attenuation equivalent

См. также в других словарях:

• Attenuation — This article is about attenuation in physics. For other uses, see Attenuation (disambiguation). In physics, attenuation (in some contexts also called extinction) is the gradual loss in intensity of any kind of flux through a medium. For instance …   Wikipedia

• aluminum equivalent — the thickness of pure aluminum affording the same radiation attenuation, under specified conditions, as the material or materials being considered …   Medical dictionary

• concrete equivalent — the thickness of concrete having a density of 2.35 g/cm3 which would afford the same radiation attenuation, under specified conditions, as the material or materials being considered …   Medical dictionary

• lead equivalent — the thickness of pure lead which would afford the same radiation attenuation, under specified conditions, as the material or materials under consideration …   Medical dictionary

• TEMPEST — is a codename referring to investigations and studies of compromising emanations (CE). Compromising emanations are defined as unintentional intelligence bearing signals which, if intercepted and analyzed, may disclose the information transmitted …   Wikipedia

• эквивалент затухания системы передачи — — [Л.Г.Суменко. Англо русский словарь по информационным технологиям. М.: ГП ЦНИИС, 2003.] Тематики информационные технологии в целом EN loudness equivalentreference equivalentrelative attenuation equivalentvolume equivalent …   Справочник технического переводчика

• effective wavelength — equivalent wavelength in radiology, the wavelength of monochromatic x rays which would undergo the same percentage attenuation in a specified absorber as the heterogeneous beam under consideration …   Medical dictionary

• Mechanical filter — Figure 1. A mechanical filter made by the Kokusai Electric Company intended for selecting the narrow 2 kHz bandwidth signals in SSB radio receivers. It operates at 455 kHz, a common IF for these receivers, and is dimensioned 45×15×15 mm ( …   Wikipedia

• sound — sound1 soundable, adj. /sownd/, n. 1. the sensation produced by stimulation of the organs of hearing by vibrations transmitted through the air or other medium. 2. mechanical vibrations transmitted through an elastic medium, traveling in air at a… …   Universalium

• Sound — /sownd/, n. The, a strait between SW Sweden and Zealand, connecting the Kattegat and the Baltic. 87 mi. (140 km) long; 3 30 mi. (5 48 km) wide. Swedish and Danish, Oresund. * * * I Mechanical disturbance that propagates as a longitudinal wave… …   Universalium

• RADIOÉLÉMENTS ET RAYONNEMENTS IONISANTS — Les radioéléments sont des isotopes dont les noyaux sont instables, car ils possèdent un trop plein d’énergie; ils s’en libèrent spontanément, tel un ressort qui se détend, en une ou en plusieurs étapes, pour revenir à un état plus stable, en… …   Encyclopédie Universelle