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Browsing ELibrary by Title
Now showing items 9619-9638 of 21934
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(1987)The authors analyze the lateral time variation in longitudinal-wave velocities in the crust of a seismically active region. This required data from long-term seismic observations with controlled wave generators in dense ...
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(1996)Geochemical codes are used to identify the processes (speciation, solubility, and adsorption) controlling both natural water and waste leachate compositions. The uncertainties in geochemical calculations are important to ...
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(2004)Near-receiver material properties are required for the separation of the recorded wavefield into upgoing and downgoing P and S waves, and are also important for static time-shift corrections. However, it is difficult, ...
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(2001)Capabilities of the polarisation method vertical sesmic profiliring – PM VSP and logging to prediction collectors properties of geological section in near borehole space are considered. Fractured-porous collectors with ...
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(1989)A kimberlite pipe found in Yakutia differs sharply in geologic structure from those studied earlier. Drillhole in kimberlite-hosting marls of the Kyllakh formation penetrated bands and lenses of andradite-grossular skarn ...
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(2006)The reactivity of colloidal particles is regulated by their surface properties. These properties affect the wettability, flocculation-dispersion characteristics, ion exchange, sorption capacities and transport of inorganic ...
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(2003)Regularities of influence of a single-phase (SP) oxidation and a subsequent decomposition of synthetic titanomagnetites (TM) of a different original composition (Fe3-x TixO4 (where x = 0.2, 0.4 and 0.6)) upon the change ...
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(2001)Approximate formulae for PP reflection/transmission (R/T) displacement coefficients for weak contrast interfaces separating weakly anisotropic media of an arbitrary symmetry are presented. The coefficients have a form of ...
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(2006)По целому самцу хорошей сохранности из юрского местонахождения Даохугоу (Северо-Восточный Китай) описан новый вид Proptychopterina opinata sp. nov. Обсуждается распространение Proptychop-terina, приводятся уточненный диагноз ...
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(2001)Opportunities for development of deposits of polymetallic ores of Ozernyj ore field have been considered. The ore contains many elements including zinc and lead. Review of technological schemes for processing the ores has ...
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(2004)Based on own laboratory experience and a literature review, techniques for processing of different sedimentary lithologies and microscopical investigation in Neoproterozoic-Cambrian sequences are described. Emphasis is ...
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(2003)We are in the process of developing a small portable absolute gravimeter that employs a cam-based dropping mechanism. The resulting high data rate (100 drops in 30 s) serves to compensate for the short (2 cm) dropping ...
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(2001)Generation of electric energy at various power stations including those operating on pulverized coal has been considered. It has been shown that generation of electric energy with the use of the pulverized coal is the most ...
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(2001)The notion of the term "advance time" for tsunami warnings is examined, as is the potential of the existing Kamchatkan service of fast tsunami warning for conveying alarm messages to sites of human settlement on the Pacific ...
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(2002)Lower crustal garnet granulite xenoliths from beneath the Kola-Karelian domain of the Fennoscandian Shield (Russia) were brought to the surface in Devonian lamprophyre diatremes. To establish the relationships between ...
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(2004)The southern East Uralian Zone consists of granite-gneiss complexes that are embedded in geological units with typical oceanic characteristics. These gneisses have been interpreted as parts of a microcontinent that collided ...
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(1995)The concentration of H+ which reacts with an adularia surface, [H+s], was measured with acid-base titrations of adularia powder-water suspensions. Due to the complexity of feldspar surface reactions, it was necessary to ...
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(2004)Bacterial surface adsorption can control metal distributions in some natural systems, yet it is unclear whether natural bacterial consortia differ in their adsorption behaviors. In this study, we conduct potentiometric ...
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(2000)An experimental investigation of proton binding to a humic acid, and of the co-adsorption of humic acid and Pb(II) to the corundum surface was conducted in 0.01 M NaNO3. We attempt to model the acid-base properties of the ...
Now showing items 9619-9638 of 21934