open close mechanism
1Close order formation — Close order formation: The Stele of Vultures represents a Sumerian phalanx of spearmen with large shields. (ca.2450 BC) A close order formation is a military tactical formation wherein soldiers are close together and regularly arranged for the… …
2Open cluster — Galactic cluster redirects here. See also galaxy groups and clusters NGC 265, an open star cluster in the Small Magellanic Cloud An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud and… …
3Open bolt — A semi or full automatic firearm is said to fire from an open bolt if, when ready to fire, the bolt and working parts are held to the rear. When the trigger is pulled the bolt goes forward, feeding a round from the magazine into the chamber and… …
4Open source — This article is about the production and development model. For its application to software, see Open source software. For the form of intelligence collection management, see Open source intelligence. For other uses, see Open source… …
5Open and closed systems in social science — Ludwig Bertalanffy describes two types of systems: open systems and closed systems. The open systems are systems that allow interactions between its internal elements and the environment. An open system is defined as a “system in exchange of… …
6Airstream mechanism — In phonetics, the airstream mechanism is the method by which airflow is created in the vocal tract. Along with phonation, it is one of two mandatory aspects of sound production; without these, there can be no speech sound. The organ generating… …
7Clean Development Mechanism — The Clean Development Mechanism (CDM) is one of the flexibility mechanisms defined in the Kyoto Protocol (IPCC, 2007).[1] It is defined in Article 12 of the Protocol, and is intended to meet two objectives: (1) to assist parties not included in… …
8Berry mechanism — The Berry mechanism, or Berry pseudorotation mechanism, is a type of vibration causing molecules of certain geometries to isomerize by exchanging the two axial ligands for two of the equatorial ones. It is the most widely accepted mechanism for… …
9Dutch Open Telescope — The Dutch Open Telescope with the canopy closed. Organization …
10Defence mechanism (biology) — Many plants and animals have developed physical defence mechanisms (American English). (British spelling; defense mechanisms)AnimalsGrazing animals often feed in herds. When a predator attacks, the animals in different directions, often confusing …
