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  • 1
    Language: English
    In: Entomological Review, 2011, Vol.91(8), pp.973-987
    Description: The distribution of 28 species of longicorn beetles in the Caucasus and neighboring territories is discussed with new distributional data reported for some species. The records of Rhagium fasciculatum , Paraclytus sexguttatus , and Anaglyptus arabicus from northern Iran (Elburz Mts.) are considered erroneous. Photographs of old specimens of Phytoecia pontica (a male labeled “Caucasus Leder”) and Ph. wachanrui (a male labeled “Daghestan”) are given; the occurrence of these species in the Caucasus is considered probable. The records of Cortodera flavimana, Pedostrangalia verticenigra and Chlorophorus hircanus from northeastern Azerbaijan are considered erroneous; these species are not known from the Caucasus. The distribution of Brachypteroma ottomanum, Leioderes kollari, Phymatodes glabratus , and Dorcadion equestre still remains to be proved; the known records of B. ottomanum supposedly refer to B. holtzi , and those of L. kollari , to L. tuerki . It is also speculated that the records of Pedostrangalia revestita from Borjomi refer to the closely related P. tokatensis , and the records of Pedostrangalia emmipoda from Sevan and Batumi, to P. kurda .
    Keywords: Beetles ; Forest Ecology;
    ISSN: 0013-8738
    E-ISSN: 1555-6689
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  • 2
    Language: English
    In: Entomological Review, 2010, Vol.90(9), pp.1159-1166
    Description: The distribution of 18 longicorn-beetle species of the Caucasus Isthmus and adjacent regions is discussed. New records of some species are given enlarging their known distribution area in the Caucasus (in some cases, even beyond its limits). The modern knowledge of the distribution of Chlorophorus herbstii , Leptorhabdium caucasicum , and Brachyta caucasica does not confirm occurrence of the first species in the Caucasus and the others, in northern Iran. Stenocorus meridianus occurs only in the northernmost plains of the Ciscaucasia, bordering on Rostov Province. New data on the biology of two little known Caucasian species are given.
    Keywords: Beetles;
    ISSN: 0013-8738
    E-ISSN: 1555-6689
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  • 3
    Language: English
    In: Clinical Therapeutics, August 2015, Vol.37(8), pp.e69-e69
    Description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.clinthera.2015.05.206 Byline: A. Khokhlov, A. Miroshnikov, N. Pozdnyakov, D. Komarov, I. Dryagencova Author Affiliation: (1) Yaroslavl Medical State University, Yaroslavl, Russia (2) Clinical Hospital of Russian Railways, Yaroslavl, Russia
    Keywords: Medicine ; Pharmacy, Therapeutics, & Pharmacology
    ISSN: 0149-2918
    E-ISSN: 1879-114X
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  • 4
    Language: English
    In: Journal of Elasticity, 2015, Vol.118(2), pp.141-185
    Description: We consider the problem of dynamic cavity formation in isotropic compressible nonlinear elastic media. For the equations of radial elasticity we construct self-similar weak solutions that describe a cavity emanating from a state of uniform deformation. For dimensions d =2,3 we show that cavity formation is necessarily associated with a unique precursor shock. We also study the bifurcation diagram and do a detailed analysis of the singular asymptotics associated to cavity initiation as a function of the cavity speed of the self-similar profiles. We show that for stress free cavities the critical stretching associated with dynamically cavitating solutions coincides with the critical stretching in the bifurcation diagram of equilibrium elasticity. Our analysis treats both stress-free cavities and cavities with contents.
    Keywords: Cavitation ; Shock wave ; Polyconvex elasticity
    ISSN: 0374-3535
    ISSN: 19326203
    E-ISSN: 1573-2681
    E-ISSN: 19326203
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  • 5
    Language: English
    In: Clinical Therapeutics, August 2017, Vol.39(8), pp.e28-e28
    Description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.clinthera.2017.05.085 Byline: A. Khokhlov, A. Miroshnikov, N. Pozdnyakov Author Affiliation: Yaroslavl Medical State University, Yaroslavl, Russia
    Keywords: Medicine ; Pharmacy, Therapeutics, & Pharmacology
    ISSN: 0149-2918
    E-ISSN: 1879-114X
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  • 6
    Language: English
    In: The journal of physical chemistry. B, 19 November 2015, Vol.119(46), pp.14697-704
    Description: The flash point is one of the most important characteristics used to assess the ignition hazard of mixtures of flammable liquids. To determine the flash points of mixtures of secondary alcohols with n-alkanes, it is necessary to calculate the activity coefficients. In this paper, we use a model that allows us to obtain enthalpy of fusion and enthalpy of vaporization data of the pure components to calculate the liquid-solid equilibrium (LSE) and vapor-liquid equilibrium (VLE). Enthalpy of fusion and enthalpy of vaporization data of secondary alcohols in the literature are limited; thus, the prediction of these characteristics was performed using the method of thermodynamic similarity. Additionally, the empirical models provided the critical temperatures and boiling temperatures of the secondary alcohols. The modeled melting enthalpy and enthalpy of vaporization as well as the calculated LSE and VLE flash points were determined for the secondary alcohol and n-alkane mixtures.
    Keywords: Alcohols -- Chemistry ; Alkanes -- Chemistry
    ISSN: 15206106
    E-ISSN: 1520-5207
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  • 7
    Language: English
    In: Water Resources, 2013, Vol.40(7), pp.723-732
    Description: The article presents the results of radiogeochemical studies carried out by the Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, RAS (IGEM RAS), in the Kara Sea and the estuaries of the Ob and Yenisei rivers in 1995–2003. The studies were carried out onboard the Akademik Boris Petrov research vessel, belonging to the Institute of Geochemistry, RAS. Based on studies of circa 1500 samples of bottom sediments, taken from 172 marine and river stations, a map of 137 Cs distribution in the surface sediments has been compiled. Four zones of radiocesium overactivity (〉15 Bk/kg) have been identified: Novaya Zemlya Zone, Vaigach Zone, Ob Zone, and Yenisei Zone. The zones have different radiocesium concentration levels, as well as different input sources, but all of them have formed under the influence of complex geochemical barriers. Data from 47 sectioned cores of bottom sediments, sampled in Ob and Yenisei overactivity zones, demonstrate distinct differences in the vertical radiocesium distribution. These differences have been shown to be due to many-year oscillations of suspended silt discharge, which are main transfer agents of solvable and poorly solvable radiocesium forms and to be independent of sedimentation conditions and the geochemical characteristics of the deposition environment.
    Keywords: Kara Sea ; Arctic ; radiocesium ; bottom sediments ; macroarena ; drainage area ; radioactive contamination ; waste ; sedimentation ; marginal filter ; geochemical landscapes ; vertical distribution ; estuaries ; facies analysis ; migration ; accumulation
    ISSN: 0097-8078
    E-ISSN: 1608-344X
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  • 8
    Language: English
    In: Journal of Mining Science, 2011, Vol.47(3), pp.307-311
    Description: A mathematical model is offered to describe thermofluctuation processes of plastic deformation and fissuring in a geomedium. The kinetic coefficients are functions of temperature, mean pressure and stress deviator intensity.
    Keywords: Rock deformation ; fissured medium ; plasticity
    ISSN: 1062-7391
    E-ISSN: 1573-8736
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  • 9
    Language: English
    In: Journal of applied polymer science, 2011, Vol.120(5), pp.2724-2733
    Description: Droplets of polymer blends flowing through convergent channels undergo collisions and coalescence because of the appropriate wineglass-shaped flow paths with essential flow constriction at the entrance zone. Therefore, an attempt has been undertaken to use capillary flow for studying coalescence phenomena in polymer blends. When the initial drop diameters in a barrel (before extrusion), db, and in the extrudate, de, are measured, coalescence efficiency can be easily calculated as Ec = d 3e/d 3e, provided that no breakup of elongated domains occurs. Compared with methods employing simple shear flow, it has several advantages. For example, the convergent flow pattern combining both shear and extensional flows is directly related to industrial processing operations like extrusion, injection molding, blowing, etc. The method imposes minor limitations on processing parameters and materials used. Applicability of the technique proposed was verified by systematic studies of coalescence in PMMA/PS binary melts blends during capillary extrusion and by comparing these results to theoretical predictions and experimental data from literature. ; Includes references ; p. 2724-2733.
    Keywords: Channels ; Coalescence ; Coalescing ; Droplets ; Extrusion ; Melt Blends ; Polymer Blends ; Reproduction ; General and Nonclassified (Ep);
    ISSN: 0021-8995
    E-ISSN: 10974628
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  • 10
    Language: English
    In: Electrochimica Acta, 01 December 2018, Vol.292, pp.846-854
    Description: Anode materials for Li-ion batteries based on a conversion mechanism show very high theoretical specific capacities. In particular, phosphide materials display volumetric and gravimetric capacities far beyond graphite, approaching those of silicon-based materials. However, the slow kinetics and large mechanical strain during the conversion process are challenging issues toward enabling phosphide-based anode materials. Here, we synthesize a copper phosphide free-standing membrane and show the benefits of this approach, which provides lighter electrodes with faster kinetics during lithiation and delithiation. The Cu P membrane is both binder-free and carbon black-free, and its synthetic process involves a simple chemical vapor deposition of phosphorus on a composite polymer-copper membrane at a moderate temperature of 429 °C. Microscopic and other methods show the purity of the phase and of the porous structure within the membrane. Galvanostatic cycling reveals an initial discharge reaching the theoretical capacity, high reversible capacity of 320 mAh/g (including the current collector), and good kinetics for phosphide-based materials at C/5 rate.
    Keywords: Copper Phosphide ; Lithium-Ion Battery Anode ; Copper Membrane ; Solid State Reaction ; Engineering ; Chemistry
    ISSN: 0013-4686
    E-ISSN: 1873-3859
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