Efficiency
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2008-07-13T08:39:35Z
Kdakin
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/* move algorithmic efficiency to alphabetic position */
{{wiktionarypar|efficiency}}
'''Efficiency''' as a technical term may refer to:
* [[Algorithmic efficiency]], optimizing the speed and memory requirements of a computer program
* [[Energy efficiency]], 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
** [[Volumetric efficiency]], in internal combustion engine design
** [[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
** [[Thermodynamic efficiency]], useful work per change in heat
*** [[Exergy efficiency]], measure of 2nd-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
* [[Efficiency (aerodynamics)]], for fixed wing aircraft the Lift-to-drag ratio
* [[Efficiency (economics)]], a general term, to capture the amount of waste or other undesirable features
** [[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
** The optimisation of a [[social welfare function]]
** [[Efficiency wages]], paying workers more than the market rate for increased productivity
* [[Efficiency (statistics)]], a measure of desirability of an estimator
* [[Efficiency ratio]], expenses as a percentage of revenue, etc.
* [[Efficiency Movement]], of the Progressive Era 1890-1932, advocated efficiency in the economy, society and government
* [[Material efficiency]], compares material requirements between construction projects or physical processes
* [[Faraday Efficiency]], electrolysis
* [[Textual efficiency]], density of a message
* [[Quantum efficiency]], a measure of sensitivity of a photosensitive device: the percentage of photons hitting the photoreactive surface that will produce an electron–hole pair
* [[Efficient (horse)]], winner of the 2007 Melbourne Cup.
* [[Efficiency apartment]], a one room apartment, also called a Studio apartment
==See also==
*[[Inefficiency]]
{{disambig}}
[[es:Eficiencia]]
[[it:Efficienza]]
[[he:נצילות]]
[[simple:Efficiency]]