Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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Name

Kovalenko Anna Vladimirovna

Scholastic degree


Academic rank

—

Honorary rank

—

Organization, job position

Kuban State University
   

Web site url

—

Email

savanna-05@mail.ru


Articles count: 51

656 kb

RATING OF FINANCIAL AND ECONOMIC STATUS OF AGRICULTURAL ENTERPRISES OF KRASNODAR REGION BASED ON FUZZY PRODUCTION SYSTEMS

abstract 0601006038 issue 60 pp. 599 – 624 29.06.2010 ru 2284
The article provides an overview of the basic rating methodologies, describes an algorithm of the own methodology for estimation the creditworthiness and investment attractiveness of the agricultural enterprises of Krasnodar region, using modern mathematical models. The rating of 30 agricultural enterprises of various patterns of ownership and scale is presented. The rating of 30 agricultural enterprises of various patterns of ownership and scale is presented
149 kb

REASONS OF ELECTRO CONVECTION IN ELECTRO MEMBRANE SYSTEMS

abstract 0731109033 issue 73 pp. 356 – 369 30.11.2011 ru 2132
In the article, the reasons of occurrence and development of electro convection in electro membrane systems are analyzed. The basic rules of occurrence and development of process of electro convection in the channel desalination of electro dialysis apparatus are revealed
412 kb

RESEARCH OF CREDIT STATUS OF REGIONS BY METHODS OF THE MULTIVARIATE STATISTICAL ANALYSIS

abstract 0581004009 issue 58 pp. 165 – 192 28.04.2010 ru 2538
The review of the basic techniques of rating agencies of the Russian Federation and the algorithm of own technique of an estimation of credit status and investment appeal of regions Russian Federations with use of the device of the multivariate statistical analysis is described in this article
176 kb

ROLE AND PECULIARITIES OF PROJECT STREAM IN THE FIELDOF AUTOMATION OF BUISNESS-PROCESSES IN COMPANIES

abstract 1101506024 issue 110 pp. 363 – 373 30.06.2015 ru 908
For effective management of economic and financial activity of a modern enterprise it is required to have information – software supply for its separate components: branches, divisions, services. Automation of the account allows accelerating significantly the process of granting, processing and the analysis of information necessary for the purposes of management. An important aspect on introduction of a program complex is the concept on its realization, i.e. the head of the company should define the way of development of automation of business - processes, what type of introduction is more preferable to the enterprise, what documents will formalize each of the stages. The article generalizes the data obtained by practical consideration on the basis of the realized projects on introduction of the automated systems in the companies from various fields of activity. The main stages of the design direction in the sphere of automation of business – processes are presented in this work, as well as the features of the subject and the characteristics of each stage, documentary objects for realization of each of them. Also on the basis of the carried-out analysis, the authors described a number of the existing shortcomings on realization of the design direction. In view of the data specified in article, the companies will be able to begin the project on automation of their own business effectively and quickly
735 kb

SIMULATION OF TRANSFER OF BINARY ELECTROLYTE IN THE CHANNEL OF DESALTING OF ELECTRO DIALYSIS APPARATUS IN POTENTIAL STATIC MODE

abstract 0751201024 issue 75 pp. 309 – 322 27.01.2012 ru 1833
Article is devoted to the numerical analysis of regional problems for system of the equations of Nernst-Plank-Puasson (NPP), to application of these regional problems to modeling and studying of mass transfer in the channel desalting of electro dialysis device. Various mathematical models of the transfer of ions in potential static mode in the form of system of the quasilinear equations with private derivatives are offered. The basic rules of occurrence and development of a spatial charge in the channel desalting of electro dialysis device are revealed
244 kb

SOFTWARE PACKAGE FOR THE ESTIMATION OF THE SOCIO-ECONOMIC CONDITION OF THE SUBJECTS OF THE RUSSIAN FEDERATION

abstract 1602006012 issue 160 pp. 163 – 173 30.06.2020 ru 205
The article presents ways to estimate the socio-economic condition of the subjects of the Russian Federation using fuzzy production systems, discriminant analysis and neural networks. This study is based on the thirteen indicators of the socio-economic condition of the regions of the Russian Federation identified by RIA Rating rating agency. The goal of the work is to develop a software package combining the estimation methods above and allowing to get three alternative estimation options for a subject of the Russian Federation, using these thirteen indicators. The developed program assigns each region an estimation from the following set: AAA– the highest socio-economic condition, AA - very high, A– high, BBB– above average, BB– average, B– below average, CCC– low, CC– very low, C– the lowest indicators of the socio-economic conditions in the region of the Russian Federation. The software package is developed in Matlab and has an intuitive interface. The results can be used as an alternative to current methods of estimation of the socio-economic indicators
606 kb

SOFTWARE TOOLS TO ANALYZE THE REGION'S CREDITWORTHINESS

abstract 1041410106 issue 104 pp. 1510 – 1519 30.12.2014 ru 1393
This article is a continuation of [1, 2] and is devoted to the description of a program complex "Region-Credit" for the assessment of financial stability, economic development, credit, socio-economic status and investment attractiveness of Russian regions. The article is an example of a comprehensive credit analysis, socio-economic status and investment attractiveness of Krasnodar Region for the period from 2008 to 2014 with the help of a program complex "Region-Credit", whose results are compared with peer review rating agency AK&M
145 kb

THE DEVELOPMENT OF COUNTRIES' CREDIT RATING ASSESSMENT SYSTEM

abstract 1191605019 issue 119 pp. 274 – 282 31.05.2016 ru 434
This work presents a new approach to the countries’ credit rating definition, based on the advanced mathematical models, such as neural network model, multiple regression, cluster analysis and discriminant analysis. A range of the analyses such as discriminant, cluster, multiple regression models and a neural network were performed on the following economic figures: GDP per capita, GDP value, annual growth rate of GDP, FDI - foreign investment, rate of unemployment, consumer price inflation index, the size of government debt in percentage of GDP. The results, obtained for each model were combined in the countries’ credit rating estimation system called "7M"
273 kb

THE HIGHER ASYMPTOTIC EXPANSIONS FINDING FOR BOUNDARY VALUE PROBLEM OF THE ZOM MODEL

abstract 0941310035 issue 94 pp. 490 – 506 27.12.2013 ru 1295
In this article authors propose the asymptotic solution of the boundary value problem modeling the transport of salt ions in the cell electrodialysis desalination unit. The domain of the camera desalting broken into two subdomains: electroneutrality and space charge. Subdomains has own asymptotic expansion. The subdomain of the space charge has unique solvability of the current approach used by the solvability condition of the next approximation
188 kb

THE INFLUENCE OF REACTION OF DISSOCIATION / RECOMBINATION OF MOLECULES OF WATER ON TRANSPORTING ELECTROLYTE 1: 1 IN THE MEMBRANE SYSTEMS IN THE DIFFUSION LAYER. PART 2. ASYMPTOTIC ANALYSIS

abstract 1221608017 issue 122 pp. 241 – 254 31.10.2016 ru 588
This article is devoted to the asymptotic analysis of boundary value problem for a system of equations of Nernst-Planck and Poisson for a singularly perturbed system of ordinary differential equations [1], based on two parameters. This boundary value problem simulates electrodiffusion of four kinds of ions at the same time in the diffusion layer in electro-membrane systems with perfectly selective membrane, taling into consideration the reaction of recombination of two ions. Meanwhile the other two ions represent ions of a binary salt. As a simple example, we consider the transport of ions sodium, chlorine, hydrogen and hydroxide, moreover, hydrogen and hydroxyl ions recombine in the diffusion layer. A more complex case is the transfer of the products of dissociation of the dihydrogen phosphate of sodium, namely, ions of sodium and dihydrogen phosphate, the latter dissociate at the interface, in turn, hydrogen ions and hydrogen phosphate. Thus, in the solution can simultaneously store three different types of ions: sodium, hydrogen, phosphate. During the transfer, hydrogen ions and ions of hydrogen phosphate recombine to produce phosphoric acid. The article has revealed the structure of the Nernst diffusion layer at currents above Harkatsa current. It is shown, that in the diffusion layer, there are two types of boundary layers: the inner (reaction) boundary layer and boundary layer at the interface solution / membrane
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