The Distortion of Microlensing by the Mass Distribution of our Galaxy     

A.F. Zakharov  M.V. Sazhin 《Astrophysics and Space Science》1997,252(1-2):373-374

  相似文献   

The Second All-Russia Conference on the Jurassic System of Russia: Problems of Stratigraphy and Paleogeography     

V. A. Zakharov  M. A. Rogov  O. S. Dzyuba  D. N. Kiselev 《Stratigraphy and Geological Correlation》2008,16(3):343-346

  相似文献   

Preliminary analysis of the self-similarity of the aftershocks of the Japanese earthquake on March 11, 2011     

V. S. Zakharov 《Moscow University Geology Bulletin》2012,67(2):133-137

The quantitative parameters of the self-similarity of the aftershocks of the Japanese earthquake on March 11, 2011 were obtained. The parameters p in the Omori law (1.06), b in the Gutenberg-Richter law (0.61), and the fractal dimension (D) of the earthquake epicenters (1.52) were determined. Self-similarity is manifested in a range of two orders of temporal and spatial scales and four units of magnitude. The stability in time of parameter p and spatial variations in b and p parameters were revealed.  相似文献   

Impact of lunisolar tides on the iceberg runoff in Antarctica     

V. G. Zakharov  N. S. Sidorenkov 《Russian Meteorology and Hydrology》2013,38(2):94-99

Regular variation in the solid runoff of Antarctic glaciers with the period of 18.6 years is revealed as a result of long-term observations. It is demonstrated that the periodicity of the solid runoff correlates with the 18.6-year periodicity of the Earth’s angular velocity variations caused by the 18.6-year cyclicity of the variability of lunisolar tides. It is revealed that the vibratory gravitational sliding of glaciers to the sea is registered due to the tidal fluctuations along with many climate processes. The iceberg runoff lags as compared with the course of the variance of tidal fluctuations of the angular velocity approximately by six years.  相似文献   

Effects of low temperatures on strength and power input into rock failure     

Evgenii V. Zakharov  Alexander S. Kurilko 《寒旱区科学》2014,6(5):0455-0460

Study results of low temperature effects on the strength index and specific power input into rock failure are presented.It has been experimentally determined that within the range of-5 °С to-15 °С,there is a local minimum at which the compression strength and specific power input into failure of some rocks are 10%-50% lower than those at positive temperatures.  相似文献   

The current status of nature,and ecological problems of the Middle Onon region     

V. B. Vyrkin  V. M. Plyusnin  I. A. Belozertseva  A. I. Shekhovtsov  I. V. Enushchenko  V. V. Zakharov 《Geography and Natural Resources》2014,35(1):18-26

We provide a brief outline of the Middle Onon region and characterize the current status of the soils, vegetation and surface waters. We examine the environmental consequences of development of tin and gold deposits in the region, and suggest some avenues for recultivation of technogenically disturbed landscapes.  相似文献   

The Volgian Praechetaites exoticus Zone: Geochronological range, stratigraphic position and interregional correlation (a Response to the Paper by S.V. Meledina et al. “On the Position of the Praechetaites exoticus Zone in the Volgian Stage”)     

M. A. Rogov  V. A. Zakharov 《Stratigraphy and Geological Correlation》2011,19(1):102-107

The Praechetaites exoticus Zone is characterized; its definition, geographical range and correlation in the Panboreal Superrealm are discussed. New evidence supports the Middle Volgian age of the Exoticus Zone. It is shown that the presence of the characteristic ammonoid assemblage allows the recognition of this zone in the sections of North Siberia and Spitzbergen. The suggested key characters defining the zone include the appearance of the ammonites from the P. exoticus group at the lower boundary and Craspedites ex gr. okensis at the upper boundary. The stratigraphic distribution of boreal genera of ammonites at the Middle-Upper Volgian boundary is discussed.  相似文献   

Boreal Bathonian and biohorizons (dedicated to the memory of John Callomon, 1928–2010)     

V. A. Zakharov  M. A. Rogov 《Stratigraphy and Geological Correlation》2011,19(2):243-246

  相似文献   

Probable distribution of Upper Jurassic and Lower Cretaceous deposits on the Laptev Sea shelf and their petroleum resource potential     

V. A. Zakharov  B. I. Kim  M. A. Rogov 《Stratigraphy and Geological Correlation》2013,21(5):496-514

The analysis of Upper Jurassic and Lower Cretaceous marine sections developed in surrounding structures of the Laptev Sea revealed that all of them are composed of terrigenous rocks, which enclose abundant concretions cemented by calcareous material. The Upper Jurassic portion of the section is the most variable in thickness and stratigraphic range of sediments usually including hiatuses. Its Lower Cretaceous part represented by the Boreal Berriasian (=Ryazanian) and lower Valanginian stages is most complete. The Upper Jurassic and Lower Cretaceous sections are usually composed of fine-grained rocks (clays and mudstones) in the west and coarser cemented varieties (siltstones and sandstones) with rare mudstone intercalations in the east. Practically all the investigated Upper Jurassic and Lower Cretaceous sections include readily recognizable age and facies analogs of the Bazhenovo Formation and Achimov sandstones, which are petroliferous in West Siberia. There are grounds to assume the occurrence of these formations also on the Laptev Sea shelf, which is confirmed by seismic records. Conditions favorable for the formation of potential hydrocarbon reservoirs could exist in the western part of the paleobasin along the Nordvik Peninsula coast and northeastern Tamyr Peninsula margin. Paleotectonic reconstructions presented in this work are well consistent with stratigraphic conclusions.  相似文献   

Minimum star tracker specifications required to achieve a given attitude accuracy     

A. I. Zakharov  M. E. Prokhorov  M. S. Tuchin  A. O. Zhukov 《Astrophysical Bulletin》2013,68(4):481-493

We describe the principles of the computation of minimum specifications of the optical system and array detector of the star attitude sensor to achieve the required attitude accuracy for the given exposure. The computations assume that the attitude error is influenced only by random noise of diverse origin, whereas all systematic errors have been eliminated. We report the specifications required for trackers meant for different purposes. We show that the errors of existing star trackers exceed the lowest achievable error by one order of magnitude because of unaccounted biases. We discuss the types of these biases and the methods that can be used to take them into account or eliminate them.  相似文献