№ 133(9), November, 2017
Public date: 30.11.2017
Archive of journal: Articles count 94, 254 kb
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06.00.00 Agricultural sciences
CROP YIELD OF WINTER BARLEY GRAIN WITH THE APPLICATION OF VARIOUS GROWING TECHNOLOGIES
06.00.00 Agricultural sciences
DescriptionThe experiment considered the influence of different methods of agricultural technologies on the yield of winter barley in the dependence of the investigated factors. The studies were carried out at the experimental station of Kuban State Agrarian University in the conditions of multifactorial longterm soil monitoring. The experiment was carried out in a typical 11-field grain-grass-tillage crop rotation with the following alternation of crops: alfalfa, alfalfa, winter wheat, winter barley, sugar beet, winter wheat, corn for grain, winter wheat, sunflower, winter wheat, spring barley with sowing of alfalfa. Stationary experience is represented by the following factors: the level of fertility (factor A); fertilizer system (factor B); plant protection system (factor C) and methods of basic soil cultivation (factor D). The relationship between the influence of the soil fertility level, fertilizer norms, plant protection products, the soil cultivation system and yield, and the crop structure of the perspective winter barley variety ‘Gordey’ were determined. The soil is chernozem leached superheavy light-clay with an average thickness of the humus horizon - 150 cm. It is found that fertilizer, soil treatment, seeding method; protective means increase the yield of winter barley and positively influences the elements of the yield structure. The yield increase in comparison with the control changed from 10.4 to 26.8 c / ha. The statistical processing data show that the fertilizer system (35.8%) and soil cultivation (27%) had a certain influence on the number of productive stems; the fertilizer system (44.6%) influenced the spike size, the fertilizer system (28%) and the tillage (32.8%) had influence on the amount of grain in the spike and influenced the mass of grain from the spike
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EVALUATION OF VERTICAL MATERIAL IN SELECTION TO IMPROVE RICE PRODUCTIVITY
06.00.00 Agricultural sciences
DescriptionIncreasing the productivity of agricultural plants, including rice, is the most important area of breeding. The creation of varieties with vertically leaved architectonics allows to have a qualitative approach not only to the process of formation of a highly productive agrocenosis, but also to solve questions of assessing the productivity of rice. To create highly productive varieties, it is necessary to develop new, more efficient methods of selection
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06.00.00 Agricultural sciences
DescriptionThe fattening of Holstein cattle for more than 90 % provides the beef cattle division of the firm «Agrocomplex» based in the village of Vyselki, the Krasnodar region. The share of the Aberdeen Angus breed is 6.3 % and Charolais at 0.6 %. The reason for insufficient supply with fattening complex of Charolais cattle is a high indicator of severe parturition, postpartum complications, and reduced productive longevity of cows of breeding herds of these breeds. In a "Livestock complex" bulls of breeds of Holstein, Charolais and Aberdeen Angus reach the required values of live weight for the established standards of the breeding time. Charolais have the best indicators of absolute and relative weight gain and the shortest feeding season. The profitability of cattle fattening in CJSC company "Agrocomplex" is low, but the efficiency of the industry is ensured by the presence of its own processing plants. To improve the profitability of beef production it is required to increase the proportion of specialized breeds for meat productivity; to generate the most uniform by age and live weight of the group; identify the cause of the high rate of culling of Charolais cows for postpartum complications and take action to address them
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SOIL PRODUCTIVITY OF DRAIN AGROLANDSCAPES DEPENDING ON THEIR MELIORATIVE CONDITION
06.00.00 Agricultural sciences
DescriptionIn the soils of rice fields, eluvial gley processes develop, which are manifested in redistribution of silty particles along the profile, water-soluble humus, mobile compounds of iron and phosphorus. Most intensively, these processes are developed in meadowbog soils, confined to closed depressions of the plains plain. Meadow-black soils lying on elevated relief elements have more favorable physical, physicochemical and oxidation-reduction properties for cultivating rice and accompanying crops in crop rotation. The highest yield of rice is formed on high checks and higher at 12,4 c/ha than on low ones
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SIMULATION OF A POWER TRANSFORMER WORK WITH A HIGH LEVEL OF HIGHER HARMONICS
DescriptionThe importance of improving the quality of electrical energy was growing along with the development and wide implementation in the production of valve converters and various highperformance processing units, such as arc furnace, welding machines etc. The main causes of potential and existing non-compliances of non-sinusoidal voltages can be joining sources and non-sinusoidal reactive power sources, including resonant filters, to existing electric grids without taking into account their possible impact on the distortion of the sinusoidal voltage. Transformers are affected by the non-sinusoidal shapes of the curves of current and voltage. The effect is characterized by the fact that the harmonics of current and voltage increase transformer temperature, compared to purely sinusoidal current and voltage. The aim of this work is to study the influence of higher harmonics on power loss in power transformers. Experimental study of operation of power transformers was carried out on the developed model of the transformer substation. The experiments were conducted with different capacities of transformers that have variables in the range of 250-1000 kVA. By using programmable voltage source a sinusoidal voltage is formed containing the third, fifth, sixth, seventh, ninth and twelfth harmonics. The level of harmonics is changed in the range of 2-12 %
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A SURFACE RUNOFF CLEANING PLANT FOR THE TERRITORY OF THE NOVOROSSIYSK SEA PORT
DescriptionThe article considers scheme of sewage treatment plants AG-STOK of Novorossiysk trading sea port, designed to clean the surface runoff from the territory of industrial sites and residential areas to the norms of discharge in the drainage network. The installation includes a well-separator, a storage tank, mechanical cleaning of solids on a mechanical filter, filtration through a filter with granular loading and filtration through a filter with sorption loading. The treated runoff, which corresponds to the conditions of discharge into the urban drainage network, accumulates in a tank of clean water and is diverted to the storm sewer network. There are: the scheme of treatment facilities, the explication of equipment, a photo of a mechanical filter, a filter with a granular load and a filter with a sorption load. The indicators of surface runoff correspond to the norms of the maximum permissible discharge
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PARAMETERS OF RESEARCH ACTIVITY OF STUDENTS AS CRITERIA FOR DIAGNOSTICS OF EDUCATIONAL ENVIRONMENT
DescriptionThe article reflects the relationship between the parameters of research activities of students and the characteristics of the educational environment in higher education. It is known that the research activity of students is an integral part of the educational process, therefore, the parameters of research activity can and should be indicator variables reflecting certain aspects of the educational environment. According to modern views, all types of research activities of students (educational, research, scientific and practical and research) is the most important mechanism for the development of their research competence. In addition, the parameters of research activities of students - the reflection of the relationship of scientific and educational activities in higher education, and this - one of the most important factors of competitiveness of the educational environment. The authors substantiate that the parameters reflecting the research activity of students characterize, first of all, such aspects of the educational environment as its intensity, social activity, dominance, coherence, mobility, stability, reliability and efficiency. This is due to the fact that the research activity of students is a transdisciplinary process that depends on the same factors as the educational process as a whole and is characterized by the same didactic goals (tasks) as the educational process as a whole. In identifying the relationship between the parameters of research activities of students and the characteristics of the educational environment, the authors also took into account the relevance of such a task as ensuring continuity between levels of continuing education. The theoretical significance of the results of this study is that they can be the basis for further scientific understanding of the problems of the quality of education and the effectiveness of educational environments, the practical significance is that they can be applied in the systems of socio-pedagogical and psycho-pedagogical monitoring and the effectiveness of the educational environment, as well as monitoring the student's personal and professional development). Methodological bases of research: system, sociological, competence, probability-statistical and qualimetric approaches (leading methodological basis - competence approach). Research methods: modeling; methods of graph theory, sets and relations; systemiccognitive analysis; methods of qualimetry (theory of latent variables); methods of mathematical statistics (first of all - the method of rocky scree); methods of the theory of limits
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SEMANTIC SEARCH ENGINE BASED ON ONTOLOGY MAPPING
DescriptionWe live in a world of rapidly developing information technologies, where many organizations are related to each other, forming complex information networks. Therefore, storage, analysis and retrieval of information is a very complex and urgent task. In connection with the advent of search engines and communications, millions of people are engaged in the search and retrieval of information. Commercial search engines, such as Google, use keyword search based on logical queries. The main disadvantage of this search is that it returns a lot of irrelevant information, which leads to low accuracy. In this article, we focus on building a semantic search system based on the mapping of the ontological model. This includes various stages of development of ontology, the phase of indexing and information retrieval
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RESTORATION OF WORN DETAILS OF AGRICULTURAL MACHINERY WITH GALVANIC COATINGS
DescriptionWe have conducted experimental and analytical studies showing the relationship of constant and pulse forms of current sedimentation on the physicochemical properties of chrome coatings: adhesion strength to the substrate, residual stress, fatigue life, elongation and contraction, yield stress, and endurance. We have shown the methods and modes of use of dilute electrolyte of chromium plating with organic additives, is capable of applying a chrome coating on parts of agricultural machines, surpassing the properties of the coatings obtained from electrolytes that are recommended by the GOST standards. The proposed hardening chemical-thermal coating technology for chromium in the manufacture and repairing of worn parts of agricultural machinery (rods of hydraulic cylinders, journals of crankshafts, spools, parts, gearboxes and transmissions, etc.), identifies the consumption of additives modifiers, proposed methods for their determination, confirmed by patents for inventions. The proposed technology of worn-out surfaces of parts of agricultural machinery of layer-block structure of the chromium coatings with improved properties. The influence of modifying organic additives on the structure of the intermediate surface film of colloidal trivalent chromium compounds, which in combination with the parameters of the bipolar pulse current allows you to specifically adjust the physical and mechanical properties of crystals of the deposited chromium layer with a grid of cracks, and without them for the required operating conditions of dry friction or oil environments, which increases the durability of the parts during use. The increase in yield, at the current 6-8 %, to 4 times reduces the degree of hydrogenation of the restored details, up to 3 times reduces internal friction, roughness, improves the limits of strength, toughness, elongation and contraction, increases corrosion resistance up to 3 times, obtained chromium coatings
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CONSTRUCTIVE EFFECTS OF CLOTHES AS A LEADING DIRECTION IN MODERN CLOTHES DESIGN
DescriptionThe article presents the analyzes results of the deconstructive approach to the process of garment designing, which consists in structural defects modeling; it develops the systematization of projected design effects based on the study of modeling defects, analysis of their appearance and methods of elimination. The purpose of the research is the further development of designing methodology of structural defects in sewing products