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1.
In this work the conditions of the formation of low-mineral deep hydrocarbonate sodium waters of oil-and-gas fields are considered.
Analysis of the boron-bromine ratio of reservoir and condensed waters in several fields of Western Siberia shows that the
influx of endogenous high-temperature gas-steam fluids into zones containing sedimentogenic brines is a decisive factor in
the formation of the chemical composition of deep waters that are low in minerals. 相似文献
2.
Frolova N. L. Magritskii D. V. Kireeva M. B. Grigor’ev V. Yu. Gelfan A. N. Sazonov A. A. Shevchenko A. I. 《Water Resources》2022,49(3):333-350
Water Resources - Publications on changes in river water regime in Russia under the conditions of current climate changes are reviewed. Most recent generalizations of such publications are... 相似文献
3.
N. N. Samus’ O. V. Durlevich A. V. Zharova E. V. Kazarovets N. N. Kireeva E. N. Pastukhova D. B. Williams M. L. Hazen 《Astronomy Letters》2006,32(4):263-273
We present a new electronic version of the third volume of the fourth edition of the General Catalogue of Variable Stars (GCVS) that contains data on 13 855 variables in the constellations Pavo-Vulpecula. The Name Lists of Variable Stars from no. 67 to no. 77 were included in the new version. The main distinctive feature of the new version is that improved J2000.0 equatorial coordinates (including those for 6163 stars corrected for the proper motions) based on the identifications with positional catalogues using finding charts and on our new measurements are presented for 13 812 stars. We searched for a number of stars on original plates from the plate stacks of several observatories and using images from digital sky surveys. Apart from the complete update of the positional information, we made several corrections that were found to be necessary after the publication of the GCVS Volume III (1985) and several corrections of the information about the variability features based on photometry from currently available automatic sky surveys. A number of problem identifications are described in detail. The new version completes our long-term work on the complete revision of the positional information in the GCVS. In the Conclusions, we give a list of references to new Internet resources. 相似文献
4.
Elena D. Kireeva Olga B. Popovicheva Natalia M. Persiantseva Mikhail A. Timofeyev Natalia K. Shonija 《Journal of Atmospheric Chemistry》2009,64(2-3):129-147
Combustion-derived particles emitted by various transport engines are analyzed with respect to their morphology and composition. Soot particles collected behind an aircraft gas turbine engine combustor, in the diesel engine exhaust pipe, and at the end of ship pipe demonstrate heterogeneous morphological structures and different chemical identities. Individual particle analysis allows the characterization of emitted soot particles into three fractions, namely C-O, C-O-S, and Fe-C-O, with the dominant presence of chain soot agglomerates, irregular internally mixed soot, and particles of distinct morphology, respectively. The influence of oxygen and sulfur concentrations on the ability of soot to uptake water is proposed as a method for categorizing transport engine-generated particles. Categories of hydrophobic and hydrophilic particles within non-hygroscopic soots can be defined based on the amount of water uptake relative to several reference laboratory-made soots comparable to transport engine emissions. This method of characterizing hydrophobic/hydrophilic and hygroscopic soots in combustion emissions will help to determine the potential impacts of the combustion emissions on CCN/IN formation in the atmosphere. 相似文献
5.
E. V. Kazarovets N. N. Samus’ O. V. Durlevich N. N. Kireeva E. N. Pastukhova G. Pojmanski 《Astronomy Reports》2009,53(11):1013-1019
We present a new electronic version of the General Catalog of Variable Stars (GCVS) based on the new IAU name list of confirmed
variable stars. The catalog contains 1270 stars, most of them contained earlier in the New Catalog of Suspected Variable Stars
or its supplement. A number of recent studies—including those by authors of the catalog, who investigated many stars using
data from modern automatic surveys, determined light-curve elements for periodic stars, and plotted numerous light curves—have
made it possible to move these stars to the GCVS. Among the catalog objects, 24 stars are novae or other unusual variable
stars that acquired their GCVS names out of the usual order, upon communication from the Bureau of Astronomical Telegrams
of the International Astronomical Union. We present the GCVS names, coordinates, classifications (in two forms: the GCVS system
and a new, proposed system), brightness-variation limits, and light-curve elements for the catalog stars, as well as bibliographic
references and remarks when necessary. We discuss several catalog stars that are of astrophysical interest or caused problems
during the compilation of the catalog. 相似文献
6.
A. D. Grichuk T. A. Kireeva V. K. Utoplennikov 《Moscow University Geology Bulletin》2013,68(2):132-139
A thermodynamic method for the determination of the solubility of a mixture of carbon dioxide and hydrocarbon gases in oil is elaborated on the basis of stage-oil separation. A method for the calculation of Henry’s constants for gases that are dissolved in oil and their temperature extrapolation are shown. Effective thermodynamic properties are estimated for carbon dioxide and C1–C8 hydrocarbon gases dissolved in oil. A thermodynamic model that satisfactorily describes the separation of gas from oil is created and may be included in a more complex calculation model of carbonate scaling during the exploitation of oil deposits. 相似文献
7.
A new class of figures of equilibrium for a rotating gravitating fluid located inside a gravitating ring or torus is studied. These figures form a family of sequences of generalized oblate spheroids, in which there is for any value of the tidal parameter α in the interval 0 ≤ \(0 \leqslant \frac{\alpha }{{\pi G\rho }} \leqslant 0.1867\) ≤ 0.1867 a sequence of spheroids with oblatenesses emin (α) ≤ e ≤ emax (α). A series of classicalMaclaurin spheroids from a sphere to a flat disk is obtained for α = 0. At intermediate values 0 < α ≤ αmax, there are two limiting non-rotating spheroids in each sequence. When α = αmax, the sequence degenerates into a single non-rotating spheroid with ecr ≈ 0.9600, corresponding to the maximum oblateness of E7 elliptical galaxies. The second part of the paper considers the influence of rings of dark matter on the dynamics of elliptical galaxies. It is proposed that the equilibrium of an oblate isolated non-rotating galaxy is unstable, and it cannot be supported purely by anisotropy of the stellar velocity dispersion. A ring of dark matter can stabilize a weakly rotating galaxy, supplementing standard dynamical models for such stellar systems. In order for a galaxy to acquire appreciable oblateness, the mass of the ring must be an order of magnitude higher than the mass of the galaxy itself, consistent with the ratios of the masses of dark and baryonic matter in the Universe. The influence of massive external rings could shed light on the existence of galaxies with the critical oblateness E7. 相似文献
8.
Rets E. P. Kireeva M. B. Samsonov T. E. Ezerova N. N. Gorbarenko A. V. Frolova N. L. 《Water Resources》2022,49(1):23-37
Water Resources - An algorithm for automated graph-analytical separation of hydrograph, underlying grwat software package is described in detail and analyzed. This system is designed for separation... 相似文献
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10.
Water Resources - Among all hydrological factors, water regime characteristics have always received special attention as integral parameters of the hydrological conditions of a water body, because... 相似文献