'ote To· Hold Unloft 80ard Election· Agai~ . . '. ' , ': TJte SUI Union Board voted Tuesd:ly night to recall the March All· C!lJIlpUS Union Board election because the name of one of the candi· da~es was omitted when the ballots were printed.· • • ~h:n Newsome, A2, Des Moines, was not on thE' h!,lllJlt jn the 21 ,election. the new election wiJl be on April l"and 18. Only students ill the Col. le...

Characteristic times for transport processes in biological systems may be evaluated as mean transit times (MTTs) (for transit states) or mean residence times (MRT) (for steady states). It is shown in a general framework of a (linear) reaction–diffusion–convection equation that these two times are related. Analytical formulas are also derived to calculate moments of exit time distribution using ...

Quantitative knowledge of stabilizationand decomposition processes is necessary to understand, assess and predict effects of land use changes on storage and stability of soil organic carbon (soil C) in the tropics. Although it is well documented that different soil types have different soil C stocks, it is presently unknown how different soil types affect the stability of recently formed soil C...

BACKGROUND AND AIMS Leaf longevity is controlled by the light gradient in the canopy and also by the nitrogen (N) sink strength in the plant. Stand density may influence leaf dynamics through its effects on light gradient and on plant growth and reproduction. This study tests the hypothesis that the control by the light gradient is manifested more in the vegetative period, whereas the opposite ...

This paper examines how the combination of simulated discharge and mean catchment residence time (MRT) may be used to subsume flow path process complexity and provide a simple, scalable evaluative data source for water quantity-quality based conceptual models at the catchment scale. A simple Monte Carlo framework is used to evaluate the identifiability of parameters, and how values of mean resi...

The method of analysis of the first temporal moment (mean residence time) of tracer return data was utilized to investigate the swept volume and fluid velocity between pairs of injection and production wells in the Dixie Valley geothermal field. Calculations were made using a spreadsheet program available from the Idaho National Laboratory. Jointly sponsored industry–government research at the ...