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Browsing ELibrary by Title
Now showing items 8096-8115 of 21879
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(1990)Recent experimental studies of the nonlinear transformation of long waves in shallow waters indicate that the process involves the generation of higher harmonics that distort the shape of the long wave. To describe the ...
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(2001)A nonlinear tomographic inversion method that uses first-arrival travel-time and amplitude-spectra information from cross-hole radar measurements was developed to simultaneously reconstruct electromagnetic velocity and ...
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(1988)During the eruption of the Klyuchevskiy volcano in March-June 1983, acoustic signals associated with explosive action in the Predskazannyy secondary crater and the summit crater were recorded. The activity of the summit ...
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(2004)We develop a rock physics model based on nonlinear elasticity that describes the dependence of the effective stiffness tensor as a function of a 3D stress field in intrinsically anisotropic formations. This model predicts ...
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(2001)To study the effects of nonlinearity in the seismic response of soils, a numerical simulation of the propagation of vertically incident seismic waves in horizontal soil layers were performed. Shear noiselike and monochromatic ...
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(1990)In many problems in nonlinear seismoacoustics one requires reliably measured in-situ data on the square of the elastic nonlinear response (SENP) or rocks. In this paper we present the first experimental measurements of ...
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(1999)In this paper we investigate the presence of chaos in the system that underlies the Phanerozoic 87Sr/86Sr isotope record of seawater carbonates by means of nonlinear time series analysis. The Fourier power spectrum estimation ...
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(1996)The applications of the tools of nonlinear time-series analysis to measurements obtained by digital ionosonde “PARUS,” created at IZMIRAN, is considered. Small-scale structure of the electron density Ne at F-region of ...
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(2003)Mechanisms by which dissimilatory iron-reducing bacteria utilize iron and manganese oxide minerals as terminal electron acceptors for respiration are poorly understood. In the absence of exogenous electron shuttle compounds, ...
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(2003)The enantiomeric and carbon-isotopic composition of the amino acid isovaline have been analyzed in several samples of the Murchison meteorite and one sample of the Murray meteorite. l-Enantiomeric excesses of the amino ...
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(2002)By extending the product and product-sum space-time covariance models, new families are generated as integrated products and product-sums. These include nonintegrable space-time covariance models not obtainable by the ...
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(2004)A new 7.5-yearlong time series of hourly estimates of nontidal ocean angular momentum, representing signals forced by 6-hourly surface atmospheric pressure and winds including those forced by the atmospheric tides, is used ...
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(2004)The Norilsk mining district is located at the northwest margin of the Tunguska basin, in the centre of the 3,0004,000km Siberian continental flood basalt (CFB) province. This CFB province was formed at the Permo-Triassic ...
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NORMAL ALKANES IN METEORITES: MOLECULAR δ13C VALUES INDICATE AN ORIGIN BY TERRESTRIAL CONTAMINATION (2001)In the time period since 1961, n-alkanes (straight-chain hydrocarbons) have been detected in varying amounts in many meteorites. Proposed origins for these compounds have included extraterrestrial biotic, extraterrestrial ...
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(2004)The problem of developing a normal model of the electric conductivity of the continental lithosphere is currently at the level of discussion, despite more than half a century of the deep electromagnetic sounding. In the ...
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(2003)Burial histories of the eastern, central and western parts of the Northern Caucasus basin are reconstructed on the basis of well data and seismic sections. Subsidence began in the Early Triassic after the Late Carbonifer ...
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(1996)This paper continues the description of volcanic activity at the Northern group of Kamchatkan volcanoes since 1935. The period described embraces the years of 1990, 1991, and 1992. The paper describes the evoluton of ...
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(2003)The possibility that ice-free areas existed during the late Weichselian glaciation of the Svalbard archipelago has been debated for several decades. This study reveals the first geologic evidence that nunataks existed on ...
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(2001)Multichannel seismic reflection data, acquired by MAGE in 1990, provide the first view of the geological structure of the East Siberian Sea between 76.5–80N and 152–164E. This northwestern part of the East Siberian Margin ...
Now showing items 8096-8115 of 21879