Scientific Journal of KubSAU

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

Loyko Valeriy Ivanovich

Scholastic degree


Academic rank

professor

Honorary rank

—

Organization, job position

Kuban State Agrarian University
   

Web site url

—

Email

loyko@kubagro.ru


Articles count: 147

665 kb

SYSTEM-COGNITIVE MODEL OF FORECASTING THE DEVELOPMENT OF DIVERSIFIED AGRO-INDUSTRIAL CORPORATIONS. PART I. COGNITIVE STRUCTURING AND FORMALIZATION OF THE SUBJECT AREA

abstract 1131509097 issue 113 pp. 1380 – 1396 30.11.2015 ru 1214
In this article, in accordance with the methodology of the Automated system-cognitive analysis (ASCanalysis), we examine the implementation of the 1st and 2nd stages of ASC-analysis: cognitive structuring and formalization of the subject area. At the stage of cognitive structurization of subject area, researchers decide what to consider as the object of modeling, the factors affecting it and the results of their actions. In accordance with the results of the cognitive structurization, we prepare the initial database for the study (training sample or case-based reasoning). At the stage of formalization of the subject area, the base of the original data is being normalized, i.e., we develop classification and description: the scale and graduations and with their use the base of the source data is being encoded. The result is a database of events (eventological database) and the training sample. The stage of cognitive structuring and preparation of the source data is not formalized and the formalization of the subject area is fully automated and performed directly with the use of the universal cognitive analytical system named "Eidos", which is a software Toolkit for ASC-analysis. Stages of cognitive structurization and formalization of the subject area of ASC-analysis are the first steps of data conversion into information and into knowledge. Subsequent steps: the synthesis and verification of system-cognitive model, the decision of problems of identification, forecasting and decision making, as well as studies of the modeled object by studying its model will be considered in future articles
231 kb

PHYSICAL MEANING OF CERTAIN SIMILARITY CRITERIAS OF TRANSPORT PROCESSES IN THE DESALTING CHANNEL THE ELECTRODIALYSIS DEVICE WITH ELECTROCONVECTION

abstract 1051501051 issue 105 pp. 845 – 864 30.01.2015 ru 1221
The phenomenon of electro convection in membrane systems is of considerable interest, because it is, according to many authors, the main mechanism of overlimiting mass transfer. A great number of theoretical and experimental works, in which, as a rule, dimensional values were used, are devoted to electro convection study. Because of that, in actual fact, there is investigated the influence of individual factors on the transfer process. For example, the influence of voltage jumps, the average speed of a forced stream of the solution, the geometric characteristics of the channel, the initial concentration, etc. However, the influence of these factors appears not separately, at the same time. Thus, there is the problem of introducing dimensionless complexes of dimensional values that have a physical meaning and that allow to evaluate the inner links of the process. As it is known, for solving that problem, there is applied a theory of similarity, based on the transition towards dimensionless parameters in equations and formulas describing the process, and using values, typical of the system under study. This work is devoted to the determining of physical meaning of similarity criteria of salt ions processes, taking into account electro convection in the desalting channel of electro dialysis apparatus. The channel is bounded with perfectly selective, homogeneous anion-exchange and cation-exchange membranes. The introduced similarity criteria are used so as to conduct the theoretical study of the effect of a number of parameters of a desalting process on electro convection
215 kb

A MATHEMATICAL MODEL OF OPTIMIZATION OF THE VOLUME OF MATERIAL FLOWS IN GRAIN PROCESSING INTEGRATED PRODUCTION SYSTEMS

abstract 1001406017 issue 100 pp. 315 – 337 30.06.2014 ru 1230
The article suggests a mathematical model of optimization of the volume of material flows: the model for the ideal conditions; the model for the working conditions; generalized model of determining the optimal input parameters. These models optimize such parameters of inventory management in technology-integrated grain production systems, as the number of cycles supply, the volume of the source material and financial flows. The study was carried out on the example of the integrated system of production, processing and sales of wheat (bread) with the full technological cycle
167 kb

NOISE-IMMUNITY OF PSEUDO-NOISE SEQUENCE ACQUISITION ALGORITHM FOR MC-CDMA COMMUNICATION SYSTEMS

abstract 1141510004 issue 114 pp. 55 – 65 30.12.2015 ru 1283
The goal of the study is to research a noise-immunity of pseudo-noise sequence acquisition method for multicarrier communication systems MC-CDMA, using a segment of the pseudo-noise sequence. The goal was achieved by running a simulation developed in MATLAB. By analyzing the results, we can show that the developed mathematical model produces the lower bound for pseudo-noise sequence acquisition probability. The resulting analytical estimations might be used during the design phrase for pseudo-noise sequence acquisition systems for MC-CDMA based military communication networks
22698 kb

ON-LINE FORECASTING OF VALUE OF ECONOMICAL INDEXES OF DIVERSIFIED CORPORATION WITH APPLICATION OF PROCESS ENGINEERINGS OF ARTIFICIAL INTELLIGENCE (part 2: synthesis and model ve-rification)

abstract 0711107050 issue 71 pp. 710 – 723 30.09.2011 ru 1311
In this article, the routine of synthesis of four models of the corporation, different by frequent measure of correlation between past indexes of the factories entering into corporation and the future statuses of corporation as a whole is featured, verification of all private models with utilization of two integral measure is fabricated, forecasting of the future statuses of corporation on their system of determination is performed
246 kb

STREAMING INTERACTION OF AGRICUL-TURAL AND PROCESSING ENTERPRISES OF AGROINDUSTRIAL COMPLEX

abstract 0921308071 issue 92 pp. 1056 – 1075 31.10.2013 ru 1355
This article presents the results of research of stream-ing scheme of interaction between agricultural (AGC) and processing (PP) agricultural enterprises which were developed by the authors of the mathematical model for calculation of economic efficiency of AGC circuits and PP, as well as for the calculation of economic efficiency of the companies in case of their association
401 kb

SOCIAL SCORING

abstract 0911307089 issue 91 pp. 1246 – 1263 30.09.2013 ru 1369
The new approach to the classification of the client by a method of credit scoring on the basis of the profiles of social networks is considered in the article. The approach illustrates interaction with social networks as new data source in credit process. Statistical methods of data processing and corresponding to them mathematical tools were involved in the analysis. The description of this approach is kept within the made experiment
181 kb

MODERN METHODS OF SCIENTIFIC JOURNALS IMPACT EVALUATION

abstract 1101506056 issue 110 pp. 837 – 853 30.06.2015 ru 1380
The purpose of the research is the development of new methods of the estimation of the importance of scientific journals. It is known that for assessing the significance of scientific journals it is used a universally recognized impact factor, which reflects the average number of citations to the articles published in the magazine for a certain period of time. For a more objective assessment of the significance of the journal in the scientific community we use such indicator as the index of efficiency, which reflects how quickly the articles in the scientific community published in the journal become known and recognized. At the same time, the impact factor as one of the scientometric indices has inherent definite disadvantages, the main of which - the stimulation scientific edition to the artificial reduction of the number of published articles, instead of increasing demands to improve their scientific level. It is necessary to develop a method of assessing the significance of the journal for the scientific community, preserving the dignity of the impact factor and reduce its disadvantages. Application of extra scientometric indicators, in addition to the impact factor and the index of efficiency, will allow assessing the importance of the journal for the scientific community more objectively. Methodological bases of the research are: a systematic approach (considering science as a social institution in close connection with the society as a whole), metasystem approach (considering the scientific community as a metasystem, i.e. a system with a relatively independent components), qualimetric approach (considering the importance of the scientific journal as a latent variables that reflect a variety of criteria), sociological approach (considering the scientific publication as a social system, the intensity of interaction with other society)
801 kb

DATA MINING OF USERS' SOCIAL NETWORK PROFILE FOR DETERMINATION OF TYPOLOGY OF THE CONSUMER. Part I

abstract 1071503107 issue 107 pp. 1638 – 1660 31.03.2015 ru 1387
The article considers a new approach to the definition of the type and psycho type of consumer - social network user, using psychographics methods, data mining and statistical techniques and analytical tools. In the study, we executed testing of respondents in order to identify the properties of their socio-economic preferences. Experimental and research work aimed at solving the problem described in the article, was divided into several complementary to each other and interconnected parts. The article presents the first part of the work, which includes the decision of 3 objectives, namely to obtain quantitative, statistical data on the properties of consumer preferences of users of the social network "VKontakte"; identifying groups of consumers with different severity of socio-psychological properties of preferences; definition of psycho type of user with a set of inherent characteristics and behavior patterns. To achieve the objectives we developed comprehensive software, called "MindScore", with main components at this stage - 1) the module for user authorization through the app of social network "VKontakte" and for extraction data of its social profile, 2) the module for processing and analysis data. In the study we have given rise to the creation of unique algorithms for personality mining using dataset of user profile social network
132 kb

APPLICATION OF CODES WITH NATURAL REDUNDANCY FOR INFORMATION PROTECTION

abstract 0981404103 issue 98 pp. 1448 – 1461 30.04.2014 ru 1497
In the article we provide a survey of cryptographic systems on the basis of unjammable coding; we offer the aspect of codes with natural redundancy for the solution of a problem of simultaneous protection of the information and detection and correction of errors; the demonstration is resulted that codes with natural redundancy are group codes
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