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 ?
In our proposed K-Minimum Spanning Tree with Super-Relay nodes algorithm (SR-KMST), the overlay nodes are composed of Ordinary-Relay nodes and Super-Relay nodes.
Overlays are still an area of exploration for network administrators, said Zeus Kerravala, principal analyst at ZK Research.
Underlay Overlay Total Avererage group group Conductive loss in dB NO % NO % NO % Less than 20 4 26.
On the other hand, bonded concrete overlays should be considered when the CRCP is in good condition and needs negligible patching.
Since that time, I've done quite a few surface overlays using many different metal designs--some for myself and some for others.
13, 16, 17) It was possible to show that 5% of children in mainstream schools read at least 25% more quickly with an overlay of their chosen colour.
Once you are fed-up with your overlays, you can opt for a 'soak off' at the salon, which costs pounds 15.
An overlay is a set of servers deployed across the internet that:
Polymer overlays are appropriate for use on small bridges in remote locations due to the minimal equipment and labor required to install, and also have been used on large structures in cities where bridges carry more than 150,000 vehicles per day.
ACC started the switch from paper briefs and wooden, pull-out display boards to SMART Board interactive whiteboards and SMART Board for Flat-Panel Displays interactive overlays in 1999.
This overlay helps to confirm or deny friendly observation posts (OPs), battle positions (BPs), or areas available from which to observe named areas of interest (NAIs) or targeted areas of information (TAIs).
includes North American overlay and substrate volumes.