overlay

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overlay

an applied decoration or layer, as of gold leaf

overlay

[′ō·vər‚lā]
(civil engineering)
A repair topping of asphalt or concrete placed on a worn roadway.
(computer science)
A technique for bringing routines into high-speed storage from some other form of storage during processing, so that several routines will occupy the same storage locations at different times; overlay is used when the total storage requirements for instructions exceed the available main storage.
(engineering)
Nonwoven fibrous mat (glass or other fiber) used as the top layer in a cloth or mat lay-up to give smooth finish to plastic products or to minimize the fibrous pattern on the surface. Also known as surfacing mat.
An ornamental covering, as of wood or metal.
(graphic arts)
A sheet attached to copy or artwork and containing special instructions about reproduction or arrangement.
A transparent or translucent film attached to artwork and carrying additional detail to be reproduced; in multicolor printing these overlays may represent the separation of the colors to be printed.

overlay

As it pertains to the pavements, it is an additional surface course placed on existing pavement either with or without an intermediate base or sub-base course, usually to strengthen the pavement or restore the profile of the surface.

overlay

(1) A preprinted, precut form placed over a screen, key or tablet for identification purposes. See keyboard template.

(2) A program segment called into memory when required. When a program is larger than the memory capacity of the machine, parts of the program not in constant use can be set up as overlays. Each overlay called in overwrites the existing overlay in memory. Virtual memory provides for automatic overlays. See virtual memory.
References in periodicals archive ?
Effective strategies for those with impaired mobility included the use of support surfaces (mattresses, beds, and cushions), mattress overlays on operating tables, and specialized foam and sheepskin overlays.
* Market size data for Pressure Relief Devices market segments - Specialty Beds Rental Business, Specialty Beds Sales Business, Mattresses and Mattress Overlays.
Reassessment should be conducted when mattress overlays or positioning items are added or removed, when bed rails or mattresses are changed, or when a resident is placed into a different bed.
After the initial assessment of the different bed systems, reassessment may be appropriate when, for example, (1) there is reason to believe that some components are worn (e.g., rails wobble, rails are damaged, or mattresses are softer) and could cause increased spaces within the bed system; (2) when accessories (e.g., mattress overlays or positioning poles) are added or removed; or (3) when bed system components are changed or replaced (e.g., new bed rails or mattresses).
[UKPRwire, Thu Nov 28 2013] GBI Research's report, "Pressure Relief Devices Market to 2019 - Increasing Focus on Pressure Ulcer Prevention and Quality of Care to Drive Growth" looks at the market, competitive landscape, and trends for the four pressure relief devices market segments, mattress overlays, specialty beds (rentals), specialty beds (sales), and mattresses.
For example, undertake reassessment: (1) if the facility suspects that some components are worn (e.g., rails wobble or are damaged, mattresses are softer), leading to increased spaces opening up; (2) when adding or removing accessories such as mattress overlays or positioning poles; or (3) when changing or replacing bed system components such as bedrails or mattresses.
The report provides value, in millions of US dollars, volume (in units) and average prices (in US dollars) within market segments -Specialty Beds Sales Business, Mattresses (Static and Dynamic Mattresses) and Mattress Overlays (Static and Dynamic Mattress Overlays).