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total noise exposure level

См. также в других словарях:

  • Noise regulation — includes statutes or guidelines relating to sound transmission established by national, state or provincial and municipal levels of government. After the watershed passage of the United States Noise Control Act of 1972,[1] other local and state… …   Wikipedia

  • Roadway noise — is the collective sound energy emanating from motor vehicles. In the USA it contributes more to environmental noise exposure [Senate Public Works Committee, Noise Pollution and Abatement Act of 1972, S. Rep. No. 1160, 92nd Cong. 2nd session] than …   Wikipedia

  • Hearing impairment — See also: Deaf culture for the social movement.. Deaf and/or hard of hearing Classification and external resources The International Symbol for Deafness …   Wikipedia

  • ultrasonics — /ul treuh son iks/, n. (used with a sing. v.) the branch of science that deals with the effects of sound waves above human perception. [1930 35; see ULTRASONIC, ICS] * * * Vibrational or stress waves in elastic media that have a frequency above… …   Universalium

  • Muzzle brake — The muzzle brake of the 105 mm gun on an AMX 10 RC fighting vehicle …   Wikipedia

  • Controlled-access highway — Freeway redirects here. For other meanings, see Freeway (disambiguation). A freeway with a wide grass median (Highway 402 in Canada) A controlled access highway is a highway designed exclusively for high speed vehicular traffic, with all traffic… …   Wikipedia

  • ear disease — ▪ human Introduction       any of the diseases or disorders that affect the human ear and hearing.       Impaired hearing (deafness) is, with rare exception, the result of disease or abnormality of the outer, middle, or inner ear. Serious… …   Universalium

  • Sensorineural hearing loss — Classification and external resources Cross section of the cochlea. ICD 10 H …   Wikipedia

  • Decibel — This article is about the ratio of measures. For sound or acoustic level, see Sound pressure. For other uses, see Decibel (disambiguation). Attenuation chart of an RG 6 Coaxial cable, measured in decibels per 100 feet of cable The decibel (dB) is …   Wikipedia

  • New York City Subway — Top: A number 4 train made up of R142 …   Wikipedia

  • Underwater acoustics — The field of underwater acoustics is closely related to a number of other fields of acoustic study, including sonar, transduction, acoustic signal processing, acoustical oceanography, bioacoustics, and physical acoustics.HistoryUnderwater sound… …   Wikipedia

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