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1-Nitropyrene is a by-product of combustion and is the predominant nitrated polycyclic aromatic hydrocarbon emitted in a diesel engine. [ 1 ] 1-Nitropyrene is listed as an IARC Group 2B carcinogen , [ 2 ] indicating it is possibly carcinogenic to humans.
[8] [9] [10] However, the lean-burning nature of diesel engines and the high temperatures and pressures of the combustion process result in significant production of NO x (gaseous nitrogen oxides ), an air pollutant that constitutes a unique challenge with regard to their reduction.
A non-SI, metric unit of length equal to 10 −10 metre, i.e. 1 ⁄ 10000000000 of a metre or 0.1 nanometre. The angstrom is commonly used in the natural sciences to express microscopic or atomic-scale distances, including the sizes of atomic nuclei, wavelengths of electromagnetic radiation, and lengths of chemical bonds (e.g. the covalent ...
The synonyms are grouped into synsets with short definitions and usage examples. It can thus be seen as a combination and extension of a dictionary and thesaurus. Its primary use is in automatic text analysis and artificial intelligence applications.
Geiriadur Prifysgol Cymru an online dictionary of the Welsh language; Plena Ilustrita Vortaro de Esperanto Esperanto dictionary; Reta Vortaro Esperanto dictionary; Susning.nu free Swedish online dictionary, opened 2001, now defunct; Svenska Akademiens ordbok Swedish dictionary; Van Dale dictionary of the Dutch language; William Whitaker's Words ...
CHICAGO (CBS) -- Dozens more victims have come forward claiming they were sexually assaulted while in juvenile correction centers run by the state of Illinois and Cook County.
Thesaurus Linguae Latinae. A modern english thesaurus. A thesaurus (pl.: thesauri or thesauruses), sometimes called a synonym dictionary or dictionary of synonyms, is a reference work which arranges words by their meanings (or in simpler terms, a book where one can find different words with similar meanings to other words), [1] [2] sometimes as a hierarchy of broader and narrower terms ...
The original edition had 15,000 words and each successive edition has been larger, [3] with the most recent edition (the eighth) containing 443,000 words. [6] The book is updated regularly and each edition is heralded as a gauge to contemporary terms; but each edition keeps true to the original classifications established by Roget. [2]