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single-grain structure

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  • Grain elevator — Saskatchewan Wheat Pool No. 7, Thunder Bay, Ontario. A grain elevator is a tower containing a bucket elevator, which scoops up, elevates, and then uses gravity to deposit grain in a silo or other storage facility. In most …   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 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 — [greın] n ▬▬▬▬▬▬▬ 1¦(food)¦ 2¦(lines in wood etc)¦ 3¦(small piece)¦ 4 a grain of something 5 against the grain 6¦(measure)¦ ▬▬▬▬▬▬▬ [Date: 1200 1300; : Old French; Origin: Latin granum seed ] 1.) …   Dictionary of contemporary English

  • 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

  • Single crystal — A huge KDP crystal grown from a seed crystal in a supersaturated aqueous solution at LLNL which is to be cut into slices and used on the National Ignition Facility for frequency doubling and tripling. A single crystal or monocrystalline solid is… …   Wikipedia

  • Soil structure — is determined by how individual soil granules clump or bind together and aggregate, and therefore, the arrangement of soil pores between them. Soil structure has a major influence on water and air movement, biological activity, root growth and… …   Wikipedia

  • Crystal structure — In mineralogy and crystallography, crystal structure is a unique arrangement of atoms or molecules in a crystalline liquid or solid. A crystal structure is composed of a pattern, a set of atoms arranged in a particular way, and a lattice… …   Wikipedia

  • Organizational structure of Jehovah's Witnesses — Part of a series on Jehovah s Witnesses Overview …   Wikipedia

  • SOCIAL STRUCTURE OF ANCIENT ISRAEL — the source methods hebrew society prior to the rise of israel in canaan the pre monarchic period tribal and sub tribal units institutions social changes urbanization changes in the tribal system the monarchy and the tribal system national class… …   Encyclopedia of Judaism

  • agricultural technology — Introduction       application of techniques to control the growth and harvesting of animal and vegetable products. Soil preparation       Mechanical processing of soil so that it is in the proper physical condition for planting is usually… …   Universalium

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