05.00.00 Technical science
-
DEVELOPMENT OF NEW DESIGNS OF MAGNETIC MECHANICAL INDUCTION MOTORS AND METHODS OF MANUFACTURING
DescriptionBased on the analysis of domestic and foreign scientific and patent literature, options for reducing the weight of electro technical steel in the magnetic circuits of electrical machines are explored. We have carried out a search for the best options of technology for the manufacture of magnetic cores of the stators of induction motors, aimed at increasing the utilization factor of electrical steel and improving the energy performance of electric machines. All options are described in detail and illustrated by drawings. We have listed the advantages and disadvantages of each method of manufacturing magneto-wires and the reasons why certain proposals of manufacturing technology cores have not been implemented in mass production. A variant of technology of manufacture of annular magnetic cores for mechanical induction electric motors is offered. The essence of mechanical design is to replace the laminated stator and rotor twisted from a strip of electrical steel, wound in the form of a ring with the simultaneous breaking-hell grooves with variable pitch under the stator windings and squirrel cage of the rotor coils. The effectiveness of the use of volute stator in mechanical electrical machines is confirmed in frequent controlled asynchronous torsion engine when tested pilot batch of the mechanical single-phase asynchronous motors for washing machines. This technology almost completely eliminates the problem of technological wastes of electro-technical steel regardless of the form of the stator bore (cylindrical, conical, flat end or flat line); it allows fully automate the manufacture of magnetic cores, greatly simplifies the stamps, makes them more durable
-
PERFECTION OF CLEARING OF WATERS FROM PETROLEUM TECHNOLOGY
DescriptionNowadays there are sorbents, both natural, and modified, which allow to clear waters from variety of pollutants simultaneously, for example from ions of heavy metals and petroleum. We have received a new modified sorbent with use of a sol-method. The given sorbent represents beads in common besieged magnesium hydroxide and aluminum having layered structure. For the characteristic of the structure of the researched systems we have carried out an X-ray analysis. Studying the mechanism of interaction of the sorbent with ions of heavy metals was carried out with the use of the research of chemical structure of the sorbent and the condition of adsorbed ions by methods of IR spectroscopy and X-ray analysis. The conclusion was made, that modified inorganic sorbent on a basis of magnesium hydroxide and aluminum has a number of distinctive features and advantages comparing to other filtering materials
-
SAFE OPERATION OF INDUSTRIAL THERMAL AGGREGATES
DescriptionThe article is devoted to ensuring safe operation of industrial thermal aggregates of low power. The problem of ensuring trouble-free operation of power stations on the channel of control of a flame is considered. The main attention is paid to the requirement of speed of control of a flame. The reasonable method of calculation of the lower temporary parameter of operation of system of automatic protection on the researched channel is for this purpose given. At the same time, parameters of fuel-air mix of gases in furnace amount, design features of the furnace aggregate, thermal losses which accompany explosion in a fire chamber of the power station are considered
-
ENGINEERING METHODOLOGY FOR JUSTIFICATION OF RESOURCE-SAVING SUPPLY OF PARTS FROM SCRAPPED UNITS
DescriptionThis article discusses a method of improving the reliability and efficiency of technological systems of grain harvesting by creating a resource-efficient stock of parts from scrapped units. We consider the theoretical background to the calculation of resourcesaving supply of parts and components from recycled aggregates. The four conditions under which the multinomial distribution law c a sufficient degree of accuracy is reduced to other mathematical models. To assess a working hypothesis, a study was conducted of the accumulated frequencies of the ratio of change of the COP predominant item of consumable spare parts (HRA) to 9880i combine harvesters SNS (John Deere), CR-9060 (New Holland) and RSM-181 "Torum-740". To check the working hypothesis we also studied data on the failure of structural elements Lexion 580 combine harvesters in operation in the farms of the Krasnodar region
-
PRINCIPLES OF DEVELOPMENT OF APPLICATIONS FOR IOS OPERATING SYSTEM
DescriptionThe article presents the principles of the development of mobile applications for the operating system called iOS. Details were considered for popular patterns and their features
-
NEW SCIENTOMETRIC INDICATORS RESISTANT TO ARTIFICIAL “IMPROVEMENT”
DescriptionThe article presents the new criteria suitable for the diagnosis of the productivity of research and the importance of its results for the scientific community, are resistant to artificially "improve". It is known that generally accepted measure of the productivity of research scientists is the h-index, which is calculated based on a statistical method of scree. This indicator is applicable to research teams (organizations). However, the h-index and a number of other scientometric indicators based on citation, are easy to be artificially increased (fraudulent schemes action). New scientometric parameters adequately reflecting the importance of research results, and not amenable (or very difficult to) to be artificially "improved" are therefore needed; moreover, it is recognized around the world: the true score (not fictitious) of the significance of the results of a research scientist for the scientific community - is a complex metrological (scientometric) task. The authors argued that such indicators are primarily index latitude demand for research results, as well as a number of other parameters of copyright. Despite the fact that authors indicators, the same as the h-index are based on citation, their large values indicate that the scientific community recognizes the results of the research activities of scientific and pedagogical workers; moreover, these indicators can be considered as a criterion to identify really promising (productive) researchers. The problem of adequate assessment of the productivity of research activities and the significance of its results, the authors consider in the context of the problems (larger problems) of the effectiveness of educational environments. The practical significance of research results lies in the possibility of their use for constructing criteriondiagnostic apparatus for monitoring research activities of scientific institutions (including higher educational institutions). Research methodology: systemic, metasystemic, probabilistic-statistical and qualitative approaches. Research methods: cognitive, structural, functional, and mathematical modeling; methods of graph theory, sets and relations; system-cognitive analysis; methods of quality control (theory of latent variables); methods of probability theory and mathematical statistics (first of all – a method of scree), methods of analytical geometry; methods of the mathematical theory of limits
-
Description
The article presents a computer program, which define automobile transport demand for the transport service of harvesters in the grain harvesting process. The program has a simple and intuitive user interface, a flexible setting system. It allows to change the source data for needs everything agricultural companies. It doesn’t require an installation and it can function in everything operation systems, which is fitted for Microsoft office applications acting. It doesn’t require a special studying or deep knowing in a mathematical statistic for using. Everyone specialist can use the program in an agricultural enterprise. The program considers distribution laws of stochastic parts of the grain harvesting process. These process features are important to consider due to using of determination values give very rough results. If there are mistakes in the structure design of the harvesting-transport complex then there are nonproductive machines downtimes or the harvest losing. Using the program gives better organization of the transport service in the grain harvesting process, and it can give the economical effect. It is especially important in modern competitive conditions at the worldwide market of agricultural products and also at the interior market with consideration of external economical sanctions and with consideration of the declared import replacement course. The successful work of agricultural enterprises defines the country's food security and it turns down the oil dependency of the Russian economy
-
THE STUDY OF THE EFFECTS OF RICE QUALITY ON THE EFFICIENCY OF ITS PROCESSING
DescriptionThere were presented comparative analysis’ results of criteria rice quality used in Russian and international standards. Also there were shown summarized statistical analysis’ results of rice quality that was processed in 2013-2016 on rice mill plant at “Krasnodarzernoprodukt” Company. The purpose of research was to find factors that had influence on combining rice bulk effectiveness on specialized elevator. It was found that diapason of rice moisture content was quite small. Red rice content was ranging from 1.08 to 5.10 % with confidence interval of 1.98- 2.56 % that is evidence of small amounts of rice bulks with extreme high or low red rice content. Broken rice content varied in the wide range from 3.43 to 9.26 % with confidence interval from 5.84 to 7.26 % that shows necessity in length grading procedure applying for broken kernels removing at the elevator unit. Grain impurities content exceeded basic norm in 3-4 times that is a sign of low efficiency in the process of separation. During the treatment of rice bulks combined at the grain cleaning unit of rice plant broken rice cereals output varied in wide range from 3 to 9 % during single shift that is seems to be connected with kernels cracking increasing and rice moisture decreasing. Moreover, rice bran output also varied in a wide diapason from 10.2 to 17.0 % that could be explained by big swing in rice moisture, glassy texture and cracking of rice grains. According to our research it was investigated that current rice quality control system that is a base instrument of rice bulks forming for further processing is not quite efficient and as a result there should be created and implemented new methods and technical devices for quick and proper grain control that could assure stable technological regimes at different stages of rice treatment process and that would provide the best quality and the biggest output of rice cereals
-
PROSPECTS OF RECEIVING AND USING LIGHT WATER
DescriptionIt has long been known that mountain glacier water has special properties. It was found that such water contains fewer molecules with the heavy isotope of hydrogen - deuterium. On Earth, there are constant evaporation-condensation processes. The resulting protium water falls as rain. It is noted that the body of animals, as well as tropical fruits and vegetables containing water with an isotopic composition close to the composition of rainwater into these areas. When the nuclear industry began to produce heavy water, a byproduct of the production was the light water, which had a lower content of deuterium. Over a lifetime, a person drinks about 80 tons of water. As a result, the body receives 12-16 g deuterium and associated oxygen isotope 18O. This leads to damage to the genes, premature aging and the development of cancer. Numerous studies have identified a positive impact of light water on the growth of plants and living organisms. The biological effects of light water include the ability to optimize the biological reaction rate, the stimulation of cell division, radioprotective properties and antimutagenic effect. In Russia and abroad patented several methods and devices for producing light water, with severe medical and cosmetic properties. This water has become popular among the population. It has a higher value in comparison with typical drinking water. The article describes one of such units. In order to achieve its goals there occurs treatment of drinking water and low electromagnetic field is extremely low frequency. This plant is used to produce food protium water in the laboratory. It allows you to clean tap water from the deuterium content of tritium, salts and contaminants
-
USE OF TERMS “ASU” AND “IS” IN AGRICULTURE FROM THE POINT OF VIEW OF INFORMATICS
DescriptionThe article deals with the issues of comparing the terms of ACS and IS with reference to automation in agriculture. In the technical literature, at conferences, in educational disciplines of higher education institutions, such terms as: information systems (IS), information technologies (IT), automated control systems (ACS) are often encountered. These terms are widely applied to the relevant objects in the subject areas under consideration. The area of coverage of the objects using these terms is very wide and in each case the definition of the applied term is either not specified at all considered self-explanatory, or the term is defined with various levels of detalization. In the latter case, the thoughtful researcher falls into some confusion or generally tries not to touch upon this question. In the article, on the basis of a review of known literary sources, it is shown which concepts are denoted by these terms when considering automation issues in agriculture. The subject of the study is the use of the terms IT, IS, ACS in works on automation in agriculture. The subject of the study is questions of comparison of the terms ACS and IS. The aim of the study is to indicate that automated IS is a more general concept than ACS