№ 131(7), September, 2017
Public date: 29.09.2017
Archive of journal: Articles count 124, 307 kb
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MATHEMATICAL AND INSTRUMENTAL SUPPORT OF A POST-GRADUATE EDUCATIONAL PROCESS
DescriptionEducation was always an important part of the development of the individual and society, because education is the process of the formation of mind and character. Each level of education currently requires increased attention, since the quality of life of future graduates directly depends on the quality of the provision of educational services. Despite the fact that most of the educational process is formalized by educational standards, regulatory documents and local acts of educational institutions, this area continues to need both automation and the development of various models, methods and techniques, the use of which will greatly optimize the implementation of the educational process. There are few software products, models and methods that assess the quality of education and the educational process in general, aimed at individual elements of the educational system. In all the existing, basically, there is only support for working with bachelors, slightly less often with masters and very rarely with graduate students. This article describes methodological approaches to assessing the achievements of graduate students, as well as an information system for supporting the educational process of graduate school
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THE EFFECT OF PERLITE USING ON QUANTITATIVE AND QUALITATIVE INDICATOR OF SEED GROWTH
06.00.00 Agricultural sciences
DescriptionAn experiment has been carried out on the effect of germination of seeds with perlite on the improvement of the growth force of rye Vyatka-2. The purpose of the experiment was to study the effect of perlite on the growth force of seeds under the conditions of additional fertilizers and changing the volume water during irrigation. The task of the work was to determinate the growth force of seeds with perlite. The growth force of the seeds was determined after 10 days in sprouted seeds in five samples in glass vessels with three different moisture conditions. It was proved that germination of seeds with perlite increased the seed growth force up to 28% in comparison with seeds grown in sand (a control sample). The result also depended on decreasing of humidity rate up to 30-40%
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06.00.00 Agricultural sciences
DescriptionIn the conditions of middle valley of the Lena River on the cryogenic, inundated, cespitose and chernozemic soils different steppe communities differently react on dietary regime. Herb-grass phytocenosis at organic dietary regime is reformed in cereal phytocenosis with the contents of cereals to 76% and bean types 19% of dry basis with productivity to 20 centner of hectare of dry basis. At the same time the efficiency of the improved phytocenosis was on charge exchange energy of 17,3 mega joule of hectare, feed units 1032 and a crude protein of 247 kilo of hectare. The whetgrasses phytocenosis has provided productivity to 19,4 centner of hectare and the content of perevarimy protein in 1 feed unit up to 118 gram. So the most effective for the steppe meadows is using complex fertilizer (humus of 20 tons of hectare + N60P60K60), increasing the productivity twice with a high quality of food
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06.00.00 Agricultural sciences
DescriptionIn peach orchards of the Russian humid subtropics, leaf curl is the most dangerous and harmful disease. Due to the high degree of danger from the peach leaf curl, for the first time in this region the main task was to analyze peach leaf curl development on weather conditions. In order to solve the problem, it is proposed to apply a new innovative intellectual technology: automated system-cognitive analysis (ASK-analysis) and its software tools - the “Eidos” system. In order to build the model, based on our own observations and the experience of Russian and foreign colleagues, it was decided to use the following factors: the sum of temperatures above +4 ° C of the current year (for the period from January to April), the sum of temperatures above +4 ° C of the previous year (for the whole year), the sum of precipitation of the current year (for the period from January to April), the sum of precipitation of the previous year (for the whole year), the number of hours of infection (in the current year). It was established that such factors as the number of hours of infection, the sum of temperatures above +4 ° C in April and during the period from January to April, as well as the sum of precipitation in March and April, are the most important in the dynamics of peach leaf curl development and spread. High rates of leaf curl spread and development are caused by the number of hours of infection in the range of 1440 ... 2064 hours, as well as by low air temperatures in March and April (the sum of temperatures above +4 °C – 89,4-240,4° and 283,7-316,7°, respectively) and high air temperatures - in January and February (the sum of temperatures above +4 ° C – 155,3-259,6° and 243,5-280,1°, respectively)
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PEDAGOGICAL MODEL AS A TOOL FOR IMPROVING QUALITY OF TRAINING OF STUDENTS-DESIGNERS
DescriptionThe article discusses the problem of improving the quality of vocational education. The pedagogical model of the formation of professional competences of the students-designers is proposed as a way of effective training of specialists in the field of design. The principle of composite is the basis for the formation of the pedagogical model. The modular program is the mechanism of implementation of the pedagogical model. The structure of the pedagogical model includes next blocks: the semantic, the contentorganizational and the evaluation-productive. The result of the application of the pedagogical model is the formation of the professional competencies of future specialists in the field of design, which correlates with the competence context in the system of higher education
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ADJUSTMENT OF THE ENTERPRISE’S IMITATION MODEL FOR THE ANALYSIS OF ECONOMIC ACTIVITY OF SMALL FIRMS
DescriptionThe article presents a simulation modeling method which is applied to the development analysis of the microeconomic objects. Examination of the classical version of the simulation dynamic model E (Enterprise) intended for research of monoproduct enterprises with unchanged technology is conducted; the possibilities of its adaptation for small business objects and modifications to the imitation model of a small enterprise (IMSE) are proved. The dendrogram of the complex of possible IMSE modifications formed on the basis of the E model is presented, which allows describing the activity of small firms of different profiles and solving a wide range of tasks of their strategic planning and management. The proposed dendrogram is a conceptual framework for imitating modeling of small business objects
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SOURCES OF ELECTRICAL ENERGY OF AIRCRAFT ELECTRIC POWER SUPPLY SYSTEMS: CONDITION AND PERSPECTIVES
DescriptionAccording to its operating principles, generators of aircraft electric power supply systems do not differ from the similar generators of transporting and stationary systems, but have range of peculiarities: low weight and dimensions, high density of armature current, compulsory cooling (air and liquid), high frequency of rotor spinning. The article considers main requirements, imposed to generators of flight vehicle and the construction peculiarities and main physical and operational characteristics of generators applied in modern flight vehicles. It is suggested to use noncontact electrical machines as sources of electrical energy in the aircraft electric power supply systems: synchronous generators with impulses from permanent magnets and asynchronous generators with capacitive impulse. To improve physical and operational characteristics of generators and aircraft electric power supply systems it is suggested to refuse from permanent frequency spinning drivers which have low converters as stabilizer of voltage and frequency current of electrical energy source. The peculiarities of its operation are considered, its advantages and disadvantages. It is possible to improve characteristics of aircraft electric power supply systems by means of study of the electromagnetic compatibility of the main functional system elements and by means of application of non-contact electrical devices, applied in the guard and control systems, made on the basis of power and electronic devices
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Description
The article formulates and solves the task of discrete control in the thermophilic stage of the composting process. It is shown that considering the relay control entity to maintain specified process conditions requires the organization of the sliding mode. We have solved the problem of minimizing the temperature deviation of the substrate from the set values and the deviation of the oxygen concentration in the gas phase of the bioreactor from the specified values. The article shows the algorithm to compute the discrete control of the composting process in the thermophilic stage. This work was prepared in the framework of the scientific project 16-48-230441 a(R) "Mathematical modeling of the processes occurring in the automated installation for year-round production of organic fertilizers in the conditions of the Krasnodar region", financed by RFBR and the administration of the Krasnodar region
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SOLUTION OF THE OPTIMIZATION PROBLEM FOR ELASTIC-DAMPING MECHANISM PARAMETERS IN PLOWING MODE
DescriptionThe article is devoted to finding of the optimum parameters for elastically damping mechanism (EDM) which is located in transmission of machine-tractor unit (MTU). The investigated MTU is based on the tractor of 1.4 class in plowing mode. EDM is designed for MTU in order to make its’ start smoothly, to reduce the dynamic load in transmission, to protect engine from the external load vibration. The “transmittance level” (index T) is used as evaluation of the protective mechanism quality. The study was carried out by means of the experiment planning method, viz. the central composition plan of second order with five factors. A regression model for response function (“transmittance level”) is given. This model takes into account the chosen EDM characteristics. The statistical analysis methods (Student’s t-test, Fisher’s test) were used to study the regression model. The dependence of response function on each factor apart, their cross impact on the process are described. The system of partial differential equations is obtained to find the optimal values of parameters and response function. The optimal value of a “transmittance level” can be obtained by varying different EDM parameter values. Optimal values of parameters and as result - response function - allow improving of MTU functioning in plowing mode
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Description
In this article, the issue of accounting for direct costs as part of the cost of construction works and services are considered, a characteristic is given to each of the methods presented in the work, and calculations are made on the basis of accounting data at LLC MontazhTechStroy. In the course of the analysis, positive and negative features of methods for writing off materially production costs within the research organization were revealed, conclusions were drawn in accordance with which proposals were made to rationalize the management accounting of the economic entity with respect to methods for writing off direct costs for the cost of finished goods (works, services)