- noise-intensity contour
- кривая интенсивности шума
English-Russian marine dictionary . 2014.
English-Russian marine dictionary . 2014.
Contour line — This article is about lines of equal value in maps and diagrams. For more meanings of the word contour , see Contour (disambiguation). The bottom part of the diagram shows some contour lines with a straight line running through the location of… … Wikipedia
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
Equal-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 … Wikipedia
Sound pressure — Sound measurements Sound pressure p, SPL Particle velocity v, SVL Particle displacement ξ Sound intensity I, SIL Sound power Pac Sound power level SWL Sound energy Sound energy d … Wikipedia
Psychoacoustics — is the study of subjective human perception of sounds. Alternatively it can be described as the study of the psychological correlates of the physical parameters of acoustics. Background Hearing is not a purely mechanical phenomenon of wave… … Wikipedia
earthquake — /errth kwayk /, n. 1. a series of vibrations induced in the earth s crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating. 2. something that is severely disruptive; upheaval. [1300 50; ME erthequake … Universalium
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
Segmentation (image processing) — In computer vision, segmentation refers to the process of partitioning a digital image into multiple regions (sets of pixels). The goal of segmentation is to simplify and/or change the representation of an image into something that is more… … Wikipedia
Audiogram — An audiogram is a standard way of representing a person s hearing loss [http://www.phonak.co.uk/ccuk/consumer/hearing/audiogram.htm] . Most audiograms cover the limited range 100Hz to 8000Hz (8kHz) which is most important for clear understanding… … Wikipedia
Glossary of environmental science — This is a glossary of environmental science.Environmental science is the study of interactions among physical, chemical, and biological components of the environment. Environmental science provides an integrated, quantitative, and… … Wikipedia
Supersonic transport — The Concorde supersonic transport had an ogival delta wing, a slender fuselage and four underslung Rolls Royce/Snecma Olympus 593 engines. A supersonic transport (SST) is a civilian supersonic aircraft designed to transport passengers at speeds… … Wikipedia