expansion ring

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• Ring of Honor — Logo de Ring of Honor Création 2002 Fondat …   Wikipédia en Français

• Ring expansion reaction — A ring expansion reaction is a type of organic reaction in which usually a hydrocarbon ring is expanded. Examples of ring expansions are: * Beckmann rearrangement * Dowd Beckwith ring expansion reaction. Ring contraction reaction A ring… …   Wikipedia

• Ring Neighborhoods, Jerusalem — View of Ramot The Ring neighborhoods of Jerusalem (Hebrew: שכונות הטבעת‎) are seven suburban neighborhoods in East Jerusalem. The neighborhoods (more or less clockwise from north to east to south) are Ramot, Ramat Shlomo, Neve Yaakov, Pisgat Ze… …   Wikipedia

• Ring Nebula — For the Ring Nebula in Barnard s Galaxy, see Ring Nebula (NGC 6822). The Ring Nebula M57, The Ring Nebula. Credit: NASA/STScI/AURA …   Wikipedia

• ring roads — A ring road is a circulation axis permitting high speed traffic around a city to avoid interfering with inner city traffic. A number of Chinese cities have adopted a road network comprising several high speed ring roads and radial roads. Networks …   Encyclopedia of Contemporary Chinese Culture

• Expansion of Amsterdam — The Dutch city of Amsterdam has had many planned expansions over the past two centuries.amuel SarphatiSamuel Sarphati was a Jewish doctor in 19th century Amsterdam. By working in Amsterdam as a doctor in that period of time, he was confronted… …   Wikipedia

• ring shake — noun : a defect in timber consisting of shrinkage and separation of the annual rings called also cup shake; compare heart shake * * * ring shake, a crack in timber, usually caused by frost, in which the extremes of contraction and expansion tear… …   Useful english dictionary

• Dowd–Beckwith ring expansion reaction — The Dowd–Beckwith ring expansion reaction is an organic reaction in which a cyclic β keto ester is expanded by up to 4 carbons in a free radical ring expansion reaction through an α alkylhalo substituent [1] [2] …   Wikipedia

• Dowd-Beckwith ring expansion reaction — The Dowd Beckwith Ring Expansion Reaction is an organic reaction in which a cyclic β keto ester is expanded by up to 4 carbons in a free radical ring expansion reaction through an α alkylhalo substituent Ref|Dowd1 Ref|Dowd2 Ref|Beckwith1. The… …   Wikipedia

• War of the Ring (board game) — War of the Ring is a strategy board game by Roberto Di Meglio, Marco Maggi and Francesco Nepitello, produced by Nexus Editrice (Italy). Since its first print run it has been produced in many languages: Fantasy Flight Games publishes the English… …   Wikipedia

• Polynomial ring — In mathematics, especially in the field of abstract algebra, a polynomial ring is a ring formed from the set of polynomials in one or more variables with coefficients in another ring. Polynomial rings have influenced much of mathematics, from the …   Wikipedia