翻訳と辞書 Words near each other ・ Preservation development ・ Preservation efforts of the Fredericksburg battlefield ・ Preservation Foundation of Palm Beach ・ Preservation Hall ・ Preservation Hall Jazz Band ・ Preservation Inlet ・ Preservation Iowa ・ Preservation Island ・ Preservation Islets ・ Preservation League of New York State ・ Preservation metadata ・ Preservation of biopolymers ・ Preservation of Coloured Areas Act, Act No 31 of 1961 ・ Preservation of illuminated manuscripts ・ Preservation of kobzar music ・ Preservation of magnetic audiotape ・ Preservation of meaning ・ Preservation of the Rights of Prisoners ・ Preservation of the Sign Language ・ Preservation Ohio ・ Preservation Park ・ Preservation Resource Center ・ Preservation Society of Charleston ・ Preservation Society of Newport County ・ Preservation survey ・ Preservation Virginia ・ Preservationist ・ Preservative ・ Preservative against Popery ・ Preserve Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Preservation of magnetic audiotape ： ウィキペディア英語版 Preservation of magnetic audiotape Preservation of magnetic audiotape involves techniques for handling, cleaning and storage of magnetic audiotapes in an archival repository. Multiple types of magnetic media exist but are mainly in the form of open reels or enclosed cassettes. Although digitization of materials on fragile magnetic media in library and information science is a common practice, there remains a need for conserving the actual physical magnetic tape and playback equipment as artifacts. ==Structure of magnetic tape== The first magnetic tapes were manufactured by BASF in Germany in 1932. These were designed with iron carbonyl as the magnetic pigment mixed into the cellulose acetate carrier. Production soon moved to iron oxide coated onto cellulose acetate rolls cut into uniform strips wound onto plastic or metal hubs. Recordists began recording sound on magnetic media in the twenties in the form of magnetic wire. After World War II, the advantages of tape in terms of sturdiness and the ability to edit by cutting and splicing made tape preferable to wire as the magnetic medium of choice. Tape consists of a coating of a magnetic pigment, typically iron oxide (Fe2O3), on a long strip of polyester (polyethelyne terephthalate) base film. This base film has been used since the mid-sixties as a replacement for acetate bases film that was prone to chemical instability. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Preservation of magnetic audiotape」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.