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grain
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grain

The smallest unit of mass in the three English systems (avoirdupois, troy, and apothecaries' weights) used in the UK and USA, equal to 0.0648 g. It was reputedly the weight of a grain of wheat. One pound avoirdupois equals 7,000 grains; one pound troy or apothecaries' weight equals 5,760 grains.

grain

In a piece of timber, the mass of plant cells in the heartwood compressed together as the cells die. It is seen as long thin strands when the wood is cut. The grain runs in one direction. Timber has a high tensile strength along the grain.



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? Mentioned in ? References in periodicals archive
 
In simple terms, grain refining is the process of adding nucleating material to the melt to initiate grain growth.
An example following physical evolution is the measurement of the kinetics of grain growth in nanocrystalline iron prepared by pulsed electrodeposition [17].
The IMP Cu seed layer provides an atomically smooth and cohesive copper interface that allows the correct grain growth during the subsequent bulk fill step.
 
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