Scientific Journal of KubSAU

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

THE INVERSE PROBLEM OF OPTIMAL ONESTEP AND MULTI-STEP FILTERING OF MEASUREMENT ERRORS IN THE VECTOR

abstract 1141510027 issue 114 pp. 360 – 369 30.12.2015 ru 1003
In practice, we often encounter the problem of determining a system state based on results of various measurements. Measurements are usually accompanied by random errors; therefore, we should not talk about the definition of the system state but its estimation through stochastic processing of measurement results. In the monograph by E. A. Semenchina and M. Z. Laipanova [1] it was investigated for one-step filtering of the measurement errors of the vector of demand in balance model of Leontiev, as well as multistage optimal filtering of measurement errors of the vector of demand. In this article, we have delivered and investigated the inverse problem for the optimal one-step and multi-step filtering of the measurement errors of the vector of demand. For its solution, the authors propose the method of conditional optimization and using given and known disturbance to determine (estimate) the matrix elements for one-step filtering of measurement errors and for multi-stage filtration: for given variables and known disturbance to determine the elements of the matrix. The solution of the inverse problem is reduced to the solution of constrained optimization problems, which is easily determined using in MS Excel. The results of the research have been outlined in this article, they are of considerable interest in applied researches. The article also formulated and the proposed method of solution of inverse in a dynamic Leontiev model
139 kb

THE INVESTIGATION AND MANAGEMENT OF ECONOMICS’ RESOURCE POTENTIAL IN THE AGRARIAN SECTOR

abstract 1171603058 issue 117 pp. 902 – 914 31.03.2016 ru 560
The article deals with the problems of investigating the resource potential state. We present a methodology based on the systematic approach. The development of economics’ resource potential requires shift from unilateral and local approaches to adaptive systemic paradigm, involving the use of tools, methods and mechanisms of development, which are formed in accordance with the hierarchical structure of the resource potential according to different levels. Generalization of the systemic aspects of the economics’ resource potential formation and development is revealed that the importance of informed decision-making in the system of sectorial management increases nowadays, that leads to the increasing the analytical and predictive tools obtaining relevant information according to the current processes in the resource fields. The managing development system of the economics’ resource potential in the context of adaptive systemic paradigm provides the identification of regional (across the macro-region) and territorial (within the region) features of developing status and trends of economics’ resource potential. Because of tools’ application for multivariate statistical analysis, we indicate groups of the identified areas with different levels of resource development. Main stages and steps allow formalizing the problem at different levels, which will facilitate the process of strategic planning and management of resource development. For example, the agrarian sector of the Southern and North Caucasian Federal District presents the results of cluster’s analysis of subjects’ districts. We group the regions according to resource potential development of the agricultural sector
526 kb

THE INVESTIGATION OF THE ACCELERATION PROCESS OF A MACHINE AND TRACTOR UNIT ON THE BASIS OF CLASS 1,4 TRACTOR WITH A VARIABLE ROTATING MASS OF THE ENGINE

abstract 1131509077 issue 113 pp. 1061 – 1071 30.11.2015 ru 820
The aim of the work is theoretical and experimental confirmation of the possibility of improvement in tractor unit acceleration due to the variable inertia moment of the rotating masses of the engine. The use of high-speed tractors in agricultural production meets a number of difficulties associated with unsteady processes during acceleration of the tractor units. The emerging significant inertial loads during acceleration result in the loss of engine power because of what the machine and tractor unit is operating at reduced productivity and efficiency. An analysis of published works shows that the tractor unit acceleration is strongly influenced by the rotating mass of the engine. A device based on the application of additional rotating masses in a free flywheel connected or disconnected automatically to the main engine flywheel at appropriate stages is offered. As a result, the tension during acceleration is reduced. The results of experimental studies on the effect of the additional rotating masses on the engine acceleration characteristics of the machine and tractor units on the basis of Class 1.4 tractor are given. It is proved that the use of the tractor additional rotating mass connected or disconnected to the respective modes of movement of a machine and tractor unit to the flywheel of the engine, improves acceleration performance
475 kb

THE INVESTIGATION OF THE TECHNOLOGY OF THE DRAIN PIPES FORCE-PACKAGE WITH THE VOLUME-FILTER MATERIAL IN CONSTRUCTING BURIED HORIZONTAL DRAINAGE

abstract 0881304043 issue 88 pp. 636 – 648 30.04.2013 ru 1391
The technology of the close subsurface drainage construction with using the force-feed of the volume-filter material by the narrow-trench drainage machine bin is described in the article. The results of the field study of the drains laid by traditional and proposed technology efficiency are shown
153 kb

THE INVESTIGATION SOLVABILITY OF THE SECOND BOUNDARY VALUE PROBLEM FOR PARTIAL DIFFERENTIAL EQUATION WITH INVOLUTORY DEVIATIONS IN THE LOWEST TERMS

abstract 0981404022 issue 98 pp. 296 – 306 30.04.2014 ru 1496
In this article we consider the problem of solvability oа second boundary value problem for the model equation in partial derivatives with involutive deviation in the lowest terms. The investigation is based on a variable separation method
518 kb

THE ISSUE OF A FUZZY EXPERT SYSTEM DEVELOPMENT

abstract 1141510033 issue 114 pp. 456 – 467 30.12.2015 ru 1204
The article considers questions of the information system of choice of development tools of automated systems based on fuzzy logic model. The technique allows us to develop information systems in an objectoriented programming language. Information system allows selecting the most effective tool without additional researches
176 kb

THE ISSUE OF CONCEPT, FEATURES AND CLASSIFICATION OF FINANCIAL-LEGAL NORMS

abstract 1071503011 issue 107 pp. 178 – 194 31.03.2015 ru 1769
The concept, essence, value and classification of financial-legal norms are considered in the article. The special attention is paid to detection of peculiarities of these norms allowing delimiting them from norms of other branches of the law. The article emphasizes the fact that the direct purpose of the financial law norms is defined by a subject of the financial-legal regulation that is the relations arising in the process of public financial activities for regulation of formation, distribution and use of public funds of money. The authors’ opinion is reasoned about the fact that financial-legal norms are seldom arise as actual one because rules of conduct very rarely developed in social life as a prototype of the financial-legal norms. This circumstance is caused by the fact that financial relations do not exist and do not arise by it; these relations are shown in the forms determined by the state (municipalities) and depend primarily on social needs which are determined by a level of development of the commodity-money relations, extent of the state activity, social problems and so on. Besides, authors explore the reasons of instability of the financial law norms. In addition, in this article the authors’ opinion about action mechanism of the financial law norms as very actual phenomenon in modern Russia is reasoned. Due to the fact that the budget system of the country is under the influence of financial-legal norms, with help of such norms state extra-budgetary social funds formed and used, monetary and exchange rate policy carried out, so the need of deeper study of these norms and understanding their action mechanism is very actual phenomenon in modern Russia
205 kb

THE ISSUE OF DATA COLLECTION IN ELECTRICITY SYSTEMS

abstract 0841210065 issue 84 pp. 844 – 854 28.12.2012 ru 1403
The article discusses the two ways to scaling storage chronological data systems. The formulas for calculating the optimal duration of the period (to split the data by period) and the maximum allowable rate for guaranteed preservation in the system are presented
830 kb

THE ISSUE OF GOVERNANCE OF AGROINDUSTRIAL HOLDING

abstract 1041410118 issue 104 pp. 1694 – 1727 30.12.2014 ru 1201
In the article we have considered the concept of integrated corporate structures, the term of "corporation", "holding"; we have proposed the evaluation of their development in the Krasnodar region. The review of current management problems in agro-industrial holding was provided as well as the choice of directions of improvement of management, which is the basis for the integrated management techniques for integrated corporate structures of such forms, on the example on "Southern Diversified Corporation" agricultural holding
148 kb

THE ISSUE OF INCREASING THE INVESTMENT ATTRACTIVENESS OF THE NATIONAL ECONOMY AT DIFFERENT GOVERNMENT LEVELS

abstract 1001406056 issue 100 pp. 866 – 879 30.06.2014 ru 1565
The article considers the problems and strategies for promotion of investments at the federal, regional and municipal levels. The expediency of the proposed changes in government investment policy on different management levels
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