№ 126(2), February, 2017
Public date: 28.02.2017
Archive of journal: Articles count 63, 153 kb
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THE FINISHING CLEANUP AND STRENGTHENING PROCESSING OF AGRICULTURAL PURPOSE CARS DETAILS
DescriptionResults of engineering and scientific search of improvement of resource-saving machine technologies of finishing and cleanup processing of cars details, development of new camps and technologies are presented. The possibility of low-frequency fluctuations with big amplitude can be implemented due to assembling flat or curvilinear elements on external surfaces of the relative screw reel. The use of computer modeling enabled us to obtain a relative screw drum that provides not only giving movement to loading masses with a big fluctuations amplitude, but also compression of loading masses in the process of their motion from loading to unloading. In such machines increase in processing efficiency is reached not only due to achievement of great movement amplitudes values of the loading masses, but also at the cost of compression of loading masses in processing and intensity increase of their mixing. The scheme of the machine for continuous processing with mechanization of separation of details from working environments particles is provided. Results of researches of quality and surfaces micro hardness change processed in the offered machines designs show that details processing time makes 3-6 min
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CURRENT STATE OF MECHANIZATION OF TOBACCO HARVESTING
DescriptionThe article presents results of studies of the present state of mechanization of tobacco harvesting. The aim of the research was to assess the state of the technical equipment of the tobacco farms in the current economic conditions. We have performed an analysis of the technologies of harvesting tobacco. Main problems of harvesting tobacco leaves were shown. We have analyzed the main constructive scheme of tobacco harvesters used for different technologies of harvesting tobacco leaves. The article gives main advantages and disadvantages of the applied technical solutions and lists tobacco harvesters used in foreign tobacco farms. A disadvantage was the impossibility of adaptation to the domestic types of tobacco. In the end, we have developed a project for solving scientific and technical problems of complex mechanization of technological processes of preparation of plantations to drying process, carrying out machine harvesting and preparing tobacco leaves harvested by the machine. This involves three stages. This will solve the problem of insufficient technical equipment of production of raw tobacco
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PREPARATION AND APPLICATION OF LIGHT WATER IN FOOD TECHNOLOGY
DescriptionWater is the most important substance of the composition of all living organisms on our planet. Active industrialization of society has led to an increase in the amount of water consumed for the needs of the economy and to increase the volume of poorly treated sewage. In the twentieth century, during the arms race, the United States, the USSR, Britain, France, China, in the tests of nuclear weapons, the deuterium content in groundwater and surface waters has increased significantly. Formed in nuclear fission neutrons loose, falling into the nucleus of a hydrogen atom form a deuterium atom. In the last 70 years, the deuterium content of water bodies has increased by almost 30%. Natural ponds and rivers no longer cope with self-purification of polluted water. In most regions of the country there are restrictions on the use of natural sources of water for drinking and bathing. Only the rare mountain springs and meltwater mountain tops glaciers have pristine purity of water with a low content of deuterium. There is reliable information about the harmful effects of heavy water on biological objects and the possibility of reducing the deuterium content in tap water by technical means. A method of producing so-called "protium" steam distillation of water proven in practice is based on the famous kinetic isotope effect difference of light water boiling temperature (100 С) and heavy water (103 С), but this method is characterized by higher energy costs. It is not economically justified. Another method of forming the light water is electrolysis, which in spite of the considerable power consumption has prospects of implementation. Our job is to create a viable water separation technology with a different isotopic composition. The resulting improved technology for water with DDW will be widely used in the production of beverages and a variety of other foods
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DESING OF AUTOMATED SYSTEMS IN SECURED EXECUTION OF MILITARY USE
DescriptionIn the work we have developed a structural modeling of the optimal choice of information security devices in the design of automated systems in the protected execution in the transition to network centric methods of control of troops and weapons
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Description
Long-term storage of fruits can be achieved by means of their special preparation by pre-treatment before storage by electromagnetic fields of extremely low frequency (ELF EMF). In the current study patterns of influence of ELF EMF pre-treatment of fruits on the effectiveness of reducing microbial contamination during storage for the development of effective technological modes of preparation of fruits before storage are revealed. Qualitative and quantitative characteristics of microbial contamination of the fruits’ surface were studied. Effective modes of fruits (apples and pears) treatment by ELF EMF were established - for apples: frequency - 22 Hz, current - 10 A for 40 minutes, and for pears: frequency - 26 Hz, current - 5 A for 50 minutes, allowing to reduce to the maximum extent the microbial contamination of their surface, and also to reduce the loss of their weight from microbial spoilage during storage. The terms of storage of processed by ELF EMF fruits under refrigeration were established - for apple varieties Idared and Golden Delicious - within 8 months, for pear variety Conference - for 7 months
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06.00.00 Agricultural sciences
06.00.00 Agricultural sciences
DescriptionThe impact of anthropogenic pollution on soil phytotoxity and on triticale plants in Vladikavkaz suburb was investigated in the work. The objects of the study were sod-gley leached soils and different varieties of triticale plants. The research was conducted in 2010-2011 at the Department of Biology of Gorsky State Agrarian University. The article gives data on microelements content in soils and plants within the range of influence of Vladikavkaz industrial enterprises. There was a marked change of miroelements’ mobility in soil and activity of their penetration into plants during fertilization. The sort characteristics of microelements’ accumulation in vegetative mass of triticale were researched. The conducted research is informative for soil and plant condition monitoring in anthropogenically polluted environment. The work indicates the increasing danger of microelements (including heavy metals) accumulation in soil and their inclusion in biological cycle in concentration that is too toxic for plants, animals and people during the usage of fertilizers, especially their high doses. The most dangerous among heavy metals are mercury, cadmium and lead. We used MPC rate of excess to estimate the content of these metals. The results of the research can be used in soil and cereal plant condition monitoring and diagnosis and in development of regional environmental regulation
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BEST AVAILABLE TECHNOLOGY AS AN ELEMENT OF ECOLOGICAL MODERNIZATION OF PIG-BREEDING
06.00.00 Agricultural sciences
DescriptionThe article analyzes the main factors of the negative impact of pig farms on the environment, for the characteristics of which are used criteria such as emissions of ammonia, methane, nitrous oxide, dust, loss of nitrogen and phosphorus in manure output, feed consumption and water consumption, economic evaluation, capital costs of reducing emissions, operational cost. The technical level, resource and energy consumption in the production of pork have been analyzed in a comparative perspective. The necessity of implementation of best available techniques in order to ensure environmentally oriented production growth has been provided. The importance of the development of technology selection algorithm and clarification the basic criteria for the selection has been emphasized. Also, there was detected the role of technical regulation for the prevention of excess pollution. The necessity of a comprehensive approach was proven for the implementation of NDT in the framework of environmental and industrial policies. Implementing NDT will provide the ecological modernization of pig production, which is confirmed by the experience of European countries, successfully implementing the concept of NDT from the 70s of the twentieth century. At the same time, not only economic measures should be used (exemption from pollution charges, grants and subsidies), but also the administrative tools (based on a valuation of NDT, integrated permits). Daylight technological regulation will provide "green" economic growth and will contribute to solving social and economic problems. Implementation of the project is not possible without the exchange of information, the definition of time and economic characteristics of the implementation of NDT, comparative analysis and classification technologies to NDT. In 2017, it has already been planned to publish the NDT reference "Intensive breeding of pigs,” while the implementation of best available technologies will become the basis of ecological modernization of the industry. The inclusion of the author to the technical working group on development of the handbook "Intensive breeding of pigs" allows to participate on-line in the discussion of topical issues
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06.00.00 Agricultural sciences
DescriptionThe article presents results of the study of yield, mechanical composition and quality of bunches of newest white grapevine varieties called Artemis, Sauvignon tamanskii and Inkroche tamanskii, in the conditions of Taman in the Krasnodar region. The yield of the studied genotypes ranged from 10.4 to 13.3 t / ha: the highest yield was in Artemis, and the lowest – in Sauvignon tamanskii. The average weight of the bunch was in Sauvignon tamanskii (152 g), the variety Artemis had 143 g and Inkroche tamanskii had 130 g of bunch weight. The percentage of berries in clusters ranged from 95.3 in Artemis to 95.9 in Inkroche tamanskii and Sauvignon tamanskii. The ratio of fruit mass to the mass of crests was 20.3 in the varieties of Artemis and 23.5 in Inkroche tamanskii and Sauvignon tamanskii. In genotypes of Artemis, Sauvignon and Inkroche Taman Taman the weight of 100 berries was 200, 160 and 130 g, respectively, the mass of 100 seeds - 4.6; 3.1 and 2.9 g, the average weight of the pulp from the juice to the weight of the skin - 24.3; 19.5; 15.9. The percentage of pulp and juice in clusters of the studied varieties was 85,9-89,1%, and the ratio of pulp to juice to the solid residue 6,1-8,2. Yield of musts from the studied sample was 74,5-75,4%. The content of sugars in the berries (17,5-19,6 g / 100 cm3) was dependent on the yield, the characteristics of varieties and timing of the harvest, but the harvest was favorable for the production of beverages and wine materials
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THE METHOD OF THE DRYING GRAIN INTENSIFICATION WITH ACTIVE VENTILATION USING MICROWAVERECYCLING
06.00.00 Agricultural sciences
DescriptionThe need of improving the grain drying technology is due to a significant volume of this operation, high specific energy and high standards to preserve quality of grain. In this regard, the development of new technologies and equipment aimed at reducing the cost of fuel and electricity, providing the preservation of grain quality has essential meaning to reduce the drying cost. Usually, the electrophysical effects on the dehydrated material not only contribute to the thickness reduction or destruction of the boundary layers and increase the surface of phase contact, i.e. they cause the combined effects of the intensification of the drying process that is economically favorable and they say for a broader practical use of electrotechnologies. Method of grain drying using microwave recycling in installations of active aeration bunker type allows increasing productivity compared with standard technology for up to 30% and reducing process energy consumption by 17%
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06.00.00 Agricultural sciences
DescriptionWe have proposed the method of presowing processing of seeds of winter wheat using a hydrophobic paraffin-wax system of the new composition. Water protected paraffinceresin coating has been used before for storage of garlic. However, the paraffin coating were not applied to wheat seeds and were not investigated their effect on germination, growth and further development of plants of winter wheat. This work has been done for the first time. The ceresin wax is replaced by sunflower wax. New component composition of the hydrophobic waterproof coating winter wheat seeds: sunflower wax – 15-20 % wt .; paraffin – all the rest of it. Sunflower wax is a surfaceactive substance and has the properties of the plasticizer and the dispersant of the dispersed structure of the paraffin. The advantages of this coating: it protects the seeds from moisture loss, regulates the timing of their germination, contributes to the preservation of accumulated nutrients, and enhances plant growth and development; it increases the yield of wheat. In the field, we have set growth stimulating ability of paraffin-wax coating of winter wheat seeds of variety called Charade. The resulting increase in yield was 20% (control of 52.6 с / ha), while maintaining the quality of grain. This use of sunflower wax solves an important environmental problem – disposal of oilseed production waste