So some of the hydrocarbons evaporate, and the concentrations of the various compounds change.
Ionic regulation is the maintenance of the concentrations of the various ions in the body fluids relative to one another.
This was more difficult than it sounds, since the relative concentrations of the various compounds that correspond to a particular odour can vary from one sample to another.
The pH and concentrations of the various fermentation acids for silages made with the least mature forage (GS 69) were typical of acetic acid dominated fermentation.
The performance criterion (a higher value to indicate better performance) may be any convex function of the concentrations of the various species.
Since the constant K1 or K2 is the most useful simple description of the equilibrium conditions of an ion-exchange reaction (and knowledge of its value permits calculation of the concentrations of the various substances in equilibrium under specified conditions), determinations of K values are fundamental steps in the study of ion-exchange reactions.
The rate of diffusion through the unstirred layer is determined by the thickness of the layer and the gradient in concentrations of the various elements of the transport system from the lumen of the intestine to the cell membrane.
Least mean squares linear material decomposition was used to calculate the concentrations of contrast agents in the aorta, renal cortex, renal medulla and renal pelvis.Using reference vials with known concentrations of materials, we computed molar concentrations of the various contrast agents during each phase of CT scanning.
Dynamic macroscopic mass species and energy balances are derived to calculate the dynamic evolution of the concentrations of the various molecular species as well as of temperature profiles and heat removal in the two loop reactors.
In the hydrogenolysis experiments the selectivity was the ratio of isobutane to butane in the product and, in alkane exchange, the concentrations of the various exchanged species, δ1, δ2, δ3 … provide the selectivity data.
The equilibrium constant (Ks′) for this reaction (the mathematical quantity that expresses the relationships between the concentrations of the various species present at equilibrium) would normally be given by the equation Ks′ = [SH2+] [S−]/[SH]2, in which the square brackets denote the concentrations of the species within the brackets.
