Two-phase locking — This article is about concurrency control. For commit consensus within a distributed transaction, see Two phase commit protocol. In databases and transaction processing two phase locking, (2PL) is a concurrency control method that guarantees… … Wikipedia
Menstrual cycle — See also: Menstruation and Menstruation (mammal) The menstrual cycle is the scientific term for the physiological changes that can occur in fertile women. This article focuses on the human menstrual cycle. The menstrual cycle, under the… … Wikipedia
Lock (water transport) — Canal lock and lock keeper s cottage on the Aylesbury Arm of the Grand Union Canal at Marsworth in Hertfordshire, England … Wikipedia
Milton High School, Bulawayo — Milton High School is a government all boys high school located in Bulawayo, Zimbabwe. It was the first government all boys school established in Bulawayo. It was founded in 1910 and is named after Sir William Milton, administrator of the British … Wikipedia
Commitment ordering — In concurrency control of databases, transaction processing (transaction management), and related applications, Commitment ordering (or Commit ordering; CO; (Raz 1990, 1992, 1994, 2009)) is a class of interoperable Serializability techniques … Wikipedia
Serializability — In concurrency control of databases,[1][2] transaction processing (transaction management), and various transactional applications (e.g., transactional memory[3] and software transactional memory), both centralized and distributed, a transaction… … Wikipedia
Escapement — redirects here. For the fisheries term for the stock surviving fishing pressures over a spawning cycle, see Spawn (biology). For other uses, see Escapement (disambiguation). A deadbeat escapement, used in many pendulum clocks. Click above to see… … Wikipedia
Bicycle lock — A bicycle lock is a physical security device used on a bicycle to prevent theft. It is generally used to fasten the bicycle to a bicycle stand or other immovable object.An important difficulty in preventing the theft of a bicycle is that the… … Wikipedia
Blowback (firearms) — Blowback is a system of operation for self loading firearms that obtains energy from the motion of the cartridge case as it is pushed to the rear by expanding gases created by the ignition of the propellant charge.[1] Several types of blowback… … Wikipedia
Recoil operation — is an operating mechanism used in locked breech, autoloading firearms. As the name implies, these actions use the force of recoil to provide energy to cycle the action. Other operating systems are blowback operated, gas operated, gatling, and… … Wikipedia
printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… … Universalium