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Browsing by Title
Now showing items 9985-10004 of 39069
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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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(Федеральное государственное бюджетное образовательное учреждение высшего образования «Сибирский государственный университет геосистем и технологий», 2017)The major factor of well drilling with PDC bit is a dynamic interaction of cutting tool and rock. In this paper non-stationary nonlocal model of inelastic deformations is applied to rock cutting with cutting tool problem. ...
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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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(PANGAEA, 1999-05-24)During Cruise 49 of R/V Dmitry Mendeleev in the Kara Sea (August-September, 1993) chemical-bitumenological studies of bottom sediments were carried out. Hydrocarbons were analyzed by gas-liquid chromatography. It was found ...
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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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(PANGAEA, 2019-01-04)Vegetation height has been derived from Sentinel-1 satellite data acquired in VV mode. Masking based on Sentinel-2 has been applied. Areas with NDVI < 0.4 are excluded for vegetation height retrieval in order to account ...
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(PANGAEA, 2017-03-16)Arctic climate has experienced major changes over the past millennia that are not fully understood in terms of their controls and seasonality. Stable-data from ice wedges in permafrost provide unique information on past ...
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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 ...
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(2002)The theoretical scaling of near-field peak ground acceleration and peak ground velocity with moment magnitude, Mw , is found using an L model of rupture. This scaling matches well with the magnitude scaling of recent ...
Now showing items 9985-10004 of 39069