relaxation time


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relaxation time

(ree-laks-ay -shŏn) The time taken for the velocity of an object in a multiple-body system to become similar to the velocity of others in that system, and hence for the total system to become smooth and regular. See dynamical relaxation.

relaxation time

[‚rē‚lak′sā·shən ‚tīm]
(physics)
For many physical systems undergoing relaxation, a time τ such that the displacement of a quantity from its equilibrium value at any instant of time t is the exponential of -t /τ.
(solid-state physics)
The travel time of an electron in a metal before it is scattered and loses its momentum.
References in periodicals archive ?
The [alpha] process is associated with the amorphous fraction, originated from the segmental motions, and the temperature dependent relaxation time follows the Vogel-Fulcher-Tammann form, with activation energies as high as 195 kJ [mol.
T2 relaxation times generated from MR images allow for analysis of the biochemical and molecular composition of cartilage," said Wilson Lin, B.
For example, if a dc electric field is applied to a polarizable dielectric and then the field is suddenly turned off, then the dipoles will relax over a characteristic relaxation time into a more random state.
Omitting these animals for statistical analyses, the relaxation time of the rest of the animals treated with clove oil decreased with an increase in concentration (855 [+ or -] 287 sec at 0.
In contrast, the cured soy flour/PAE resin sample was best fit by a single exponential, which had a significantly shorter relaxation time.
The relaxation time indicates the time required for the vapor and the liquid phases to reach the same velocity or equilibrium in momentum.
The iron that accumulates in the liver is paramagnetic and interacts with adjacent hydrogen nuclei to cause susceptibilityinduced relaxation owing to shortened proton relaxation times.
It accounts for a structural relaxation time distribution with a stretched-exponential parameter (or, nonexponentiality parameter).
One FPB member, a textile company owner, said: 'In my workplace, where staff have set breaks, I am unconvinced smoking is the best way to use relaxation time.
Schools become over-crowded, housing more expensive and relaxation time more difficult, making it harder to attract top talent.
They're going to have to earn their relaxation time in the sauna and the hot tub - Big Brother is still going to be evil.