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Carl D. Keith (left) and John J. Mooney at the award ceremony for the National Medal of Technology and Innovation for the invention, application and commercialization of the three-way catalytic converter (2003) The 1970 amendments to the Clean Air Act required significant reductions in hydrocarbon, carbon monoxide and nitrogen oxide emissions.
A three-way catalytic converter on a gasoline-powered 1996 Dodge Ram Simulation of flow inside a catalytic converter. A catalytic converter is an exhaust emission control device which converts toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction.
Carl D. Keith and John J. Mooney (right) at the award ceremony for the National Medal of Technology and Innovation for the invention, application and commercialization of the three-way catalytic converter (2003) Mooney was elected a Fellow of Society of Automotive Engineers (SAE) in 1990 for his efforts in exhaust emission control.
Ormsby was an excellent line engraver and was called upon for a great deal of work for bank notes were in wide use by the Government at the time of the Civil War.He designed the five-dollar note, intended to prevent counterfeiting and was the author of several pamphlets, including, "Cycloidal Configurations" or the Harvest of Counterfeiture, and a volume on paper-money engraving entitled, A ...
High surface area facilitates catalytic reaction or filtration. The open spaces in the cross-sectional area are 72 to 87% of the frontal area, so resistance to the flow of gases through the holes is low, which minimizes energy consumed forcing gases through the structure. The monolith is a substrate that supports a catalyst.
Other terms often used for printed engravings are copper engraving, copper-plate engraving or line engraving. Steel engraving is the same technique, on steel or steel-faced plates, and was mostly used for banknotes, illustrations for books, magazines and reproductive prints, letterheads and similar uses from about 1790 to the early 20th century, when the technique became less popular, except ...
A burin diagram, showing the handle, shaft, cutting tip, and face. [1] The bend in the shaft is especially associated with wood engraving. [2]A burin (/ ˈ b j ʊər ɪ n, ˈ b ɜːr ɪ n / BUR(E)-in) is a steel cutting tool used in engraving, from the French burin (cold chisel).
In intaglio printing, the lines to be printed are cut into a metal (e.g. copper) plate by means either of a cutting tool called a burin, held in the hand – in which case the process is called engraving; or through the corrosive action of acid – in which case the process is known as etching. [6] [7]
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