A step used in producing some Tennessee whiskeys, in which the whiskey is filtered through or steeped in charcoal chips before going into the casks for aging.

A process for toughening self-hardening steel by heating and cooling it to various temperatures in molten lead, oil, and air.

(metalworking) A method of coating iron or steel with magnetic iron oxide in order to minimize atmospheric corrosion. The articles to be treated are put into a closed retort and a current of superheated steam passed through for a period, followed by a current of producer gas (carbon monoxide), to reduce any higher oxides that may have been formed.

plural of process window index

The theory of the psychological process whereby deliberate attempts to suppress certain thoughts make them more likely to surface.

A major industrial process for smelting aluminium, by dissolving alumina in molten cryolite and then performing electrolysis.

A former industrial process for producing nitrogen-based fertilizer.

The nitrogen fixation reaction of calcium carbide with nitrogen gas in a reactor vessel at about 1,000°C, producing nitrolim.

A branching stochastic process arising from the statistical investigation of the extinction of family names, which are modelled as patrilineal, while offspring are randomly either male or female, and names become extinct if holders die without male descendants. It is useful in understanding human Y-chromosome DNA haplogroups.

A chemical process for the production of phenol, involving the initial production of chlorobenzene from benzene, hydrochloric acid and oxygen, and then the hydrolysis of chlorobenzene to phenol.