Results 21 to 30 of about 279,843 (214)
Nitrogen oxides in the troposphere – What have we learned from satellite measurements?
Nitrogen oxides are key species in the troposphere where they are linked to ozone formation and acid rain. The sources of nitrogen oxides are anthropogenic to large extend, mainly through combustion of fossil fuels.
Richter A.
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Air pollution by nitrogen oxides in Sarajevo from 2005 to 2010
Introduction: Air pollution occurs when the concentration of certain substances (pollutants) reaches a size which causes its toxicity, or in other words, begins to cause harm to human health, fl ora and wildlife.
Suad Habeš +3 more
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REDUCTION OF NOx BY MEANS OF UREA INJECTION -ROVINARIPOWER PLANT CASE [PDF]
The paper examines how nitrogen in the fuel is a pollutant. The mechanism of formation of nitrogen oxides is presented: is a function of excess air, coal age (volatile matter content), and function of temperature in the
Lucica Anghelescu
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Cu-Mg-Fe-O-(Ce) complex oxides as catalysts of selective catalytic oxidation of ammonia to dinitrogen (NH3-SCO) [PDF]
Multicomponent oxide systems 800-Cu-Mg-Fe-O and 800-Cu-Mg-Fe-O-Ce were tested as catalysts of selective catalytic oxidation of ammonia to dinitrogen (NH3-SCO) process.
Górecka, Sylwia +5 more
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The operation optimization of low nitrogen combustion, denitrification and desulfurization facility of a 335 MW coal-fired unit met ultra-low requirements has been conducted in order to lower energy and material consumption.
Bing Li, Kai Wang, Baoying Zhu
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Abstract In a series of recent papers, Kiess and collaborators have announced the identification of nitrogen peroxide on Mars and have attempted to interpret a wide range of Martian phenomena in terms of nitrogen oxides. Analyses of observations at a variety of wavelengths in the present paper, and previously by Sinton, Spinrad and Moroz, place a ...
Carl Sagan +2 more
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Shipping nitrogen oxides recycling via isoprene nitrate amplifies forest ozone
Forests are essential for climate stability, yet elevated ozone levels-exacerbated by poorly understood impacts of shipping-related nitrogen oxides, stress these ecosystems.
Chunshui Lin +5 more
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Observations of total RONO2 over the boreal forest: NO x sinks and HNO3 sources [PDF]
In contrast with the textbook view of remote chemistry where HNO 3 formation is the primary sink of nitrogen oxides, recent theoretical analyses show that formation of RONO2 (ΣANs) from isoprene and other terpene precursors is the primary net chemical ...
Apel, E +13 more
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Global deposition of total reactive nitrogen oxides from 1996 to 2014 constrained with satellite observations of NO2 columns [PDF]
Reactive nitrogen oxides (NOy) are a major constituent of the nitrogen deposited from the atmosphere, but observational constraints on their deposition are limited by poor or nonexistent measurement coverage in many parts of the world.
Geddes, Jeffrey A., Martin, Randall V.
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A Mathematical Modelling of Nitrogen Oxide Formation in a cng Spark Ignition Engine
Nitrogen oxides occupy aspecific position among gaseous harmful emissions produced by combustion engines. This position may externally appear as a coherence between energetic and ecological properties of the engine.
Vladimir Hlavna, Daniela Zvarkova
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