Hysteresis

Hysteresis
From the Greek term meaning "a coming short, a deficiency." Hysteresis, a term coined by Sir James Alfred Ewing, a Scottish physicist and engineer (1855-1935), refers to systems, organisms and fields that have memory. In other words, the consequences of an input are experienced with a certain lag time, or delay. One example is seen with iron: iron maintains some magnetization after it has been exposed to and removed from a magnetic field.

In economics, hysteresis arises when a single disturbance affects the course of the economy. An example of hysteresis in economics is the delayed effects of unemployment. As unemployment increases, more people adjust to a lower standard of living. As they become accustomed to the lower standard of living, people may not be as determined to achieve the previously desired higher living standard. In addition, as more people become unemployed, it becomes more socially acceptable to be or remain unemployed. After the labor market returns to normal, some unemployed people may be disinterested in returning to the work force.


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  • Hysteresis — Hystérésis L hystérésis est la propriété d un système qui tend à demeurer dans un certain état quand la cause extérieure qui a produit le changement d état a cessé. Cycle d hystérésis L exemple le plus trivial d hystérésis est celui d un système… …   Wikipédia en Français

  • Hystéresis — Hystérésis L hystérésis est la propriété d un système qui tend à demeurer dans un certain état quand la cause extérieure qui a produit le changement d état a cessé. Cycle d hystérésis L exemple le plus trivial d hystérésis est celui d un système… …   Wikipédia en Français

  • hystérésis — [ isterezis ] n. f. • 1890; angl. hysteresis; du gr. husterein « être en retard » ♦ Phys. Retard de l effet sur la cause dans le comportement des corps soumis à une action physique. Hystérésis électrique, magnétique, thermique, élastique. ●… …   Encyclopédie Universelle

  • hysteresis — [his΄tər ē′sis] n. [ModL < Gr hysterēsis, a deficiency < hysterein, to be behind, come short < hysteros, later, behind < IE * udteros, compar. of base * ud , up > OUT] Physics a lag of effect when the forces acting on a body are… …   English World dictionary

  • hysteresis — 1805, from Gk. hysteresis “a coming short, a deficiency.” …   Etymology dictionary

  • Hysteresis — Hys te*re sis, n. [NL., fr. Gr. ? to be behind, to lag.] (Physics) A lagging or retardation of the effect, when the forces acting upon a body are changed, as if from velocity or internal friction; a temporary resistance to change from a condition …   The Collaborative International Dictionary of English

  • hysteresis — hysteresis. См. гистерезис. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Hysteresis — (griech., magnetische Trägheit, magnetische Reibung), eine auf der Koerzitivkraft beruhende Erscheinung, die darin besteht, daß das Ansteigen der magnetischen Kraft eines Elektromagnets bei der allmählichen Steigerung des Stromes mit letzterer… …   Meyers Großes Konversations-Lexikon

  • Hysteresis — Hysteresis, s. Elektromagnetismus, Bd. 3, S. 421 …   Lexikon der gesamten Technik

  • hysteresis —  Hysteresis  Гистерезис  Зависимость свойств системы от направления изменений внешних условий. Наблюдается в тех случаях, когда состояние тела определяется внешними условиями не только в данный момент времени, но и в предшествующие моменты.… …   Толковый англо-русский словарь по нанотехнологии. - М.

  • Hysteresis — Not to be confused with Hysteria. Fig. 1. Electric displacement field D of a ferroelectric material as the electric field E is first decreased, then increased. The curves form a hysteresis loop. Hysteresis is the dependence of a system not… …   Wikipedia

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