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residence time

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residence time [′rez·ə·dəns ‚tīm]
(chemical engineering)
The average length of time a particle of reactant spends within a process vessel or in contact with a catalyst.
(nucleonics)
The time during which radioactive material remains in the atmosphere following the detonation of a nuclear explosive; it is usually expressed as a half-time, since the time for all material to leave the atmosphere is not well known.


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To design a TPB reactor for a chemical process, knowledge about its residence time distribution is very important.
We concluded high nitrogen residence time was the key mechanism driving the significantly higher plant nitrogen pool and the high productivity of that species," he added.
ANOVA revealed that increasing the extruder feed rate increased extruder torque, die pressure and the film's Young's Modulus, but decreased extruder mean residence time and the Hunter a* and b* color values of the film.
 
 
 
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