- buffered paper
- 缓冲滤纸
Medical Chinese dictionary (湘雅医学词典). 2013.
Medical Chinese dictionary (湘雅医学词典). 2013.
Acid-free paper — is paper that has a neutral or basic pH (7 or slightly greater). It addresses the problem of preserving documents for long periods. Overview Paper made from wood based pulp that has not had its lignin removed goes yellow and deteriorates over… … Wikipedia
Scrapbooking — is a method for preserving personal and family history in the form of photographs, printed media, and memorabilia contained in decorated albums, or scrapbooks. The idea of keeping printed materials of personal interest probably dates to shortly… … Wikipedia
Photograph — A photograph (often shortened to photo) is an image created by light falling on a light sensitive surface, usually photographic film or an electronic imager such as a CCD or a CMOS chip. Most photographs are created using a camera, which uses a… … Wikipedia
Brittle Books Program — The Brittle Books Program is an initiative carried out by the National Endowment for the Humanities at the request of the United States Congress. The initiative began officially between 1988 and 1989 and was to involve the eventual microfilming… … Wikipedia
Mordançage — Detail of a mordançage print on matte fiber based paper. Oxidation, veiling, and bleaching effects are visible. Mordançage is an alternative photographic process that alters silver gelatin prints to give them a degraded effect. The mordançage… … Wikipedia
Churchill Archives Centre — Country England Type Archive and research library Scope Papers of Winston Churchill and other politicians Established 1973 Location Churchill College, Cambridge … Wikipedia
Color photography — Color film redirects here. For the motion picture equivalent, see Color motion picture film. A circa 1850 Hillotype photograph of a colored engraving. Long believed to be a complete fraud, recent testing found that Levi Hill s process did… … Wikipedia
Actor model — In computer science, the Actor model is a mathematical model of concurrent computation that treats actors as the universal primitives of concurrent digital computation: in response to a message that it receives, an actor can make local decisions … Wikipedia
Cyanotype — Anna Atkins algae Cyanotype is a photographic printing process that gives a cyan blue print. The process was popular in engineering circles well into the 20th century. The simple and low cost process enabled them to produce large scale copies of… … Wikipedia
acid free — A characteristic of inert materials; especially said of papers with a 7 pH, or very close to 7 pH. Below 6.5 pH or above 8.5 pH is not considered acid free. Acid free materials are more permanent, less likely to experience acid migration to… … Glossary of Art Terms
Magnesium in biology — Magnesium is an essential element in biological systems. Magnesium occurs typically as the Mg2+ ion. It is an essential mineral nutrient for life[1][2][3] and is present in every cell type in every organism. For example, ATP (adenosine… … Wikipedia