Efficiency
Efficiency may refer to:
In science and technology
Efficiency (statistics), a count of desirability of an estimator
Algorithmic efficiency, optimizing the speed and memory requirements of a computer program
Efficiency factor, in data communications
In economics
Economic efficiency, a general term, capturing the amount of waste or other undesirable features
Financial market efficiency, how efficient is the trading going on the financial markets
Pareto efficiency, making one individual better off, without making any other individual worse off
Kaldor-Hicks efficiency, like a less stringent Pareto efficiency
Allocative efficiency, an optimal distribution of goods
Efficiency wages, paying workers more than the market rate for increased productivity
Business efficiency, expenses as a percentage of revenue, etc.
Efficiency Movement, of the Progressive Era (1890–1932), advocated efficiency in the economy, society and government
In physics
Efficient energy use, useful work per quantity of energy
Energy conversion efficiency, desired energy output per energy input
Energy conservation, reducing the use of energy
Electrical efficiency, useful power output per electrical power consumed
Fuel efficiency, converting energy in fuel to kinetic energy or work
Specific impulse, in propulsion systems, a measure of fuel efficiency
Lighting efficiency, visible light from a light source per unit of energy, in lumens per watt
Mechanical efficiency, the effectiveness of a simple machine, mechanical advantage over ideal mechanical advantage
In thermodynamics:
Exergy efficiency, measure of second law thermodynamic loss
Thermal efficiency, useful work per the higher heating value of the fuel
Radiation efficiency, ratio of radiated power to power absorbed at the terminals of an antenna
Volumetric efficiency, in internal combustion engine design
Lift-to-drag ratio
Faraday Efficiency, electrolysis
Quantum efficiency, a measure of sensitivity of a photosensitive device
Grating efficiency, a generalization of the reflectance of a mirror, extended to a diffraction grating
Other uses
Material efficiency, compares material requirements between construction projects or physical processes
Efficient (horse), winner of the 2007 Melbourne Cup
Studio apartment, a one-room apartment, also called an efficiency apartment
Textual efficiency, the content density of a message
Translation
The word "Efficiency" occurs as such in the following languages: English, Simple English.
Translation(s) in other languages: Catalan: Eficiència, German: Effizienz, Spanish: Eficiencia, Indonesian: Efisiensi, Italian: Efficienza, Hebrew: נצילות, Russian: Эффективность, Turkish: Verimlilik, Ukrainian: Ефективність.
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