Remanence — is the magnetization left behind in a medium after an external magnetic field is removed. It is denoted in equations as M r. In engineering applications it is often assumed that the magnetization M is synonymous with the residual flux density B… … Wikipedia
Field Emission Display — (FED) désigne une technique d affichage destinée aux écrans plats. Cette technique a été principalement développée par Sony jusqu en 2009 puis abandonnée au profit des OLED. Les brevets sont détenus depuis janvier 2010 par AU Optronics qui espère … Wikipédia en Français
remanence — noun The magnetization left behind in a medium after an external magnetic field is removed … Wiktionary
Earth's magnetic field — Computer simulation of the Earth s field in a normal period between reversals.[1] The tubes represent magnetic field lines, blue when the field points towards the center and yellow when away. The rotation axis of the Earth is centered and… … Wikipedia
Data remanence — is the residual representation of data that remains even after attempts have been made to remove or erase the data. This residue may result from data being left intact by a nominal file deletion operation, by reformatting of storage media that… … Wikipedia
Degaussing — Degausser redirects here. For the song by Brand New, see Degausser (song). Degaussing is the process of decreasing or eliminating an unwanted magnetic field. It is named after Carl Friedrich Gauss, an early researcher in the field of magnetism.… … Wikipedia
magnetism — /mag ni tiz euhm/, n. 1. the properties of attraction possessed by magnets; the molecular properties common to magnets. 2. the agency producing magnetic phenomena. 3. the science dealing with magnetic phenomena. 4. strong attractive power or… … Universalium
magnet — /mag nit/, n. 1. a body, as a piece of iron or steel, that possesses the property of attracting certain substances, as iron. 2. a lodestone. 3. a thing or person that attracts: The park was a magnet for pickpockets and muggers. [1400 50; late ME… … Universalium
Natural remanent magnetization — (NRM) is the permanent magnetism of a rock or sediment. In some forms, it can preserve a record of the Earth s field and the tectonic movement of the rock over millions of years. Natural remanent magnetization forms the basis of paleomagnetism… … Wikipedia
Neodymium magnet — Nickel plated neodymium magnet on a bracket from a hard drive. Nickel plated neodymium m … Wikipedia
Coercivity — This article is about a property of magnetic fields. For other meanings, see Coercion (disambiguation). A family of hysteresis loops for grain oriented electrical steel (BR denotes remanence and HC is the coercivity). In materials science, the… … Wikipedia