منابع مشابه
Atmospheric total gaseous mercury (TGM) concentrations
Atmospheric total gaseous mercury (TGM) concentrations and wet and dry deposition of mercury at a high-altitude mountain peak in south China X. W. Fu, X. Feng, Z. Q. Dong, R. S. Yin, J. X. Wang, Z. R. Yang, and H. Zhang State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China Guizhou Environmental Science Research Institut...
متن کاملAn analysis of total gaseous mercury (TGM) concentrations across the UK from a rural sampling network.
Total gaseous mercury was collected at ten sites, which comprise part of the UK rural heavy metals monitoring network, between 2005 and 2008. Using the gold amalgam technique to capture total gaseous mercury, samples were analysed using a Tekran 2537A mercury vapour analyser. The data showed no upward or downward trend in atmospheric mercury concentrations over the period, with 4 year average c...
متن کاملSources and Dynamic Processes Controlling Background and Peak Concentrations of TGM in Nanjing, China
Total gaseous mercury (TGM) data from urban Nanjing, at the western edge of the Yangtze River Delta (YRD) region in China, over nine months, were analyzed for peak and background mercury concentrations. The background concentration of TGM was found to be 2.2 ng∙m. In examining episodic influences of free tropospheric air masses on the surface TGM concentrations in Nanjing, we hypothesize hetero...
متن کاملCommutativity degree of $mathbb{Z}_p$≀$mathbb{Z}_{p^n}
For a nite group G the commutativity degree denote by d(G) and dend:$$d(G) =frac{|{(x; y)|x, yin G,xy = yx}|}{|G|^2}.$$ In [2] authors found commutativity degree for some groups,in this paper we nd commutativity degree for a class of groups that have high nilpontencies.
متن کاملZ Z N -quasialgebras
Recently we have reformulated the octonions as quasissociative algebras (quasialgebras) living in a symmetric monoidal category. In this note we provide further examples of quasialgebras, namely ones where the nonassociativity is induced by a Z Z n-grading and a nontrivial 3-cocycle.
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ژورنال
عنوان ژورنال: Vodohospodářské technicko-ekonomické informace
سال: 2020
ISSN: 0322-8916
DOI: 10.46555/vtei.2020.07.002