Don State Technical University
Author list of organization
List of articles written by the authors of the organization
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ABOUT THE DEVELOPMENT OF KNOWLEDGE MANAGEMENT SYSTEMS OF TECHNOLOGY SERVICE COMPANIES
DescriptionIdentification of the processes of knowledge manage-ment technical service companies was done. A general model of field subject was presented in the form of ontology. Software ontological modeling was re-viewed
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THE RATIONALE FOR THE USE OF COMBINED UNITS IN THE CULTIVATION OF WINTER WHEAT
06.01.01 General agriculture, crop production (agricultural sciences)
DescriptionIssues related to the use of combined aggregates in soil preparation are relevant and of scientific and practical interest. The relevance is increased when it comes to the cultivation of the main crop – winter wheat. In this regard, the presented results on the efficiency of using combined aggregates in preparing soil for winter crops are important primarily from a practical point of view. Experimental studies were conducted in the conditions of long-term stationary experience in the Federal state budgetary institution «Agrarian Science Center «Donskoy», Zernograd, Rostov region. The article considers the efficiency of using the combined unit APK-4, developed in "SKNIIMESH" now Federal state research institution of the «Agrarian Science Center «Donskoy» in the cultivation of winter wheat. The structural and technological scheme of a combined unit, the technological process of which consists of several technological operations performed at the same time, is justified. Disk working bodies crush plant residues and destroy weeds. This creates a network of cracks in the underlying soil horizons. Next, there are flat-cutting working bodies that loosen the soil to a set depth. The root system of weeds is pruned, the remaining loosened soil layer is loosened to the required depth, the formation of a smooth bottom of the "furrow", and the separation of erosive soil particles to the bottom of the furrow. Next, the roller starts working – a lump-crushing sealer, which provides crushing of soil lumps on the surface and sub-compaction of the treated layer. The last in the technological chain is a mulching roller, which provides the formation of a compacted seedbed for seeds with simultaneous mulching of the compacted soil layer. The use of the combined unit in the technology of winter wheat cultivation allowed to reduce the number of technological operations by 1,5-2,5 times, increase the productivity of winter wheat by 11-13% and the cost of production by 10,4-18,3 %
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FEATURES OF TECHNICAL RISK ASSESSMENT UNDER NON-DETERMINISTIC STOCHASTIC PARAMETERS
05.20.00 Processes and machines of agroengineering systems
DescriptionThe article considers a variant of parametric representation of a complex product of single use in the process of its creation during tests, when structural failures of the product or its components in one or more parameters specified in the technical specification require modifications leading to a change in the general amount and repeating of the tests, but it is possible to reduce the volume of tests by taking into account a priori information. This is especially up-to-date while ensuring the reliability of complex single – use products, the components of which are first stages of ground tests, and only then as part of complex products-the stages of flight tests. Structural failure of any component of such a product at the stage of ground tests does not lead to such consequences as if it occurred during flight tests as part of the product. Meanwhile, the refinement of the component element of a single-use product, the structural failure of which occurred at the stage of flight tests as part of the product, and the assessment of its effectiveness, can be carried out at the stage of ground tests, in the case of consideration of a complex product in parametric form. This can significantly reduce the cost of flight testing of a complex product, in the case of effective completion of the component element of the product at the stage of ground tests, without a significant (temporary) decrease in the overall reliability of a complex single-use product
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USE OF MECHANICAL CLEANING AND COLOR SORTING OF SEED GRAIN AND CORN COBS IN MODERN TECHNOLOGIES
DescriptionSpecial aspects of grain heap and corn cobs trapping by modern mechanisms and plants with photoelements have been considered, also the main ways of their functional developing are disclosed
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USE OF MECHANICAL CLEANING AND COLOR SORTING OF SEED GRAIN AND CORN COBS IN MODERN TECHNOLOGIES
05.20.00 Processes and machines of agroengineering systems
DescriptionSpecial aspects of grain heap and corn cobs trapping by modern mechanisms and plants with photoelements have been considered, also the main ways of their functional developing are disclosed
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RESULTS OF RESEARCHES OF THE POSSIBILITY OF VIBRATION GRAIN SEPARATION FROM THE EAR
05.20.01 Technologies and means of mechanization of agriculture (technical sciences)
DescriptionEnhancing the operative parts of a threshing mechanism which are realizing direct mechanical impact on an ear and being in it grains it is impossible to achieve the considerable lowering and to completely exclude traumatizing grain. New methods of noncontact grain separation from an ear in case of the threshing need to be developed. These methods exclude direct mechanical impact of operative parts on grains. A perspective method of noncontact grain separation from an ear is the imposition to a culm with an ear of oscillating motion, perpendicular its axes. It is a resonance in different parts of an ear can cause. As a result of the pilot and theoretical studies it is set that when impart low frequency oscillations in the range 18…100 Hz corresponding to natural frequencies of its oscillations to a culm with an ear, it is possible to achieve corrupting of the ear or its separation from the culm as a result of a resonance. But grain separation, at the same time, does not come from an ear as the range of natural resonance frequencies of grain oscillations does not match the range of natural frequencies of a culm with an ear and has higher values. The analysis of results of theoretical researches shows that for noncontact grain separation from an ear without its traumatizing is the imposition to it high-frequency oscillations in the range 100 … 14000 Hz matching its natural frequencies of oscillations, which is proved to be perspective. The occurring resonance causes origin of own movements of grain that leads to its separation from the ear
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Description
The specificity of the Byzantining direction in architecture of Romania at the end of XIX- the first half of XX is determined by the presence of two lines: indirect using of Byzantine elements in secular architecture and the "pure" Byzantine style in the architecture of temples. The article is devoted to identifying the particularities of stylistic evolution of Byzantining direction of Romanian architecture in the way of the church construction. Romanian researchers follow to the division of national style into three stages (1886-1906; 1906-1918; 1918- the beginning of 1940)based on socio-political events of 1906-1918 years. Recognizing the certainty of this view the author offers to define it in relation tot he Byzantining direction of the church construction and highlight in its stylistic evolution the following stages: the last third of XIX century is the late historicism; the end of XIX- the end of 1910 s –modern; 1920 s-the first half of 1930s-the interaction of the trends of late historicism, art Deco and partly of functionalism,mid- 1930s - early 1940s-functionalism;the influence of expressionism. In the article the peculiarities of the development of the Byzantine heritage in the temple architecture of Romania have been seen, the medieval prototypes of voluminous and spatial compositions and décor have revealed. The Byzantine style in the architecture of Romania, formed in the tideway of European trends on the base of the Byzantine components of medieval Romanian architecture, became one of the way of solving the problem of national self-identification and leading due to its supranational empire character in expressing the idea of state unity by means of architecture
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Description
Based on the analysis of modern scientific approaches to the construction of complex information-measuring systems, we have formulated a circuit solutions model of a distributed system of control of parameters of soil, the implementation of which will allow to build systems in small businesses
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THE IDENTITY OF THE MEDIEVAL FORTRESS ARCHITECTURE ON THE RIVER GODLIH AND OF THE HUMARA SETTLEMENT
DescriptionThe article describes a scientific hypothesis about architectural and spatial identity of a medieval fortress at the mouth of the river Godlih and of the Humara settlement on the Kuban river. It is revealed that the planning structure and spatial organization of these medieval monuments are similar and consist of three parts each: the citadel, the fortress and the open settlement. The citadel was a monumental multi-tiered tower surrounded by a courtyard and a defensive wall. The fortress perimeter was surrounded by a defensive wall fortified with square towers. The open settlement had no artificial fortifications, and was located in a remote place in the vicinity of the citadel and the fortress. The architecture and construction of the walls and towers of both castles are made in the tradition of the Byzantine building culture. Stone setting of the walls and towers of the fortresses represent a veneer made with armored rows of stones with the backing made with crushed stone in lime-stone mortar between them. Because the fortress at the mouth of the river Godlih was badly damaged during the construction of the Tuapse-Adler railway, we can, basing on the analogy revealed, carry out a hypothetical reconstruction, that will serve as a theoretical justification for its restoration and museums
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MANAGEMENT OF AN UNIVERSITY: EM-PLOYMENT AND PROFESSIONAL DEVELOP-MENT OF GRADUATES
DescriptionNeed of goals management by university on an indica-tor "employment" is proved. The problem definition is executed and ways of improvement of a control sys-tem by university and market policy are offered. Re-sults of the analysis of external impacts on an university as social and economic system, the maintenance of an exit of system, relationships of cause and effect of an exit and a system entrance are given