Instabilities,bifurcations and fluctuations in chemical systems : L. E. Reichl and W. C. Schieve University of Texas Press, 1982, xi+427 pp, $35.00 |
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Authors: | Hans G. Othmer |
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Affiliation: | Department of Mathematics University of Utah Salt Lake City, Utah, USA |
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Abstract: | The occupancy principle and the mean-transit-time theorem are derived for the passage of a tracer through a system that can be described by a general pool model. It is proved, using matrix theory, that if (and only if) tracer entering the system labels equally all tracee fluxes into the system, then the integral of the tracer concentration is the same in all the pools. It is also proved that if, in addition, all flow out of the system is through the observation point, the first moment of the tracer concentration at the observation point can be used to calculate the total amount of trace in the system. The necessity of this condition is analyzed. Examples are given of models in which the occupancy principle and the mean-transit-time theorem hold or do not hold. |
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