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Impurity (other)
An impurity is a substance inside a confined amount of liquid, gas, or solid, which differs from the chemical composition of the material or compound. Impurity may also refer to: * Impurity (Fleshcrawl album), ''Impurity'' (Fleshcrawl album), 1994 * Impurity (New Model Army album), ''Impurity'' (New Model Army album), 1990 * decision tree learning#Gini impurity, Gini impurity, in decision tree learning See also * Purity (other), Purity * Ritual impurity * Aśuddhatā, in Hindu religion * Dirty * Unclean (other) * Vice {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impurity
In chemistry and materials science, impurities are chemical substances inside a confined amount of liquid, gas, or solid. They differ from the chemical composition of the material or compound. Firstly, a pure chemical should appear in at least one Phase (matter), chemical phase and can also be characterized by its phase diagram. Secondly, a pure chemical should prove to be homogeneous (i.e., a uniform substance that has the same composition throughout the material). The perfect pure chemical will pass all attempts to separate and purify it further. Thirdly, and here we focus on the common chemical definition, it should not contain any trace of any other kind of chemical species. In reality, there are no absolutely 100% pure chemical compounds, as there is always some small amount of contamination. The levels of impurities in a material are generally defined in relative terms. standardization, Standards have been established by various organizations that attempt to define the permi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impurity (Fleshcrawl Album)
''Impurity'' is the second studio album by the German death metal Death metal is an extreme metal, extreme subgenre of heavy metal music. It typically employs heavily distorted and low-tuned guitars, played with techniques such as palm muting and tremolo picking; deep death growl, growling vocals; aggressive ... band Fleshcrawl. It was their first album to feature guitarist Mike Hanus, brother of founding member Stefan Hanus and last to feature founding bass guitarist Markus Amann, and it is the only Fleshcrawl album thus far that does not bear the "carved-in-flesh" Fleshcrawl logo. This album is different from the preceding ''Descend into the Absurd'' in that it is somewhat more melodic and musically organized, thus making it closer to the Scandinavian death metal, Swedish subgenre of death metal in relation than their earlier releases, which carry a more generic death metal sound. As is typical of their mid-1990s albums, and of mid-1990s Swedish/Melodic death metal, mel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impurity (New Model Army Album)
''Impurity'' is a studio album by British rock band New Model Army, released in 1990. It was the first album without bassist Moose Harris, Jason Harris, who had been replaced by Peter Nice (better known as "Nelson"). It was the band's last studio album with EMI. The album sees the band venturing further into the musical territory which they began exploring on their previous album, ''Thunder and Consolation'' (1989). Violinist Ed Alleyne-Johnson was again a collaborator. It also contained the guitar work of Adrian Portas. The album reached #23 on the UK Albums Chart, UK albums chart in October 1990. Critical reception ''Trouser Press'' wrote that the album "exemplifies a fervent, trend- bucking band that has remained true to its original goals." Singles The singles released from the album were "Get Me Out" (September 1990), "Purity" (October 1990) and "Space" (June 1991). Versions The LP album, LP contained 11 tracks, the Compact Disc, CD version included the bonus track "Mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decision Tree Learning
Decision tree learning is a supervised learning approach used in statistics, data mining and machine learning. In this formalism, a classification or regression decision tree is used as a predictive model to draw conclusions about a set of observations. Tree models where the target variable can take a discrete set of values are called Statistical classification, classification decision tree, trees; in these tree structures, leaf node, leaves represent class labels and branches represent Logical conjunction, conjunctions of features that lead to those class labels. Decision trees where the target variable can take continuous values (typically real numbers) are called regression analysis, regression decision tree, trees. More generally, the concept of regression tree can be extended to any kind of object equipped with pairwise dissimilarities such as categorical sequences. Decision trees are among the most popular machine learning algorithms given their intelligibility and simplic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Purity (other)
Purity may refer to: Books *Pureza (novel), ''Pureza'' (novel), a 1937 Brazilian novel by José Lins do Rego *Purity (novel), ''Purity'' (novel), a 2015 novel by Jonathan Franzen **Purity (TV series), ''Purity'' (TV series), a TV series based on the novel *''Purity'', a 2012 novel by Jackson Pearce *''Purity'', a 1998 novel by Shaun Hutson *''Purity'', a 2007 play by Thomas Bradshaw (playwright) *"Cleanness", also known as "Purity", a 14th-century poem Companies *Purity Dairies, a dairy company in Nashville, Tennessee, United States *Purity Factories, a food processing company in St. John's, Newfoundland and Labrador, Canada *Purity Distilling Company, an alcohol manufacturer involved in the Boston Molasses Disaster in the U.S. *Purity FM, a Nigerian radio station *Purity, a former supermarket brand owned by Woolworths Supermarkets (Australia) Film *Purity (film), ''Purity'' (film), a 1916 motion picture *Purity by Anat Zuria *Black oil (The X-Files), Black oil (''The X-Files'') ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ritual Impurity
Ritual purification is a ritual prescribed by a religion through which a person is considered to be freed of ''uncleanliness'', especially prior to the worship of a deity, and ritual purity is a state of ritual cleanliness. Ritual purification may also apply to objects and places. Ritual uncleanliness is not identical with ordinary physical impurity, such as dirt stains; nevertheless, body fluids are generally considered ritually unclean. Most of these rituals existed long before the germ theory of disease, and figure prominently from the earliest known religious systems of the Ancient Near East. Some writers connect the rituals to taboos. Some have seen benefits of these practices as a point of health and preventing infections especially in areas where humans come in close contact with each other. While these practices came before the idea of the germ theory was public in areas that use daily cleaning, the destruction of infectious agents seems to be dramatic. Others have des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aśuddhatā
Aśuddhatā, (Sanskrit Sanskrit (; stem form ; nominal singular , ,) is a classical language belonging to the Indo-Aryan languages, Indo-Aryan branch of the Indo-European languages. It arose in northwest South Asia after its predecessor languages had Trans-cultural ...: अशुद्धता, , lit. means "impurity") is a term most often used by Hindus in South Asia, means ritual impurity or uncleanness. Hindus believe in a duality of purity and impurity. They think that people are both pure and impure and they understand that a person cannot be entirely one or the other. While impurity has a negative connotation, “impurities are thought to be part of everyday life and all humans alternate between relative purity (''suddhatā'') and relative impurity (''aśuddhatā''). It is therefore best that these impurities be avoided as much as possible. ''Chõyāchũyi'' is a form of ''aśuddhatā''. It can be defined as “mutual touching”, which is essentially any form of co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dirty
Dirt is any matter considered unclean, especially when in contact with a person's clothes, skin, or possessions. In such cases, they are said to become dirty. Common types of dirt include: * Debris: scattered pieces of waste or remains * Dust: a general powder of organic or mineral matter * Filth: foul matter such as excrement * Grime: a black, ingrained dust such as soot * Soil: the mix of clay, sand, and humus which lies on top of bedrock. The term 'soil' may be used to refer to unwanted substances or dirt that are deposited onto surfaces such as clothing. Etymology The word ''dirt'' first appears in Middle English and was probably borrowed from the Old Norse , meaning . Exhibitions and studies A season of artworks and exhibits on the theme of dirt was sponsored by the Wellcome Trust in 2011. The centrepiece was an exhibition at the Wellcome Collection showing pictures and histories of notable dirt such as the great dust heaps at Euston and King's Cross in the 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unclean (other)
Unclean may refer to: * Unclean animals, those whose consumption or handling is labeled a taboo * Unclean food, in Jewish dietary custom * Ritually impure, in various religions * Unclean hands, a term in contract law * Unclean (album), ''Unclean'' (album), a 1998 album by Rorschach Test * Unclean (song), "Unclean" (song), from 1984 * Unclean spirit, in Christianity * Unclean vocals, a term for the harsh vocals in metal or punk music See also * Clean and Unclean (other) * Impurity (other) * Aśuddhatā, in Hindu religion * Dirty * Menstrual taboo {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
