sieve technique

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• Sieve — In general, a sieve separates wanted/desired elements from unwanted material using a tool such as a mesh, net or other filtration or distillation methods, but it is also used for classification of powders by particle size, or for size measurement …   Wikipedia

• Sieve analysis — A sieve analysis is a practice or procedure used to assess the particle size distribution of a granular material. The size distribution is often of critical importance to the way the material performs in use. A sieve analysis can be performed on… …   Wikipedia

• Sieve (mathematics) — In mathematics, sieve has several possible definitions: * In number theory, a sieve is a technique for counting the size of certain sets whose precise number of elements is hard to determine. See sieve theory, general number field sieve, and… …   Wikipedia

• Quadratic sieve — The quadratic sieve algorithm (QS) is a modern integer factorization algorithm and, in practice, the second fastest method known (after the general number field sieve). It is still the fastest for integers under 100 decimal digits or so, and is… …   Wikipedia

• Brun sieve — In the field of number theory, the Brun sieve (also called Brun s pure sieve) is a technique for estimating the size of sifted sets of positive integers which satisfy a set of conditions which are expressed by congruences. It was developed by… …   Wikipedia

• Selberg sieve — In mathematics, in the field of number theory, the Selberg sieve is a technique for estimating the size of sifted sets of positive integers which satisfy a set of conditions which are expressed by congruences. It was developed by Atle Selberg in… …   Wikipedia

• Turán sieve — In number theory, the Turán sieve is a technique for estimating the size of sifted sets of positive integers which satisfy a set of conditions which are expressed by congruences. It was developed by Pál Turán in 1934.DescriptionIn terms of sieve… …   Wikipedia

• Air-free technique — Air free techniques refer to a range of manipulations in the chemistry laboratory for the handling of compounds that are air sensitive. These techniques prevent the compounds from reacting with components of air, usually water and oxygen; less… …   Wikipedia

• John Friedlander — Infobox Scientist box width = name = John Benjamin Friedlander image size = 200 px caption = John Friedlander in 2008 birth date = birth place = death date = death place = residence = citizenship = nationality = ethnicity = fields = Mathematician …   Wikipedia

• List of algorithms — The following is a list of the algorithms described in Wikipedia. See also the list of data structures, list of algorithm general topics and list of terms relating to algorithms and data structures.If you intend to describe a new algorithm,… …   Wikipedia

• Activated carbon — Activated carbon, also called activated charcoal, activated coal or carbo activatus, is a form of carbon that has been processed to make it extremely porous and thus to have a very large surface area available for adsorption or chemical reactions …   Wikipedia