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41.
Mironov A. P. Suchilin A. A. Rogozhin E. A. 《Izvestiya Atmospheric and Oceanic Physics》2019,55(10):1517-1525
Izvestiya, Atmospheric and Oceanic Physics - This article presents the results of processing observations of global navigation satellite systems (GNSS) at satellite-geodetic stations located in... 相似文献
42.
A. A. Lutovinov A. I. Mironov R. A. Burenin M. G. Revnivtsev S. S. Tsygankov M. N. Pavlinsky I. V. Korobtsev M. V. Eselevich 《Astronomy Letters》2013,39(8):513-522
Four hard X-ray sources from the INTEGRAL and Swift catalogs have been identified. X-ray and optical spectra have been obtained for each of the objects being studied by using data from the INTEGRAL, Swift, ROSAT, and Chandra X-ray observatories as well as observations with the RTT-150 and AZT-33IK optical telescopes. Two sources (SWIFT J1553.6+2606 and SWIFT J1852.2+8424) are shown to be extragalactic in nature: the first is a quasar, while the recordedX-ray flux from the second is the total emission from two Seyfert 1 galaxies at redshifts 0.1828 and 0.2249. The source IGR J22534+6243 resides in our Galaxy and is an X-ray pulsar with a period of ～46.674 s that is a member of a high-mass X-ray binary with a Be star. The nature of yet another Galactic source, SWIFT J1852.8+3002, is not completely clear and infrared spectroscopy is needed to establish it. 相似文献
43.
A. A. Ginzburg A. B. Manukyan O. K. Mironov A. V. Novikova V. S. Yushchenko 《Water Resources》2011,38(7):944-952
The results of analysis of oscillations of an offshore oil and gas production platform, caused by seismic and other impacts
(ice-field motion, storm wave impact, ship impact on platform supports, mechanism operations, etc.) are given. The analysis
has been based on mathematical modeling of various impacts. Specific features of the inducement of platform mechanical oscillations
as a function of the type of impact have been revealed, and the qualitative distinctions of platform oscillations under different
impacts are described, allowing one to determine accelerometer-mounting sites for revealing seismic events by changes in acceleration
on the platform. 相似文献
44.
The dielectric properties of the bentonite–oil–salt solution mixtures with different water and oil saturation were experimentally studied in the frequency range of 10 kHz to 4 GHz at 25–60 °C. It has been established that besides the region of the Debye water relaxation, there are two more relaxation regions resulting from the interfacial interaction of the mixture components in this frequency range. To describe the dielectric permittivity and equivalent conductivity of the mixture, a spectroscopic model taking into account the multifrequency relaxation is proposed. The dependence of the model parameters on the water saturation and temperatures of the samples has been determined. The experimental data are compared with the modeling results, and the error of prediction for the dielectric permittivity and conductivity of mixture is estimated using the proposed model. 相似文献
45.
The distributional patterns were analyzed for 43 species and 33 genera of echinoderms in the Laptev and East Siberian seas
and for 59 species and 35 genera of the asteroid species in the Arctic Ocean. The probable colonization route through the
Arctic was suggested for each species based on (1) the distributional patterns of the Arctic species, (2) the distributional
patterns of the closely related species, and (3) the location of the center of the diversity of the species belonging to a
certain genus. The species of the Pacific origin prevailed in the asteroid fauna of the Arctic seas. The asteroid species
diversity and the ratio of the species of Pacific origin decreased from the Barents towards the Laptev Sea and increased,
respectively, in the East Siberian and the Chukchee seas. The species range limits were found for 19 species in the East Siberian
Sea compared to only 3 species in the Laptev Sea. The East Siberian Sea was a limiting area for the dispersal of four species
groups: (1) invaders from the North Pacific dispersing along the Asian coast of the Arctic (shallow-water stenobathic species),
(2) invaders from the North Pacific dispersing along the American coast of the Arctic and further on back into the Arctic
along the Eurasian coast (secondarily Atlantic species); (3) originally invaders from the Northern Atlantic; (4) representatives
of the Arctic autochthonous fauna. A great width of the biotic boundaries (i.e., the zones of the species range boundaries
crowding) was typical for the Arctic Basin, which was a sign of their young geological age. 相似文献
46.
S. M. Zhmodik D. K. Belyanin A. G. Mironov V. S. Parkhomenko A. T. Titov T. V. Teplyakova V. G. Tsimbalist A. V. Tatarinov 《Doklady Earth Sciences》2009,427(1):777-782
A complex study of oceanic ferromanganese nodules (FMN) from the abyssal Clarion-Clipperton Fracture Zone and Lamont Guyot (Pacific Ocean) is performed. The concentrations of noble and trace elements are determined by AAS, INAA, and RFA-SR. Furthermore, SEM, and activation autoradiography are applied. Experiments are carried out using Pt, Au, and Ir radionuclides (radioisotope indicator method). 相似文献
47.
M.I. Epov V.L. Mironov S.A. Komarov K.V. Muzalevskii 《Russian Geology and Geophysics》2009,50(1):46-52
Numerical experiments are applied to simulate propagation of broadband pulses which are transmitted by an electric dipole and travel in a uniform oil-bearing formation or in a layered reservoir with an oil-water interface. We calculate the frequency responses of the oil- and water-saturated layers as low-frequency filters for the propagating waves and find the respective cutoff frequencies. Attenuation rates are analyzed in the cases of incident nanosecond and picosecond pulses in uniform oil-bearing formations and those reflected from the oil-water interface. The low frequency filtering of pulses is investigated in terms of its effect on wave energy attenuation during propagation in oil-bearing rocks. 相似文献
48.
We suggest a new inversion method for frequency induction data implying the use of a new parameter, which has a simple analytical form in the case of a uniform subsurface. The new parameter is found from induction numbers measured in the field of a vertical magnetic dipole or a vertical magnetic dipole combined either with a horizontal electrical dipole or with a horizontal magnetic dipole. Compared with the classical methods, the new technique provides better resolved resistivity curves and faithful images of the subsurface at higher frequencies and smaller transmitter-receiver separations. The inversion algorithm is applied to amplitude and amplitude-phase data and provides reliable depth assignment of the detected resistivity layers in the latter case. 相似文献
49.
M.I. Epov V.L. Mironov S.A. Komarov K.V. Muzalevsky 《Russian Geology and Geophysics》2007,48(12):1054-1060
Mathematical modeling was applied to study attenuation of a nanosecond pulse that propagated in an oil-bearing formation and was reflected from the oil-gas or oil-water interfaces. The problem was formulated and solved for propagation of a short electromagnetic Gaussian pulse in a layered hydrocarbon reservoir in the case of excitation by a long electric line. Complex permittivity of oil-bearing rocks was calculated using a refractive mixing dielectric model for oil, saline water, methane, quartz, and bentonite in each layer. We obtained and analyzed space-time diagrams of wave propagation and reflection and estimated effective attenuation for both cases. 相似文献
50.
O. G. Mironov 《洁净——土壤、空气、水》1988,16(3):269-280
Sea entered pollutions, in particular oil and oil products, interact complexly with marine biota. On the one hand, oil causes disfunction of marine communities, death of some marine representatives and sometimes of the whole community. On the other hand, marine organisms and their communities transform pollutions during purification processes improving marine environment quality. It is known, that under pollution conditions the number of aquarium-inhabiting organisms is reduced and only the most resistable species are left. The study of such species opens perspectives for the creation of hydrobiological systems and their purposeful use in cleaning polluted waters and sanitation of coastal aquaria. 相似文献