(soundproofing)
51Impedance matching — In electronics, impedance matching is the practice of designing the input impedance of an electrical load (or the output impedance of its corresponding signal source) to maximize the power transfer and/or minimize reflections from the load.… …
52Active noise control — (ANC) (also known as noise cancellation, active noise reduction (ANR) or antinoise) is a method for reducing unwanted sound. Contents 1 Explanation 2 Applications 3 See also 4 …
53Peugeot 205 — Infobox Automobile name = Peugeot 205 manufacturer = Peugeot parent company = PSA Peugeot Citroën production = 1983 1997 (1996 in UK) 5.3 million units class = Supermini layout = FF layout body style = 3 and 5 door hatchback 2 door cabriolet… …
54Stockholm-Bromma Airport — Infobox Airport name = Stockholm Bromma Airport nativename = Stockholm Bromma flygplats IATA = BMA ICAO = ESSB type = Public owner = operator = Luftfartsverket city served = Stockholm location = Stockholm Municipality elevation f = 47 elevation m …
55Ford Ka — Infobox Automobile name = Ford Ka [cite book |title=Deutsche Autos seit 1990, vol.6 |last=Kittler |first=Eberhard |year=2001 |publisher=Motorbuch Verlag |location=Stuttgart |isbn=3 613 02052 1 |pages=10 12 ] [ Automobile Revue , catalogue edition …
56DNA Lounge — logo Location SoMa, San Francisco Coordinates …
57Peugeot 405 — Infobox Automobile name=Peugeot 405 manufacturer=Peugeot class=Large family car body style=4 door sedan 5 door wagon engine=Inline 4, 1.4 2.0 L, petrol/diesel production=1987 ndash;1997 (France, United Kingdom) 1987 mdash;present (Egypt and Iran… …
58Noise reduction — For sound proofing, see soundproofing. For scientific aspects of noise reduction of machinery and products, see noise control. Noise reduction is the process of removing noise from a signal. All recording devices, both analogue or digital, have… …
59Yakovlev Yak-42 — Yak 42 Centre Avia Yak 42D in 2006 Role Airliner …
60Rammed earth — The ruins of a Han Dynasty (202 BCE – 220 CE) Chinese watchtower made of rammed earth at Dunhuang, Gansu province, at the eastern end of the Silk Road …
