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	Provedor de dados OMA (1) Autor Gordeev, V. (1) Jambers, W. (1) Shevchenko, V.P. (1) Smekens, A. (1) Van Grieken, R. (1) Palavra-chave Kara Sea (1) Suspended particulate matter X-ray spectroscopy PNE (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 1997 (1) País Belgium (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Characterisation of particulate matter from the Kara Sea using electron probe X-ray micro analysis OMA Jambers, W.; Smekens, A.; Van Grieken, R.; Shevchenko, V.P.; Gordeev, V.. Automated electron probe X-ray micro-analysis (EPXMA) was used to characterise 17,600 individual particles collected in the Kara Sea and in the estuary of the Yenisey River. Samples were obtained by filtering and centrifugation of particles in suspension and from bottom sediments. Multivariate techniques were used to reduce the enormous data sets. By testing hierarchical, non-hierarchical and fuzzy clustering on the centrifuged suspension samples, it was shown that hierarchical clustering is most suitable. The two other clustering methods are very time consuming and in most cases do not add any additional information. This hierarchical clustering of the data matrix results in different particle types which can be apportioned to their possible sources. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Suspended particulate matter X-ray spectroscopy PNE; Kara Sea. Ano: 1997 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2954 Registros recuperados: 1 Primeira ... 1 ... Última

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