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The film thickness is selected for level of protection desired and the dimensions of the glass pane. Manufacturers recommend 100 micrometer film (2 ply) for glass up to 3 mm (1/8 in) and 175 micrometer film for glass over 6 mm (1/4 in). These films can be applied for security applications, where a delay of forced entry is desired.
A portion of the runway behind a displaced threshold has three markings: [1] White arrows along the center line of the runway; White arrow heads across the width of the runway just prior to the displaced threshold bar; A 10 feet (3.0 m) wide white threshold bar across the width of the runway at the displaced threshold
Modern window film technology has created ceramic window films that are non-metallic and do not contain dyes that can result in discoloration. The ceramic and metallic window films usually cost 50-100+ percent more than regular window film but they can reduce energy transmission by as much as 80 percent. [4]
A displaced threshold often exists because of obstacles just before the runway, runway strength, or noise restrictions making the beginning section of runway unsuitable for landings. [30] It is marked with white paint arrows that lead up to the beginning of the landing portion of the runway.
One elaborate kind of door surround is the Gibbs surround, which is a type of banded "rusticated" architectural frame surrounding a door, window or niche in the tradition of classical architecture. The term surround may be used to refer to just an ornamental border which encircles the sides and top of a door frame, [ 1 ] or it may refer to the ...
It is also known as the window of discourse. The term is named after the American policy analyst and former senior vice president at Mackinac Center for Public Policy , Joseph Overton , who proposed that the political viability of an idea depends mainly on whether it falls within an acceptability range, rather than on the individual preferences ...