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sample preparation — ▪ chemistry Introduction in analytical chemistry (chemistry), the processes in which a representative piece of material is extracted from a larger amount and readied for analysis. Sampling and sample preparation have a unique meaning and special … Universalium
Fluidization — (or fluidisation) is a process similar to liquefaction whereby a granular material is converted from a static solid like state to a dynamic fluid like state. This process occurs when a fluid (liquid or gas) is passed up through the granular… … Wikipedia
List of Edison patents — Below is a list of Edison patents. Thomas Edison was an inventor who, it is said, accumulated 1500 plus patents worldwide for his inventions. Nearly 1100 of Edison s patents were in the United States, but other patents were approved in countries… … Wikipedia

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