05.00.00 Technical science
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Description
The article is devoted to the gradual development of an information system for automated distribution of applications, the development of the necessary organizational diagrams, decomposition charts, as well as constraints the design stage. With the help of a program complex, the request from the client is submitted to the Deputy Director for production, which makes the decision about treatment (accepts or cancels the request). Also via software package, the application is sent to the Deputy Director for the status of implementation, as well as the Director, the chief accountant and the client. Each Department has the ability to contact the Deputy Director for operations for the consultation when a problem occurs with the implementation of the application. After obtaining the status of completed applications in the software package, the chief accountant reports to the Director. A set of methods and techniques of organization of information processes in production systems which allow the selection and the use of an information technology solution for the synthesis of knowledge about the work situation is the content of the concept of formation of information resource management for system knowledge-intensive production. Management system information space manufacturing organizations are formed in a specific environment, which is characterized as an information resource management system – a system of organization of internal and external flows of information, as well as methods and tools for searching, processing and distribution of information in the organization
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STAGES OF MOVEMENT OF THE FOURLINK ROBOT MOVING WITH THE JUMP FROM THE SURFACE
DescriptionThe settlement scheme of the four-link robot moving with a jump from a surface is provided, the jump of the device is described in the form of sequence of stages, on each of which links of the robot make certain types of movement, the mathematical model in the form of the differential equations describing movement of the robot at all stages is developed, results of numerical modeling of a jump according to the specified sequence of stages are presented
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Description
The article is devoted to the plant of alternating illumination for crop growing in the protected soil. The unit forms light conditions by the moving illuminators and by proper gradient angle of the working surface. Characteristic of the unit allows us to produce efficient space and surface distribution of the optical radiation. It let us reduce energy intensity of the hothouse crops growing, increase uniformity coefficient of irradiation, improve the quality of agricultural products
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SUPPLYING THE GREENHOUSES WITH POWER BY THE USE OF ASYNCHRONOUS GENERATORS
DescriptionDue to the recommendation of the World Health Organization, the standard rate of vegetables consumption for a person per year is 130-150 kg, including up to 15 kg of fresh production during the off-season. To meet these standards in Russia, the construction of greenhouses and greenhouse complexes was sped up. To cultivate the bulk of vegetables in the conditions of protected soil we have mostly used winter greenhouses. At the same time, in terms of the climatic conditions, the main production costs are accounted for energy carriers (up to 60 – 70%). The main consumers of energy in greenhouses are plants’ lighting and creation of the required temperature conditions for plants and soil. Annual increase of rates for energy carriers affects the cost of the greenhouses’ production. To increase the energy efficiency and independence in greenhouse complexes, it is proposed to use installations based on gas reciprocating units (GRU) for the production of two types of energy – electric and thermal. Such installations can run on the natural gas and other types of fuel. The drawback of existing installations is that they are mainly produced abroad or consist of the foreign components. As an alternative, we offer new technical solutions, which were developed and patented in the Russian Federation. What makes these solutions original is that asynchronous generators in the installations are used with various control schemes
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ENERGY-LOADING OF DISKS IN “DISC-PAD” FRICTION PAIRS OF BRAKING DEVICES IN VEHICLES (part one)
DescriptionWe’ve illustrated assessment of energy-loading of disk-pad brakes of the bus A172 in the preliminary stages of tests type I and II according to regulated standards of UNECE and we’ve established regularities of heat exchange processes in the interaction surfaces of solid and self-ventilated brake discs with high-speed currents of washing air
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ENERGY-LOADING OF DISKS IN FRICTION PAIRS OF “DISC-PAD” OF BRAKING DEVICES IN VEHICLES (part two)
DescriptionIn the materials of the article we mention the regularities of changes in the volume and surface solid temperature gradients and self-ventilated brake discs and illustrate their impact on the main operating parameters of the friction pairs of disk-to-pad brakes of the A 172 bus; the relationship between thermo-physical parameters of polished and matte surfaces with areas of brake discs of various types. The influence of the type of tests on the pairs of loaded with energy friction disk and pad brakes of the vehicle. We have set the intensity of heat exchange processes from the surfaces of the brake discs of various types. It is shown that this leads to increased surface temperature gradient. The volume and the surface temperature gradients of the brake discs were determined with the involvement of the hypothesis of summation of temperatures on the surface when you post the generated electric currents. It was found that in the surface layer of the working surface of a solid brake disc at its pulse heating under the influence of the temperature of the flash nucleate cracks due to the thermal fatigue of the material of the disk. The features of the design of the brake discs were considered as well. On the basis of the calculation and the experimental data we have shown a correlation between the emissivity of brushed and polished surfaces and their areas in the disk-to-pad brakes when using solid and self-ventilated discs
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ENERGY PERFORMANCE OF MACHINES FOR SOIL CULTIVATION
DescriptionCurrently a significant proportion of the cost of agricultural production is energy costs. Therefore, considerable attention is paid to energy and resource saving equipment and technology. In this regard, the role and importance of the energy assessment of machines, allowing determining not only the power characteristics of the power, but fuel consumption per unit of cultivated area or per unit of output. Conducting energy assessment of machines and equipment reduces the economic and labor costs, at the expense of more detailed and optimal selection of machines and units for performing certain manufacturing operations in agricultural production. In the article we describe energy evaluation of different tillage agricultural machinery aimed at determining energy consumption when executing the set of technological operations machines and equipment on the operation modes set by the standards under which stable the operations are performed. The use of the results of energy assessments on traction characteristics of agricultural machines and tractors will allow getting the maximum effect when performing technological operations. In turn, the lack of monitoring of key energy performance of cars during their operation leads to a partial use, which increases costs
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ENERGY SUPPLY SYSTEM OF THE TERRITORIAL AGRICULTURAL AND SILVICULTURAL BIO-ENERGY SECTOR
DescriptionThe article describes the characteristics of the organization of energy supply of the territorial agricultural and silvicultural bioenergy sector. It also presents the technical solutions of energy systems that improve fuel efficiency and intended for the utilization of biomass
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ELEMENTS OF CONTROL OVER HIERARCHIE SYSTEMS WITH ASSUMED HIERARCHY
DescriptionThe article presents a mathematical model of control over dynamic hierarchy system. The model was proposed for dealing with systems with assumed order in the technical problem of predicting destructions depending onto the amount of defects on different scale levels. The problem of the closest to a certain point of shelf life of hierarchy system is solved. The example of approach control during the given time is given. The problem concerns mathematic programming. Formulation of multi-parameter vector optimization criteria (improvement) with its own hierarchy and the formal exercise of multi-criteria optimization of the model parameters. The research can achieve clarity about the conditions under which the structure is preserved. Managing sustainable development system with a given level of the hierarchy for the technical systems can only be achieved in keeping
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ELECTROCHEMICAL THERMODYNAMICS OF CELLS IN THE CONDITIONS OF ELECTROMAGNETIC ENVIRONMENT
DescriptionThe article covers the basics of thermodynamics and the possibility of the application of its provisions to the basic biological entity - the cell under the influence of external electromagnetic fields. Thus, we consider a system whose properties do not change in time, if it does not occur on the external influences. If the system is subjected to such (mechanical, thermal, electrical, magnetic and other effects), then all its properties, or some of them are changing. If at least one property of the system changes, we will talk about changing the status of the system due to the fact that there was some process. From the point of view of external electromagnetic fields on the thermodynamic system - a cell of a living organism or plant is very important essence of the concept of work. Unlike conventional concepts of the work of expansion (pdV), which is not considered to be useful, we have introduced the concept of "useful" work dA /, which means the operation of the electric current, magnetic field or other physical fields in the design of various electrical devices and appliances used in livestock and crop. The impact of electromagnetic fields on biological objects also leads to a slight increase in temperature of the biological system and, as a consequence, it increases the rate of chemical and biochemical reactions and phase transitions, which is reflected in the increased activity of the biochemical processes in these objects. This, to some extent can explain numerous experimental results of scholars and practitioners concerned with stimulating crops, for example, during preplant treatments