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Browsing ELibrary by Title
Now showing items 5943-5962 of 21934
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(2002)Time series of near-bed sediment, water-level and velocity were measured in the field and laboratory and analysed to investigate (a) the role of breaking/broken waves, (b) the predominance of infragravity-scale transport ...
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(2001)When Pseudomonas aeruginosa PAO1 biofilms (attached to Sepharose surfaces) were subjected to dissolved Fe3+, most Fe was removed from solution within 25 h by surface complexation with negatively charged functional groups ...
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(2005)Smectites are considered to be an important component in backfill barriers due to their marked swelling and high cation exchange capacity. Both properties are affected considerably when these clays transform under natural ...
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(1997)Detailed studies of meh incIusions in synthetie pericIase, obtained from natural magnesite by are-fusion, showed that their eompositions essentially differ from the composition of the starting melt. They are to a greater ...
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(1990)The interaction between dissolved H2O and melt structure on the join CaAl2O4SiO2H2O has been studied with Raman spectroscopy. The total H2O contents ranged from 3 to 10 wt.% with. The spectra are consistent with formation ...
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(2006)This work is devoted to characterization of zinc interaction in aqueous solution with two marine planktonic (Thalassiosira weissflogii = TW, Skeletonema costatum = SC) and two freshwater periphytic species (Achnanthidium ...
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(2001)Thermodynamic simulation was conducted for the systems of the main rock types and seawater of different concentration degrees. The simulation results indicate that the interaction between both meteoric waters and seawaters ...
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(2001)The influence of surface-bound fulvic acid on the sorption of Cu(II) to colloidal hematite particles was studied experimentally and the results were compared with model calculations based on the linear additivity assumption. ...
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(1996)Coprecipitation experiments from aqueous solution at room temperature reveal that divalent Co, Zn, Cd, and Ba exhibit different preferences for incorporation among multiple surface sites present on the calcite {1014} face ...
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(2002)Two decades after their birth, the validity of fault slip inversion methods is still strongly debated. These methods are based upon a very simplified mechanical background, the Wallace-Bott hypothesis. Following previous ...
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(1995)Replacement of carbonate minerals by silica polymorphs in marine and meteoric environments is a common early diagenetic feature of sedimentary rocks. Although relatively few experimental investigations have been made of ...
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(2002)The interactions between groundwater and surface water are complex. To understand these interactions in relation to climate, landform, geology, and biotic factors, a sound hydrogeoecological framework is needed. All these ...
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INTERACTIONS BETWEEN METAL OXIDES AND SPECIES OF NITROGEN AND IODINE IN BIOTURBATED MARINE SEDIMENTS (2000)By using a gold amalgam (Au/Hg) voltammetric microelectrode, we have measured simultaneously and with millimeter resolution the distributions of O2, Mn(II), Fe(II), I(-I), and HS(-I) in bioturbated sediment cores from the ...
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(1996)Sorption of copper and sulfate onto goethite (α-FeOOH) in aqueous solution is examined in Cu-SO4 binary-sorbate systems and in Cu-SO4-organic acid (either phthalic acid or chelidamic acid) ternary-sorbate systems. Compared ...
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(1997)The conversion of combined nitrogen (ammonia, nitrate, organic nitrogen) to dinitrogen (N2) in marine sediments, an important link in the global nitrogen cycle, is traditionally assumed to take place only via the coupled ...
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(2000)Toxic metal ions can bind to the surface of minerals in a number of ways including chemisorption, physisorption, precipitation, and cation exchange. We have used atomistic simulation techniques and a set of specific ...
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(2003)Climatologists have identified and started to explain a range of different modes of climatic variability which seem to be essential components of behaviour of the global climatic system. Of potentially high geomorphological ...
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(1998)The 40Ar39Ar dating method depends on accurate intercalibration between samples, neutron fluence monitors, and primary 40Ar40K (or other external) standards. The 40Ar39Ar age equation may be expressed in terms of ...
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(2005)The skeletal oxygen isotope ratio of Porites corals is the most frequently used proxy of past seawater temperature and composition for tropical and subtropical oceans. However, field calibration of the proxy signals is ...
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(2003)In this study, sensitivities of 10 land-surface schemes (LSS) to five prescribed model parameters (i.e. the maximum soil moisture content (MSMC), effective available water content (EAWC), Clapp-Hornberger B parameter, leaf ...
Now showing items 5943-5962 of 21934