radiation+de+réverbération

См. также в других словарях:

• Electromagnetic reverberation chamber — A look inside the (large) Reverberation Chamber at the Otto von Guericke University Magdeburg, Germany. On the left side is the vertical Mode Stirrer (or Tuner), that changes the electromagnetic boundaries to ensure a (statistically) homogeneous… …   Wikipedia

• acoustics — /euh kooh stiks/, n. 1. (used with a sing. v.) Physics. the branch of physics that deals with sound and sound waves. 2. (used with a pl. v.) the qualities or characteristics of a room, auditorium, stadium, etc., that determine the audibility or… …   Universalium

• ÉLECTRO-ACOUSTIQUE — En acoustique comme en tant d’autres domaines, l’électricité a acccompli une révolution: véhicule de l’information aux propriétés remarquables, elle a permis de résoudre des problèmes restés sans solution depuis des millénaires et a ainsi donné… …   Encyclopédie Universelle

• Anechoic chamber — An anechoic chamber An anechoic chamber (an echoic meaning non echoing or echo free) is a room designed to stop reflections of either sound or electromagnetic waves. They are also insulated from exterior sources of noise. The combination of both… …   Wikipedia

• building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …   Universalium

• résonance — [ rezɔnɑ̃s ] n. f. • v. 1450 mus.; de résonner 1 ♦ Prolongement ou amplification des sons dans certains milieux sonores (⇒ résonner). « Dans ce tombeau, un grignotement de rat [...] prenait des résonances étranges » (Gautier). Caisse de résonance …   Encyclopédie Universelle

• Resonant room modes — affect the low frequency response of a sound system at the listening position. They are actually one of the biggest obstacles to high fidelity reproduction with modern equipment as they exist to varying degrees in all rooms and can only be… …   Wikipedia

• réflexion — [ reflɛksjɔ̃ ] n. f. • 1377; bas lat. reflexio I ♦ Changement de direction des ondes (lumineuses, sonores, etc.) qui rencontrent un corps interposé; phys. Phénomène qui se produit à l interface de deux milieux dans lesquels une même onde a des… …   Encyclopédie Universelle

• Loudspeaker — For other uses, see Loudspeaker (disambiguation). An inexpensive, low fidelity 3½ inch speaker, typically found in small radios …   Wikipedia

• Quasar — This article is about the astronomical object. For other uses, see Quasar (disambiguation). Artist s rendering of ULAS J1120+0641, a very distant quasar powered by a black hole with a mass two billion times that of the Sun[1]. Credit: ESO/M.… …   Wikipedia

• NGC 3227 — and NGC 3226 Observation data (J2000 epoch) Constellation Leo …   Wikipedia