An approximation for the decay heat curve valid from 10 seconds to 100 days after shutdown is. where is the decay power, is the reactor power before shutdown, is the time since reactor startup and is the time of reactor shutdown mesured from the time of startup (in seconds).
Freebase(0.00 / 0 votes)Rate this definition: Quail. Quail is a collective name for several genera of mid-sized birds generally considered in the order Galliformes. Old World quail are found in the family Phasianidae, and New World quail are found in the family Odontophoridae.
cactus noun [C]. âº any of a âtype of âplant that âgrows in the âdesert, having âthick âstems for âstoring âwater and usually spines (= âsharp âpoints). (Definition of cactus from the Cambridge Academic Content Dictionary Â© Cambridge University Press). any of many âtypes of âdesert âplant usually with âsharp âspines and âthick âstems for âstoring âwater. (Definition of cactus from the Cambridge Advanced Learnerâs Dictionary & Thesaurus Â© Cambridge University Press).