Scientific Journal of KubSAU

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

AN INTEGRATED APPROACH TO EVALUATE AND IMPROVE THE OPERATIONAL RELIABILITY OF THE FREGAT IRRIGATION MACHINE

abstract 1201606071 issue 120 pp. 1093 – 1107 30.06.2016 ru 441
The article contains a scientifically based approach to assessing and improving the reliability of DMU "Frigate" in the conditions of the Rostov region. The studied parameters for the elements with the lowest resource were: mean time between failure, mean time to repair, probability of failure, the parameter flow of failures, failure rate, actual and allowable factors of readiness. The analysis of the main faults of DMU "Frigate", identified nodes and elements, characterized by the low reliability, for which the dependences of probabilities of failure-free operation, as well as the dependence and developed the procedure for calculating the optimal duration of recovery of failed elements, to ensure acceptable availability. Statistics on major faults refuse items were collected over the three irrigation seasons from 2013 to 2015, were investigated failures due to wear of the elements for 17 irrigation machines. As a result of the research we developed mathematical apparatus of calculation and the comparative assessment of the readiness of the parks sprinklers of various farms to perform their processing functions at the same and different number of machines. We obtained the dependence for determining the allowable duration of the recovery elements that will allow you to determine the main directions of improving the reliability of DMU "Frigate" during the operational phase
469 kb

ANALYSES OF SOFTWARE PRODUCTS FOR AUTOMATION CONTROL OF THE LEGALITIES IN BUILDING IN KRASNODAR

abstract 1251701035 issue 125 pp. 510 – 523 31.01.2017 ru 455
The article discusses the pan-Russian problem of construction of buildings without appropriate permits. Conclusions were drawn about the necessity of control over unconscientious developers with the help of information systems and databases. The analysis of actual software was carried out in order to automatize the control of the legality of the construction. Legal features of equity and share participation in the construction of apartment buildings were studied. Legal aspects of the process of buying an apartment were considered. The review and the comparative analysis of the software that automatizes control of the construction legality were discussed, such as Yandex.Nedvizhimost and "Getting information from citizens concerning illegal construction within the city" System. The deficiencies of the software were identified and the necessary functions, the real estate search criteria and the issuance of authorizing documents criteria were listed. The decision on the need for a software product that combines all the necessary functions (search for real property by criteria and output of the information about the legality of the construction on-line) was grounded
191 kb

ANALYSIS AND ACCOUNTING OF POWER LOSSES WHEN ENERGY TRANSIT AND THEIR DISTRIBUTION AMONG PARTICIPANTS OF ENERGY EXCHANGE

abstract 1331709060 issue 133 pp. 786 – 796 30.11.2017 ru 377
The work is done in scientific and practical directions for minimization of power losses in transmission of electricity to local distribution networks between the actors of the energy (producers and consumers) of energy-saving technologies focused on technological activities such as modernization and reconstruction of networks. Quite often in various circuits of power systems, it is advisable to transfer energy and its power through intermediate (transit) nodes. Structural changes in the electricity sector, at present, are mainly associated with the introduction of market relations between the subjects of energy exchange; therefore, in this work special attention is paid to the problem of calculating the power losses, as it is nonlinearly dependent on the power at the nodes and branches of a network. It should be noted that the nodes in problems transit capacity could be both sources and consumers. The latter necessitated the need for search of possible ways to reduce transportation losses of energy due to both the improvement and optimization of distribution networks and through the use of intermediate transit nodes. It follows that the transportation problem in this formulation is more General and expands the possibilities of optimization of power losses for the local subsystems of the energy clusters. The work is composed of the transport matrix for solving problems transit capacity, where the algorithm taking into account the distinctive features of which consist in the use of continuous numbering of sources and consumers in the matrix, and any node can be a transit country. The transit capacity ii-th node Zii=0, and the dimension of the matrix in contrast to the previously considered tasks has (n+m) (n+m) and it remains square as all the transport problems of linear programming. Transit variables Xii are included in the solution of the problem with a minus sign, and all transit variables are considered basic. From the above example in the work of a number of branches of a network is minimal, which significantly reduces the cost of building and maintaining the network, and the solver minimizes the power loss between the subjects of energy exchange and, as a result to savings from the standpoint of cost of construction of the network and the management of overflows of energy in it
195 kb

ANALYSIS AND SELECTION OF WORKING MACHINES FOR PRE-TREATMENT OF THE SOIL UNDER GRAIN CROPS

abstract 1231609114 issue 123 pp. 1671 – 1683 30.11.2016 ru 333
The best predecessors for sowing grain are grains and legumes, tilled cultures and perennial grasses. The precursor also determines the choice of the tillage type. The imperfection of the working bodies of the machines for soil treatment is the main reason for the increase in the complexity of preparing soil for sowing. In recent years, domestic manufacturers have been producing combined working machines that perform several technological operations in one pass. To prepare soil for sowing grain there have been selected disk units and working machines which were tested on the Kuban State Zonal Machine-Station. They fit well with the existing technology. It is rational to conduct tillage of soil for tall crops and perennial grasses by the disc cutter BDM-4×4. The disc cutter efficiently prepares the soil for seed bed cultivation on tilled precursors in one pass or two passes. It is efficient to conduct tillage on grain precursors by the stubble cultivator KSP-6, by the disc combined unit AKD-3 or DCN - 3.3. After grain predecessors the disc guns prepare soil for seed bed cultivation in two passes, and after perennial grass in a single pass. According to the results of the trials on the Kuban State Zonal Machine-Station the stubble cultivator KSP-6 efficiently prepares soil for sowing in one pass of the unit. The block-module cultivator MSC provides high quality pre-sowing cultivation simultaneously with sowing. There was proposed the method of equipping the unit so that it would provide usage of the data and technical characteristics of the tractor and physico-mechanical properties of the soil for which the technological operation is to be done. The proposed method determines the transmission ratio for which the amount of slipping does not exceed the permissible values in agro requirements. The value of the theoretical speed is calculated for the given transmission. Operating speed is determined taking into account the slip values
214 kb

ANALYSIS AND SYNTHESIS OF A DECISION SUPPORT SYSTEM WITHIN MEDICALECONOMIC PREFERENTIAL DRUGS PRESCRIPTION CONTROL

abstract 1191605065 issue 119 pp. 926 – 937 31.05.2016 ru 421
There are about 575 thousand of citizens in the Krasnodar Region that are entitled to a preferential medical maintenance in accordance with the Federal Law of 17.07.1999 (â„–178-FZ) "On state social assistance." About 120 thousand of preferential prescriptions for 150 thousand of medicines are serviced per month. In order to make the drugs prescription process based exceptionally on real medical indications in accordance with modern concepts of medical service quality it is necessary to plan the medical-economic drugs prescription validity control (MEC). The work proposes the analysis and synthesis method of decision support system (DSS) modules for automation the selection of drugs prescription and medicinal maintenance cases, concerning the federal benefit recipients, while performing the MEC. DSS allows medical experts to estimate the efficiency of federal funds costs, that are spent on the preferential medicinal maintenance, moreover, it can serve as a basis for future purchases planning, as well as to correct and improve the efficiency of medical prescriptions. The DSS was developed in accordance with the approved procedure of information exchange in the Krasnodar Region; it involves the integration with existing systems. Furthermore, as the federal register of persons, entitled to the state social assistance, has common formats among all the Russian Federation subjects, the developed system can be easily adapted in other regions
211 kb

ANALYSIS AND USAGE OF DEPENDENCES BETWEEN COMPONENTS OF RGB FOR TASKS OF OBJECTS SELECTION ON THE IMAGES

abstract 0931309105 issue 93 pp. 1520 – 1529 30.11.2013 ru 1563
In the article we have considered the analysis of the dependence of RGB components for segmentation of objects on images
163 kb

ANALYSIS APPROACHES TO EVALUATION OF INFORMATION PROTECTION

abstract 1071503035 issue 107 pp. 498 – 509 31.03.2015 ru 1114
The article is devoted to an actual problem of information systems’ security assessment and the importance of objective quantitative assessment results receiving. The author offers the creation of complex system of information security with system approach, which will be used at each stage of information system’s life cycle. On the basis of this approach the author formulates the general scheme of an information security assessment of information system, and also the principles of an assessment’s carrying out method choice. In this work the existing methods of a quantitative assessment based on object-oriented methods of the system analysis, and also the objectivity of the received estimates on the basis of this approach are considered. On the basis of the carried-out analysis, serious shortcomings of the used modern techniques of an information systems’ security assessment are allocated, then the idea of the scientific and methodical device providing the increase of objectivity and complexity of an information assessment means on the basis of expert data formalization creation necessity was formulated. The possibility of this approach application for expeditious receiving a quantitative information security assessment in the conditions security threat’s dynamics changes, functioning and developments of information system is considered. The problem definition of automated information systems’ security assessment is executed, and the general technique of protection means of information in systems of this type was formulated
314 kb

ANALYSIS OF AIR EMISSIONS FROM TECHNOLOGICAL FURNACE OF THE OIL REFINERY IN TUAPSE

abstract 1241610084 issue 124 pp. 1316 – 1326 30.12.2016 ru 768
The peculiarities of the Tuapse refinery installation of primary oil refining ELOU-AVT-12 commissioned in 2013 were shown. The device is intended for dehydration and desalting of oil. Analyzed: tube furnace N-1001/1,2 for heating oil and oven N- 2001/1,2,3,4, for heating the distilled fuel oil. Tube furnace ELOU is one of the main sources of air pollution. We have performed quantitative chemical analysis of gas emissions furnace ELOU AVT and determined percentage of components O2, N2, CO in the emissions. The content of carbon monoxide in emissions was less than 0.05%, which corresponds to the standards. The average nitrogen content is 80%, which also corresponds to standard indicators
195 kb

ANALYSIS OF AN INFLUENCE OF A COUNTERWEIGHT ON ENERGY INDICATORS OF A DC MOTOR CYCLICALLY OPERATING MECHANISM

abstract 0951401062 issue 95 pp. 1080 – 1092 30.01.2014 ru 1120
In the article we have determined the dependence of the extreme mass of the counterweight from me-chanical drive parameters and chart movement of the executive body
227 kb

ANALYSIS OF BY-PRODUCTS MARKET IN RUSSIA

abstract 1051501032 issue 105 pp. 547 – 561 30.01.2015 ru 1086
Changing style of life, its rhythm and tendencies dictate their own conditions. The deficit of time makes us economize it on all, including the time for cooking. Among the main trends of the domestic meat market - switching consumers from frozen meat products to fresh cooled products. In connection with it the amount of consumers of meat semi-finished products grows. In the work there was considered the results of research of the Russian market of by-products. The market of frozen meat by-products is actively developed in large cities, where it has its own production. The participants of the market state that consumers have started to buy more frozen by-products by weight and the analysis of meat by-products assortment in retailing trade for 2014 testifies it. Trying to fasten their positions, operators of the market not only develop the production powers but work out new products and the analysis of dynamics of production volumes of meat by-products and shares of federal districts – producers of meat by-products testify it. The main players in this segment see the future market for complex, receipt, combined products and ready dishes that will lead to change of structure of meat semi-finished products sales
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