phase changes

См. также в других словарях:

• 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

• 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 transition — This diagram shows the nomenclature for the different phase transitions. A phase transition is the transformation of a thermodynamic system from one phase or state of matter to another. A phase of a thermodynamic system and the states of matter… …   Wikipedia

• Phase diagram — In physical chemistry, mineralogy, and materials science, a phase diagram is a type of graph used to show the equilibrium conditions between the thermodynamically distinct phases. In mathematics and physics, a phase diagram also has an… …   Wikipedia

• Phase contrast microscopy — Phase contrast image of a cheek epithelial cell Phase contrast microscopy is an optical microscopy illumination technique of great importance to biologists in which small (invisible to the human eye) phase shifts in the light passing through a… …   Wikipedia

• Phase — (f[=a]z), n.; pl. {Phases} (f[=a]z [e^]z). [NL. phasis, Gr. ?, fr. ? to make to appear: cf. F. phase. See {Phenomenon}, {Phantom}, and {Emphasis}.] 1. That which is exhibited to the eye; the appearance which anything manifests, especially any one …   The Collaborative International Dictionary of English

• Phase congruency — is a measure of feature significance in computer images, a method of edge detection that is particularly robust against changes in illumination and contrast.FoundationsPhase congruency reflects the behaviour of the image in the frequency domain.… …   Wikipedia

• phase — phase1 [fāz] n. [ModL phasis < Gr < phainesthai, to appear, akin to phainein: see FANTASY] 1. any of the recurrent stages of variation in the illumination and apparent shape of a moon or a planet 2. any of the stages or forms in any series… …   English World dictionary

• Phase geometrique — Phase géométrique En mécanique quantique, une phase géométrique est un nombre complexe de module unité par lequel est multiplié le vecteur d état (ou la fonction d onde) d un système physique dont on a fait varier un paramètre de façon… …   Wikipédia en Français

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

• Phase-locked loop — PLL redirects here. For other uses, see PLL (disambiguation). A phase locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is related to the phase of an input reference signal. It is an electronic… …   Wikipedia