05.00.00 Technical science
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Description
The article deals with the question of experimental studies determining the degree of traction resistance of reversible ploughs, when processing a combined plow. We have determined the optimal geometric dimensions of the developed additional working bodies experimentally
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FRACTOGRAPHY OF OPERATION FAILURE OF THE LITING GEAR OF BULLDOZER
DescriptionThe nature and causes of operational failure of the all-metal hydraulic cylinder rod of a bulldozer were studied. It is shown that the main mechanism of failure was evolving in time metal fatigue, initiated by defects of the heat treatment for chromizing
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PROBLEMS AND PROSPECTS OF TRANSPORT TECHNOLOGY FOR VILLAGES
DescriptionModern condition agricultural transport (a significant part of it about 70%) is characterized by a strong deterioration of the rolling stock, the unsatisfactory state of the production base. More than 30% of vehicles operated outside the normative service life, the rest approaching to that state. In general, the provision of agrarian and industrial complex with agricultural vehicles is way below agrotechnical requirements. In the long term, farm machine engineering should focus on indicators of the technical level achieved by best samples of foreign agricultural machinery. Priority development is likely to receive the development of innovative technologies that provide a significant increase in productivity, efficiency and resource conservation in agriculture. To address the shortcomings of transport services agrarian and industrial complex we should improve transport technology with the use of transport logistics, expand and update the existing vehicle fleet, but due to the low solvency of agricultural companies and high prices for of automotive engineering, the problem of providing agricultural vehicles becomes most acute. Thus, the creation of new science-based solutions in technology and engineering for transportation farm produce in terms of Russia's AIC is the actual scientific and technical task that contributes significantly to the development of the country, as well as enhances the enjoyment of breakeven, competitive manufacturing
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PRECONDITIONS AND FEATURES OF DEVELOPMENT OF “MICRO-CLIMATE” MANAGEMENT INFORMATION SYSTEM
DescriptionThe article investigates the experience of implementing automated control systems, which indicates that at the system design phase, it is difficult to choose a single criterion of control. Therefore, in the control system it should be possible to quickly set the criterion during operation, and methods of assignment should clearly reflect the agronomic, economic and technical requirements for the system. Thus, modern control system should allow to define not only one of the above control criteria, or a combination, but any other arising in the production process, providing agronomist-technologist opportunities in choosing a method of maintaining temperature and humidity conditions in the greenhouse. Greenhouse is a fastpaced environment and the state largely depends on the intensity of sunlight, humidity, direction and wind speed, the number of fertilized soil and its humidity. Competent and correct management of these parameters is a complex task and involves certain costs, but in the end allows you to benefit many times greater than the costs. The developed system called "Microclimate" will have a positive effect on any hosted sites, as it allows to increase energy efficiency and reduce fuel costs for heating greenhouses, electricity, water
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Description
The article describes the methods of calibration and working measurements, planning of experiment and experimental data processing, characterized objects of study and provides illustrations of research results of P-t depending for petroleum fractions. We have described the results of generalization of density (specific volume) of the examined samples in the liquid and on the saturation line and SVP in the two-phase region. The article shows that existing methods of calculation based primarily on the results of the study of the density and SVP of individual hydrocarbons and extremely limited experimental data of petroleum products. We have detected a necessity of creation calculation methods based on reliable experimental data, providing greater accuracy, substantiated choice of directions for research SVP and density of petroleum products. Modern technology of petroleum processing and using of petroleum products requires the creation of more perfect installation for the study of SVP of substances and obtaining experimental data with greater accuracy. Generalized analytic dependence of SVP of petroleum products from all determining parameters have not yet been received. Therefore, experimental determination of this pressure should be the basis of the calculation of any device, because the calculations of petroleum products by the formulas and nomograms obtained with considerable error
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ENGINEERING SUPPORT PARADIGM OF SUBJECT-ORIENTED CONTROL TECHNOLOGIES
DescriptionThe article presents the basic antilogy, which is attributed to forming an engineering support paradigm of new technologies related to the subject-oriented control in the noosphere, between the demand for an automatical creative thinking of a control subject and the vigilance of society to possible adverse effects of its subjective activities. It is stated that the noosphere, which showed miracles of automation and cybernation, covers all types of human activities, excluding above original positions, which they barely touched. Uppermost it is related to the central economics problem (economy management) – the choice. The problem how to build an engineering support paradigm of subject-oriented control technologies is analyzed; it is based on the known subject-oriented control concept supplemented by concept-based models of the intuition mechanism, which assume its modeling based on formal systems with the purpose to automate control subjects mental activity. From the standpoint of Schopenhauer’s cognitive theory, a research method is developed to investigate evolution and becoming of a particular human category – engineers, which are responsible for the steady development of noosphere of Vernadsky. As a basis, a dynamic phylogenesis model of engineer’s figure was taken, including ready and effective vectors with parameters (education, intellect, skills) and (prevision, choice, emergence), respectively. The results of ontogenesis modeling are given – regularities in future engineers’ preparation as a platform for quantization and convolution of its levels based on modern mathematical methods, including those for support engineers of subjectoriented control technologies
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Description
The article describes derivation of the regression equation which permits to determine the maximum water speed at the experimental cluster-type automatic drinking bowl which depend on temperature difference, angle of obliquity and shearing angle of the water-discharge pipe branches which are perforated by elevation
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STAND-ALONE POWER SUPPLY SYSTEM BASED ON RENEWABLE ENERGY SOURCES
DescriptionThe article discusses a promising direction, aimed at improving the operational and technical characteristics of the autonomous power supply systems, through the use of a part of their gas piston power plants, wind pow-er and solar photovoltaic installations
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ANALYSIS APPROACHES TO EVALUATION OF INFORMATION PROTECTION
DescriptionThe article is devoted to an actual problem of information systems’ security assessment and the importance of objective quantitative assessment results receiving. The author offers the creation of complex system of information security with system approach, which will be used at each stage of information system’s life cycle. On the basis of this approach the author formulates the general scheme of an information security assessment of information system, and also the principles of an assessment’s carrying out method choice. In this work the existing methods of a quantitative assessment based on object-oriented methods of the system analysis, and also the objectivity of the received estimates on the basis of this approach are considered. On the basis of the carried-out analysis, serious shortcomings of the used modern techniques of an information systems’ security assessment are allocated, then the idea of the scientific and methodical device providing the increase of objectivity and complexity of an information assessment means on the basis of expert data formalization creation necessity was formulated. The possibility of this approach application for expeditious receiving a quantitative information security assessment in the conditions security threat’s dynamics changes, functioning and developments of information system is considered. The problem definition of automated information systems’ security assessment is executed, and the general technique of protection means of information in systems of this type was formulated
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STUDY OF WATER IN THE STRUCTURE OF SWEET PROCESSED CHEESE BY NMR RELAXOMETRY METHODS
DescriptionThe quantitative distribution and condition of the water in the structure of processed cheese are defined in this article. The sequence of entering the components in the mixture to melt in the production of sweet processed cheeses is discussed