The interaction of surface waves in the presence of wind     

V. A. Kalmykov 《Physical Oceanography》1996,7(2):91-97

Zakharov's equation is applied to study numerically the evolution of wave amplitudes. It is demonstrated that, owing to Krasitskii's new kernel functions, the system of surface waves remains Hamiltonian, in contrast to the former approaches used by Yuen, Lake, and Zakharov. If surface waves are wind-generated, they grow and become stochastic. If the effect of the waves on the wind is considered, then the wave amplitude evolution, similar to the no-wind case, continues to be recurrent. Translated by Vladimir A. Puchkin.  相似文献   

An Anisotropic Cosmic-Ray Enhancement Event on 07-June-2015: A Possible Origin     

Agnieszka Gil  Gennady A. Kovaltsov  Vladimir V. Mikhailov  Alexander Mishev  Stepan Poluianov  Ilya G. Usoskin 《Solar physics》2018,293(11):154

A usual event, called anisotropic cosmic-ray enhancement (ACRE), was observed as a small increase (\({\leq}\,5\%\)) in the count rates of polar neutron monitors during 12?–?19 UT on 07 June 2015. The enhancement was highly anisotropic, as detected only by neutron monitors with asymptotic directions in the southwest quadrant in geocentric solar ecliptic (GSE) coordinates. The estimated rigidity of the corresponding particles is \({\leq}\,1\) GV. No associated detectable increase was found in the space-borne data from the Geostationary Operational Environmental Satellite (GOES), the Energetic and Relativistic Nuclei and Electron (ERNE) on board the Solar and Heliospheric Observatory (SOHO), or the Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics (PAMELA) instruments, whose sensitivity was not sufficient to detect the event. No solar energetic particles were present during that time interval. The heliospheric conditions were slightly disturbed, so that the interplanetary magnetic field strength gradually increased during the event, followed by an increase of the solar wind speed after the event. It is proposed that the event was related to a crossing of the boundary layer between two regions with different heliospheric parameters, with a strong gradient of low-rigidity (\({<}\,1\) GV) particles. It was apparently similar to another cosmic-ray enhancement (e.g., on 22 June 2015) that is thought to have been caused by the local anisotropy of Forbush decreases, with the difference that in our case, the interplanetary disturbance was not observed at Earth, but passed by southward for this event.  相似文献   

Nuclear fuel cycle and its impact on the environment     

B. F. Myasoedov  S. N. Kalmykov  Yu. M. Kulyako  S. E. Vinokurov 《Geochemistry International》2016,54(13):1156-1167

In this paper, we consider the present-day situation and outlooks of the development of nuclear power generation in Russia and other countries. It was noted that the implementation of the concept of a closed nuclear-fuel cycle accepted in Russia relies on the solution of the problem of the disposal of spent nuclear fuel (SNF) and radioactive waste (RAW). This paper presents the main results of investigations focused on the development of radiation-safe methods of manufacturing nuclear fuel elements, including mixed uranium–plutonium oxide fuel for fast-neutron reactors; creation of low waste-production technologies of SNF processing and RAW disposal; and the analysis of fundamental features of the behavior and speciation of radionuclides in environmental objects for the development of efficient methods of radioecological monitoring and remediation of radionuclide-contaminated areas.  相似文献   

The phosphate-containing interlayers of the Bazhenov Formation as potential reservoirs     

A. G. Kalmykov  E. A. Manuilova  G. A. Kalmykov  V. S. Belokhin  N. I. Korobova  O. M. Makarova  E. V. Kozlova  R. A. Khamidullin  V. A. Shishkov  A. G. Ivanova 《Moscow University Geology Bulletin》2016,71(6):429-435

The possible reservoir type of the Bazhenov Formation relative to the intervals enriched in phosphates (apatite varieties) is described in this work. The phosphate rocks are characterized by a highly developed pore space; their porosity can reach up to 14%. Along with this, these rocks have explicit geochemical characteristics of oil-reservoir rocks in comparison with other rock samples in the well. As an example, the productivity index and oil-saturation index for phosphates are twice as high as the background values. The composition of such rocks can slightly vary: fluorine can be observed in phosphate minerals, while the rock is always enriched in organic matter (>8 wt %).  相似文献   

The nature of scattered and concretion pyrite in the Upper Abalak Formation of the Salym oil field (Western Siberia)     

A. Iu. Iurchenko  N. Takahata  K. Tanaka  Y. Sano  N. S. Balushkina  G. A. Kalmykov 《Moscow University Geology Bulletin》2016,71(6):466-471

Dispersed and concretionary pyrite in chert–clay–carbonate and carbonate rocks of the Abalak Formation (Salym oil field) have been studied. The study was conducted using Scanning Electron Microscopy (SEM), Electron Probe Microanalysis (EPMA), and high spatial resolution Secondary Ion Mass Spectrometry (Nano-SIMS). As a result, three morphological groups of pyrite have been distinguished: large cubic crystals, framboidal pyrite, and fine-crystal aggregates that replace organic remnants. The sulphur isotope ratio allows one to distinguish two genetic types of pyrite. The source of the sulphur for the first genetic group was H₂S produced by bacterial sulphate reduction, while the second group pyrite was formed with sulphur as a product of thermochemical sulphate reduction.  相似文献   

The hydrocarbon-generation potential of the Domanik rocks in the Volga–Ural petroliferous basin     

N. P. Fadeeva  E. V. Kozlova  E. N. Poludetkina  T. A. Shardanova  N. V. Pronina  A. V. Stupakova  G. A. Kalmykov  A. N. Khomyak 《Moscow University Geology Bulletin》2016,71(1):41-49

The factors that are responsible for the formation of the hydrocarbon-generation potential and its occurrence in the Devonian carbonate sequences (Domanik Formation) of the Volga–Ural petroliferous basin are considered. The rocks of this formation are characterized by a high generation potential that is sufficient for the formation of large oil and gas accumulations. The highly carbonaceous deposits lack reservoirs.  相似文献   

A Polychronous Locality of Megafauna on the Northwestern Coast of Lake Baikal     

Kalmykov  N. P.  Budaev  R. Ts. 《Doklady Earth Sciences》2018,483(2):1487-1490

Doklady Earth Sciences - Based on geochronological data, it is shown that the formation of sediments of a 50–80 m terrace of Lake Baikal occurred during the Middle Pleistocene and its top...  相似文献   

The Composition and Reservoir Properties of the Deposits of the Bazhenov Formation in the Central Part of the Tundrin Depression     

O. M. Makarova  N. I. Korobova  A. G. Kalmykov  G. A. Kalmykov 《Moscow University Geology Bulletin》2018,73(2):213-217

The section structure was characterized according to the lithological and petrophysical studies of the core from the Bazhenov Formation that has been uncovered in the central part of the Tundrin Depression. The productive oil intervals where the reservoirs of the pore and fissure-pore types occur were identified.  相似文献   

A Thermodynamic Model of the Water–Rock Interaction under Hydrothermal Exposure of the Bazhenov Formation     

E.?S.?SidkinaEmail author  I.?A.?Bugaev  A.?Yu.?Bychkov  A.?G.?Kalmykov 《Moscow University Geology Bulletin》2018,73(4):375-379

Thermodynamic modeling of the hydrothermal exposure of the rocks of the Bazhenov Formation resulted in revealing the equilibrium mineral associations at 50–350°C and the pressure of saturated water vapor. The calculation results show that mineral parageneses varied slightly with the increase of temperature. Thus, zeolites were characterized by the stilbite–laumontite–wairakite series; kaolinite, pyrite, dolomite, and brannerite were replaced by montmorillonite and/or albite, pyrrhotite, calcite, and uraninite, respectively. The modeling results were confirmed in experiments.  相似文献   

Granitoid Massifs of the Krasnoleninsky Arch in Western Siberia: Composition,Structure, Age,and Formation Conditions     

Khotylev  A. O.  Mayorov  A. A.  Khudoley  A. K.  Ershova  V. B.  Kalmykov  G. A.  Khubanov  V. B.  Chervyakovskaya  M. V. 《Geotectonics》2021,55(2):219-239

Geotectonics - In our research we summarized data obtained on the composition, structure, and geochemical characteristics of the granitoid plutons of the eastern part of the Krasnoleninsky arch of...  相似文献