separation and purification — ▪ chemistry Introduction in chemistry, separation of a substance into its components and the removal of impurities. There are a large number of important applications in fields such as medicine and manufacturing. General principles… … Universalium
Separation barrier — A separation barrier is a wall or fence constructed to limit the movement of people across a certain line or border, or to separate two populations. These structures vary in placement with regard to international borders and topography. The most… … Wikipedia
Separation process — In chemistry and chemical engineering, a separation process, or simply a separation, is any mass transfer process used to convert a mixture of substances into two or more distinct product mixtures, at least one of which is enriched in one or more … Wikipedia
Hybrid zone — A hybrid zone exists where the ranges of two interbreeding species meet. For a hybrid zone to be stable, the offspring produced by the cross (the hybrids) have to be less fit than members of the parent species, although this condition does not… … Wikipedia
зона срыва или отрыва потока — — [А.С.Гольдберг. Англо русский энергетический словарь. 2006 г.] Тематики энергетика в целом EN flow separation zone … Справочник технического переводчика
Spoiler (automotive) — A spoiler is an automotive aerodynamic device whose intended design function is to spoil unfavorable air movement across a body of a vehicle in motion. Spoilers are often fitted to race and high performance sports cars, although they have become… … Wikipedia
Meander — For other uses, see Meander (disambiguation). A hypothetical stream bed following a tilted valley. The maximum gradient is along the down valley axis represented by a hypothetical straight channel. Meanders develop, which lengthen the course of… … Wikipedia
Diffuser (automotive) — Top: Lateral view; the red circles mark the front air dam/splitter and rear diffuser. Bottom: Underbody view. A diffuser, in an automotive context, is a shaped section of the car underbody which improves the car s aerodynamic properties by… … Wikipedia
Airy wave theory — In fluid dynamics, Airy wave theory (often referred to as linear wave theory) gives a linearised description of the propagation of gravity waves on the surface of a homogeneous fluid layer. The theory assumes that the fluid layer has a uniform… … Wikipedia
Kohala (volcan) — Pour les articles homonymes, voir Kohala. Kohala Vue du Kohala depuis les pentes du Mauna Kea … Wikipédia en Français
Bumblebee — Taxobox name = Bombus image width = 200px image caption = male Bombus terrestris robbing nectar regnum = Animalia phylum = Arthropoda classis = Insecta ordo = Hymenoptera familia = Apidae subfamilia = Apinae tribus = Bombini genus = Bombus genus… … Wikipedia