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A torn sheet of paper Mending the Tears, print by Winslow Homer (1888), Los Angeles County Museum of Art Tearing is the act of breaking apart a material by force, without the aid of a cutting tool . A tear in a piece of paper , fabric , or some other similar object may be the result of the intentional effort with one's bare hands, or be accidental.
It is useful to evaluate web runability, controlling the quality of newsprint and characterizing the toughness of packaging paper. Tear strength for paper is measured in units of force, frequently measured with the Elmendorf Tester. Tear Factor is tear strength per unit basis weight, Tear_Strength/Grammage, or N/g/m 2.
Perforation holes on a pair of coil stamps Paper perforator. Perforation frequently refers to the practice of creating a long series of holes or slits so that paper or plastics can be torn more easily along a given line: this is used in easy-open packaging. Since the creation of perforation devices in the 1840s and 1850s, it has seen use in ...
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In advertising, a tear sheet is a page cut or torn from a publication to prove to the client that the advertisement was published. Media buying agencies are often required by clients to provide tear sheets along with a post analysis of any advertising campaign . [ 1 ]
Advertisement for Ansco Cyko photographic paper, 1922. Photographic paper is a paper coated with a light-sensitive chemical, used for making photographic prints.When photographic paper is exposed to light, it captures a latent image that is then developed to form a visible image; with most papers the image density from exposure can be sufficient to not require further development, aside from ...
The following is a rough timeline of frequently mentioned rendering techniques, including areas of current research. Note that even in cases where an idea was named in a specific paper, there were almost always multiple researchers or teams working in the same area (including earlier related work).
The pre-cel animation was later improved by using techniques like the slash and tear system invented by Raoul Barré; the background and the animated objects were drawn on separate papers. [22] A frame was made by removing all the blank parts of the papers where the objects were drawn before being placed on top of the backgrounds and finally ...