CRF may refer to:

Science and technology

* Corticotropin-releasing factor family, a family of related neuropeptides in vertebrates **

Corticotropin-releasing hormone Corticotropin-releasing hormone (CRH) (also known as corticotropin-releasing factor (CRF) or corticoliberin; corticotropin may also be spelled corticotrophin) is a peptide hormone involved in stress responses. It is a releasing hormone that b ...

or corticotropin-releasing factor, a polypeptide hormone *

Chromatographic response function Chromatographic response function, often abbreviated to CRF, is a coefficient which measures the quality of the separation in the result of a chromatography. The CRF concept have been created during the development of separation optimization, to co ...

, a coefficient which characterizes the quality of the separation in the result of a chromatography * Coefficient of rolling friction, a coefficient that measures the rolling resistance * Cloud radiative forcing, the difference between the radiation budget components for average cloud conditions and cloud-free conditions * Chemotactic range fitting, a phenomenon in which organisms direct their movements according to certain chemicals *

Controlled-release fertiliser 224px, Methylene diurea (MDU) is component of the most popular controlled-release fertilizers. A controlled-release fertiliser (CRF) is a granulated fertiliser that releases nutrients gradually into the soil (i.e., with a controlled release peri ...

, a solid form fertilizer * Coupled rangefinder camera *

Case report form A case report form (or CRF) is a paper or electronic questionnaire specifically used in clinical trial research. The case report form is the tool used by the sponsor of the clinical trial to collect data from each participating patient. All data on ...

, used in clinical trial research

Computing

Conditional random field Conditional random fields (CRFs) are a class of statistical modeling methods often applied in pattern recognition and machine learning and used for structured prediction. Whereas a classifier predicts a label for a single sample without consi ...

, in machine learning, a type of graphical model * Constant Rate Factor, used in video encoders such as

x265 x265 is an encoder for creating digital video streams in the High Efficiency Video Coding (HEVC/H.265) video compression format developed by the Joint Collaborative Team on Video Coding (JCT-VC). It is available as a command-line app or a softwa ...

, and VP9, and

AV1 AOMedia Video 1 (AV1) is an open, royalty-free video coding format initially designed for video transmissions over the Internet. It was developed as a successor to VP9 by the Alliance for Open Media (AOMedia), a consortium founded in 2015 tha ...

as a bitrate control method.

Medicine

Cardiorespiratory fitness Cardiorespiratory fitness (CRF) refers to the ability of the circulatory and respiratory systems to supply oxygen to skeletal muscles during sustained physical activity. Scientists and researchers use CRF to assess the functional capacity of the ...

, in a clinical trial, the document showing all the evaluated patient data *

Cancer-related fatigue Cancer-related fatigue is a symptom of fatigue that is experienced by nearly all cancer patients. Among patients receiving cancer treatment other than surgery, it is essentially universal. Fatigue is a normal and expected side effect of most for ...

Chronic renal failure Chronic kidney disease (CKD) is a type of long-term kidney disease, defined by the sustained presence of abnormal kidney function and/or abnormal kidney structure. To meet criteria for CKD, the abnormalities must be present for at least three mo ...

, also known as chronic kidney disease (CKD)

Economics and finance

Capital recovery factor A capital recovery factor is the ratio of a constant annuity to the present value of receiving that annuity for a given length of time. Using an interest rate ''i'', the capital recovery factor is: CRF = \frac where n is the number of annuities ...

, a financial concept *

Consolidated Revenue Fund In many states with political systems derived from the Westminster system, a consolidated fund or consolidated revenue fund is the main bank account of the government. General taxation is taxation paid into the consolidated fund (as opposed t ...

, the main government bank account in many Commonwealth Nations

Organisations

* Coalition for Religious Freedom, a group affiliated with the Unification Church also aka

International Coalition for Religious Freedom International is an adjective (also used as a noun) meaning "between nations". International may also refer to: Music Albums * ''International'' (Kevin Michael album), 2011 * ''International'' (New Order album), 2002 * ''International'' (The T ...

* Catholic Reaction Force, a name used by paramilitaries to issue death threats against Protestants in Northern Ireland during "The Troubles" *

Cave Research Foundation The Cave Research Foundation (CRF) is an American private, non-profit group dedicated to the exploration, research, and conservation of caves. The group arose in the early 1950s from the exploration efforts at Floyd Collins Crystal Cave, now within ...

, an American private, non-profit group dedicated to the exploration, research, and conservation of caves *

Central Readiness Force The was established on March 28, 2007, following the upgrading of the Japanese Defense Ministry from the former Japanese Defense Agency. It was initially based at Japan Ground Self-Defense Force (JGSDF) Camp Asaka in Nerima, Tokyo. The command s ...

, a military defense unit in Japan * Centro Ricerche Fiat, the central research organization for Fiat; see Blue&Me * Air Central (ICAO airline designator), an airline in Japan

Sports

Circle rules football Circle rules football, commonly referred to as circle rules, is a team sport played between two teams of six with a large spherical ball similar to a stability ball. Invented in New York City in 2006, the sport is currently played in cities acros ...

, a variation on football with only one goal *

Cyprus Rugby Federation The Cyprus Rugby Federation (CRF) (Greek: Κυπριακή Ομοσπονδία Ράγκμπι, Κ.Ο.ΡΑ) () the governing body for rugby union in Cyprus. It runs several competitions including a league with teams from the British military bases ...

, the governing body for rugby union in Cyprus *

Clube de Regatas do Flamengo Clube de Regatas do Flamengo (; ), more commonly referred to as simply Flamengo, is a Brazilian multi sports club based in Rio de Janeiro, in the neighborhood of Gávea. It was founded and named after the Flamengo, Rio de Janeiro, Flamengo n ...

, a Brazilian football club based in Rio de Janeiro

Other uses

Honda CRF series The Honda CRF series is a line of Four-stroke cycle, four-stroke motocross, trail, and Dual-sport motorcycle, dual sport motorcycles manufactured and marketed by Honda. The CRF line was launched in 2000 as a successor to the Honda CR series. The ...

, a series of motorcycles *

Carolina Renaissance Festival The Carolina Renaissance Festival is a 25 acre renaissance themed amusement park. The festival is set in a fictional storybook village of "Fairhaven". The open air village and artisan marketplace contain cottages and bungalows based on 16th centu ...

, a festival held annually in North Carolina, US *

Charter of Rights and Freedoms The ''Canadian Charter of Rights and Freedoms'' (), often simply referred to as the ''Charter'' in Canada, is a bill of rights entrenched in the Constitution of Canada, forming the first part of the '' Constitution Act, 1982''. The ''Char ...

, a bill of rights entrenched in the Constitution of Canada {{disambiguation