mass spectrometer — n. (Physics, Chemistry) An analytical instrument which determines the mass of molecules of a substance or fragments of its molecules. It functions by injecting ionized moecules or molecular gragments into a vacuum chamber subjected to a strong… … The Collaborative International Dictionary of English
Mass spectrum — Electron ionization mass spectrum of toluene [4]. Note parent peak corresponding to molecular mass M = 92 (C7H8+) and highest peak at M 1 = 91 (C7H7+, quasi stable tropylium cation). A mass spectrum is an inten … Wikipedia
Mass chromatogram — A mass chromatogram is a representation of mass spectrometry data as a chromatogram, where the x axis represents time and the y axis represents signal intensity.[1] The source data contains mass information; however, it is not graphically… … Wikipedia
Mass flow sensor — A mass airflow sensor. A mass air flow sensor is used to find out the mass flowrate of air entering a fuel injected internal combustion engine. The air mass information is necessary for the engine control unit (ECU) to balance and deliver the… … Wikipedia
Mass Effect: Revelation — … Wikipedia
Mass Effect (video game) — Mass Effect Developer(s) BioWare (Xbox 360) Demiurge Studios (Microsoft Windows[1] … Wikipedia
Mass spectrometry — (MS) is an analytical technique that measures the mass to charge ratio of charged particles.[1] It is used for determining masses of particles, for determining the elemental composition of a sample or molecule, and for elucidating the chemical… … Wikipedia
Mass Rapid Transit (Singapore) — Mass Rapid Transit (MRT) 大众快速交通 (地铁) Sistem Pengangkutan Gerak Cepat துரிதக் கடவு ரயில் Info Owner … Wikipedia
Mass media — refers collectively to all media technologies, including the Internet, television, newspapers, film and radio, which are used for mass communications, and to the organizations which control these technologies.[1][2] Since the 1950s, in the… … Wikipedia
Mass deacidification — is a term used in Library and Information Science for one possible measure against the degradation of paper in old books (the so called slow fires ). The goal of the process is to increase the pH of acidic paper on a large scale. Although acid… … Wikipedia
mass media — ● mass media nom masculin pluriel (mot américain) Synonyme de communication de masse. ● mass media (difficultés) nom masculin pluriel (mot américain) Orthographe En deux mots, sans trait d union. Nombre Toujours au pluriel : les mass media.… … Encyclopédie Universelle