منابع مشابه
Vertical distribution of methanogens in the anoxic sediment of Rotsee (Switzerland).
Anoxic sediments from Rotsee (Switzerland) were analyzed for the presence and diversity of methanogens by using molecular tools and for methanogenic activity by using radiotracer techniques, in addition to the measurement of chemical profiles. After PCR-assisted sequence retrieval of the 16S rRNA genes (16S rDNA) from the anoxic sediment of Rotsee, cloning, and sequencing, a phylogenetic analys...
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forty seven sediment cores recovered from the south china sea coasts along the east coast of peninsular malaysia were analysed for as, cd, cr, cu, hg, ni, pb and zn using instrumental neutron activation analysis. the results indicate a homogeneous distribution except for as and pb in all stations. assessment of heavy metal pollution in marine sediments requires knowledge of pre-anthropogenic me...
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Variability and trends in total and vertically resolved stratospheric ozone D. Brunner, J. Staehelin, J. A. Maeder, I. Wohltmann, and G. E. Bodeker Institute for Atmospheric and Climate Science, ETH Zurich, Switzerland Alfred Wegner Institute, Potsdam, Germany National Institute of Water and Atmospheric Research (NIWA), New Zealand now at: Empa – Materials Science and Technology, Dübendorf, Swi...
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Brominated flame retardants (BFRs), hexabromocyclododecanes (HBCDs) and polybrominated diethyl ethers (PBDEs) were detected in three sediment cores and six surface sediments of Tokyo Bay, Japan. HBCDs were detected for the first time in this region with concentrations ranging from 0.056 to 2.3 ng/g dry wt, implying their widespread contamination, even though their concentrations were lower than...
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ژورنال
عنوان ژورنال: Journal of Hydraulic Engineering
سال: 1991
ISSN: 0733-9429,1943-7900
DOI: 10.1061/(asce)0733-9429(1991)117:9(1184)