Duplication


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Related to Duplication: duplication cyst

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 ?
On CT, duplication cysts have been characterized as fluid filled structures with thinly enhancing walls in or adjacent to the gut wall.
Bladder duplication is a rare congenital malformation of the urinary system, which was classified as complete or incomplete by Abrahamson in 1961 (3).
This section of duplication has been opened up to traffic as soon as possible to help reduce congestion during peak periods, but some minor works will still occur over the next few weeks, Minister Fitzharris said.
Gastric foregut duplication cyst is a rare condition of the upper gastrointestinal tract and occurs during embryologic development.
There are two duplication detection algorithm used,
Specimen shows features of ileal duplication lined with gastric heterotopia.
Furthermore, DNAH9A may undergo fragment insertion, loss, or repeat after DNAH9 duplication and cannot be transcribed alone (Fig.
The occurrence of alimentary tract duplication cysts was first document in 1733 by Calder.
However, the sub- segment is projected to dominate the global duplication disc market, accounting for over 40% value share of the overall market by the end of 2025.
The causes of gastrointestinal bleeding in children are difficult to distinguish and include Meckel's diverticulum, intussusception, gastroduodenal ulcer and, rarely, an intestinal duplication cyst, which is a congenital anomaly that can occur anywhere in the gastrointestinal tract.
4) Bronchogenic-type cysts are more common than esophageal duplication cysts and their incidences are around 40-60% and 5-10% of mediastinal cystic lesions, respectively.
Because duplications and deletions involve larger swaths of DNA than SNPs do, their influence on human evolution may also be bigger.