K-factor or K factor may refer to:
Engineering and technology
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K-factor (aeronautics) For aircraft fuel flow meters, K-factor refers to the number of pulses expected for every one volumetric unit of fluid passing through a given flow meter, and is usually encountered when dealing with pulse signals.[K-factor (centrifugation) In centrifugation the clearing factor or k factor represents the relative pelleting efficiency of a given centrifuge rotor at maximum rotation speed. It can be used to estimate the time t (in hours) required for sedimentation of a fraction with a kn ...]
, relative pelleting efficiency of a given centrifuge rotor
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K factor (crude oil refining) The K factor or characterization factor is defined from Rankine boiling temperature °R=1.8Tb and relative to water density ρ at 60°F:
K(UOP) = \sqrt / \rho
The K factor is a systematic way of classifying a crude oil according to its paraffin ...
, a system for classifying crude oil
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K-factor (fire protection) In fire protection engineering, the K-factor formula is used to calculate the volumetric flow rate rate from a nozzle. Spray nozzles can for example be fire sprinklers or water mist nozzles, hose reel nozzles, water monitors and deluge fire system ...
, formula used to calculate the discharge rate from a fire system nozzle
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K factor (traffic engineering)
In transportation engineering, the K factor is defined as the proportion of annual average daily traffic occurring in an hour.
This factor is used for designing and analyzing the flow of traffic on highways. K factors must be calculated at a contin ...
, the proportion of annual average daily traffic occurring in an hour
Mathematics and statistics
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K-factor (actuarial)
Generally Accepted Accounting Principles (GAAP or U.S. GAAP, pronounced like "gap") is the accounting standard adopted by the U.S. Securities and Exchange Commission (SEC) and is the default accounting standard used by companies based in the Unit ...
, the ratio of the value of deferrable expenses to the value of estimated gross profits
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k-factor (graph theory)
In graph theory, a factor of a graph ''G'' is a spanning subgraph, i.e., a subgraph that has the same vertex set as ''G''. A ''k''-factor of a graph is a spanning ''k''-regular subgraph, and a ''k''-factorization partitions the edges of the grap ...
, a spanning ''k''-regular subgraph in graph theory
Telecommunications
* K-factor, the circular segment of earth profile that blocks off long-distance communications in
line-of-sight propagation
Line-of-sight propagation is a characteristic of electromagnetic radiation or acoustic wave propagation which means waves travel in a direct path from the source to the receiver. Electromagnetic transmission includes light emissions travelin ...
Other uses
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K-factor (Elo rating system)
The Elo rating system is a method for calculating the relative skill levels of players in zero-sum games such as chess. It is named after its creator Arpad Elo, a Hungarian-American physics professor.
The Elo system was invented as an improved ch ...
, a constant used in Elo rating system
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K-factor (marketing) In viral marketing, the K-factor can be used to describe the growth rate of websites, apps, or a customer base. The formula is roughly as follows:
:i=\text (e.g. if each new customer invites five friends, ''i'' = 5)
:c=\text (e.g. if one in five ...
, the growth rate of websites, apps, or a customer base
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K-factor (sheet metal)
Bending is a manufacturing process that produces a V-shape, U-shape, or channel shape along a straight axis in ductile materials, most commonly sheet metal.Manufacturing Processes Reference Guide, Industrial Press Inc., 1994. Commonly used equi ...
, the ratio of location of the neutral line to the material thickness
* ''
The K Factor
''Harry Hill's TV Burp'' (also known as just ''TV Burp'') is a British television comedy programme broadcast between 2001 and 2012 on ITV. The show was produced by Avalon Television and was written and hosted by comedian Harry Hill. Each epi ...
'', a fictional TV show within ''Harry Hill's TV Burp''
* Bondi ''k''-factor, the "''k''" in
Bondi ''k''-calculus
See also
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K (disambiguation) K is the eleventh letter of the Latin alphabet.
K may also refer to:
General uses
* K (programming language), an array processing language developed by Arthur Whitney and commercialized by Kx Systems
* K (cider), a British draft cider manufact ...
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K-value (disambiguation)
{{disambiguation