rate of phase change

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• Phase Change Material — A phase change material (PCM) is a substance with a high heat of fusion which, melting and solidifying at a certain temperature, is capable of storing and releasing large amounts of energy. Heat is absorbed or released when the material changes… …   Wikipedia

• Phase-change memory — Computer memory types Volatile RAM DRAM (e.g., DDR SDRAM) SRAM In development T RAM Z RAM TTRAM Historical Delay line memory Selectron tube Williams tube Non volatile …   Wikipedia

• Phase-shift keying — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

• phase — phaseless, adj. phasic, phaseal, adj. /fayz/, n., v., phased, phasing. n. 1. any of the major appearances or aspects in which a thing of varying modes or conditions manifests itself to the eye or mind. 2. a stage in a process of change or… …   Universalium

• Change — Change, n. [F. change, fr. changer. See {Change}. v. t.] 1. Any variation or alteration; a passing from one state or form to another; as, a change of countenance; a change of habits or principles. [1913 Webster] Apprehensions of a change of… …   The Collaborative International Dictionary of English

• Change of life — Change Change, n. [F. change, fr. changer. See {Change}. v. t.] 1. Any variation or alteration; a passing from one state or form to another; as, a change of countenance; a change of habits or principles. [1913 Webster] Apprehensions of a change… …   The Collaborative International Dictionary of English

• Change ringing — Change Change, n. [F. change, fr. changer. See {Change}. v. t.] 1. Any variation or alteration; a passing from one state or form to another; as, a change of countenance; a change of habits or principles. [1913 Webster] Apprehensions of a change… …   The Collaborative International Dictionary of English

• Change wheel — Change Change, n. [F. change, fr. changer. See {Change}. v. t.] 1. Any variation or alteration; a passing from one state or form to another; as, a change of countenance; a change of habits or principles. [1913 Webster] Apprehensions of a change… …   The Collaborative International Dictionary of English

• rate — 1. A record of the measurement of an event or process in terms of its relation to some fixed standard; measurement is expressed as the ratio of one quantity to another ( e.g., velocity, distance per unit …   Medical dictionary

• Climate change feedback — See also: Avoiding dangerous climate change, Runaway climate change, and Abrupt climate change Climate change feedback is important in the understanding of global warming because feedback processes may amplify or diminish the effect of each… …   Wikipedia

• Birth rate — Countries by birth rate in 2008 Not to be confused with Fertility rate. Crude birth rate is the nativity or childbirths per 1,000 people per year (in estimation review points).[1] Another word used interchangeably with birth rate is natality …   Wikipedia