diffusion frequency

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• Diffusion (acoustics) — Diffusion, in acoustics and architectural engineering, is the efficacy by which sound energy is spread evenly in a given environment. A perfectly diffusive sound space is one that has certain key acoustic properties which are the same anywhere in …   Wikipedia

• Diffusion of innovations — The diffusion of innovations according to Rogers. With successive groups of consumers adopting the new technology (shown in blue), its market share (yellow) will eventually reach the saturation level. In mathematics the S curve is known as the… …   Wikipedia

• Diffusion des ondes — Pour les articles homonymes, voir Diffusion. La diffusion est le phénomène par lequel un rayonnement, comme la lumière, le son ou une particule en mouvement, est dévié dans de multiples directions (on peut parler d « éparpillement »)… …   Wikipédia en Français

• Diffusion transistor — A diffusion transistor is any transistor formed by diffusing dopants into a semiconductor substrate. Diffusion transistors include some types of both bipolar junction transistors and field effect transistors. The diffusion process was developed… …   Wikipedia

• Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… …   Wikipedia

• Bohm diffusion — is the diffusion of plasma across a magnetic field with a diffusion coefficient equal to:D {Bohm} = frac{1}{16},frac{k BT}{eB},where B is the magnetic field strength, T is the temperature, and e is the elementary charge.It was first observed in… …   Wikipedia

• Surface diffusion — [ adatom diffusing across a square surface lattice. Note the frequency of vibration of the adatom is greater than the jump rate to nearby sites. Also, the model displays examples of both nearest neighbor jumps (straight) and next nearest neighbor …   Wikipedia

• Error diffusion — is a type of halftoning in which the quantization residual is distributed to neighboring pixels which have not yet been processed. Its main use is to convert a multi level image into a binary image, though it has other applications.Unlike many… …   Wikipedia

• Very High Frequency) — Bandes de fréquences de la télévision terrestre Les Bandes de fréquences de la télévision terrestre sont situées dans la bande de radiofréquences comprise entre 30 et 3000 MHz (longueur d onde de 10 à 0,1 m), regroupant les très hautes… …   Wikipédia en Français

• Lexical diffusion — In historical linguistics, lexical diffusion is both a phenomenon and a theory. The phenomenon is that by which a phoneme is modified in a subset of the lexicon, and spreads gradually to other lexical items. For example, in English, /uː/ has… …   Wikipedia

• Atomic diffusion — is a process whereby the random thermally activated hopping of atoms in a solid results in the net transport of atoms. For example, helium atoms inside a balloon can diffuse through the wall of the balloon and escape, resulting in the balloon… …   Wikipedia