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  • Development of microprocessor control system for seed sowing

    Automation of agriculture is currently a promising and actively developing branch of robotics. At the moment, there are many foreign analogues offering ready-made solutions for automatic control of sowing crops. However, in Russia, most of the sowing is carried out on mechanized plants under the mandatory supervision of a highly qualified specialist in the maintenance of the plant.

    Keywords: seeding control, microprocessor system, selection, seeding algorithm, system architecture, hardware, system structure, layout base, management methodology, import substitution

  • Development of an interface and software for the implementation of an automatic seeding system

    Automation of agricultural production is one of the main tasks in the modern world. One of the areas of agriculture, which is primarily in need of automation, is selection, since manual labor is used in most technical operations. This article discusses the software with which the system of intelligent seeding will be implemented.

    Keywords: intellectual seeding, software, selection, seeding algorithm, interface, hardware, process structure, data block, calculation procedure, import substitution

  • Renovation as a form of modernization of urban areas

    Cities around the world lack land resources, despite the fact that the housing stock is in a state of extreme deterioration. The solution to this problem becomes such a concept as renovation - the process of updating urban space. This mechanism is currently provided for in the Town Planning Code of the Russian Federation, but for a number of reasons its implementation in practice is limited. Renovation is necessary in the prevailing conditions of the modern world in order to adapt the spaces of former industrial zones for their use in an already new format. The vast majority of industrial companies cease to operate within cities, and their territories turn into neglected neglected development, isolated from the urban social environment. The authors of this article reviewed and analyzed the benefits of implementing renovation programs for residents of the Russian Federation.

    Keywords: renovation, eco-construction, depressed territories, modernization of urban areas, development of regions, redevelopment buildings

  • Language for describing models of objects and processes for a system for automatically generating monitoring programs for the Internet of things

    Models of monitoring program generation systems are proposed that can significantly reduce the cost of time and other resources for monitoring complex technical objects. Systems are considered at several levels: subsystems and modules, communication links, usage scenarios, physical representations. A technique for adapting system models to subject areas is proposed.

    Keywords: complex technical object, monitoring, models of software systems, program generation

  • On the issue of of possibilities and areas of rational application of 3D printing technology for building structures

    The article contains information about the results of the analysis of features and world experience in the application of well-known types of 3D printing technology in the construction industry. The advantages, disadvantages, and the identified area of rational application of technology in various construction cycles of the main period of the creation of buildings and special structures are clarified.

    Keywords: construction, 3D printing, 3D building printer, concrete mix, concrete extrusion, 3D spraying, labor costs, pace of construction, concrete work, layer-by-layer extrusion method

  • Methodology for the deployment of dual-use military infrastructure facilities and a model for optimizing the deployment of a service network

    The article discusses the methodology for deploying dual-purpose military infrastructure facilities, including a model for optimizing the placement of the service network in garrisons, where it has already developed, and the question is its reconstruction and expansion. The calculations are made on the example of service in military camps. To optimize the placement of the service network, a criterion is adopted to minimize the service time.

    Keywords: garrison service, service network, service center, hierarchy, gravity model of gravity, the theory of central places, commodity circulation, a military town

  • Ways to solve the problem of siltation of the Krasnodar reservoir for the rational use of water resources of floodplain territories

    This article presents the results of solving the problem of silting of the Krasnodar reservoir for the rational use of water resources of floodplain territories. The forecast of changes in sediment for the future is determined taking into account an increase in the overgrowth of the reservoir, further processing of the coastline, as well as a decrease in afforestation and an increase in cultivated areas in the river basin. Kuban. Given these factors, the increase in sediment volumes in the reservoir alignment will increase annually by 0.13% and by 2036 will amount to 18.01 million m3 per year. The main measures to improve the transport of sediment into the dead volume bowl are considered, and ways to solve the siltation problem by clearing the flooded riverbeds are proposed to be carried out by the method of stirring, since this method is used in reservoirs with flow, because its essence lies in the fact that silt sediments are agitated with the help of a floating dredger with water jets and the pulp is not sucked into the dredger, and suspended sediments are transported by the flow of water into the bowl of the "dead" volume of the reservoir. The use of this method is recommended for economic reasons, since it is 2.4 times cheaper than cleaning with pulp removal. The actual use of the Krasnodar reservoir is currently consistent with the design purpose. Sediment runoff in the river basin Kuban is determined by water erosion. Water erosion is especially pronounced in the mountainous and foothill parts, which is facilitated by the mountain-valley relief and large slopes of river channels. Precipitation falling on the underlying surface, in particular intense downpours, heavy snowmelt, debris material is washed off the catchment area into the river, forming a sediment runoff. An important role here is played by the composition of the rocks that make up the catchment, its afforestation, agrotechnical and water management measures carried out on the catchment area and in the riverbed.

    Keywords: siltation, reservoir, water resources, floodplain territories, rational water use, water resources

  • Mathematic modeling of the elasto-plastic state of a rotating disk

    Within approaching the plane-stress state the problem of a high-speed rotating disk being under side pressure is considered. Within the model of a perfect rigid-plastic body and the Mises yield criterion the values of external parameters for which the plastic zones appear have been defined. The stresses in plastic zones are obtained from the solution of the Cauchy problem, which includes two differential equations to define the stress tensor nonzero component. In order to estimate the stress state in the elastic zone the equivalent stress is introduced. The maximum allowable values of external parameters are obtained from the solution of the problem when the disk is in the limit state. The numerical results are represented as the stress vector hodograph.

    Keywords: the plane-stress state, Mises yield criterion, the equivalent stress, an elasto-plastic solid, a rotating disk, a stress vector hodograph

  • On the issue of monitoring the operational reliability of rice irrigation systems in southern Russia

    This article presents the results of monitoring the operational reliability of the on-farm network of rice irrigation systems. The issues of planning and prospects for its improvement on the basis of the introduction of modern laser scanning systems and digital a control systems are considered. In the Krasnodar Territory, the main consumer of water resources is agriculture, which absolutely prevails in terms of water withdrawal among other consumers. The most expensive water resource is the rice water industry. Its share is about 90% of the total water consumption in agriculture. To prevent degradation of the ecosystem of the river. Kuban and achieving the objectives of the Water Strategy by 2020, irrevocable water withdrawal must, at a minimum, be stopped at the achieved level. Satisfying growing water needs and introducing new water users should be implemented through water conservation in the systems of existing water users.

    Keywords: monitoring, residual resource, rational water use, water resources, on-farm network facilities, rice irrigation systems, technical condition

  • Technological aspect of rationalization of solutions of cable-stayed coatings of large-span sports objekts

    The work is a continuation of the study of cable-stayed roofs of large-span sports buildings, it focuses on the technological aspect of the construction of stadiums and sports palaces. Due to the introduced criterion of the location of the assembly of structures, the systematization of technologies for the construction of facilities currently commissioned has been carried out. The result of the work is a comparative table that allows to rationalize the choice of methods of pre-assembly and installation.

    Keywords: cable-stayed covering, large-span building, steel cable, cable, pylon, sports building, stadium, hanging roof, cable installation, pre-assembly, jack, disassembly of scaffolding

  • The use of logging waste in the construction of buildings and structures

    Today in Russia there is an acute problem of processing of waste of the logging and wood processing industry. At almost all stages of timber production, waste is generated, which is disposed of or left to rot. Felling residues obtained in the process of cutting operations are used least of all. Currently, loggers leave up to 30 % of only the stem of trees, primarily low-quality wood, not to mention twigs, conifers, stumps, while logging waste is a valuable raw material that can and should be used for further processing. The article discusses the prospects for the development of the timber industry, including related to the rational use of wood resources. A number of experiments were carried out in order to determine the influence of design and technological parameters of knife equipment on the quality indicators of wood-fiber semi-finished product.

    Keywords: insulation material, finishing material, grinding, wood fiber semi-finished product, cutting waste, integrated use of wood, grinding machine

  • Numerical study of the performance of a layered reservoir based on the model of non-piston displacement of oil by water

    On the basis of the model of non-piston displacement of oil with water, a mathematical model, algorithm and software product are presented, which allows to conduct numerical studies of the indicators of the development of a layered layer, taking into account the method of flooding the field: reservoir water temperature or hot water.

    Keywords: continuity equation, heat transfer equation, non-piston displacement of oil by water, finite-difference scheme

  • Mathematic modeling of a thin rotating solid disk being heat and force affected

    Mathematic modeling of the state of a thin round disk being heat and force affected is performed. In the central part of the disk the homogeneous field of temperatures is formed. Within the deformation theory of a perfect elasto-plastic solid the quadratic plasticity condition is chosen. The relationships between the radius of the disk, the temperature of the central part of the disk and the external pressure which defines the appearance of plastic zones have been established. For different values of external parameters of the model the stress vector hodograph and the plots of stresses and equivalent stresses have been introduced.

    Keywords: mathematic modeling, an elastic-plastic solid, the plane-stress state, the deformation theory, thermo-elasto-plasticity, a high-speed rotating disk

  • Rationalization of technological, structural and architectural solutions of cable-stayed roofs of long-span stadiums

    The paper presents an analysis of stadiums with cable-stayed roof, in the context of progressive solutions used in various construction cycles. On the basis of the systematization carried out, the directions of the rational use of the identified methods of reducing material consumption and deformability, increasing the rigidity, stability of structures, improving the efficiency of installation work have been highlighted.

    Keywords: cable-stayed roof, long-span building, steel cable, aerodynamics, cable-stray, pylon, sports object, stadium, hanging roof, translucent roofing, light opening roof, monitoring system of the technical condition of the object, cable roof mounting

  • Organizational and technological solution for automation of production processes of reinforced concrete products and structures

    The accumulated experience of the advanced enterprises of the construction industry and numerous developments of design and research organizations are the basis for the transition to full automation of production of precast concrete structures of the new generation, to the creation of automatic plants that perform the entire production cycle (from receiving raw materials to sending products to the consumer). Technical re-equipment provides a significant improvement in the activities of precast concrete plants, but does not create conditions for direct overgrowth. Automation of the process of production of reinforced concrete requires the use of automated tools to control the quality characteristics of concrete products, information from which can be used for optimal production management. In order to ensure the development of production of reinforced concrete products and structures by improving existing and finding new, improved methods of production of precast concrete products, it is necessary to use robotics, computerization and electronics.

    Keywords: automation, automation system, dispatching automatic control, improvement of technological lines, organization of construction production, construction, modern technologies, BIM technologies, robotics, electronics, technological re-equipment