Volga State University of Technology
Author list of organization
List of articles written by the authors of the organization
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THEORETICAL RESEARCH OF AN ENERGYSUPPLYING COMPLEX FOR APIARY BASED ON HYBRID SOLAR PLANT
DescriptionIn the article, we present a simulation mathematical model of an energy-supplying complex of apiary based on hybrid solar plant that establishes the relationship between the design and the operating parameters of the complex with when having conducive winter maintenance of bees. Modeling methodology involves the selection into a mathematical model of multiple levels: level of processes, that directly related with changing of climate parameters inside the hive depending on external factors, level of processes of functioning of the individual components in the complex, which are not directly connected with the processes of changing of climate parameters inside the hive, however, are necessary to ensure favorable conditions for wintering of bees. We have conducted the simulation of the complex based on hybrid solar plant for conditions: the location of apiary in the Republic of Mari El (building for placement of bees for 250 bee colonies, the number of photovoltaic modules – 10, wind power plant area – 18 m2 , the capacity of the battery – 50 A·h, the heat accumulator capacity – 3 m3 , the time interval – from 14 October to 14 April). As a result of simulation obtained graphs of the changing the thermal battery coolant temperature, the voltage at the battery terminals, the power wind turbine and PV modules, the electrical energy consumption
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THEORETICAL RESEARCH OF ENERGY SUPPLYING SYSTEM OF APIARY BASED ON COMBINED SOLAR PLANT
DescriptionWe have presented a simulation mathematical model of a complex for climate control of beehives that establishes the relationship between the performance parameters of the complex and efficiency parameters with a condition of descent winter maintenance of bees
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Description
This article presents the variant of the implementation of a system for heating supplying of buildings for placement of bees based on catalytic devices for burning biogenic fuels, as well as it offers a general idealized model of quantifying the effectiveness of technical-technological system
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TECHNICAL SOLUTIONS OF AN ENERGY SUPPLYING COMPLEX OF APIARY BASED ON A SOLAR PLANT
DescriptionWe have presented technical solutions of an energy supplying complex of apiary based on a solar plant, which ensure its functioning in the winter. Various aspects of the influence of the snow cover on the functioning of the complex are considered in the article. The favorable effect of the snow cover includes increasing the diffuse insolation, improving the thermal insulation of the building for placement of bees, which protects bee families from fluctuating external temperature. The negative effect of the snow cover includes adherence of snow to the receiving surfaces of solar energy converters, which can lead to decreasing the efficiency of using of photovoltaic modules and solar collectors. Both active and passive methods of combating snow sticking are suggested in article. Passive methods include installation of solar energy converters at an angle close to 90°, as well as their placement on the windward side. The simulation of the functioning of the complex based on a solar plant was conducted for climatic conditions of the Republic of Mari El (the time interval – from 14 October to 14 April, a photovoltaic module area – 1,3 m 2 with installation angles of 72˚ and 88˚). Because of the simulation, we obtained graphs of the changing the power of the photovoltaic module. Active methods include air injection onto the receiving surfaces of solar energy converters and using of heating elements
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Description
The article provides a description of existing catalytic burning units, the rationale for improving the technical solutions of components and parts, and the catalytic burning unit proposed by the authors with a circulating bed of filler
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COMMODITY TABLES FOR ESTIMATION OF ARTIFICIAL ORIGIN OAK FORESTS IN THE LOWER VOLGA REGION
06.00.00 Agricultural sciences
DescriptionThe article proposes a system of regression equations to estimate the parameters of the normal probability distribution of the number of trunk diameters in stands of oak plantations of Lower Volga. Commodity tables for estimation of forest stands are developed
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RISK MANAGEMENT IN WOODWORKING
DescriptionThe article deals with urgent questions concerning activities of woodworking industries, which face tough economic situation. Nevertheless, these enterprises reveal a definite growth of output in some kinds of products, such as fuel pellets, window units, special timber assortments, etc. The problems about possible risks connected with equipment handling were identified, which has physical and intellectual wear, as most of it has been operating since 1980. On the basis of accomplished investigations of normative and technical sources the documents were specified, which establish safety regulations for operating equipment and requirements for risk assessment techniques. The necessity of their improvement is also determined. Taking into consideration peculiarities of management of woodworking production process, the analysis was carried out in order to estimate the factors, which influence the quality of mechanical treatment by the method of 5M. Following the observations and processing of statistical data it was established that equipment and personnel show the greatest impact on the quality of half-finished and final products. Risks evaluation method for woodworking industries is suggested with due account for equipment safety parameters, which includes determination of consequences, risk probability, risk level on scale factored “high”, “medium” and “low”. Much attention is paid to the items composed: rank matrix of two-factor model, with calculations of numerical values of risks, as product probability of occurrence and severity of consequences, and risk log. Three zones were appointed with the following risk levels: the first zone with weighting factor not less than 6, the second zone: 8-16, the third: 20-25. In course of investigation, it was detected that the highest risk factor, connected with equipment operation, is probability of mechanical injuries of hands and most possible – getting cuts. The flow chart of risks management during the woodworking production process is offered in accordance with all Union State Standard regulations R ISO 9001-2015 and GOST R ISO/MAC 31010-2011. The developed algorithm provides accomplishing performance of work on risks management in more available and short form with presentation of processing operations, actual doers, kinds of required normative documents and papers worked out within the enterprise
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PHILOSOPHICAL REASONING OF THE CONCEPT OF THE GAME AND ITS USAGE IN NON-PLAYING CONTEXT
DescriptionIt is interesting for interdisciplinary understanding of game phenomena, how the concept of the game discourse can operate in different non-playing contexts. Researching of game concept allows tracing the figurative conceptualization knowledge of this universal phenomenon. The author uses a lot of examples to prove that game phenomenon represents itself in a language and has been reflected in the mind of people. It is shown, that lingvo-culturological concept of the game has more productive metaphorical rethinking. We single out the most important characteristics of game, explain some imaginations about gaming, explicate dominant sense of game freedom, its choice, imitation, dynamic and emotional stress, agonistic, risk, unpredictability and others attribute the symptoms. Represented contexts of usage also illustrate communicative and social components of gaming behavior. Dominant meanings, key ideas, that unite viewed image, actualize basic principles that are typical for the game phenomenon in common, and the specific characteristics of different types of games (sport, children, gambling, theater, computer, etc.)
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PHYTOINDICATION IN THE QUALITY CONTROL OF WATER BODIES
DescriptionHuman-induced disturbance on water objects was appraised with chemo and biological methods, the results of which are turned out to be comparable
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FORMATION OF MICROBE-PLANT CONSORTIUMS OF THE RHIZOSPHERE IN ONTOGENESIS OF GRAIN CROPS
06.00.00 Agricultural sciences
DescriptionThe microbiological composition of the rhizosphere of the soft wheat (Triticum aestivum L.), the two-row barley (Hordeum distichon L.) and the sowing oats (Avena sativa) was studied. It is shown, that the total number of the rhizosphere microorganisms changes during the plant growth and development. The specificity of the microbial composition of the three studied cereal crops has been observed