نتایج جستجو برای: hydrochemistry

تعداد نتایج: 457  

Journal: Pollution 2015

Evaluation of the geochemistry and hydrochemical quality of Bam salt dome located in southern Iran, was conducted in this study. Two composite samples from salt units were collected and analysed by XRD and XRF to determine their mineral and elemental compositions. Water samples were also collected from the only spring in the area and analysed for major anions, cations and some toxic elements. T...

2007
Lance E. Besaw Donna M. Rizzo

[1] A novel data-driven artificial neural network (ANN) that quantitatively combines large numbers of multiple types of soft data is presented for performing stochastic simulation and/or spatial estimation. A counterpropagation ANN is extended with a radial basis function to estimate parameter fields that reproduce the spatial structure exhibited in autocorrelated parameters. Applications invol...

2016
Ali Nawaz Witoon Purahong Robert Lehmann Martina Herrmann Kirsten Küsel Kai U. Totsche François Buscot Tesfaye Wubet

Fungi are one important group of eukaryotic microorganisms in a diverse range of ecosystems, but their diversity in groundwater ecosystems is largely unknown. We used DNA-based pyro-tag sequencing of the fungal internal transcribed spacer (ITS) rDNA gene to investigate the presence and community structure of fungi at different sampling sites of two superimposed limestone aquifers ranging from 8...

Journal: :Vestnik Rossijskogo universiteta družby narodov 2022

The article describes study of the hydrochemistry Taldykol lake system, consisting Big and Small lakes, in city Nur-Sultan. aim work is to assess anthropogenic impact on ecosystem steppe wetlands located center developing capital. Sampling was carried out from 8 sites system autumn 2020. results hydrochemical analysis water samples made it possible level chemical pollution ecosystem, which, due...

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