated on the ...

The purpose of this investigation was to develop an apparatus for determining the partition coefficients of the esters used in single well tracer tests. The single well tracer test has been used since 1968 to determine the residual oil saturations in oil reservoirs. Evaluation of the residual oil saturation requires knowledge of the partition coefficient ...

In this work the application of two numerical methods to the solution of the partial differential equations of diffusion and chemical reaction is described. The following systems were considered. a) When the ends of a catalytic wire are held adiabatic, the existence of steady state temperature and composition distribution in the form of standing waves ...

Deuterium exchange with benzene and isomerization/ deuterium exchange of n-butenes were used as test reactions to investigate both the concentration and chemical nature of active sites on two kinds of fibrous alumina catalysts. The results of this investigation are comparable to results reported in the literature describing similar reactions studied ...

The hard sphere expansion conformal solution theory is a very useful technique to predict the thermodynamic properties of a mixture. When we apply this theory, an important problem is the method of determining the effective diameters. Hwu developed a diameter evaluation method using pure component P-V-T data represented by accurate equation of state. ...