№ 121(7), September, 2016
Public date: 30.09.2016
Archive of journal: Articles count 138, 339 kb
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MATHEMATICAL MODELING OF ELECTRO TECHNOLOGICAL OZONIZATION OF EGG STORES OF POULTRY FARMS
Description
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
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Description
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
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Description
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
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THE TECHNIQUE OF A SECURITY TOOLS CHOICE FOR A CORPORATE NETWORK
Description
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
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MECHANIZATION OF HARVESTING AND PROCESSING OF TOMATOES
Description
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
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MECHANIZATION OF CUCUMBERS HARVESTING
Description
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
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06.00.00 Agricultural sciences
INFLUENCE OF BIOLOGICAL ADDITIVES ON RESISTANCE, METABOLISM AND EFFICIENCY OF PIGS
06.00.00 Agricultural sciences
Description
In order to reduce the impact of stress factors on the body of pigs, new technologies and efficient veterinary and preventive measures in breeding and cultivation are being developed. The results of our scientific and economic experiments found that the use in daily diets of pregnant and lactating sows according to our schemes of biological additives (to finish / day.): Laktobifid (1 g), Immunobak (1 g), Provagen (10 g ) Vetom 1.1 (50 mg / kg body weight), Bacell (0.3% by weight of the feed) and Monosporin (10 mL), contributes to the improvement of their reproductive qualities: for twins - on 2,2-12,2% by krupnoplodnosti - by 8,0-10,7%, for milk - by 8,9- 36,5%, at the preservation of pigs - by 1,3-8,3%, by weight of the nest 2 months of age - 22 , 9-38,9% compared with the control. At weaning piglets from sows experimental groups indicators of natural resistance were significantly higher. The best reproductive performance were observed in sows treated with diet and probiotic supplements Immunobak Bacell combined with Monosporin . The results of these experiments revealed adaptogenic properties of the studied additives, their ability to mitigate the impacts of technological stresses, reducing as a result of the cost of the products. Of great practical importance is the ability to predict the effectiveness of the use of additives which have antistress effect, depending on the body weight of animals, their age, frequency and duration of their application before and after the impact of technological stressors in the suckling period, the periods of rearing and fattening up of live weight and 100 и 120 kg
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CURRENT STATE AND PROSPECTS OF RICE SEED PRODUCTION IN THE KRASNODAR REGION
06.00.00 Agricultural sciences
Description
We have performed an analysis of the current state of rice seed production in the Krasnodar region. It is shown that over the last 10 years in Kuban a full variety changing took place, which was caused by State support of rice seed production on the federal and the regional levels. Agricultural producers of the Krasnodar region have completely stopped cultivation of medium-ripening rice of Liman variety, increasing acreage of new varieties such as Victoriya, Sonet, Diamant, etc. which allowed to increase crop yield from 47,1 centner/ha in 2006 to 63,0 centners/ha in 2015 and to improve the quality of commercial grain, decreasing the content of red-grain forms average in the Krasnodar region from 20,5% in 2006 to 1,8% in 2015. Legal basis of realization of state agrarian policy in the field of seed production of agricultural crops, including rice is reviewed, recent changes in the legislation of the Krasnodar region concerning seed production of agricultural crops are shown, as it was reflected in the Law of the Krasnodar region № 3062-KZ dated 28.11.2014 "On the regulation of certain relations in the field of seed production in the Krasnodar region". Areas contributing to the development of the rice seed production in the Kuban region are identified for further conducting of variety changing, introducing new high-yielding varieties into production as well as varieties of special purpose for import substitution
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06.00.00 Agricultural sciences
Description
The article presents a study of acclimatization characteristics and the effectiveness in the use of Holstein black-and-white cattle imported from Germany, Denmark and the USA under the conditions of the Central Non-Black Soil Area of Russia. The analysis shows that the imported animals are exposed to a number of stress factors that often cause the diseases and serious losses of cattle. The main reasons for the losses of heifers were the pathologies of the reproductive organs and the mammary gland (26,3%), locomotor system and distal extremities (15%), respiratory organs (21,2%), etc. The highest-producing dairy cows were those imported from the USA (9158 kg of milk throughout the first lactation). For the yield of milk, they are superior to animals imported from Germany in 1828 kg (P≥0,999) and those imported from Denmark in 1184 kg (P≥0,999). The average American Holsteins’ milk over a 305-day lactation is higher in fat (4,14%) than that of their German (in 0,28%) and Danish (in 0,21%) counterparts (P≥0,999). The same tendency is observed in the protein content in the milk
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ROLE OF PUMPKIN FLOUR IN FORMATION OF QUALITY OF WAFERS
06.00.00 Agricultural sciences
Description
To study the effect of pumpkin flour on the physical and chemical parameters of semi-finished and finished products, 10, 15, 20 % of the weight of wheat flour in the dough was incorporated to the dough mass. As a result of the research and the analysis of wafers with different PF dosages, the dosage of 15 % pumpkin seed flour from the wheat flour mass in the dough was accepted as the optimum one. After selecting the optimum dosage, the experiment on identifying the dependence of dough viscosity on the shear rate was carried out. The samples were taken without adding PF into dough and with adding PF for 15% from the weight of the flour in the dough. The results showed that the viscosity of the control dough sample was higher than that with 15% of flour from pumpkin seeds. This is due to the general decrease of the amount of swellable proteins in the dough due to the incorporation of PF. Thus, we can conclude that the introduction of the investigated additive into the wafer dough does not obstruct dosing the semifinished product into the wafer moulds. The analysis of the obtained data as a result of the research work has shown that incorporating pumpkin seeds flour into the recipe of wafers is expedient both in terms of enriching the product with proteins, fats and biologically active substances and in terms of improving the process in the production
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