liquid filter

  • 91Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …

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  • 92Internal combustion engine — The internal combustion engine is an engine in which the combustion of a fuel (normally a fossil fuel) occurs with an oxidizer (usually air) in a combustion chamber. In an internal combustion engine, the expansion of the high temperature and high …

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  • 93Laboratory glassware — Three beakers, a conical flask, a graduated cylinder and a volumetric flask …

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  • 94Microphone — For the indie film, see Microphone (film). Microphones redirects here. For the indie band, see The Microphones. A …

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  • 95Christiansen effect — The Christiansen effect is named after the Danish physicist Christian Christiansen the effect of this filter is based on the various dispersions of two different media. A Christiansen filter is a narrow bandpass or monochromatic optical filter… …

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  • 96Cryogenic nitrogen plant — Nitrogen, as an element of great technical importance, can be produced in a cryogenic nitrogen plant with a purity of more than 99.9999%. Air inside a distillation column is separated at cryogenic temperatures (about 100K/ 173°C) to produce high… …

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  • 97Kai's Power Tools — are a set of API plugins created by Kai Krause that were designed for use with Adobe Photoshop and Corel Photo Paint. Kai s Power Tools were sold to Corel when MetaCreations was closed.The phrase Kai s Power Tools is often abbreviated to… …

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  • 98Portable water purification — devices – also known as point of use (POU) water treatment systems and field water disinfection techniques – are self contained units that can be used by recreational enthusiasts, military personnel, survivalists, and others who must… …

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  • 99Cement kiln — Cement kilns are used for the pyroprocessing stage of manufacture of Portland and other types of hydraulic cement, in which calcium carbonate reacts with silica bearing minerals to form a mixture of calcium silicates. Over a billion tonnes of… …

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  • 100Ostwald ripening — Basic schematic of the Ostwald ripening process Ostwald ripening is an observed phenomenon in solid solutions or liquid sols which describes the change of an inhomogeneous structure over time. In other words, over time, small crystals or sol… …

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