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41Audio quality measurement — seeks to quantify the various forms of corruption present in an audio system or device. The results of such measurement are used to maintain standards in broadcasting, to compile specifications, and to compare pieces of equipment. The need for… …
42Rail transport in Queensland — has a long history, with the first line opening in 1865. Today it is the second largest narrow gauge railway network in the world.The first line was surveyed while the colony was still part of New South Wales, but the colony of Queensland had… …
43Northeast Blackout of 2003 — The Northeast Blackout of 2003 was a massive widespread power outage that occurred throughout parts of the Northeastern and Midwestern United States, and Ontario, Canada on Thursday, August 14, 2003, at approximately 4:15 pm EDT (20:15 UTC), with …
44London Buses route 427 — Infobox London Bus number=427 operator=First London length=10 miles (16 km) time=42 85 minutes vehicle=Dennis Trident 2/Plaxton President garage=Hayes (HS) start=Uxbridge via=Hillingdon Hill Hayes By pass Southall Ealing end=Acton level=Daily… …
45Valve audio amplifier - technical — Circuitry and performance Characteristics of valves Valves are very high input impedance (near infinite in most circuits) and high output impedance devices. They are also high voltage / low current devices.While valves themselves are described… …
46London Midland — Infobox Rail companies bgcolor = 000000 franchise = West Midlands 11 November 2007 – 19 September 2015 logo filename = Londonmidlandlogo.jpg image filename =London Midland Class 323.jpg widthpx = 300px nameforarea = region regions = West Midlands …
47DiskCryptor — main window Developer(s) ntldr <ntldr(at)diskcryptor.net> …
48Fisheries glossary — This is a glossary of terms used in fisheries, fisheries management and fisheries science. A * Abundance is a measure of how many fish are in a population or a fishing ground. See relative abundance and absolute abundance.* Acoustic survey a… …
49Public transport bus service — Bus services play a major role in the provision of public transport. These services can take many forms, varying in distance covered, types of vehicle used, and can operate with fixed or flexible routes and schedules. Services may be operated by… …
50Track (rail transport) — Permanent way redirects here. For other uses, see Permanent way (disambiguation). Twin rail tracks in a wooded area …
