№ 124(10), December, 2016
Public date: 30.12.2016
Archive of journal: Articles count 99, 268 kb
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DYNAMIC OPTIMIZATION OF GRAIN DRYING PROCESSES USING A CONTINUOUS MANAGEMENT SYSTEM
DescriptionThe article considers the dynamic optimization of the drying process of grain by proper selection of the required parameters. The calculations of the optimal parameters of the control device
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Description
We have presented a table of analogues of mechanical and electrical quantities of a thermal power plant, which shows the relation between the useful power of the engine and mechanical efficiency, as well as the relationship between engine parameters and regime of its operation; we have also developed an electro-mechanical analogy, which helped to get the expressions linking the useful engine power with shaft speed, engine performance, coefficient of mechanical resistance and mechanical efficiency with speed, coefficient of drag and engine performance. Similar expressions were obtained for the relations of these variables with other sets of parameters. The article also shows corresponding graphs. The expressions for the maximum net power and corresponding speed of rotation was found. Thus, the efficiency isЅ. It is shown that in larger (compared with the extreme) speed, the mode is less efficient than with the smaller, for the same useful power. A method is presented to measure the important characteristics of the finished engine – motor operation and its rotational drag coefficient used in the resulting expressions
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Description
The article deals with the problem of assessing the quality of land settlements of Krestetsky uyezd in Novgorod province since the time of cadaster descriptions of Novgorod land to fieldworks of Russian soil scientists. The comparative aspect studies information of cadastres in the middle of the XVI century, Economic notes to the General landsurveying of the Russian Empire in the second half of the XVIII century and "Soil and Geological essay of Krestetsky uyezd" at the beginning of the XX century. Due to this research a database included information about the settlements having existed in the territory for centuries, with the description of land quality and fertility was compiled. The analysis revealed that according to field studies, mechanical and physical composition of soils in Krestetsky uyezd within the same soil type was very diverse. General land surveying described soil based on the predominance of muddy substances, sand or clay, but at the same time the characteristic of grain yields played an important role. In the XVI century the categories of good, medium and poor lands could have the lands with the same composition of the soil, and the probability of it was especially strengthened by the prevalence of certain soils in the region. However, at the micro level of individual settlements of graveyards certain regularities in land assessment shown in the objective signs that can be identified on the country are traced. The graveyards of Derevskaya pyatina included in Krestezkiy uyezd deals with such objective indicators as worsening assessment of the quality of land including the availability of various types of clay which are subsoils of many local soils
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ALTERNATIVES OF SOCIAL AND BUSINESS DEVELOPMENT OF RUSSIA: ECONOMIC AND LEGAL ASPECTS
DescriptionThe problems of formation and realization of strategy of modernization of Russia in the new conditions of increased economic and socio-political turbulence were the focus of attention of participants of the XXXI International scientific-practical conference called "Economic and legal aspects of the implementation of the modernization strategy of Russia: the search for models of effective social and business development", which carried out its work in the period of 5-9 October 2016 in Sochi. The main organizers of the conference were the Krasnodar regional public charitable Foundation "Scientific and educational initiatives of Kuban", Krasnodar branch, Financial University under the Government of the Russian Federation, South Institute of management (Krasnodar). Important role in ensuring the scientific quality and representativeness of the conference, as well as in organizational and scientific and methodological assistance to its holding had the support of Financial University under the government of the Russian Federation, Ministry of Economics of Krasnodar region, Central Economics and mathematics Institute of Russian Academy of Sciences, the International political and economic associations, Krasnodar regional branch of all-Russian public organization "Association of lawyers of Russia", Krasnodar regional educational public organization "the Society "Knowledge". In the work of this conference representatives of economic science in higher education from reputable Universities in Russia and South macro-region took part, as well as legal scholars, sociologists, and businessmen; the international level of the conference have confirmed their participation by scientists from Canada. The total number of traders amounted to more than 70 people, including more than 50 doctors and candidates of Sciences. During the work of the scientific forum there were plenary and sectional meetings, organized round tables and other discussion platforms
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AUTONOMOUS HYBRID POWER PLANTS
DescriptionThe article discusses the features of design and operation in the different modes of functioning of autonomous hybrid power plants based on renewable and traditional energy sources. We have given a structural scheme of such a plant. It is shown that the algorithm of the system in the autumn-winter period should be adjusted according to the monthly monitoring; and standby generator of independent source can be run at a deeper discharge of batteries. It is known that the most expensive and the weakest link in the solar PV plants is rechargeable battery. In addition, the larger the number they have in the system, the more complicated the fulfillment of all conditions of proper operation is. We have proposed to extend the lifetime of batteries through the use of passive balancing, which allows to increase the reliability of operation and reduce the cost. It is shown that a real possibility of improving the technical and economic performance of autonomous hybrid power plants is their execution on the basis of solar photovoltaic power plants. We have also discussed the features of construction and operation of hybrid power plants, which will increase the efficiency of preliminary works on development of high-performance structural circuit design of the stations
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TECHNICAL PROVIDING FOR THE SYSTEM OF PROCESSING KUBAN SOIL
DescriptionThe system of the main handling of the soil on an agrolandscape basis in the conditions of Kuban is analyzed and in relation to it the technical supply promoting competitive production of crop production is proved. Conservation and expanded production of humus of the Kuban chernozems is possible only in case of observance of recommendations and the balanced biologically adaptive system of agriculture providing improvement of water and physical and chemical properties of the arable land in various agrolandscapes due to observance of crop rotations, the technology space, the boardless, surface and "zero" treatments with creation of a favorable phytosanitary situation, use of a crop residue remaining balance, green manure, a fertilizer, manure and composts. The application was recommended in the system and technicians of new generation with automated control systems and work quality control, the sparing tradable systems, admissible weight with use of navigation aids and GPS is proved. We have suggested a system machine for soil cultivation in the Kuban region, it radically changes technologies, reduces the nomenclative list of the used equipment, facilitates servicing and operation of machines, improves rhythm, threading of production processes and complexity of the performed works. All this promotes decrease in capital investments and a work gain in productivity. The offered technical supply of system of the main handling of the soil for conditions of the Krasnodar region is proved taking into account agrolandscapes and evidence-based system of agriculture, auxiliary the main component - resource-saving system of the tillage machines which are qualitatively carrying out agrorequirements, reducing costs and promoting the increased product competitiveness of crop production
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THE DEVICE FOR STORING AGRICULTURAL MACHINERY IN PROTECTED FORM IN OUTDOOR AREAS
DescriptionThe carried out analysis studies the influence of various factors on the preservation of agricultural products and shows that it is largely determined by design features of machinery and technological methods of use. The efficiency of agricultural and mobile trailer machines has been forming by service and storage. Low quality of work associated with the storage of agricultural machines is conditioned by the fact that the lack of financial capacity of rural producers on acquisitions of modern equipment and materials for carrying out the preparation of for long storage, and also the construction of modern agricultural machinery storage sites. If a car can be fully or partially protected from the solar radiation, rain and snow, simply by removing it in the room, under a canopy or covered with a protective cover, by the formation of condensation on the surface of the machine units and parts these ways to protect do not work. Enhancing of preservation of agricultural machinery is possible when protecting the vehicles from atmospheric precipitation in the form of snow and rain, influence of solar radiation, and also due to the change heat exchange processes of the machine with the environment that prevents the formation of moisture condensate on its surface, ie. we have to create conditions when cooling rate at which the surface of the machine would be equal to or less the rate of cooling air. This is possible through the use of a special design, which would prevent the intense heat radiation of the machine into the environment, ie, would reflect heat rays using its surface and return them to its surface and thus fulfill the role of the heat shield
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Description
Using queuing theory (QT) for the new technology of harvesting of grain crops by the method of «Neveyka», the method of optimal designing of maintenance system and elimination of failures of units used in cleaning technology and post-harvest processing of grain has been considered. On the basis of a systematic approach, taking into account the probabilistic nature of the change of operating factors the methodical directions of validity test of the adoption of the Poisson distribution in the calculation of operating modes were substantiated to optimize maintenance level units and eliminate failures in the operation of the machines, the probability of failure-free operation of harvesting and transport aggregates. The probability of failure-free operation of each type of units used in the cleaning of grain depends on their number and intensity of service. According to the numerical value the probability of failure-free operation of units is equal to the probability of idle units for maintenance and elimination of failures. Since it is impossible to determine separately the value of the probability of failure-free operation for all types of units and all kinds of services at different operating conditions the generalized solution has been offered, this solution is applicable to any serviced unit during both the technical inspection and elimination of failures. By specifying the desired value of the probability of failure-free operation of harvesting units, according to their number we can determine the appropriate ratio between the average length of service and the average period of time between incoming service requirements (technical inspection and elimination of failures) from one unit
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FEATURES OF THE DEVELOPMENT OF AN INFORMATION LEARNING SYSTEM
DescriptionNowadays, a necessary condition for progress in the field of information technology is wide adoption of standards and technologies of information systems used for hardware and software products. Building software of computing and information systems, based on the ideology of open systems, allows to successfully solve the problems of portability on platforms of various manufacturers, the problem of interchangeability of components and, most importantly, ensures the integration of devices and users in a variety of computing and telecommunication networks. It should be emphasized the fact that to date the successful implementation of any significant projects in the field of information and computer technology, management of information and telecommunications is not possible without coordination of development with existing standards in the field of information systems and, in some cases, the development of new standards. In the conditions of transition to integrated computing and telecommunications systems, the principles of information systems form the basis of technology integration, the establishment of sectoral, regional and national information infrastructures and their interactions on a global scale. So, we can conclude that the technology of information systems today is the working environment in which the priority is the development of information and telecommunication technologies, telecommunication and computer engineering
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DEVELOPMENT OF EARLY-RIPENING WHITE CABBAGE VARIETIES IN THE SOUTH OF RUSSIA
06.00.00 Agricultural sciences
DescriptionEarly-ripening white cabbage has a special place among the vegetables cultivated in Kuban region. It opens the pipeline of vegetables from the open ground and is supplied to other regions at a time when shortage of vegetables of domestic production is felt the most. Modern producer requirements to domestic hybrids are the highest - product quality, uniformity and productivity should not concede to foreign analogues. Ways to improve the quality of early ripening hybrids: development of lines based on modern foreign hybrids, high uniformity of lines by morphological and economic traits. Development of male sterile lines and dihaploid lines in culture in vitro can more successfully solve the problem of quality of early ripening hybrids. The use of the above methods and approaches helped develop series of inbred lines - gene sources for complex agronomic traits. On the vase of obtained lines promising earlyripening hybrids were developed. One of the hybrids, Ritsa F1, entered the State register of breeding achievements. Advantages of the hybrid: earliness, uniformity and high marketability of heads, high productivity. According to results of contest trial new hybrid Milana F1 is passed for State trial, this hybrid has high productivity potential for growing in sale cropping. Both hybrids were produced with the participation of male sterile line Dt46f, resistant to fusarium. High quality seeds of these hybrids were produced in a greenhouse in direct crop for a wide industrial and environmental testing