noise limit
81O-Bahn Busway — A bus on the O Bahn guide way. The Adelaide O Bahn Busway is a guided busway located in Adelai …
82Noisy-channel coding theorem — In information theory, the noisy channel coding theorem (sometimes Shannon s theorem), establishes that for any given degree of noise contamination of a communication channel, it is possible to communicate discrete data (digital information)… …
83Powered hang glider — A foot launched powered hang glider (FLPHG), also called powered harness, nanolight or hangmotor, is a powered hang glider harness with a motor and propeller in pusher configuration. An ordinary hang glider is used for its wing and control frame …
84List of Statutory Instruments of the United Kingdom, 2007 — This is an incomplete list of Statutory Instruments of the United Kingdom in 2007. NOTOC 1 100* Cider and Perry and Wine and Made wine (Amendment) Regulations 2007 S.I. 2007/4 * Customs and Excise (Personal Reliefs for Special Visitors)… …
85Bat species identification — TOCrightBat detectors are the most common way to identify the species of flying bats. There are distinct types of call which can indicate the genus, and variations in pattern and frequency which indicate the species. For readers not familiar with …
86History of Alicante — The area around Alicante has been inhabited for over 7000 years, with the first tribes of hunter gatherers moving down gradually from Central Europe between 5000 and 3000 BC. Some of the earliest settlements were made on the slopes of Mount… …
87cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… …
88Citizens' band radio — Typical 1980s CB base station, used with outdoor antenna. This radio may also be used in an automobile, since it is powered by 13.8V DC. Shown with Astatic Power D 104 desk mic …
89Equal-loudness contour — An equal loudness contour is a measure of sound pressure (dB SPL), over the frequency spectrum, for which a listener perceives a constant loudness when presented with pure steady tones. The unit of measurement for loudness levels is the phon, and …
90Spectrofluorometer — The spectrofluorometer is an instrument which takes advantage of fluorescent properties of some compounds in order to provide information regarding their concentration and chemical environment in a sample. A certain excitation wavelength is… …
