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decay rate

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.02 sec.
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.
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Using methodologies based on counting the nests constructed by gorillas and the decay rates of these temporary structures, the researchers calculated that the study area (measuring 1,029 square kilometers, or 379 square miles, in size) contained an estimated population of 5,042 gorillas, more in fact than previous estimates for the site.
Human activities threaten vulnerable Congo gorillas by Asian News International
High-risk patients, such as those with increased decay rates and those living in communities where the water supply has a low fluoride concentration, may benefit from exposure to these products.
Systemic fluoride by Borso, Heather / Access
Solutions of either ascorbic acid or the ascorbyl-2-phosphate analogs (at 10 mM) in phosphate-buffered saline (PBS) were relatively stable as shown by their decay rates and their ability to stimulate collagen synthesis even after nine days in solution prior to testing their effects on cultured cells.
Regulation of collagen synthesis in human dermal fibroblasts by the ... by Life Extension
 
 
 
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