Sentence examples for tracer time from inspiring English sources

Dead zone tracer time series are determined by an aggregate of upstream transport and individual dead zone residence time distributions (RTDs).

In case of AIFs, where the blood tracer activity concentration is recorded with an external device, the measured activity concentration is distorted relative to the activity signal arriving in the brain by two effects: a tracer time delay and a broadening of the peak of the AIF (bolus dispersion).

Results have shown a decreasing trend of α from 0.09 to 0.04 h−1 after about 1.2 m of filtration for the investigated sand, whereas new solutions provide two scale-invariant tracer coefficients of rate of tracer mass-transfer (0.004 ± 0.005 h−1) and of tracer time delay (1.19 ± 0.01).

It is possible to quantitate changes in tracer uptake in different metabolic pools using kinetic metabolic compartment modeling with dynamic scans and information on tracer time activity curves and analysis of possible radioactive metabolites in the arterial blood pool ("input function") by blood drawn from arterial catheters or microdialysis [27]-[29 [27]-[29

The PFG NMR data were compared with the RTD obtained using the conventional tracer time-of-flight transient response method.

These characteristics usually are inferred from the analysis of natural-tracer time series, typically relying on a stationary input output relationship.

These phenomena may lead to non-Fickian dispersion characterized by early tracer arrival time, late-time tailing on the breakthrough curves and potential scale effect on transport processes.

Parametric studies demonstrated that, under the considered operation conditions, the influence of tracer injection time period on the predicted solid residence times was nearly ignorable.

Conservative tracer breakthrough time in the RAPS basal effluent is approximately inversely related to throughflow rate.

Tracer residence time distribution (RTD) is used to determine dispersion coefficients.

The percentage of intact tracer over time is presented in Fig. 6.