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Browsing ELibrary by Title
Now showing items 2347-2366 of 21934
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(2002)Defect structure and the defect formation in mullites and sillimanites have been investigated using computer simulation techniques. From point defect chemistry and computer simulations, oxygen vacancies are identified as ...
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(2004)Cation distributions (CDs) in the representative collection of trans-vacant dioctahedral celadonites, glauconites and ferriillites were investigated using Mössbauer and IR spectroscopies and the original approach. The ...
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(1998)The lattice dynamics computer code PARAPOCS was successfully used to calculate the 240 vibrational frequencies of pyrope garnet, Mg 3 Al 2 Si 3 O 12 , at ambient conditions. The atomic displacement vectors (eigenvectors) ...
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(2003)Computer speciation models of antimony in aqueous, multicomponent solutions of environmental and biological interest have been developed. Antimony is an element of increasing environmental significance but one whose chemical ...
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(2001)Principles of construction of computer-aided systems for physical modeling of block geological medium behavior have been developed. This has made it possible to create the computer-aided systems. Behavior of the block ...
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(2001)Process of mining the inclined deposits has been considered. Mathematical model of the process has been developed. Conditions of open pit at the deposit have been discussed. Algorithm of determining the blocks of open pit, ...
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(2004)A real-time computerized tomography (CT) scanning equipment was developed for studying the damage evolution law of rocks during triaxial compression tests. The CT unit gave all information of the materials with different ...
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(2001)Scheme for concentrating the zeolite-bearing basaltoids of Margintujskoe volcanic field in Baikal region has been offered. Comparative study of physicochemical and adsorption properties of synthetic and natural shabasite ...
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(1989)Physicochemical equilibria in systems that comprise solid phases with defect crystal lattices are now a major subject of study. The authors describe the quantitative analysis of the degree of concentration of microimpurities ...
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(2001)Average concentrations of platinum-group elements (PGE) are reported for the stratiform chromitites of layered massifs and the podiform chromitites of ophiolitic and zonal massifs of the Ural-Alaska type. The level of PGE ...
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(2001)Helium and argon concentrations and isotopic compositions have been determined for a suite of fresh alpine-type peridotites from the Horoman ultramafic complex, Hokkaido, Japan. Crushing and heating gas extractions on the ...
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(2001)The differences in 3He/4He ratios between mid-oceanic ridge basalts (MORBs) and ocean island basalts (OIBs) require the existence of at least two distinct mantle reservoirs that have been preserved over long periods of the ...
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(2001)Silicon carbide grains and graphite spherules containing TiC inclusions are found in the Murchison carbonaceous chondrite. The high 44Ca (from 44Ti) and 28Si contents of these grains are strong evidence that all three ...
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(2000)Full equilibrium calculations of the sequence of condensation of the elements from cosmic gases made by total vaporization of dust-enriched systems were performed in order to investigate the oxidation state of the resulting ...
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(2002)In many earth sciences applications, the geological objects or structures to be reproduced are curvilinear, e.g., sand channels in a clastic reservoir. Their modeling requires multiple-point statistics involving jointly ...
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(2002)This paper presents a conditional simulation procedure that overcomes the limits of gaussian models and enables one to simulate regionalized variables with highly asymmetrical histograms or with partial or total connectivity ...
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(2002)This paper presents a new approach to the LU decomposition method for the simulation of stationary and ergodic random fields. The approach overcomes the size limitations of LU and is suitable for any size simulation. The ...
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(2002)Assessment of uncertainty in the performance of fluvial reservoirs often requires the ability to generate realizations of channel sands that are conditional to well observations. For channels with low sinuosity this problem ...
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(2002)Earthquake focal depth distributions and effective elastic thickness variations on the continents suggest that in old cold regions such as shields, the lower continental crust can be stronger than the upper mantle, and ...
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(2003)The critical Rayleigh number for convective flow of pore water through a permeable spherical body is derived. The result affords constraints on carbonaceous chondrite planetesimal sizes and rates of heat production. If the ...
Now showing items 2347-2366 of 21934