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 ?
2 Duplicator Grade Rainbow 100-Pack Aleratec Part # 110117, Ingram Micro SKU M45065, Tech Data SKU 58360H ERP $74.
Now, with TEAC's new line of stand-alone USB tower flash drive duplicators, copying and distributing the data is as easy as 1-2-3.
Aleratec is also introducing complimentary Aleratec brand Blu-ray 1x-2x BD-R 25GB Duplicator Grade 10-Pack media (Aleratec Part # 370100, Ingram Micro SKU N20920), optimized for delivering higher definition picture and sound quality.
DivX Video Duplicator features compression software which, according to the company, means that a full movie can be copied onto one CD-ROM.
While other copiers tend to slow down with two or more drives attached, the IDE Duplicator is virtually unaffected by the number of drives attached.
Powerful duplicator software with many advanced features
provides a one-year warranty on all Spartan brand duplicator systems.
June 4 /PRNewswire/ -- TEAC, a premier manufacturer of Disc Printers and CD/DVD Publishing Products, announces the launch of its T-1000 Industrial USB Flash Duplicator.
The Pico doubles as the world's smallest automated DVD/CD duplicator and allows any small business owner, musician, filmmaker, teacher, or salesperson to duplicate (burn) up to 25 copies at a time for projects or presentations.
Worldwide Computer Products News-17 October 2002-LaCie launches its latest CD duplicator (C)1995-2002 M2 COMMUNICATIONS LTD http://www.
a leading manufacturer in USB Duplicator solutions, announces the ability to quickly and easily extract CID or PSN numbers from SD or microSD memory cards.
HD Mini is a slim and ultimate lightweight HDD duplicator for mobile usage.