coefficient d’atténuation
41attenuation coefficient — silpninimo koeficientas statusas T sritis radioelektronika atitikmenys: angl. attenuation coefficient vok. Dämpfungskoeffizient, m rus. коэффициент ослабления, m pranc. constante d affaiblissement, f; constante d atténuation, f ryšiai: palygink – …
42Attenuation length — In physics, the attenuation length or absorption length is the distance lambda into a material when the probability has dropped to 1/e that a particle has not been absorbed. Alternatively, if there is a beam of particles incident on the material …
43Attenuation of sound in selected fluids — ▪ Table Attenuation of sound in selected fluids fluid attenuation coefficient helium 52.5 hydrogen 16.9 nitrogen 133.0 oxygen 165.0 air 137.0 carbon dioxide 140.0 water, at 0 °C (32 °F) 0.569 water, at 20 °C (68 °F) 0.253 water, at 80 °C (176 °F) …
44attenuation — The decrease in the intensity of a signal, beam, or wave as a result of the absorption of energy (by the terrain or medium over which, or through which, the energy travels) and of scattering out of the path to the detector but not including the… …
45coefficient — 1. The expression of the amount or degree of any quality possessed by a substance, or of the degree of physical or chemical change normally occurring in that substance under stated conditions. 2. The ratio or factor that relates a quantity… …
46attenuation coefficient — The coefficient which expresses energy losses of electromagnetic radiation due to both absorption and scattering in a medium. Relevant to narrow beam conditions …
47Coefficient de diffusivité thermique — Diffusivité thermique La diffusivité thermique représente la vitesse de pénétration et atténuation d une onde thermique dans un milieu. La diffusivité thermique est souvent désignée par la lettre a, D ou la lettre grecque α (alpha). (en m²/s) où… …
48mass attenuation coefficient — masinis silpninimo koeficientas statusas T sritis fizika atitikmenys: angl. mass attenuation coefficient vok. Massenschwächungskoeffizient, m rus. массовый коэффициент ослабления, m pranc. coefficient d’atténuation massique, m; coefficient… …
49linear attenuation coefficient — ilginis silpninimo koeficientas statusas T sritis Standartizacija ir metrologija apibrėžtis Spinduliuotės ar šviesos srauto spektrinių tankių santykinis sumažėjimas kolimuotajame elektromagnetinės spinduliuotės pluošte, kertančiame be galo mažo… …
50linear attenuation coefficient — ilginis silpninimo koeficientas statusas T sritis fizika atitikmenys: angl. linear attenuation coefficient; linear extinction coefficient vok. linearer Schwächungskoeffizient, m rus. линейный коэффициент ослабления, m pranc. coefficient… …
