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ceiling damper

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  • Damper (flow) — This article is about the architectural element. For other uers, see Damper (disambiguation). Opposed blade dampers in a mixing duct. A damper is a valve or plate that stops or regulates the flow of air inside a duct, chimney, VAV box, air… …   Wikipedia

  • Business and Industry Review — ▪ 1999 Introduction Overview        Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …   Universalium

  • Air Movement and Control Association — The Air Movement and Control Association International, Inc. (AMCA; pronounced Am Cah ) is a nonprofit organization that creates standards for, tests, and rates Heating, Ventilating, and Air Conditioning (HVAC) equipment. It is best known for its …   Wikipedia

  • Lockheed XF-104 — infobox Aircraft name = XF 104 type = Interceptor prototype manufacturer = Lockheed Aircraft Corporation caption = Lockheed XF 104 FG 786 designer= Clarence L Kelly Johnson first flight=4 March avyear|1954 primary user= Lockheed more users=… …   Wikipedia

  • HVAC — may also stand for High voltage alternating current. See also: Glossary of HVAC HVAC systems use ventilation air ducts installed throughout a building that supply conditioned air to a room through rectangular or round outlet vents, called… …   Wikipedia

  • F-100 Super Sabre — Infobox Aircraft name=F 100 Super Sabre type=Fighter bomber manufacturer=North American Aviation caption=F 100A with the original short tail fin. designer=Edgar Schmued first flight=25 May avyear|1953 introduced=27 September avyear|1954… …   Wikipedia

  • Soundproofing — is any means of reducing the intensity of sound with respect to a specified source and receptor. There are several basic approaches to reducing sound: increasing the distance between source and receiver, using noise barriers to block or absorb… …   Wikipedia

  • Park Tower (Chicago) — Park Tower located at 800 Michigan Avenue in Chicago (coord|41|53|49|N|87|37|31|W|type:landmark region:US scale:5000) is a skyscraper completed in 2000. At 844 feet (257 m) tall with 70 floors 67 floors for practical use, it is the tenth tallest… …   Wikipedia

  • Barra system — The Barra system is a passive solar building technology developed by Horazio Barra in Italy. It uses a collector wall to capture solar radiation in the form of heat. It also uses the thermosiphon effect to distribute the warmed air through… …   Wikipedia

  • Northrop M2-F2 — M2 F2 Role Lifting body Technology Demonstrator National origin United States Manufacturer …   Wikipedia

  • List of devices used by Doctor Doom — This article lists devices used by the Doctor Doom, a fictional supervillain of the Marvel Comics universe and enemy of the Fantastic Four. Over the course of his appearances, Doom has used over 100 devices, many of which he also invented.… …   Wikipedia

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