TDI

TDI may stand for:

Medicine

Chemistry

Entertainment

Organizations

Other

Toluene diisocyanate

Toluene diisocyanate (TDI) is an organic compound with the formula CH₃C₆H₃(NCO)₂. Two of the six possible isomers are commercially important: 2,4-TDI (CAS: 584-84-9) and 2,6-TDI (CAS: 91-08-7). 2,4-TDI is produced in the pure state, but TDI is often marketed as 80/20 and 65/35 mixtures of the 2,4 and 2,6 isomers respectively. It is produced on a large scale, accounting for 34.1% of the global isocyanate market in 2000, second only to MDI. Approximately 1.4 billion kilograms were produced in 2000.

Synthesis

2,4-TDI is prepared in three steps from toluene via dinitrotoluene and 2,4-diaminotoluene (TDA). Finally, the TDA is subjected to phosgenation, i.e., treatment with phosgene to form TDI. This final step produces HCl as a byproduct and is a major source of industrial hydrochloric acid.

Distillation of the crude TDI mixture produces an 80:20 mixture of 2,4-TDI and 2,6-TDI, known as TDI (80/20). Differentiation or separation of the TDI (80/20) can be used to produce pure 2,4-TDI and a 65:35 mixture of 2,4-TDI and 2,6-TDI, known as TDI (65/35).

Turbocharged direct injection

Turbocharged direct injection or TDI is a design of turbodiesel engines featuring turbocharging and cylinder-direct fuel injection that was developed and produced by the Volkswagen Group (VW AG). These TDI engines are widely used in all mainstream Volkswagen Group marques of passenger cars and light commercial vehicles made by the company (particularly those sold in Europe). They are also used as marine engines in Volkswagen Marine and Volkswagen Industrial Motor applications.

Some TDI engines installed in 2009 to 2015 model year Volkswagen Group cars sold through 18 September 2015 had an emissions defeat device, which activated emissions controls only during emissions testing. The emissions controls were suppressed otherwise, allowing the TDI engines to exceed legal limits on emissions. VW has admitted to using the illegal device in its TDI diesel cars.

In many countries, TDI is a registered trademark of Volkswagen AG.

The TDI designation has also been used on vehicles powered by Land Rover-designed diesel engines. These are unrelated to Volkswagen Group engines.

Noun

A noun (from Latin nōmen, literally meaning "name") is a word that functions as the name of some specific thing or set of things, such as living creatures, objects, places, actions, qualities, states of existence, or ideas.Linguistically, a noun is a member of a large, open part of speech whose members can occur as the main word in the subject of a clause, the object of a verb, or the object of a preposition.

Lexical categories (parts of speech) are defined in terms of the ways in which their members combine with other kinds of expressions. The syntactic rules for nouns differ from language to language. In English, nouns are those words which can occur with articles and attributive adjectives and can function as the head of a noun phrase.

History

Word classes (parts of speech) were described by Sanskrit grammarians from at least the 5th century BC. In Yāska's Nirukta, the noun (nāma) is one of the four main categories of words defined.

The Ancient Greek equivalent was ónoma (ὄνομα), referred to by Plato in the Cratylus dialog, and later listed as one of the eight parts of speech in The Art of Grammar, attributed to Dionysius Thrax (2nd century BC). The term used in Latin grammar was nōmen. All of these terms for "noun" were also words meaning "name". The English word noun is derived from the Latin term, through the Anglo-Norman noun.

Dirty (film)

Dirty is a 2005 American crime drama film directed by Chris Fisher. The film stars Cuba Gooding, Jr. and Clifton Collins, Jr. The film was released in the United States on November 9, 2005.

Plot

Officer Armando Sancho (Clifton Collins, Jr.), a former Mal Creado ("badly created") gang member who is forced to choose between his conscience and his loyalty. Recruited into an undercover, anti-gang unit of the LAPD, Sancho brings his street smarts onto the force that he has sworn to protect. With his partner Salim Adel (Cuba Gooding, Jr.), the two patrol LA's streets the only way they know how—with force.

Cast

Aborym

Aborym are an Italian industrial black metal band from Taranto, Apulia, formed in 1993. The band have described their music as "alien-black-hard/industrial", whilst Allmusic described them as playing "a truly original brand of futuristic black metal [with] jagged samples, electronic drums, and industrial overtones, mak[ing] Aborym's peculiar sound very hard to pin down or define". The name of the band derives from Haborym Sadek Aym, overseer of the twenty-six legions of Hell in a seventeenth-century grimoire.

History

Early years and Kali Yuga Bizarre (1993-1999)

Aborym were originally formed in 1991 or 1992 by bass player and vocalist Malfeitor Fabban, who also played bass for Funeral Oration and keyboards for M.E.M.O.R.Y. Lab. At the beginning the three piece line-up performed covers of bands like Sodom,Celtic Frost,Mayhem,Sepultura,Sarcófago,Morbid,Rotting Christ and Darkthrone. Along with Alex Noia (guitars) and Mental Siege (drums), Fabban recorded the first Aborym demo, the five-track Worshipping Damned Souls, in 1993. The band split up shortly afterwards and were reformed by Fabban in Rome in 1997. With the new members Yorga SM and Sethlans, the second demo (Antichristian Nuclear Sabbath) was recorded that same year. The band struck a deal with the Italian Scarlet Records for two albums.