Dual (grammatical number) — Dual (abbreviated du) is a grammatical number that some languages use in addition to singular and plural. When a noun or pronoun appears in dual form, it is interpreted as referring to precisely two of the entities (objects or persons) identified … Wikipedia
Dual-tone multi-frequency — (DTMF) signaling is used for telephone signaling over the line in the voice frequency band to the call switching center. The version of DTMF used for telephone tone dialing is known by the trademarked term Touch Tone (canceled March 13, 1984),… … Wikipedia
Key System — The Key System (or Key Route) was a privately owned company which provided mass transit in the cities of Oakland, Berkeley, Alameda [ [http://findarticles.com/p/articles/mi qn4176/is 20030621/ai n14551761 Old Alameda s transit system was less… … Wikipedia
Dual-tone multi-frequency signaling — One of the few production telephone DTMF keypads with all 16 keys, from an Autovon Telephone. The column of red keys produces the A, B, C, and D DTMF events. Dual tone multi frequency signaling (DTMF) is used for telecommunication signaling over… … Wikipedia
Reductive dual pair — In the mathematical field of representation theory, a reductive dual pair is a pair of subgroups (G,G ′) of the isometry group Sp(W) of a symplectic vector space W, such that G is the centralizer of G ′ in Sp(W) and vice versa, and these groups… … Wikipedia
sudvejintos raktų poros — statusas T sritis informatika apibrėžtis Dvi ↑viešųjų raktų ir ↑privačiųjų raktų poros – iš viso keturi raktai – atitinkantys du atskirus ↑liudijimus. Privatusis raktas iš vienos poros yra naudojamas parašui, o viešasis ir privatusis raktas iš… … Enciklopedinis kompiuterijos žodynas
Smart card — This article is regarding smart cards that use electrical connectors to transmit data. For smart cards that use radio see contactless smart card Contact type smart cards may have many different contact pad layouts, such as these SIMs A smart card … Wikipedia
Resolution class submarine — The Resolution class submarine armed with the UGM 27 Polaris missile was Great Britain s primary nuclear deterrent from the late 1960s to 1994, when they were replaced by the Vanguard class submarine carrying the Trident… … Wikipedia
Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… … Universalium
Vector space — This article is about linear (vector) spaces. For the structure in incidence geometry, see Linear space (geometry). Vector addition and scalar multiplication: a vector v (blue) is added to another vector w (red, upper illustration). Below, w is… … Wikipedia
