saturation class
61Hysteresis — 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… …
62Differentiated services — This article is about communication networks. For the design pattern for business applications, see Differentiated service (design pattern). Differentiated Services or DiffServ is a computer networking architecture that specifies a simple,… …
63Professional diving — Hardhat diving redirects here. Often, hardhat diving is used to specifically mean diving in the old type Standard diving dress. A US Navy diver at work. The umbilical supplying air from the surface is clearly visible Professional diving is a type …
64Switching amplifier — A switching amplifier or class D amplifier is an electronic amplifier which, in contrast to the active resistance used in linear mode AB class amplifiers, uses switching mode of transistor to regulate power delivery. The amplifier, therefore,… …
65Hydrodesulfurization — (HDS) is a catalytic chemical process widely used to remove sulfur (S) from natural gas and from refined petroleum products such as gasoline or petrol, jet fuel, kerosene, diesel fuel, and fuel oils.[1][2] The purpose of removing the sulfur is to …
66Helicon Filter — Infobox Software name = Helicon Filter caption = Helicon Filter 4.81 running on Windows XP developer = Helicon Soft Ltd. latest release version = 4.90 latest release date = September 25, 2008 latest preview version = latest preview date =… …
67Amplificateur pour guitare électrique — Amplificateur Fender format « stack » Un amplificateur pour guitare est un type particulier d amplificateur audio spécialisé pour l amplification de la guitare électrique, ou de la guitare électrique basse, et disposant en conséquence… …
68chile — /chil ee/, n. chili. * * * Chile Introduction Chile Background: A three year old Marxist government was overthrown in 1973 by a dictatorial military regime led by Augusto PINOCHET, who ruled until a freely elected president was installed in 1990 …
69Chile — Chilean, adj., n. /chil ee/; Sp. /chee le/, n. a republic in SW South America, on the Pacific Coast. 14,508,168; 286,396 sq. mi. (741,765 sq. km). Cap.: Santiago. * * * Chile Introduction Chile Background: A three year old Marxist government was… …
70motion picture, history of the — Introduction history of the medium from the 19th century to the present. Early years, 1830–1910 Origins The illusion of motion pictures is based on the optical phenomena known as persistence of vision and the phi phenomenon. The first …
