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  • 41Ion beam — An ion beam is a type of particle beam consisting of ions. Ion beams have many uses in electronics manufacturing (principally ion implantation) and other industries. Today s ion beam sources are typically derived from the mercury vapor thrusters… …

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  • 42Metallography — A micrograph of bronze revealing a cast dendritic structure Metallography is the study of the physical structure and components of metals, typically using microscopy. Ceramic and polymeric materials may also be prepared using metallographic… …

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  • 43Porous silicon — (pSi) is a form of the chemical element silicon which has an introduced nanoporous holes in its microstructure, rendering a large surface to volume ratio in the order of 500m2/cm3. History Porous silicon was first discovered by accident in 1956… …

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  • 44History of printing — The history of printing began as an attempt to make easier and reduce the cost of reproducing multiple copies of documents, fabrics, wall papers and so on. Printing streamlined the process of communication, and contributed to the development of… …

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  • 45printmaking — /print may king/, n. the art or technique of making prints, esp. as practiced in engraving, etching, drypoint, woodcut or serigraphy. [1925 30; PRINT + MAKING] * * * Art form consisting of the production of images, usually on paper but… …

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  • 46Quantum dot — Part of a series of articles on Nanomaterials Fullerenes …

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  • 47industrial glass — Introduction       solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… …

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  • 48nanotechnology — /nan euh tek nol euh jee, nay neuh /, n. any technology on the scale of nanometers. [1987] * * * Manipulation of atoms, molecules, and materials to form structures on the scale of nanometres (billionths of a metre). These nanostructures typically …

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  • 49Printmaking — Mount Fuji, from the Thirty six Views of Mount Fuji, color woodcut by Katsushika Hokusai This article is about techniques of printmaking as a fine art. For the history of printmaking in Europe, see Old master print. For the Japanese printmaking… …

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  • 50Trockenätzen — Unter dem Begriff Trockenätzen fasst man in der Halbleitertechnologie und in der Mikrosystemtechnik eine Gruppe von subtraktiven (abtragenden) Mikrostrukturverfahren zusammen, die nicht auf nasschemischen Reaktionen (wie nasschemisches Ätzen,… …

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