decay rate


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Related to decay rate: radioactive decay rate

decay rate

[di′kā ‚rāt]
(nuclear physics)
The time rate of disintegration of radioactive material, generally accompanied by emission of particles or gamma radiation.

decay rate

1. At a given frequency, the rate at which the sound level in a room decreases after a source stops emitting sound; expressed in decibels per second (dB/s).
2. Of sound waves in an enclosed space, the rate at which the sound-pressure level of reverberation decreases; usually expressed in decibels per second.
3. Of a vibrating mechanical system, the rate at which some stated characteristic (such as the amplitude of vibration) decreases with time.
References in periodicals archive ?
POLMAN, Decay rates of inverses of banded M-matrices that are near to Toeplitz matrices, Linear Algebra Appl., 109 (1988), pp.
The differential decay rate of [B.sub.c] [right arrow] [D.sub.q'][l.sup.+][l.sup.-] for any spin direction [[??].sup.-] of the [l.sup.-] can be written in the following form:
Similar to the proof of [20], the decay rate of the norm of gradient can now be estimated.
The effect of the number of dry-wet cycles on the decay rate is shown in Table 2.
Differential nuclear decay rate is simply described by the rate equation dN(t)/dt = -N(t)[lambda]'.
Using the corrected formaldehyde emission rate decay rates described above, I used the same probabilistic modeling analysis and input parameters that the CDC used to recalculate a range of formaldehyde concentrations in residential indoor air using a Monte Carlo simulation with 100,000 realizations using random combinations of the input parameters.
For FSC, we used the lower and upper 95% CI of decay rate (114.57 and 173.65) and recalculated population size.
When the parameter is 100-100, 50 mg/L has the lowest absorbance decay rate, meaning the lowest ability to decompose high concentration methylene blue.
Divided by velocity decay rate in streamwise direction: (I) core region or potential flow zone, (II) transition zone, and (III) full development zone.
where m, d, and [z.sub.0] are the slope, T-R distance in mm, and decay rate at zero interception distance, respectively.
Takacs, "A new interpretation of endogenous respiration profiles for the evaluation of the endogenous decay rate of heterotrophic biomass in activated sludge," Water Research, vol.