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Aside from foxing, other types of age-related paper deterioration include destruction of the lignin by sunlight and absorbed atmospheric pollution, typically causing the paper to become brown and crumble at the edges, and acid-related damage to cheap paper such as newsprint, which manufacturers make without neutralizing acidic contaminants.
This moulding can be terminated at the side by ornamentation called a label stop. The hood mould was introduced into architecture in the Romanesque period, though they became much more common in the Gothic period. Later, with the increase in rectangular windows they became more prevalent in domestic architecture.
Disc rot is the tendency of CD, DVD, or other optical discs to become unreadable because of chemical deterioration. The causes include oxidation of the reflective layer, reactions with contaminants, ultra-violet light damage, and de-bonding of the adhesive used to adhere the layers of the disc together.
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Cabinet, wall, trim, and ceiling kitchen paint color ideas will give your cook space the refresh it deserves. Pick from calming neutrals to riotous colors. ... Architectural Moldings Paint Color ...
Beak: Small fillet moulding left on the edge of a larmier, which forms a canal, and makes a kind of pendant. [1] See also: chin-beak; Bed-mould or bed moulding: Narrow moulding used at the junction of a wall and ceiling, found under the cornice, of which it is a part. [2]
“I hate it.” That was one player’s reaction to the NBA’s new format for the league’s annual All-Star Game.. The new-look tournament, announced by the NBA on Tuesday, will feature four ...
Phenol-formaldehyde resins, as a group, are formed by a step-growth polymerization reaction that can be either acid- or base-catalysed.Since formaldehyde exists predominantly in solution as a dynamic equilibrium of methylene glycol oligomers, the concentration of the reactive form of formaldehyde depends on temperature and pH.