four-factor formula

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four-factor formula [¦fȯr ¦fak·tər ′fȯr·myə·lə]

(nucleonics)

The principle that the multiplication factor of a thermal reactor with no leakage is the product of the average number of fast neutrons emitted when a nucleus in the fuel material captures a thermal neutron, the fast fission factor, the fraction of neutrons which are not captured while being slowed down, and the number of thermal neutrons absorbed in the fuel divided by the total number of neutrons absorbed in the fuel and the moderator.

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No references found			Iowa, for example, uses only a single factor (sales), while New Mexico uses the prototypical three-factor formula and, in the case of manufacturers, allows for the use of a four-factor formula by double weighting the sales factor. Justice in New Mexico - the Conoco and Intel cases by Frankel, Paul H. / Tax Executive			Four Hundred Four Hundred, Council of the Four Lakes four laws of black hole mechanics Four Mile Creek State Park Four Noble Truths Four Thirds system four-address four-ball tester Four-Bar Linkage four-by-four four-centered arch four-centered pointed arch four-channel sound system four-color printing Four-Color Problem four-color process four-color separation process four-colour glossies four-colour map problem four-course radio range station four-crib barn four-current density Four-Cycle Engine four-degree calorie four-factor formula four-force four-frequency diplex telegraphy four-group Four-H clubs Four-Horned Antelope four-hundred-day clock four-in-hand four-layer device four-layer diode four-layer transistor four-leaf four-leaved flower four-level laser four-limbed core four-o'clock four-over-four four-part vault four-phase modulation four-pi counter four-piece butt match four-piece butt matching four-piece set four-plus-one address four-point four-point bearing			four-crib barn Four-current four-current density four-cycle Four-Cycle Engine Four-cylinder Four-day weekend four-deal bridge four-degree calorie Four-Digit Year four-dimensional four-dimensional four-dimensional four-dimensional four-dimensional Four-Dimensional Data Assimilation Four-dimensional painting Four-dimensional space Four-dimensional space Four-dimensional sphere Four-Dimensional Trellis Encoder Four-Dimensional Variational Data Assimilation four-door Four-Electrode Impedance Measurements Four-Engine Aircraft four-engined four-eyed four-eyed fish four-eyed fish four-eyes four-factor formula Four-field crop rotation Four-field crop rotation Four-field system Four-field system four-figure four-flush four-flushed four-flusher four-flushers four-flushes four-flushing four-fold four-footed four-footed butterfly Four-force four-four time four-frequency diplex telegraphy four-group Four-H Club Four-H clubs Four-H Youth Development Four-handed four-handed dentistry four-handed dentistry four-handed dentistry Four-handed ones four-hitter Four-horned

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