Gain or GAIN may refer to:
Science and technology
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Gain (electronics)
In electronics, gain is a measure of the ability of a two-port circuit (often an amplifier) to increase the power or amplitude of a signal from the input to the output port by adding energy converted from some power supply to the signal. It i ...
, an electronics and signal processing term
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Antenna gain
In electromagnetics, an antenna's gain is a key performance parameter which combines the antenna's directivity and radiation efficiency. The term ''power gain'' has been deprecated by IEEE. In a transmitting antenna, the gain describes how ...
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Gain (laser) In laser physics, gain or amplification is a process where the medium transfers part of its energy to the emitted electromagnetic radiation, resulting in an increase in optical power. This is the basic principle of all lasers.
Quantitatively, ''gain ...
, the amplification involved in laser emission
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Gain (projection screens)
Gain is a property of a projection screen and is one of the specifications quoted by projection screen manufacturers.
Interpretation
The measured number is called the peak gain at zero degrees viewing axis. It represents the gain value for a vie ...
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Information gain in decision trees, in mathematics and computer science
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GAIN domain, a protein domain
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Learning rate
In machine learning and statistics, the learning rate is a tuning parameter in an optimization algorithm that determines the step size at each iteration while moving toward a minimum of a loss function. Since it influences to what extent newly ...
, a tuning parameter in stochastic approximation methods, also known as gain
Health
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Primary and secondary gain, psychological mechanisms that may underlie an illness
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Global Appraisal of Individual Needs, a set of psychological assessment instruments
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Global Alliance for Improved Nutrition
The Global Alliance for Improved Nutrition (GAIN) is a non-profit foundation based in Geneva, Switzerland. GAIN was developed during the UN 2002 Special Session of the General Assembly on Children. GAIN's activities include improving the consum ...
, a Swiss Foundation working in the field of malnutrition
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Generating Antibiotic Incentives Now, a piece of American legislation
People
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Gain (singer)
Son Ga-in (; born September 20, 1987), known mononymously as Gain, is a South Korean singer, actress and entertainer, best known as a member of the South Korean girl group Brown Eyed Girls. Having debuted with her home group earlier in 2006, Ga ...
, a South Korean entertainer
* Gain, anglicised form of Indian surname
Gayen
Gayen, sometimes anglicised as Gain, is a Bengali surname found in the Indian subcontinent, mainly in West Bengal and Bangladesh. In Bengali, the title ''Gayen'' (গায়েন) referred to anyone involved in the medieval bardic tradition, ...
Other uses
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Gain (accounting)
In financial accounting (CON 8.4), a gain is when the market value of an asset exceeds the purchase price of that asset. The gain is unrealized until the asset is sold for cash, at which point it becomes a realized gain. This is an important distin ...
, the increase of net profit
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''Gain'' (novel), a novel by American author Richard Powers
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''Gain'' (EP), an album by Sadie
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Gain (detergent)
Procter & Gamble (P&G) is an American multinational consumer goods corporation with a portfolio of brands.
Brands with net sales of more than US$1 billion annually
As of 2015, the company stated it owned the following brands with net annual sal ...
, a brand of detergent
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GAIN Capital, a US-based forex trading company
* Greater Avenues to Independence program, a precursor to the American
CalWORKs welfare program
See also
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Gein (disambiguation)
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Gayn (disambiguation)
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Gane
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Gian
Gian is a given name of Italian origin. It is a shortened version of Giovanni, another name of Italian origin.
Notable people
Notable people whose name is now typically expressed as Gian include:
* Gian Paolo Lomazzo, Italian painter
* Gian Lor ...
{{disambiguation