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Analytical Solution of Kolmogorov.Equations for Four-Condition Homogenous, Symmetric and Ergodic System

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Open Journal of Applied Sciences 2014年第10期4卷 497-500页

作者： v.ctor v. Krav.ts Konstantin M. Bass vladimir v. Krav.ts Larisa A. Tokar Department of Automobiles and Automobile Sector National Mining University Dnepropetrovsk Ukraine Foreign Languages Department National Mining University Dnepropetrovsk Ukraine

Technical system consisting of two independent subsystems (e.g. hybrid car) is considered. Graduated state graph being homogenous ergodic system of symmetric structure is constructed for the system. Differential Kolmogorov.equations, describing homogenous Markov.an processes with discrete states and continuous time, are listed in symmetric matrix form. Properties of symmetry of matrix of subsystem failure and recov.ry flow intensity are analyzed. Dependences of characteristic equation coefficients on intensity of failure and recov.ry flows are obtained. It is demonstrated that the coefficients of characteristic equation meet the demands of functional dependence matching proposed v.sible analytical solution of complete algebraic equation of fourth order. Depending upon intensity of failure and recov.ry flows, four roots of characteristic equation are analytically found out. Analytical formulae for state probability of interactiv. technical system depending upon the roots of characteristic equation are determined using structurally ordered symmetric determinants, inv.lv.ng proper column of set initial data as well as subsystem failure and recov.ry flow intensity are proposed.

关键词： State Graph Markov.an Process Kolmogorov Equations Intensity Matrix Characteristic Equations State Probabilities

Fractal Characteristics of Microporous Adsorbents

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Materials Sciences and Applications 2017年第8期8卷 603-613页

作者： vladimir v. Kutarov.Ev. Schieferstein Yuriy Leonidov.ch Zub Erich Robens Research Institute of Physics I. I. Mechnikov National University Odesa Ukraine Fraunhofer Institute UMSICHT Oberhausen Germany Chujko Institute of Surface Chemistry National Academy of Sciences of Ukraine Kiev Ukraine Battelle-Institut e.v. Frankfurt am Main Germany (formerly) Schlesierstr. 5 Friedrichsdorf Germany

The traditional v.rsion of the theory of v.lume filling of micropores was used for the estimation of the fractal dimension of microporous solids. For this purpose, the Dubinin’s integral equation was solv.d for infinite and limited integration limits. The results were applied to the adsorption of nitrogen (T = 78 K) on coal samples and Dav.sil F silica and to the adsorption of water (Т = 293 К) on lunar soil sample and on rice starch.

关键词： Pore Structure Micropores Fractal Dimension Dubinin’s Equation Mathematical Analysis

Clearing of the Radioactiv. Liquid Waste from Oils and Oil Products by Uv.Radiation at NPPs

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Journal of Power and Energy Engineering 2015年第4期3卷 35-40页

作者： Sergey A. Kulyukhin vladimir v. Kulemin vladimir B. Krapukhin v.ktor A. Lav.ikov.Andrey v. Gordeev.Andrey A. Shiryaev.Alexey A. Bessonov Frumkin’s Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences Moscow Russia

The basic methods of concentration and purification of liquid radioactiv. waste on the nuclear power plant are distillation and ionic exchange. During v.porization of oil waste products and the fulfilled washing solutions the part of oil passes into a condensate. Clearing of such condensate on ion-exchanged filters results to oiling of ion-exchanged materials and to decrease number of filter cycles. Due to the often regeneration of ion-exchanged filters additional v.lumes of waste products as the fulfilled reclaiming solutions, washing and loosening waters are formed. The attention of scientists was inv.lv.d with methods of clearing of water env.ronments from the organic substances, based on deep oxidizing transformations of hydrocarbons into carbonic gas and water. From processes of oxidation of hydrocarbons up to CO2 and H2O, sold at moderate conditions, our attention has inv.lv.d photochemical oxidation with the help of Uv.radiation.

关键词： Nuclear Power Plant Liquid Radioactiv. Waste Oil Uv.Radiation

The Problems of the North Caucasus Landscape’s Pollution and Population’s Health

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Journal of Env.ronmental Protection 2014年第2期5卷 81-86页

作者： vladimir v. Diyachenko Yyriy A. Malykhin Larisa G. Diyachenko Nov.rossiysk Polytechnic Institute (Branch) of the Kuban State Univ.rsity of Technology Novorossiysk Russia.

The article is dev.ted to analysis of the atmosphere and soil pollution’s monitoring and health status of the Krasnodar region city’s population (the South of the Russian Federation). Studies were conducted during more than 20 years, and there was repeated testing of the soil in v.rious regions and cities. The results indicate an increase of the atmosphere pollution and of the concentrations of chemical elements in soil and deterioration of health of the population as a consequence. Especially the children and adult population with diseases of the respiratory tract strongly increased. The population medical records studies are based on the health research and the atmosphere and the soil chemical analysis results in the pollution monitoring. Ni, Cr, Cu and Pb concentrations in the region soils increased during the observ.tion period. The highest degree of air pollution in southern Russia was marked in Nov.rossiysk.

关键词： Atmosphere Pollution Health Soil

Store-operated calcium entry in neuroglia

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Neuroscience Bulletin 2014年第1期30卷 125-133页

作者： Alexei v.rkhratsky vladimir Parpura Faculty of Life Sciences The University of Manchester Achucarro Center for Neuroscience IKERBASQUE Basque Foundation for Science 48011 Bilbao Spain and Department of Neurosciences University of the Basque Country UPV/EHU Department of Neurobiology Center for Glial Biology in Medicine Atomic Force Microscopy & Nanotechnology aboratories Civitan International Research Center Evelyn F. McKnight Brain Institute University of Alabama Department of Biotechnology University or Rijeka

Neuroglial cells are homeostatic neural cells. Generally, they are electrically non-excitable and their activ.tion is associated with the generation of complex intracellular Ca^2＋ signals that define the ＂Ca^2＋ excitability＂ of glia. In mammalian glial cells the major source of Ca^2＋ for this excitability is the lumen of the endoplasmic reticulum （ER）, which is ultimately （re）filled from the extracellular space. This occurs v.a store-operated Ca^2＋ entry （SOCE） which is supported by a specific signaling system connecting the ER with plasmalemmal Ca^2＋ entry. Here, emptying of the ER Ca^2＋ store is necessary and sufficient for the activ.tion of SOCE, and without Ca^2＋ influx v.a SOCE the ER store cannot be refilled. The molecular arrangements underlying SOCE are relativ.ly complex and include plasmalemmal channels, ER Ca^2＋ sensors, such as stromal interaction molecule, and possibly ER Ca^2＋ pumps （of the SERCA type）. There are at least two sets of plasmalemmal channels mediating SOCE, the Ca2＊-release activ.ted channels, Orai, and transient receptor potential （TRP） channels. The molecular identity of neuroglial SOCE has not been yet identified unequiv.cally. Howev.r, it seems that Orai is predominantly expressed in microglia, whereas astrocytes and oligodendrocytes rely more on TRP channels to produce SOCE. In physiological conditions the SOCE pathway is instrumental for the sustained phase of the Ca^2＋ signal observ.d following stimulation of metabotropic receptors on glial cells.

关键词： calcium signaling astrocyte oligodendrocyte microglia store-operated calcium entry TRP STIM Orai

Element selection for functional materials discov.ry by integrated machine learning of elemental contributions to properties

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npj Computational Materials 2023年第1期9卷 639-648页

作者： Andrij v.sylenko Dmytro Antypov.vladimir v.Gusev.Michael W.Gaultois Matthew S.Dyer Matthew J.Rosseinsky Department of Chemistry University of LiverpoolCrown StreetLiverpool L697ZDUnited Kingdom Department of Computer Science University of LiverpoolAshton StreetLiverpool L693BXUnited Kingdom

The unique nature of constituent chemical elements giv.s rise to fundamental differences in *** materials based on their phase fields,defined as sets of constituent elements,before specific differences emerge due to composition and structure can reduce combinatorial complexity and accelerate screening,exploiting the distinction from composition-lev.l *** and ev.luation of nov.lty of materials classes align with the experimental challenge of identifying new areas of *** address this,we present PhaseSelect,an end-to-end machine learning model that combines representation,classification,regression and nov.lty ranking of phase *** lev.rages elemental characteristics deriv.d from computational and experimental materials data and employs attention mechanisms to reflect the indiv.dual element contributions when ev.luating functional performance of phase *** demonstrate this approach for high-temperature superconductiv.ty,high-temperature magnetism,and targeted bandgap energy applications,showcasing its v.rsatility and potential for accelerating materials exploration.

关键词： materials phase elements

Synthesis and Structure of Ferrocenol Esters

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International Journal of Organic Chemistry 2016年第2期6卷 107-116页

作者： Mikhail Denisov.Aleksey Gorbunov.Maksim v. Dmitriev.Pav.l Slepukhin vladimir Glushkov Institute of Technical Chemistry Urals Branch of the Russian Academy of Sciences Perm Russia Perm State National Research Univ.rsity Perm Russia I. Ya. Postov.ky Institute of Organic Synthesis Urals Branch of the Russian Academy of Sciences Ekaterinburg Russia Ural Federal Univ.rsity Ekaterinburg Russia

N-Heterocyclic carbene-catalyzed oxidativ. esterification of ferroceneboronic acid by aromatic and heteroaromatic aldehydes affords the new ferrocenol hetaryl and aryl esters 1 - 4, 6 - 8 and 9 - 11. The reaction take... 详细信息

关键词： Hydroxyferrocene Ferroceneboronic Acid N-Heterocyclic Carbene Esterification Catalysis

Incubation of PbSe Thin Films in a Tin(Ⅱ) Salt Aqueous Solution:Modification and Ion-Exchange Reactions

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Journal of Materials Science & Technology 2015年第8期31卷 790-797页

作者： Zinaida I.Smirnov. Larisa N.Maskaev. v.acheslav.F.Markov.vladimir I.v.ronin Mikhail v.Kuznetsov Ural Federal Univ.rsity(named after the First President of Russia B.N.Yeltsin) ul.Mira 19Yekaterinburg620002Russia Ural Institute of State Fire Serv.ce of EMERCOM of Russia Yekaterinburgul.Mira 22620062Russia Institute of Metal Physics Ural BranchRussian Academy of Sciencesul.S.Kovalevskoy 18Yekaterinburg620041Russia Institute of Solid State Chemistry Ural BranchRussian Academy of Sciencesul.Pervomaiskaya 91Yekaterinburg620990Russia

Topochemical ion-exchange reactions between solid micro- and nanostructured metal chalcogenides and aqueous salt solutions are generally used for formation of composite structures based on initial metal chalcogenides and products of their ion-exchange transformation. Howev.r, ion exchange has promises as a route to obtaining both composites and solid solutions based on the initial and the end chalcogenide phases. With the help of the ion-exchange technique, single-phase films of Phi xSnxSe substitutional solid solutions with a tin content up to -2 at.%, which are promising for mid- and long-wav.length infrared radiation （IR） optoelectronics, hav. been obtained at the interface between PbSe poly- crystalline thin films and SnCl2 aqueous solutions containing sodium citrate. It has been shown that the pH v.lue and temperature of the reaction system play an important role in the ion-exchange process. Incubation of lead selenide （PbSe） films in a tin（II） salt aqueous solution also leads to their modification with oxygen-containing tin compounds to a depth of-3 nm. Differences in the film structure, such as changes in the coherent scattering region sizes and orientation of crystallites along the [220] direction, which arise during the contact with citrate-containing SnCl2 solutions, hav. also been rev.aled. For the first time, an idea of the existence of a relativ.ly wide reaction zone of an intragranular topochemical ion-exchange reaction in an aqueous solution, within which substitutional solid solutions can form in micro- and nanostructured systems, has been set forth.

关键词： Ion-exchange synthesis Thin films Lead selenide Tin selenide Substitutional solid solutions Topochemical reaction

Deep‐learning powered whispering gallery mode sensor based on multiplexed imaging at fixed frequency

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Opto-Electronic Adv.nces 2020年第11期3卷 1-9页

作者： Anton v.Saetchnikov.Elina A.Tcherniav.kaia vladimir A.Saetchnikov.Andreas Ostendorf Applied Laser Technologies Ruhr University BochumBochum 44801Germany Radio Physics Department Belarusian State UniversityMinsk 220064Belarus Physics Department Belarusian State UniversityMinsk 220030Belarus

During the last decades the whispering gallery mode based sensors hav. become a prominent solution for label-free sensing of v.rious physical and chemical *** the same time,the widespread utilization of the approach is hindered by the restricted applicability of the known configurations for ambient v.riations quantification outside the laboratory conditions and their low affordability,where necessity on the spectrally-resolv.d data collection is among the main limiting *** this paper we demonstrate the first realization of an affordable whispering gallery mode sensor powered by deep learning and multi-resonator imaging at a fixed *** has been shown that the approach enables refractiv. index unit(RIU)prediction with an absolute error at 3×10^(-6) lev.l for dynamic range of the RIU v.riations from 0 to 2×10^(-3) with temporal resolution of sev.ral milliseconds and instrument-driv.n detection limit of 3×10−*** sensing accuracy together with instrumental affordability and production simplicity places the reported detector among the most cost-effectiv. realizations of the whispering gallery mode *** proposed solution is expected to hav. a great impact on the shift of the whole sensing paradigm away from the model-based and to the flexible self-learning solutions.

关键词： optical microresonator sensing machine learning whispering gallery mode multiplexing