Abstract:The known methods of cleaning tanks from the remnants of petroleum products using existing means are quite time-consuming, energy-intensive, and insufficiently advanced. In addition, waste cleaning solutions are poorly regenerated and slowly oxidized in the biosphere, and their removal to landfills (or discharge into reservoirs) causes great harm to the environment. Therefore, the search for new methods of cleaning is a very urgent task. This work aims to develop a method for cleaning tanks from the residues o… Show more
“…It is recommended to determine the height of the ditcher based on the full height of the opened ditch N according to the following formula [3,4,5] (4)…”
The purpose of the research is to confirm the plurals of a furrow cutter with levelers of combination machine. Combined machine turns the soil layer of the zone where the root system of field crops develops by 180°, prepares the soil for planting, and forms an irrigation ditch. The combined machine consists of disc knives, reverse-cutting ploughshare housings, roller, thresher and levellers. The conducted theoretic and pilot explore showed height combined machine sweeper should be 0.45 m, length 0.7 m, the opening angle of the wings 30°, the height of the leveller 0.1 m, the installation angle relation to the area of activity motion should be 30° showed. According to the outcome the conducted experimentation analysis, tensile strength slimmer is line of 600-650 N.
“…It is recommended to determine the height of the ditcher based on the full height of the opened ditch N according to the following formula [3,4,5] (4)…”
The purpose of the research is to confirm the plurals of a furrow cutter with levelers of combination machine. Combined machine turns the soil layer of the zone where the root system of field crops develops by 180°, prepares the soil for planting, and forms an irrigation ditch. The combined machine consists of disc knives, reverse-cutting ploughshare housings, roller, thresher and levellers. The conducted theoretic and pilot explore showed height combined machine sweeper should be 0.45 m, length 0.7 m, the opening angle of the wings 30°, the height of the leveller 0.1 m, the installation angle relation to the area of activity motion should be 30° showed. According to the outcome the conducted experimentation analysis, tensile strength slimmer is line of 600-650 N.
“…One of the most important areas of modernization of the modern school is informatization. Currently, various authors point to the possibility and importance of using computer technology in teaching Natural Sciences, specialized conferences are being organized dedicated to the problems of computerization of Education [1][2][3][4][5][6]. The use of multimedia tools in teaching is considered the most promising, since multimedia allows you to use all information transmission channels in the learning process, maximizing all types of memory.…”
Improvement of school biological education is required at all levels of its organization. At the same time, the introduction of modern computer technologies into the learning process is of particular importance. One of the most natural and productive ways of introducing them into the educational system of the school is to directly link the learning process with the improvement of the content, methods and forms of teaching, orienting the entire program towards solving generally significant pedagogical problems. The article discusses the features of the use of modern computer technologies as one of the ways to increase the interest of schoolchildren in biology. The results of experimental work carried out on the basis of secondary school No 5 of the Nizhnekamsk region of the Republic of Tatarstan are presented. Based on the results of the analysis, conclusions were drawn about the effectiveness of the use of computer technologies in the educational process of the school.
“…In this regard, an urgent task is to analyze the variability of river waters in the basins of reservoirs and assess their quality by chemical composition [2]. The chemical composition of water in reservoirs is determined, to a greater extent, by natural factors, and in plains -by anthropogenic factors [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19].…”
The aim of the study was a comparative description and assessment of seasonal dynamics of organoleptic characteristics, salinity and chemical composition of the water of some reservoirs in Uzbekistan. It was found, that the organoleptic characteristics and parameters of salinity of Kattakurgan reservoir in the spring and summer were practically within the MPC. Indicators of chemical composition of water of Kattakurgan reservoirs were below the upper limit of the MPC. In water samples of Tuyamuyun reservoir organoleptic characteristics and parameters of salinity in summer was higher than the MPC. Indicators of the chemical composition of water in the summer were below the upper limits of the permissible level, reliable inter-seasonal differences noted on the content of chlorides and sulfates. Organoleptic characteristics and the degree of mineralization of water samples of Charvak reservoir were within the MPC. All parameters of the chemical composition of water of Charvak reservoir were lower relative to the upper border of the MPC, regardless of the place of sampling and the time of year. Keywords: reservoirs, water of reservoirs, chemical composition, salinity of water, organoleptic characteristics.
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