Duplication

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Duplication

 

carrying out similar or identical actions to attain the same aim; or making something in two sets, repetition, doubling. An example of duplication is the joint flight of a pilot trainee and of an instructor in a two-seated training aircraft on which the control instruments are firmly coupled and control can be exercised from either seat.

Duplication, as a one-time reserve, is a technique widely used in technology to increase the reliability of a system or unit or its essential elements or parts. The main and the reserve objects form a duplicated group. Duplication may be of two kinds: in permanent duplication, the main and the reserve objects function simultaneously and are in identical operating conditions; in replacement duplication (manual or automatic), the reserve object begins to function only after the main object fails. Under the second method the reserve object is, until the moment of replacement, in a nonfunctioning state and therefore less liable to failure than the main object.

O. G. LOSNITSKII and V. N. FOMIN

References in periodicals archive ?
Vantec NexStar NST-DP100S3 Standalone Hard Disk Duplicator
LightScribe CD-R 52x V1.2 Duplicator Grade Rainbow 100-Pack Aleratec Part # 110117, Ingram Micro SKU M45065, Tech Data SKU 58360H ERP $74.99
ONYX has its core logic stored on an advanced flash ROM rather than on the hard disk (which can cause reliability problems in some duplicators).
LightScribe DVD-R 16x V1.2 Duplicator Grade Rainbow 100-Pack, Aleratec Part# 230115, Estimated Retail Price $89.99
Worldwide Computer Products News-17 January 2003-BVRP ships its DivX Video Duplicator software package(C)1995-2003 M2 COMMUNICATIONS LTD http://www.m2.com
TELECOMWORLDWIRE-17 January 2003-BVRP ships its DivX Video Duplicator software package(C)1994-2003 M2 COMMUNICATIONS LTD http://www.m2.com
Primera Technology, Inc., a manufacturer of specialty printers, has announced the release of its new Composer Optical Disc Duplicator.
Van Son makes inroads in digital duplicator, wide-format and desktop ink jet segments
Building on the Image MASSter SOLO hand held drive duplicator, ICS released the Image MASSter SOLO Plus.
Contract awarded for Purchase of an rtg descriptive station and dvd duplicator for mazowiecki szpital wojewdzki drewnica sp.
City of Industry, CA, October 15, 2015 --(PR.com)-- EZ Dupe introduces the new Media Mirror Plus duplicator. Media Mirror Plus series duplicator is a standalone system that copies not only Blu-ray/DVD/CD discs but virtually any type of flash memory card and USB device.
Aleratec, Chatsworth, Calif., developer and manufacturer of Aleratec Award Winning DVD/CD Duplicating and Publishing Solutions, announced today its new 1:3 Copy Cruiser BLU, an all SATA Blu-ray duplicator. The 1:3 Copy Cruiser BLU will be launched with an introductory mail-in rebate through July 31, 2007 for 20 Aleratec duplicator grade Blu-ray BD-R Blu-ray blank discs FREE with purchase (a $360 value).