- emission of waves
- Макаров: излучение волн
Универсальный англо-русский словарь. Академик.ру. 2011.
Универсальный англо-русский словарь. Академик.ру. 2011.
Emission theory — (also called emitter theory ) was a competing theory for the special theory of relativity, explaining the results of the Michelson Morley experiment. Emission theories obey the principle of relativity by having no preferred frame for light… … Wikipedia
emission — [ē mish′ən, imish′ən] n. [L emissio < pp. of emittere] 1. the act of emitting; issuance; specif., a) the transmission of radio waves b) the ejection of electrons from a surface by heat, radiation, etc. c) a discharge of fluid from the body;… … English World dictionary
Emission spectrum — The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted by the element s atoms or the compound s molecules when they are returned to a lower energy state. Each element s … Wikipedia
emission — A discharge; referring usually to a discharge of the male internal genital organs into the internal urethra; the contents of the organs, including sperm cells, prostatic fluid, and seminal vesicle … Medical dictionary
Lamb waves — propagate in solid plates. They are elastic waves whose particle motion lies in the plane defined by the plate normal and the direction of wave propagation. In 1917, the English mathematician Horace Lamb published his classic analysis and… … Wikipedia
Acoustic Emission — (AE) is a naturally occurring phenomenon whereby external stimuli such as mechanical loading generate sources of elastic waves. AE occurs when a small surface displacement of a material is produced. This occurs due to stress waves generated when… … Wikipedia
Thermionic emission — Closeup of the filament on a low pressure mercury gas discharge lamp showing white thermionic emission mix coating on the central portion of the coil. Typically made of a mixture of barium, strontium and calcium oxides, the coating is sputtered… … Wikipedia
Nocturnal emission — This article is about the biological function. For the sound art group, see Nocturnal Emissions. For fictional works, see Wet Dream (disambiguation). A nocturnal emission involves either ejaculation during sleep for a male, or lubrication of the… … Wikipedia
Atomic emission spectrum — The atomic emission spectrum of an element is the set of frequencies of the electromagnetic waves emitted by atoms of that element. Each atom s atomic emission spectrum is unique and can be used to determine if that element is part of an unknown… … Wikipedia
radio emission — noun an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m (Freq. 16) • Syn: ↑radio wave, ↑radio radiation • Hypernyms: ↑electromagnetic radiation, ↑electromagnetic wave, ↑nonparticulate radiation … Useful english dictionary
Long Waves — Basse fréquence Pour les articles homonymes, voir BF et LF. La bande radioélectrique des basses fréquences ou LF (low frequency) est la partie du spectre radioélectrique de fréquence comprise entre 30 kHz et 300 kHz (longueur d onde de… … Wikipédia en Français