DCR may refer to:

Computing

* .dcr, a raw image format * Decision composite residuosity in cryptography, see

Computational hardness assumption In computational complexity theory, a computational hardness assumption is the hypothesis that a particular problem cannot be solved efficiently (where ''efficiently'' typically means "in polynomial time"). It is not known how to prove (unconditi ...

* Design

change request A change request, sometimes called change control request (CCR), is a document containing a call for an adjustment of a system; it is of great importance in the change management process. Purpose and elements A change request is declarative, i. ...

, also document change request and database change request *

Device control register In computing, a device control register is a hardware register that controls some computer hardware device, for example a peripheral or an expansion card. Specific technologies use this terminology with a narrower meaning: * The ISA PNP specific ...

, a hardware register that controls some computer hardware device like a peripheral or an expansion card

Railways

DCRail DCRail (DCR), legally named Devon & Cornwall Railways Limited, is a British train operator. It has been active as a freight operating company since May 2011. It is a subsidiary of the Cappagh Group. DCR was founded in November 2003, and was as s ...

, a British freight operating company *

Delmarva Central Railroad The Delmarva Central Railroad is an American short-line railroad owned by Carload Express that operates of track on the Delmarva Peninsula in the states of Delaware, Maryland, and Virginia. The railroad operates lines from Porter, Delaware to Ha ...

, a short-line railroad serving Delaware, Maryland, and Virginia on the Delmarva Peninsula *

Dubois County Railroad The Dubois County Railroad is a Class III short-line railroad serving Dubois County in southern Indiana, United States, and is a for-profit subsidiary of the Indiana Railway Museum, now better known as the French Lick Scenic Railway. The rail ...

, a Class III short-line railroad serving Dubois County in southern Indiana, United States

Engineering

* DC resistance of an inductor, see

Equivalent series resistance Capacitors and inductors as used in electric circuits are not ideal components with only capacitance or inductance. However, they can be treated, to a very good degree of approximation, as being ideal capacitors and inductors in series with a re ...

Direct-conversion receiver A direct-conversion receiver (DCR), also known as a homodyne, synchrodyne, zero intermediate frequency receiver (zero-IF receiver), is a radio receiver design that demodulation, demodulates the incoming radio signal using synchronous detector , ...

* Dynamic compression ratio, referring to the

compression ratio The compression ratio is the ratio between the maximum and minimum volume during the compression stage of the power cycle in a piston or Wankel engine. A fundamental specification for such engines, it can be measured in two different ways. Th ...

of a combustion engine

Other

Dacryocystorhinostomy Dacryocystorhinostomy (DCR) is a surgical procedure to restore the flow of tears into the nose from the lacrimal sac when the nasolacrimal duct does not function. Process Traditional A small incision is made on the side of the nose and some bon ...

, a surgical procedure to restore the flow of tears into the nose *

Dale Coyne Racing Dale Coyne Racing (DCR) is an American professional open-wheel racing team that currently competes in the IndyCar Series and Indy NXT. The team was founded in 1984 and is owned by former driver Dale Coyne. From 1995 to 2000, the team was known ...

, an American auto racing team * Debt coverage ratio, another term for

debt service coverage ratio The debt service coverage ratio (DSCR), also known as the debt coverage ratio (DCR), is a financial ratio that measures an entity's ability to generate sufficient cash to cover its debt obligations, including interest, principal, and lease paymen ...

(DSCR) * Digital cable ready, indicating that a television is capable of receiving cable TV without a set-top box * Deglaciation climate reversal, see

Younger Dryas The Younger Dryas (YD, Greenland Stadial GS-1) was a period in Earth's geologic history that occurred circa 12,900 to 11,700 years Before Present (BP). It is primarily known for the sudden or "abrupt" cooling in the Northern Hemisphere, when the ...

Department of Conservation and Recreation (Massachusetts) The Department of Conservation and Recreation (DCR) is a state agency of the Commonwealth of Massachusetts, United States, situated in the Executive Office of Energy and Environmental Affairs (Massachusetts), Executive Office of Energy and E ...

, a state agency best known for its parks and parkways * Diploma of the College of Radiographers, abbreviated as DC(R), a qualification that was formerly awarded by the College of Radiographers, see

Society and College of Radiographers The Society of Radiographers (SoR) is a professional body and trade union that represents more than 90 percent of the diagnostic and therapeutic radiographers in the United Kingdom. The College of Radiographers (CoR) is a charitable subsidiary ...

* Distributed constraint reasoning, see

Distributed constraint optimization Distributed constraint optimization (DCOP or DisCOP) is the distributed analogue to constraint optimization. A DCOP is a problem in which a group of agents must distributedly choose values for a set of variables such that the cost of a set of con ...

* Division CuiRassée, a French armoured division in the Battle of France in 1940, see List of French divisions in World War II#Cavalry, mechanized and armoured divisions * Dropped-call rate, a term in telecommunications denoting the percentage of calls which due to technical reasons were cut off before the speaking parties had finished their conversation and before one of them had hung up * Dual Cycle Rifle, a NATO calibre revolver-type assault rifle *

Durham College Rowing Durham College Rowing (commonly abbreviated to DCR) represents all sixteen college boat clubs in Durham University and organises some rowing activities on behalf of all member clubs. In February 2020, together with Durham University Boat Clu ...

, an organization representing all college boat clubs in Durham University * Dynamic contrast ratio, referring to the

contrast ratio The contrast ratio (CR) is a property of a display system, defined as the ratio of the luminance of the brightest shade (white) to that of the darkest shade (black) that the system is capable of producing. A high contrast ratio is a desired aspec ...

property of a display system *

ISO 639-3 ISO 639-3:2007, ''Codes for the representation of names of languages – Part 3: Alpha-3 code for comprehensive coverage of languages'', is an international standard for language codes in the ISO 639 series. It defines three-letter codes for ...

code for the extinct language

Negerhollands Negerhollands ('Negro-Dutch') was a Dutch-based creole language that was spoken in the Danish West Indies, now known as the U.S. Virgin Islands. Dutch was its superstrate language with Danish, English, French, Spanish, and African elem ...

. {{disambiguation