Q value

From Wikipedia, the free encyclopedia

Q value, Q factor, and Q score may refer to:

• Q factor or Q in resonant systems, a measurement of the effect of resistance to oscillation

• Fusion energy gain factor, Q value or Q, the ratio of fusion power produced in a reactor to the power required to maintain the plasma in steady state

• Q values in chemistry, the differences of energies of the parent nuclides to the daughter nuclides

• Q value in statistics, the minimum false discovery rate at which the test may be called significant

• Q Factor (Bicycles) in bicycles, the width between where the pedals attach to the cranks

• Q Score, in marketing, way to measure the familiarity of an item

• Quality factor (video compression) (Xvid_Qf) in video compression, a measure to indiciate the amount of memory/storage used per pixel (and per frame) in a video