Look up: efficiency

1. 
   Efficiency
   Reflects the amount of wasted energy.
   Found on http://www.nytimes.com/library/financial
   
   
2. 
   Efficiency
   A ratio of output (or performance or success) to the input(s) (or costs) involved, over a specified time and in a specified context.
   Found on http://www.pestmanagement.co.uk/lib/glos
   
   
3. 
   efficiency
   [n] - the ratio of the output to the input of any system 2. [n] - skillfulness in avoiding wasted time and effort
   Found on http://www.webdictionary.co.uk/definitio
   
   
4. 
   Efficiency
   [pronounce: ef-fish-en-see] A way of saying how much energy something wastes.
   Found on http://www.longman.co.uk/tt_secsci/resou
   
   
5. 
   Efficiency
   The acoustic power delivered for a given electrical input. Often expressed as decibels/watt/meter (dB/w/m). ESL - Abbreviation for electrostatic loudspeaker.
   Found on http://www.testing1212.co.uk/a.htm
   
   
6. 
   Efficiency
   No machine can be 100% efficient. Efficiency is defined as 'Useful Energy Out' / 'Total Energy In'. It is a fraction, sometimes written as a percentage. For example, if an electric motor in a winch consumes 2000J of energy per second, and does 420J of useful work per second, then the efficiency of the winch is, eff = 420/2000 = 0.21 = 21%. Note that efficiency has no units. Note that since 2000J per second is the same as 2000W power, you can do the efficiency calculations with power too
   Found on http://www.users.zetnet.co.uk/computing/
   
   
7. 
   Efficiency
   With loudspeakers, efficiency is generally the Sound Pressure Level (measured in Decibels) produced from a given watt of an amplifiers signal (dB's per Watt). A very efficient speaker can have a bigger influence on the SPL's produced by a system than the level of watts produced by the amplifier. A good rule of thumb is that a speaker that 3 dB's mo...
   Found on http://www.traditionalmusic.co.uk/music%
   
   
8. 
   Efficiency
   (see also Cost efficiency)
   Found on http://www.agbnielsen.co.uk/agb/index.ph
   
   
9. 
   Efficiency
   A measure of how well a machine changes energy into useful energy.ObjectEfficiencyDry plate clutch (transmission efficiency)0.99Driveshaft joints (transmission efficiency)0.99Straight gears (transmission efficiency)0.95 to 0.98 See also: Energy.
   Found on http://www.diracdelta.co.uk/science/sour
   
   
10. 
    Efficiency
    The ratio of work done or energy developed by a machine or engine, to the energy supplied to it.
    Found on http://www.chemicalglossary.net/definiti
    
    
11. 
    Efficiency
    Swimming pool chemistry: The power to produce an effect. Chlorine's efficacy is affected by many factors, including the sun, water balance and the water's chlorine demand.
    Found on http://www.1st-direct.com/acatalog/Chemi
    
    
12. 
    Efficiency
    The ratio of total output power to total input power, normally expressed as a percentage
    Found on http://www.albacom.co.uk/Web/Site/defenc
    
    
13. 
    Efficiency
    The method of describing how much of the power delivered to a system is available for use by the controlled device. For example, a motor/gearbox having a full working rating of 100A but requiring 10A to turn the gearbox would be said to be 90% efficient.
    Found on http://www.sprint-electric.com/glossary.
    
    
14. 
    efficiency
    efficient use of resources Category: Management in the public and private sector • the extent to which software performs its intended functions with a minimum consumption of computing resources Category: Automation (includes telecommunications and computers) • the ratio between the cutting power and the power consumption of the machine tool Category: Iron and steel indus...
    Found on http://www.mijnwoordenboek.nl/definition
    
    
15. 
    Efficiency
    The ratio of the useful energy delivered by a dynamic system (such as a machine, engine or motor) to the energy supplied to it over the same period or cycle of operation. The ratio is usually determined under specific test conditions.
    Found on http://www.neo.ne.gov/statshtml/glossary
    
    
16. 
    Efficiency
    Definition (advanced level) The energy put into a system, divided by the energy got out of it. Even the most efficient machines seldom have efficiencies better than about 0.8.
    Found on http://thesaurus.maths.org/mmkb/entry.ht
    
    
17. 
    efficiency
    1. The quality of being efficient or producing an effect or effects; efficient power; effectual agency. 'The manner of this divine efficiency being far above us.' (Hooker) ... 2. <mechanics> The ratio of useful work to energy expended. Efficiency of a heat engine, the ratio of the work done an engine, to the work due to the heat supplied to it ...
    Found on http://www.mondofacto.com/facts/dictiona
    
    
18. 
    efficiency
    noun skillfulness in avoiding wasted time and effort; `she did the work with great efficiency`
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
19. 
    efficiency
    noun the ratio of the output to the input of any system
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
20. 
    efficiency
    Has several meanings. Sometimes used in a theoretical context as a synonym for Pareto efficiency. Below is the econometric/statistical definition. Efficiency is a criterion by which to compare unbiased estimators. For scalar parameters, one estimator is said to be more efficient than another if the first has smaller variance. For multivariate estim...
    Found on http://www.econterms.com/glossary.cgi?qu
    
    
21. 
    Efficiency
    `Efficiency` as a technical term may refer to: * 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 ...
    Found on http://en.wikipedia.org/wiki/Efficiency
    
    
22. 
    Efficiency
    The degree and speed with which a market accurately incorporates information into prices.
    Found on http://www.duke.edu/~charvey/Classes/wpg
    
    
23. 
    Efficiency
    • (n.) The quality of being efficient or producing an effect or effects; efficient power; effectual agency. • (n.) The ratio of useful work to energy expended.
    Found on http://thinkexist.com/dictionary/meaning
    
    
24. 
    efficiency
    (from the article `automobile`) The efficiency of an automobile engine is highest when the load on the engine is high and the throttle is nearly wide open. At moderate speeds on ... There are two features of the concentration profile important in determining the efficiency of a column and its subsequent ability to separate or ... ......
    Found on http://www.britannica.com/eb/a-z/e/12
    
    
25. 
    efficiency
    The amount of power output by a fluid power system compared to the amount of power input.
    Found on http://www.toolingu.com/definition-57034