Scientific Journal of KubSAU

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

COMPLEX AND INDIVIDUAL ACCOUNTING OF THE COMBINATION OF LOADINGS AS A METHOD OF THE ANALYSIS OF SAFETY OF STRUCTURES

abstract 0951401042 issue 95 pp. 742 – 767 30.01.2014 ru 1213
In this article on the example of the three-floor building the offered method of the analysis of safety of the structures, based on the complex and individual accounting of a combination of loadings is considered
1673 kb

THE SYNTHESIS OF SYSTEMIC-COGNITIVE MODELS OF THE INFLUENCE OF ENVIRONMENTAL FACTORS ON THE QUALITY OF LIFE OF THE REGION

abstract 1341710001 issue 134 pp. 1 – 13 29.12.2017 ru 1213
The article describes the synthesis and verification of statistical and system-cognitive models of the influence of environmental factors on the quality of life of the population of the region. This stage of the ASC-analysis is performed in the system called "Eidos". As a result, we have created and validated (verification stage) all the specified systemic cognitive models. It is expected that reliability for the models of knowledge is sufficiently high for a given subject area, that is why we can state the discovery of a dependence of life expectancy and causes of death from environmental conditions. Typically, knowledge models are approximately 20% higher in accuracy than statistical models, which operate on the principle of positive pseudo-prediction. Making decisions based on the model of Abs (matrix of absolute frequencies) is not appropriate because of the different number of instances of classes (generalized categories) and dependence of the solutions of this amount. In the model called Prc2 (conditional and unconditional percentage distribution) the dependence of the model values of the number of examples in classes has been removed, but the accuracy of it is usually same low as in the Abs. In addition, for decision-making based on this model, one has to compare the values of conditional and unconditional probabilities manually, which is laborious and hardly possible for large dimensional models. The knowledge model called Inf3, based on a measure similar to the Chi-square, is the result of the automated comparison of values of conditional and unconditional probabilities presented in the model of Prc1, which is similar to Prc2, and usually has a fairly high accuracy, especially considering the high complexity of the subject area, which we simulated. Therefore, in accordance with the technology of the ASC-analysis data conversion into information, and afterwards - into knowledge, it is the model of Inf3 which is planned to be used for the solution of problems of identification, forecasting, decision-making and exploring the modeled subject area, through the study of its models
755 kb

REVEALING THE CONNECTIONS IN THE TECHNICAL SYSTEM OF THE PROCESS OF CHOICE THE KNOWLEDGE FROM THE AREA OF KNOWLEDGE

abstract 0921308034 issue 92 pp. 507 – 516 31.10.2013 ru 1214
We have done the analysis of the possible connections in the real and technical systems of the process of choice the knowledge from the area of knowledge. It has been identified dependence the number of the straight connections in this system from the number of its elements. For this it was used an example of the technical systems of the process of choice the knowledge from the area of knowledge - the binary tree of the system of questions and answers, realizing the chose of the method of optimization from the va-riety of methods. In the technical system of the process of choice the knowledge from the area of knowledge have been defined and analyzed the straight and reverse connections, the connection of generation, the structural connections and the connection functioning. For these connections, the quantitative relationships were obtained
177 kb

FORECASTING OF LOSSES OF POWER IN THE POWER SYSTEM OF RUSSIA

abstract 1091505064 issue 109 pp. 938 – 947 29.05.2015 ru 1216
The growth of breakdown in electric networks of Russia has been followed by the growth of industrial and domestic power consumption taking place in our country in the last decade. This situation is directly connected with the high percentage of outdated equipment in electric networks. Such thing as a loss of power is directly connected with deterioration of equipment and breakdown. Average losses of power in the country are at the level of 1980-s, despite the turning point to the side of reduction outlined recently. Forecasting is one of the activities that contribute to their reduction, as it allows identifying adverse trends and calculating the effect of different kinds of technological arrangements. The visible growth of interest in the intellectualization of education and in the different fields of industry should not avoid the electric power field, which is quite conservative. The development of the concept of a “smart network” and its implementation would help to improve the reliability of electric networks. One of the signs of such a network is the possibility to assess the current situation automatically and forecasting of its parameters in the future, including energy losses. This article examines the main factors affecting the value of power losses, the analysis of the most popular methods of forecasting is conducted, and conclusion about the prospects of their use to predict the losses of power has been made based on the results of this analysis
360 kb

CREATING AN ADAPTIVE CONTROL SYSTEM WITH A REFERENCE MODEL TO STABILIZE THE TEMPERATURE OF DRYING AGENT FOR GRAIN DRYER TYPE OF DSP16

abstract 1121508028 issue 112 pp. 365 – 378 30.10.2015 ru 1217
The article describes the process of creation of an adaptive control system with a reference model to stabilize the temperature of drying agent. It is shown that the closed systems work with the operated models is quite satisfactory and therefore can be implemented in production. The increase of the gain of the controller allows reducing the duration of the transition process by one third, almost without changing the dynamic cast
373 kb

THE CONCEPT OF INTEGRATION OF SYSTEMS FOR THE ISSUANCE AND MAINTENANCE OF PREFERENTIAL RECIPES ON THE TERRITORY OF THE KRASNODAR REGION

abstract 1101506041 issue 110 pp. 609 – 632 30.06.2015 ru 1218
In the region, there is a problem of effective management of the pharmaceutical benefits under the benefit programs and the implementation of the therapeutic process. In health care in prescription health products of preferential category of citizens we have more than five different software developers involved that doesn’t allow controlling the prescription at all levels of health administration of the region. In order to form information flows into a single space it is necessary to have an integrated software product involved, both in the prescription, and in their service. The article presents a review of existing systems for issuing and servicing of preferential recipes, and prescriptions for controlled medicines, in the context of healthcare of the Krasnodar region, including considered the variety of products offered by different developers. The concept of integration of existing systems, which will allow overcoming the difficulties associated with fragmented solutions in automation preferential drug provision. For information exchange we encourage to use the XML format, examples of requests and responses in SOAP
179 kb

PSEUDO-NOISE SEQUENCE ACQUISITION ALGORITHM FOR MULTI-CARRIER COMMUNICATION SYSTEMS RESEARCH USING COMPUTER MODELING

abstract 1111507110 issue 111 pp. 1677 – 1687 30.09.2015 ru 1218
The goal of the study is to research experimentally a pseudo-noise sequence acquisition method for multicarrier communication systems of MC-DSCDMA, that allows low hardware requirements and able to operate in low quality channels. The way of achieving this lies in using a specially developed computer model of algorithm in Simulink. The achieved results have shown high efficiency of the considered acquisition method in contrast to sequential search method. The proposed algorithm can be used in multicarrier systems for acquisition of aperiodic pseudo-noise sequences in wireless public networks and in military communication networks
434 kb

MATHEMATICAL MODELLING OF HEAT AND MASS TRANSFER DURING ADSORPTION-CONTACT DRYING OF CERAMIC MATERIALS (MATHEMATICAL MODEL)

abstract 0891305019 issue 89 pp. 257 – 277 29.05.2013 ru 1221
The mathematical model of heat and mass transfer during adsorption-contact drying of ceramic bricks within the framework of the mechanics of multiphase systems is constructed
153 kb

THE METHOD OF CONSTANTLY OPERATING MODELS IDENTIFICATION FOR QUALITY CONTROL OF STUDENTS KNOWLEDGE

abstract 0911307021 issue 91 pp. 362 – 372 30.09.2013 ru 1224
Based on the theory of self-organization, we have developed an original method for identification of target functions students’ knowledge quality (SKQ) in the face of influencing factors uncertainty. The proposed system of external criteria for the models selection and control parameters allows to use the model for the effective management of the SKQ
434 kb

CONCEPT OF BREAK-EVEN POINT IN THE CONDITIONS OF A SMALL REPAIR COMPANY

abstract 0911307028 issue 91 pp. 458 – 467 30.09.2013 ru 1227
The article has stated that, subject to the conditions of existence of break-even point, a negative value indicates the manufacturing arm of the loss-making activity of a small repair shop
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