For example, a compact fluorescent light bulb is more energy efficient than a regular incandescent light bulb because the former requires less electrical energy to generate the same amount of light as the latter. Judith is making more money for her company. Found insideMost natural communities, looked at in parts, are not efficient at all. ... comes not from its efficiency—its ability, to use the dictionary definition, ... Efficiency entails a managerial focus on minimizing the time required to complete individual tasks as well as that required to complete the whole operation or process of production and distribution. For example, light emitting diode (LEDs) and compact fluorescent lights (CFLs) have revolutionized energy efficiency in lighting and use far less . Can Tarzan of the Apes Survive in a Post-Colonial World? Found insideFor the same God is the supreme form and the first efficient cause and the end or ultimate reason ... Euclid«s definition of a straight line is given on p. We show here . machine. The definition for energy efficiency is how much energy is produced in a process versus the amount of energy given to the process. Found inside – Page 899The management is the subjects of Business Efficiency and usually more ... which added in no small definition of science , as organized or sysdegree to the ... In other words, anything which takes input and produces output can be measured in order to see how well it is using the work put into it. Tap card to see definition . Isentropic efficiency is a measure of the energy loss in a system. ; Predictability and standardization are found in repetitive and . Efficiency and effectiveness. Found insideThe increased pressure for efficiency coupled with the faster rate of change and the ... In 1959 Charles Lindblom, who was professor of political science ... The concept of efficiency can be applied to both local and global scales in a network. : 2. using little electricity, gas, etc. However, if Mary Smith produces 200 faulty valves each week compared to John Doe’s 20, John Doe is more efficient – John Doe ends each week with 980 valves of good quality that can be sold compared to Mary Smith’s 900. Hence the heat engine efficiency is: So for = , efficiency will be 100% but, in actual, this is not possible because there will be some loss of energy in the system. These bulbs, although very easy to make cheaply, are incredibly inefficient. Found inside – Page 33Eflured into a hasty trial of ill - digested " efficiency and scientific ... is that they did not understand its true meaning . essary movements . The formula is: The Greek letter eta (which looks like 'n . How to use efficiency in a sentence. Process (science) Definition from Encyclopedia Dictionaries & Glossaries. First, energy efficiency on a personal level means using less energy in our daily lives. The efficiency formula is: (Work output ÷ Work input) x 100% = Efficiency. Calculate cost per mile by comparing fuel cost and consumption data. - Definition and Significance in Nature, First Law of Thermodynamics: Law of Conservation of Energy, Second Law of Thermodynamics: Entropy and Systems, Resources and Reserves: Definitions & Examples, Renewable & Non-Renewable Resources: Definition & Differences, What is Chemical Energy? Efficiency is a measure of how much work or energy is conserved in a process. Efficiency Unit means a Unit without a separately enclosed Bedroom designed principally for use by a single person. However, she does all this over the telephone, never leaving her desk. Also, many plants don't have third shift workers. Maybe you have taken shorter showers or turned off lights when you're not using them. An estimation of the solids, therefore, furnishes an important clue to the functional efficiency of the kidneys. This is the amount of time the machine can be producing. What is the fuel efficiency of the vehicle you or someone you know drives? Productivity: is commonly measured as output during comparable periods – production per minute, hour, day, week, etc. New styles of light bulb that have come on the scene within the last ten years or so include compact fluorescent light bulbs (CFLs) and LEDs (which stands for light-emitting diodes). Hence, for every engine, there is a limit for . They do not produce nearly as much heat as incandescent bulbs and are, therefore, far more efficient. The production of the desired effects or results with minimum waste of time, effort, or skill. In network science, the efficiency of a network is a measure of how efficiently it exchanges information. Simply put, specific impulse is a measure of how much push (thrust) accumulates as you burn the fuel. CFLs have become much cheaper in recent years, making them an obvious choice if many bulbs are being purchased. Found inside – Page 640The value of irrigation efficiency and its definition are important to the societal views of irrigated agriculture and its benefit in supplying the high ... Energy efficiency is the practice of using less energy to provide the same amount of useful output from a service (such as heating water, lighting, or cooling a fridge). Efficiency here implies technical efficiency and economic efficiency in the use of scarce resources for producing a given level of output. Reproductive System Functions and Anatomy, TExES Principal Exam Redesign (068 vs. 268), Addressing Cultural Diversity in Distance Learning, The House of the Seven Gables: Themes & Analysis, Animal Lesson for Kids: Definition & Characteristics, Polar Coordinates: Definition, Equation & Examples, A Newspaper Story by O. 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For example, languages differ greatly in the number of syllables they allow, resulting in large variation in the Shannon information per syllable. The state or quality of being efficient, or able to accomplish something with the least waste of time and effort; competency in performance. In this lesson, we will explore allocative efficiency, including its definition and how it works for the benefit of society. ( A2 / A1) × 100, where A1 is the lower trophic level and A2 the higher trophic level. work efficiency synonyms, work efficiency pronunciation, work efficiency translation, English dictionary definition of work efficiency. Definition of Efficiency Efficiency refers to the ability to produce maximum output from the given input with the least waste of time, effort, money, energy and raw materials. The intrinsic detection efficiency of any device operated in pulse mode is defined as the probability that a quantum of radiation incident on the detector will produce a recorded pulse. How much work is accomplished when a 5-kg weight is lifted through a distance of 1 meter? “Hispanic” vs. “Latino”: When To Use Each Term, Haunting Hooks: Scary Story Opener Writing Contest, The Most Surprisingly Serendipitous Words Of The Day, Get Enthralled With 11 Enticing -Esque Words. What does efficiency mean? FIRE UP YOUR VOCAB FOR A "RED" SYNONYMS QUIZ. Found inside – Page 110MHOST : An efficient finite element program for inelastic analysis of solids ... N88-11753 Concept definition study for recovery of tumbling satellites . Transducer efficiency is defined as the ratio of output power in the desired form to the total power input. . Found inside – Page 339Define “ Essence " and " Nature " . ... Is the view that an event is produced by “ efficient " causes ... Distinguish various kinds of efficient cause . In its simplest form, the difference between productivity and efficiency is the difference between quantity and quality. Efficiency is always a percentage and can never be 100% due . If John Doe Ltd. produces 1,000 valves each week with 100 employees and Mary Smith Inc. produces 1,100 valves each week with 100 workers, Mary Smith Inc. has clearly got superior productivity. curriculum-key-fact. Efficiency is very often confused with effectiveness.In general, efficiency is a measurable concept, quantitatively determined by the ratio of useful output to total useful input. Nevertheless, all natural languages allow their speakers to efficiently encode and transmit information. © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Perhaps you have chosen to ride a bike to certain places instead of hopping in the car. The Department of Energy is working with universities, businesses and the National Labs to develop new, energy-efficient technologies while . The process of science is the scientific method. His stories were constructed with ruthless narrative efficiency. This is the process of constructing an accurate, reliable, repeatable model of the real world, by scientists collectively working towards this goal over time. Learn more. ; Calculability is a focus on quantifiable objectives (counting things) rather than subjective ones (evaluation of quality). Is the college stage of our present educational system anywhere near its maximum possible efficiency? The ratio of the effective or useful output to the total input in any system. More specifically, you could say that it is the change in momentum per unit of mass for rocket fuels. By the adoption of scientific principles Hope-Jones has multiplied the efficiency of Swell boxes tenfold. It is one of the main factors when determining productivity – however, productivity focuses on quantity while efficiency is all about quality and eliminating wastefulness. It is usually the ratio of the power delivered by a mechanical system to the power supplied to it, and, because of friction, this efficiency is always less than one. It is the opposite of waste. The state or quality of being efficient, or able to accomplish something with the least waste of time and effort; competency in performance. “Effectiveness” vs. “Efficacy” vs. “Efficiency”: When To Use Each Word For The Best Results. Efficiency looks at what is currently being produced and compares that with what could be achieved with the existing consumption of resources, i.e. All other trademarks and copyrights are the property of their respective owners. The production of the desired products results in a high Faradic efficiency. Effectiveness is the simpler concept of being able to achieve a desired result, which can be expressed quantitatively but does not usually require more complicated mathematics than addition. What is Energy Efficiency?. The thermal efficiency, η th, represents the fraction of heat, Q H, that is converted to work.It is a dimensionless performance measure of a heat engine that uses thermal energy, such as a . The efficiency formula can be used in a variety of areas, such as to examine the efficiency of motors and in . One way to do this is to produce usable energy (electricity and fuel, primarily) more efficiently. Dictionary.com has the following definition for 'efficiency': "1. The system achieved the world's best LINPACK benchmark performance of 10.51 petaflops (quadrillion floating-point operations per second) with a computer efficiency ratio of 93.2%. PCR efficiency can be defined as the ratio of the number of target gene molecules at the end of a PCR cycle divided by the number of target molecules at the start of the same PCR cycle. “Epidemic” vs. “Pandemic” vs. “Endemic”: What Do These Terms Mean? Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. accomplishment of or ability to accomplish a job with a minimum expenditure of time and effort: The assembly line increased industry's efficiency. We will study about what it actually is and what formula is used to measure the efficiency of anything. Other articles where Efficiency is discussed: automobile: Transmission: The efficiency of an automobile engine is highest when the load on the engine is high and the throttle is nearly wide open. physics - the science of matter . An example of an industry trying to become more energy-efficient can be found in automobile manufacturers. When people try too hard to boost productivity, they may become less careful. Found inside – Page 40Generally, thermodynamics is defined by many as the science of energy (referring to ... system is usually followed by an appropriate efficiency definition ... energy: [ en´er-je ] power that may be translated into motion, overcoming resistance or causing a physical change; the ability to do work. Energy efficiency is a measure of how well a device transfers energy into the form we want.. What is a Sankey Diagram?. Jump to: General, Art, Business, Computing, Medicine, Miscellaneous, Religion, Science, Slang, Sports, Tech, Phrases. work efficiency synonyms, work efficiency pronunciation, work efficiency translation, English dictionary definition of work efficiency. Antonyms for efficiency. Effectiveness is the simpler concept of being able to achieve a desired result, which can be expressed quantitatively but does not usually require more complicated mathematics than addition. | Meaning, pronunciation, translations and examples Efficiency definition, the state or quality of being efficient, or able to accomplish something with the least waste of time and effort; competency in performance. Define work efficiency. Found inside – Page 281More importantly, different definition of the functions F and G in expression (2) ... To show the efficiency the proposed method for image decomposition and ... Found inside – Page 878PERFORMANCE AND EFFICIENCY OF A LARGE LIQUID SCINTILLATION COUNTER FOR THE ... energy) is represented by the figure of merit and an alternative definition. Asymptotic Efficiency and Asymptotic Variance . With limited ad budgets, every dollar counts and efficiency is at a premium. In science, two definitions exist that are very closely related. The net head H across the turbine is 5.5 m and the required power output is 125 kW. In this lesson, find out what is meant by energy efficiency, and discover how you can increase yours on a daily basis. Efficiency Unit means a Unit containing only one habitable room. Blood and War: The Hard Truth About ‘Boots on the Ground’, Fifty Years of Railway Life in England, Scotland and Ireland. Efficiency: For an unbiased estimator, efficiency indicates how much its precision is lower than the theoretical limit of precision provided by the Cramer-Rao inequality. Energy efficiency brings a variety of benefits: reducing greenhouse gas emissions, reducing demand for energy imports, and lowering our costs on a household and economy-wide level. A measure of effectiveness; specifically, the useful work output divided by the energy input in any system. Accomplishment of or ability to accomplish a job with a minimum expenditure of time and effort.". Dictionary.com has the following definition for ‘efficiency’: “1. Energy-efficient engines use less fuel to travel more miles. YouTube. Efficiency is defined as the ability to produce something with a minimum amount of effort. In other words, anything which takes input and produces output can be measured in order to see how well it is using the work put into it. Found inside – Page 52... of people (including people in organisations) and to the goals of science, ... associated with scientific research are emphasised in this definition. There’s this layer of data and efficiency that we’ve experienced as we’ve figured this all out that I don’t think we can walk away from in the future. ecological efficiency (trophic level assimilation efficiency) The ratio between the energy assimilated at one trophic level and that assimilated at the immediately preceding level, usually expressed as a percentage; i.e. The rate at which energy is transferred is called power and the amount of energy that is usefully transferred is called efficiency. Specific impulse is a measure of efficiency for rocket engines. Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021, Collins English Dictionary - Complete & Unabridged 2012 Digital Edition All Rights Reserved. How can efficiency be associated with quality? improving economic efficiency can involvereducing the costs of production per unit of output (improving technical or productefficiency), ive matching the supply of goods and services to those most desired by individuals (improving allocative efficiency), and/or removing barriers to innovation and flexibility (improving dynamic efficiency). This down time takes away from the productivity of the machine and also makes it less efficient. 18: Efficiency. They produce a lot of heat when they are in use, which means that some of the electricity being used to light the room is being wasted. The ability to do things flawlessly and without waste – the ability to do them well. When discussing energy efficiency in our daily lives, we're really talking about the first definition given above. This is because some work is lost due to friction. Published by Houghton Mifflin Company. 304 lessons With these actions in mind, it's easy to guess the definition of the phrase 'energy efficiency.' Found inside – Page 54The general understanding of the definition of energy efficiency has ... Papers were published in some famous magazines, such as Science (Cherfas 1991; ... a legendary stone of impenetrable hardness, Dictionary.com Unabridged The greater the output when compared to the input, the higher the energy efficiency. energy-efficient definition: 1. using little electricity, gas, etc. it is the ratio = W/Q H of the work done by the engine to the heat energy entering the system from the hot reservoir. Found inside – Page 55But I am also acutely aware that the blind belief in science and efficiency that emerged in the late nineteenth century had a sinister side. - Definition & Examples, What is Thermal Energy? Why Do “Left” And “Right” Mean Liberal And Conservative? getting more out of less. How to use efficient in a sentence. Many statisticians consider the minimum requirement for determining a useful estimator is for the estimator to be consistent, but given that there are generally several consistent estimators of a parameter, one must give consideration to other properties as well. 6.6.1 Faradic efficiency. 's' : ''}}. This would signify an increase in the energy efficiency of the engine. As a result of this statement, we define the thermal efficiency, η th, of any heat engine as the ratio of the work it does, W, to the heat input at the high temperature, Q H.. Efficient definition is - productive of desired effects; especially : capable of producing desired results with little or no waste (as of time or materials). In many processes, work or energy is lost, for example as waste heat or vibration. We can define heat engine efficiency as: =. Efficiency is a measure of how much work or energy is conserved in a process. See also lift/drag ratio. When a company’s efficiency improves, its costs are reduced and its competitiveness enhanced, as long as the focus is also on productivity. And increasingly smart navigation aids in the cockpit brought far greater precision and efficiency to route planning. Over-concentration on efficiency can undermine worker productivity to such an extent that they become too frightened of making mistakes and work at a snail’s pace to make sure things never go wrong. Found inside – Page 2The intermediate ground between psychometric criteria and social science modeling is ... The definition of efficiency that we use in this volume is broad, ... Found inside – Page 20... Great Britain: Parliament: House of Lords: Science and Technology Committee ... efficiency to achieve in carbon terms and has set itself a definition of ... It signifies a level of performance that describes a process that utilizes the minimum of inputs to create the greatest amounts of output, i.e. Found inside – Page 80Drawing on definition problems in irrigation efficiency and productivity, ... and scientific sense because 'lost water' may be recaptured downstream. (adjective) An example of efficient is a car that g. Jump to: General, Art, Business, Computing, Medicine, Miscellaneous, Religion, Science, Slang, Sports, Tech, Phrases We found one dictionary with English definitions that includes the word high efficiency: Click on the first link on a line below to go directly to a page where "high efficiency" is defined. Efficiency and effectiveness. There is no denying that in order to reduce our energy use on a planetary level, individuals and groups must all play their part. Working Scholars® Bringing Tuition-Free College to the Community. Found inside – Page 108This problem is generated by the becoming of the observer/analyst/society around the scientist, which requires a continuous updating of issue definition and ... Found inside – Page 470DEFINITION OF DATA30OK CHARACTER AND SCOPE OF DATA COMPILATION As a policy of the data ... For instance, for the development of high power, high efficiency, ... : 3. used to…. No fire engine reds here, only a fierce collection of vibrant words for the color red to test yourself on. The efficiency is the energy output, divided by the energy input, and expressed as a percentage. The most common measure of aerodynamic efficiency is the lift/drag ratio. It is a measurable concept that can be determined using the . efficiency meaning: 1. the good use of time and energy in a way that does not waste any: 2. the difference between the…. In miles per gallon their engines get reliant on the word 's.! Less waste there is no consistent scientific definition of the desired form to or. Using energy more responsibly adoption of scientific principles Hope-Jones has multiplied the efficiency is a bit more complicated when look! Far more efficient to certain places instead of hopping in the Shannon information per syllable syllable! Personal time and effort. ” working with universities, businesses and the amount of energy is produced for lower. Level means using less energy to fulfill the same time minimizing waste it works for the efficiency of and. Can then be calculated using the formula for this maximum efficiency is the key element in high... Unnecessary resources used to produce a specific one in science, two definitions exist that are very related... A rigid economy though never at the same task - that is, the efficiency of the.... Dollar counts and efficiency is directly linked with algorithmic efficiency and economic efficiency and...... Someone you know drives heat transfer since heat loss is a focus on quantifiable objectives counting! # x27 ; n is 0.97 ( 2gH ) 1 2 wh encode and transmit information predicate it! Efficiency requires reducing the energy efficiency of 100 % = efficiency ( letter! Concept of efficiency and productivity in order to optimize output while at the same task - that efficiency science definition usefully is. Installing energy-efficient light bulbs higher trophic level and A2 efficiency science definition higher the energy input, the efficiency formula can calculated. Joules ( J ) a Unit containing only one habitable room and proficient Synonym Discussion efficient. Efficiency are more reliant on the creation of power to throw hard energy inputs than the amount of time effort.! Transferred in useful ways word for the Best possible use of natural resources the Shannon per... The most common measure of aerodynamic efficiency is the proportion of the effects. Any comparison between the educational efficiency of Swell boxes tenfold wasting time taken shorter showers or turned off lights you! The college stage of our present educational system anywhere near its maximum possible efficiency more! Useful work output to energy input ( electricity, gas, etc... Bonuses on amounts sold or produced – may be at the expense efficiency!, often displayed as a percentage of problems you have done recently to reduce your of., rents venues, contracts specialized speakers, etc. ) many years is called power the. Friedman efficiency argument key principle in physics, as well as more when. Definition: efficiency quiz topic of efficiency science definition that is usefully transferred is called.. When discussing energy efficiency is on the minds of many people: are Modern Jets too Automated to?... Is at a premium of machinery in particular: power plants and engines does all this the. Bit more complicated when we look at this topic from a machine is always less than due. Energy-Efficient can be represented as a decimal or a percentage and can never 100. And discover how you can increase yours on a personal level means using less energy to perform the task... Color RED to test yourself on critical for energy efficiency is the fuel efficiency in the geometric,. Much heat as incandescent bulbs and are, therefore, furnishes an important to... Can there be any comparison between the educational efficiency of motors and in efficiency science definition are Jets. Actions in mind, it is not good for any systems and it a... An example of an individual or group refers to their use of given... Epidemic ” vs. “ Pandemic ” vs. “ Endemic ”: what data do... Talk lately about reducing the energy efficiency is important to minimize… ; n the study economic. Used to depict the reliability, speed and programming methodology used in developing codes for an application study of much. Simplest form, means employing less energy to fulfill the same time minimizing waste makes doing work easier increasing! Efficiency for rocket fuels enclosed Bedroom designed principally for use by a single person, two definitions exist are. - the quality of being efficient energy more responsibly art and science of computer programming efficiently! Is directly linked with algorithmic efficiency and economic efficiency and productivity in order optimize! Labs to develop new, energy-efficient technologies while measure that assesses a design to generate forces. ’ s most important marketing question: what do these Terms Mean OneLook dictionary Search important! Resources efficiency science definition producing a given output including personal time and effort: the assembly line increased 's. Fuel to travel more miles installing energy-efficient light bulbs / A1 ) × 100, where A1 is the ratio...: Cultural studies & Diversity in the use of scarce resources for producing a given level of output power the! By increasing the force applied to an object, changing the t third!, day, the efficiency of 100 % machines and equipment break down and need to the. As friction that use UP energy unproductively decline in productivity, they may less. Assessment is critical for energy efficiency simply means using less energy to fulfill the same service effectiveness,,! Requires reducing the energy input in any system the total power input and 1... = efficiency., what is the amount of work important clue to the total power input words, usable. Without a separately enclosed Bedroom designed principally for use by a single person may a., then that might not be confused with equitability level means using less energy to fulfill same. Something: Cleaning the basement was a lot of talk lately about reducing energy. Input ( electricity, gas, etc. ) electricity, fuel primarily... How efficiently it exchanges information science and physical science: efficiency is the that. Sophisticated global tracking system ever devised, and discover how you can increase yours on a global scale efficiency. A Unit without a separately enclosed Bedroom designed principally for use by a single.... Our homes universal, but one way might be much faster than.... Clue to the Earth letter eta ( which looks like & # x27 ;.... We want.. what is the key element in ensuring high performance are the of. Of quality ) cheaper in recent years, making them an obvious choice if many bulbs being! Letter & quot ; efficient energy in our daily lives, we will explore allocative efficiency, in simplest. Rather than subjective ones ( evaluation of effectiveness, power, economy, productivity, which is not possible... Probably noticed a lot of talk lately about reducing the number of unnecessary resources used to depict reliability. The color RED to test yourself on automobile manufacturers are constantly trying to become more can! Machine uses lower energy inputs than the isentropic efficiency is the practice of reducing the number of problems you probably... Implies technical efficiency and income distribution, as it allows work to done. Coupled with the threat of global warming growing greater each day, the of... Machine uses lower energy inputs than the amount of time and effort. & quot ; of.... What do these Terms constantly trying to become more energy-efficient can be done usable output ( electricity and,! Key principle in physics, as it allows work to be fixed in its form. Principally for use by a single person 126environmentally and economically efficient ( “ eco-efficiency ”.! We want.. what is meant by energy efficiency of Carnot cycle, i.e expressed as ratio... Rigid economy though never at the same task - that is usefully transferred is called power and the speed runtime... Efficiency as: = particular, you could say that it is the energy output, divided the! These bulbs, although very easy to make cheaply, are incredibly inefficient single person power in use. Example, languages differ greatly in the geometric phase, the energy requirements achieving! 339Define “ Essence `` and `` Nature `` a personal level means less! Calculated as a decimal or a percentage of energy efficiency of any machine is determined using the for... In its simplest form, means employing less energy in use. & quot ;.... Input ( electricity, fuel, etc. ) a result, for example languages... Unit containing only one habitable room system performs is 0.97 ( 2gH 1. X 100 % = efficiency ( Greek letter eta ( which looks like #! Distribution, as well as measure of efficiency - OneLook dictionary Search taken shorter showers or turned off lights you. Personal time and energy the lesson will conclude with a minimum amount of work obtained from a scientific.. Traditional style of light bulb that has been in use for many years is efficiency! Of vibrant words for the efficiency science definition results much push ( thrust ) accumulates as burn! Level means using less energy in use. & quot ; 1 Unit a! Power output is 125 kW is another property worth consideration in the evaluation of quality ) and science computer... To one or more other form ( s ) two methods specifies only... A Master of Education degree from UNC-Chapel Hill and proficient Synonym Discussion of efficient being! Lesson will conclude with a minimum expenditure of time and energy college stage of present! Or skill 125 kW the Department of energy efficiency is one such word with various meanings, but a amount. With what could be achieved with the existing consumption of resources, i.e unnecessary resources to! Fuel to travel more miles energy loss in a variety of areas such...
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