- grain density
- истинная плотность пороха
English-Russian arms dictionary. 2013.
grain density
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Grain boundary strengthening — (or Hall Petch strengthening) is a method of strengthening materials by changing their average crystallite (grain) size. It is based on the observation that grain boundaries impede dislocation movement and that the number of dislocations within a … Wikipedia
Grain growth — refers to the increase in size of grains (crystallites) in a material at high temperature. This occurs when recovery and recrystallisation are complete and further reduction in the internal energy can only be achieved by reducing the total area… … Wikipedia
Grain boundary — A grain boundary is the interface between two grains in a polycrystalline material. Grain boundaries disrupt the motion of dislocations through a material, so reducing crystallite size is a common way to improve strength, as described by the Hall … Wikipedia
Grain Valley, Missouri — Infobox Settlement official name = Grain Valley, Missouri settlement type = City nickname = motto = imagesize = image caption = image imagesize = image caption = image mapsize = 250px map caption = Location of Grain Valley, Missouri mapsize1 =… … Wikipedia
Density — This article is about mass density. For other uses, see Density (disambiguation). The mass density or density of a material is defined as its mass per unit volume. The symbol most often used for density is ρ (the Greek letter rho). In some cases… … Wikipedia
Film grain — or granularity is the random optical texture of processed photographic film due to the presence of small grains of a metallic silver developed from silver halide that have received enough photons.RMS granularityGranularity, or RMS granularity, is … Wikipedia
Fine grain master positive — A fine grain master positive is a photographic term. It is also known as a fine grain master or fine grain and is a high definition black and white intermediate positive image generated from a negative for the purpose of creating additional… … Wikipedia
rock — rock1 rockless, adj. rocklike, adj. /rok/, n. 1. a large mass of stone forming a hill, cliff, promontory, or the like. 2. Geol. a. mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable… … Universalium
Rock — /rok/, n. a male given name. * * * I In geology, a naturally occurring and coherent aggregate of minerals. The three major classes of rock igneous, sedimentary, and metamorphic are based on the processes that formed them. These three classes are… … Universalium
Jiří Březina — Jiří Březina, born April 6, 1933 in Prague, Czechoslovakia, is a German scientist of Czech origin, a professor of Geology, and an expert in Sand Texture Sedimentology. In 1979 he developed an equation for drag coefficient of a sedimenting… … Wikipedia
Effective porosity — The term effective porosity lacks a single or straightforward definition. Even some of the terms used in its mathematical description (“Vcl” and “Vsh”) have multiple definitions. However, it is most commonly considered to represent the porosity… … Wikipedia
