Scientific Journal of KubSAU

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

FORECASTING THE AUTOMOBILE STATE ON THE BASIS OF APPROXIMATION OF ITS ELEMENTS PARAMETERS CHANGE

abstract 1211607088 issue 121 pp. 1434 – 1452 30.09.2016 ru 464
The article shows the necessity to consider the inter-control result to forecast the automobile state and present it as a random value. It is pointed out, that the character of the automobile element parameter change is determined by the determined function and the criteria of this or that function choice. It is stated, that the variation coefficient serves as a criteria of approximation. Besides, the element resource variation coefficient is obviously more informative as it results calculations at the whole range of parameter change with consideration of this change character when the coefficient of the parameter change variation can reflect the approximation degree only on one or several sections. It is underlined that in a case of the parameter change functions approximation it is necessary to consider the automobile details break-in when one can see the short and sharp increase of the parameter change. Moreover, we have made a conclusion that the forecast error and intensity depend finally on the choice of the approximating function. The wrong choice of the function can bring to naught all the efforts to direct the safety margin and other parameters of the automobile elements. We have found out that the power function of thee parameter change is quite unique. This function coefficients having distinct physical sense are few. This shows the convenience of the wide use of the degree function for practical forecast. The approximation error of parameter change might be influenced (along with a selection of the function) by the accuracy of determining its coefficients. Finally, we have made a conclusion that it is very desirable after choosing and finding the coefficients of any approximating equation to convert it into one definite function and develop the forecast apparatus, tables, nomograms and so on for it. This is the only way of using the wide class of approximating equations when having relatively small math and other provision of the forecast
506 kb

A REVIEW OF THE CURRENT ELEMENT BASE WITHIN THE CONCEPT OF SMART GRIDS

abstract 1211607096 issue 121 pp. 1595 – 1607 30.09.2016 ru 501
Energy complex of the country is a collection of electrical installations high and low voltage, producing, transforming, transporting, distributing and consuming electricity. A huge web of networks and more than 700 generating plants with a total capacity of about 230 GW [1]. Almost 90% of this potential is formed in a unified technical complex of the Unified energy system (UES) [2]. Now there is a deterioration of the performance of the sector. In comparison with 90-mi years of XX century, more than 1.5 times increased power losses in the power grids. Significantly increased the proportion of obsolete electrical and auxiliary equipment, and the load on the network every day only increase. All speaks of the necessity of both local and global modernization of the electric power complex of the country and the creation of a new concept of consumption management and energy distribution in the network. In the framework of the energy strategy of the Government of the Russian Federation dated 13 November 2009 # 1715-R, to improve handling and ensure reliable operation of electric power systems, wider introduction of flexible transmission system (FACTS devices) and improvement of systems of automatic emergency protection and dispatching control [1]. The development of electric power complex of the country should be in the way of intelligent networks. This is possible through the use of modern components that can make the process of managing "intelligent". In foreign literature, this term is called the Smart Grid
367 kb

MATHEMATICAL MODELING OF ELECTRO TECHNOLOGICAL OZONIZATION OF EGG STORES OF POULTRY FARMS

abstract 1211607098 issue 121 pp. 1619 – 1632 30.09.2016 ru 395
Sanitization of eggs is an essential way to fight bacteria, fungi and other microorganisms. Hatchability of eggs and the safety of day-old chicks are dependent on the quality of eggs processing. Leading scientists of our country have proved high efficacy of ozone application for processing of hatching eggs. To obtain a positive result by this method of sanitizing hatching eggs ozone, it is necessary to create a uniform concentration of ozone around the egg store volume. Decrease in ozone concentration from the set point may result in insufficient exposure to pathogens and because of this, may reduce hatchability. Significant excess of ozone concentration from the set point can kill the embryo. Because of mathematical modeling of electro eggs ozone treatment process, there was a mathematical model of the process of electroozonation of egg stores of poultry farms. This model takes into account decomposition of ozone on the surface of eggs and decomposition of ozone on the walls of an egg store. This mathematical model proves the desired control action at different initial data, such as: the required concentration of ozone in the egg store, the number of eggs, egg store geometric dimensions, the fan power, the design parameters of the discharge unit, the location of the ozone generator in the room
248 kb

ECONOMIC SIGNIFICANCE OF DESIGN, DEVELOPMENT, AND EXTRACTION OF BITUMEN FROM BITUMINOUS SAND AND HEAVY OIL IN NIGERIA

abstract 1211607114 issue 121 pp. 1828 – 1839 30.09.2016 ru 414
Nigeria has the largest oil sands and bitumen resources in Africa and is one of the main leading countries in the world from the point of view of its significant potential heavy oil deposits. Research of geological and physicochemical properties confirmed that the Nigerian bitumen is an important energy source and an alternative source of hydrocarbon feedstock for the petrochemical industry. Nigeria imports black oil for the petrochemical industry and its heavy oil can act in place of this black oil. In addition, researchers have successfully established the possibility of producing electrical energy from this heavy oil. Tar sands and bitumen are able to help improve the economy of Nigeria
130 kb

MATHEMATICAL MODEL OF A VENTILATION SYSTEM WITH VARIABLE AIR FLOW ALONG THE VERTICAL AXIS OF THE REACTOR IN THE COMPOSTING PROCESS

abstract 1211607119 issue 121 pp. 1887 – 1896 30.09.2016 ru 576
In the article, we present the mathematical model of a ventilation system with variable air flow along the vertical axis of the reactor in the composting process. We have solved the problem of the choice of the method of supplying air to the bioreactor, reducing the temperature of the substrate along the axis of the bioreactor. The proposed method provides a reduction of temperature and moisture content of the gas phase, which leads to a change in the dynamics of the composting process. This article was prepared in the framework of the scientific project 16-48-230441 a(R) "Mathematical modeling of the processes occurring in the automated installation for year-round production of organic fertilizers in the conditions of the Krasnodar region", financed by RFBR and administration of the Krasnodar region
173 kb

THE TECHNIQUE OF A SECURITY TOOLS CHOICE FOR A CORPORATE NETWORK

abstract 1211607130 issue 121 pp. 2045 – 2054 30.09.2016 ru 552
At the present time, due to the high demands on the stability of the networks and information security, the actual problem is the choice in the market of software and hardware products, the protection of information assets from a number of different threats that arise in the corporate network. Despite the fact that the market for hardware and software products offers a lot of information security, it is difficult to leaders and experts to find out how they differ from each other, and what principles should guide their choice. In the article, for solving the problem of the choice of remedies, their purchase and installation on workstations and enterprise network servers, it is proposed to use a comprehensive methodology, based on the methods of the game theory and the analysis of hierarchies
1374 kb

MECHANIZATION OF HARVESTING AND PROCESSING OF TOMATOES

abstract 1211607134 issue 121 pp. 2090 – 2117 30.09.2016 ru 656
The article has a research character which is expressed through the analysis of ways and means of mechanization for harvesting of solanaceous vegetables, and also endurance from works of scientists on the studied subject. Vegetable growing is an important branch of agricultural production. From a set of vegetable plants the increasing significance is attached to cultures which production contains physiologically active agents. Solanaceous vegetables belong to these cultures. In Russia, vegetables on an industrial basis are cultivated in the south of the country. Everywhere in Russia crops of vegetables are reduced. It is explained by high costs of production, especially on harvesting that at the general deficiency of manual skills leads to reduction of the areas, violation of technology of cultivation and harvesting and, respectively, to decrease in productivity. In conditions import substitution of foreign agricultural production and increase in the areas of landing of vegetable cultures in the Russian Federation for creation of a safety cushion food in the conditions of food embargo, undoubtedly, will be required the maximum mechanization of technological process of cleaning of vegetables. The most important results of types of designs of machines for vegetables and, problems of use of modern machines for cleaning of vegetable cultures are given. Our own design for harvesting solanaceous vegetables is offered
568 kb

MECHANIZATION OF CUCUMBERS HARVESTING

abstract 1211607135 issue 121 pp. 2118 – 2135 30.09.2016 ru 445
The article has a research character which is expressed through the analysis of ways and means of mechanization for harvesting of cucumbers, and also through the works of scientists on the studied subject. Vegetable growing is an important branch of agricultural production. Among a set of vegetable plants the increasing significance is attached to cultures production of which contains physiologically active agents. Solanaceous vegetables belong to these cultures. In Russia, vegetables on an industrial basis are cultivated in the south of the country. Everywhere in Russia crops of vegetables are reduced. It is explained by high costs of production, especially on harvest that at the general deficiency of manual skills leads to reduction of the areas, violation of technology of cultivation and harvest and, respectively, to decrease in productivity. In the conditions of import substitution of foreign agricultural production and increase in the areas of landing of vegetable cultures in the Russian Federation for creation of a safety cushion of food in the conditions of food embargo, undoubtedly, there will be required the maximum mechanization of technological process of harvesting of vegetables. The article presents the most important results of new types of designs of machines for harvesting of vegetables and cucumbers in particular, as well as problems of use of modern machines for cleaning cucumbers and vegetable cultures
5855 kb

THE APPLICATION OF ASC-ANALYSIS TO DETERMINE RATIONAL DESIGN FEATURES AND PARAMETERS OF THE MODES RELATIVE TO THE SCREW DRUMS FOR MIXING ANIMAL FEED

abstract 1201606001 issue 120 pp. 1 – 48 30.06.2016 ru 401
The authors have developed and manufactured a large number of different designs of relative helical drums for mixing animal feed. We have conducted 749 field experiments with the drums of the 10 different designs with different parameters modes of operation. In all experiments, we measured the quality of the feed mixture. However, directly based on empirical data, rational choice of design features and parameters of the operation modes of the reels is not possible. For this, you must first develop a model reflecting these empirical data. The construction of meaningful analytical models of different types of drums is a difficult and demanding scientific task, the complexity of which is due to the large variety and complexity of forms of drums and their mode of usage, a large number of diverse physical factors affecting the processes in the drum. As a consequence, the development of analytical models associated with a large number of simplifying assumptions that reduce their versatility and reliability. Therefore, it is important to search of a mathematical method and software tools provide a quick and simple for the user to identify and influence the design of the drum and the parameters of the operating modes on the quality of the feed mixture directly on the basis of empirical (experimental) data. The work proposes a solution to this problem with the use of a new universal innovative method of artificial intelligence: automated system-cognitive analysis (ASC-analysis) and its programmatic Toolkit – universal cognitive analytical system called "Eidos". In the system of "Eidos" we have implemented a software interface that provides direct input into the system large amounts of empirical data from Excel file. Created on their basis in the system of "Eidos" system-cognitive model allows the visual form to reflect the effect of the structure of the drum and the parameters of the operating modes on the quality of the resulting feed mixture and to develop on this basis the science-based and appropriate recommendations for the rational choice of design features and parameters of the modes relative to the screw drums. We have also given a numerical example
1056 kb

CONTEMPORARY APPLIANCES FOR AGROINDUSTRIAL COMPLEX AND PROSPECTS OF ITS OF MODERNIZATION

abstract 1201606008 issue 120 pp. 147 – 172 30.06.2016 ru 531
Material and technical resources form the bulk of the cost in the production of agricultural products and determine the level of intensity of agricultural development, productivity and competitiveness of the industry. The most important role in agricultural production has been given to transport operation, as the performance and the quality of the implementation of which depends directly on the amount and the grade of the products. On intraeconomic transportation in the APC RF, along with the car we widely use tractor trucks. Unfortunately, in most cases for the transportation of agricultural goods we use supersize trucks, including construction purposes, with a high axle loading. These vehicles need roads with improved coating to each field. Here we may note substantial shortcomings of transportation. Because of the unnecessary displacements from combines to dump trucks to the end of the field, the costs and the losses are increasing and the arrival of heavy machinery in the field leads to soil compaction, which ultimately affects the future harvest. The successful implementation of agricultural work is strongly associated with the timely and volume movement of a variety of materials, such as animal feed, fertilizers, construction, and other loads. A lot of these works needs roads; nevertheless, the quality of agricultural roads and field work significantly affects the timely and high-quality forage. Thus an important part of any machinery tractor fleet of agricultural production is taken by the presence of modern cars, tractor-trailers and semi-trailers. Continuous growth in the saturation of tractors carried out around the world, improves the performance of tractor transport aggregate by increasing their capacity and speed, either on the road or in the field. However, if you increase the saturation of tractors, it encounters problems related to the deterioration of the controllability of the tractor and transport unit. To address emerging when increasing the saturation of tractors problems, we have proposed devices, allowing reducing negative impact on the production of elevated oscillatory processes, to increase the permeability and straightness of movement of tractor-transport unit
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