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Paper chemicals designate a group of chemicals that are used for paper manufacturing, or modify the properties of paper. These chemicals can be used to alter the paper in many ways, including changing its color and brightness , or by increasing its strength and resistance to water. [ 1 ]
Dialects can be defined as "sub-forms of languages which are, in general, mutually comprehensible." [1] English speakers from different countries and regions use a variety of different accents (systems of pronunciation) as well as various localized words and grammatical constructions.
Mass deacidification—along with microfilm and lamination—was developed during the early and mid-20th century as a response to the chemical process of hydrolysis by which the fibers that constitute paper, providing its structure and strength, have their bonds broken, resulting in paper that becomes increasingly brittle over time.
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Language portal; This category contains both accents and dialects specific to groups of speakers of the English language. General pronunciation issues that are not specific to a single dialect are categorized under the English phonology category.
The English Dialect Dictionary (EDD) is the most comprehensive dictionary of English dialects ever published, compiled by the Yorkshire dialectologist Joseph Wright (1855–1930), with strong support by a team and his wife Elizabeth Mary Wright (1863–1958). [1]
Paper is a thin sheet material produced by mechanically or chemically processing cellulose fibres derived from wood, rags, grasses, herbivore dung, or other vegetable sources in water.
The earliest varieties of an English language, collectively known as Old English or "Anglo-Saxon", evolved from a group of North Sea Germanic dialects brought to Britain in the 5th century. Old English dialects were later influenced by Old Norse-speaking Viking invaders and settlers, starting in the 8th and 9th centuries.