Kuban State Technological University
Author list of organization
List of articles written by the authors of the organization
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Description
The article discusses the relevance of the development of a mathematical model of threats and an intruder model which has been expressed in formalization of the process of finding vulnerabilities in information systems data at all stages of interaction between users and web-based applications, starting from user authentication procedures
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About fragile fracture of solids in the formation of a "narrow" isolated defect
01.00.00 Physical-mathematical sciences
DescriptionWe obtain a macroscopic criterion of fragile fracture (limit curve) when creating an isolated defect in the form of “narrow” undercut, when conformal mapping of the exterior of a unit circle on the plane with de-effect in the form of a recess defined by cut fiber-foam series. It is shown that in this case, the limit curve has the form identical to the case when the defect is set to "narrow" ellipse. The same crack oriented along either the compressive stress or tensile perpendicular stress. From here, we can suggest that the shape and geometric properties of a sufficiently "narrow" defect do not affect the values of the critical loads required to start its distribution
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Description
There are two different complete sets of replaceable gears bracket of metal-cutting machine tools in the article. One is delivered together with the 5К32 machine tool, another is received on the basis of work of the author. The samples made of these complete sets, are checked by the plate-measuring machine. Diagram of measurements and comparative tables are presented
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Description
This article is devoted to solving the critical task of improving the reliability of the power systems for agricultural processing plants. The article’s material is exploratory in nature, reflected in the fact that the proposed mathematical models for the analysis of groups of high-voltage induction motors will allow to investigate various modes of symmetric groups of asynchronous motors more effectively. We present the analysis of the existing mathematical models of induction motors considering the design features of such machines that directly affect the dependence of resistance and inductance on the rotor current frequency. The assumptions taken into consideration to obtain a more accurate mathematical model of the induction motor are also formulated. The article provides a comparison of different reference frames used in the mathematical modeling of asynchronous motors. It is proved that the use of the generalized coordinate vector for mathematical modeling of asynchronous motors is the most optimal approach. The equivalent circuit of asynchronous deep-bar motor in generalized vector coordinates derived in the work is used for analysis of transient behavior as well as the steady state operation. The results of the study are suitable for transient analysis of electrical power supply systems of agricultural enterprises with large number of high-power electric motors, for example, CHP of sugar processing plants and grain elevators
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Description
In the article we have determined the dependence of the extreme mass of the counterweight from me-chanical drive parameters and chart movement of the executive body
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REGRESSION ANALYSIS TO PREDICT THE AMOUNT OF WORK WHEN REPAIRING ROADS
DescriptionThe article is an example of planning funds for the maintenance and repair of roads in the asphalt performance given their excessive wear during winter
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EFFECT OF ELECTROMAGNETIC FIELD LOW FREQUENCIES IN THE TECHNOLOGY OF DRYING MANGOES AND PAPAYAS
DescriptionThe intensity of drying process depends on the speed of movement of the moisture inside the object and the speed of its removal from the surface. To accelerate the drying process, temperature gradient is often regulated, which causes large power consumption. Currently, they are different methods in used for intensifying the process of drying of plant material which are physical, mechanical, chemical and electrical method. Data of literature review show a lack of data on the impact of synergies of lower frequency on the efficiency of drying plant material. Accelerating the drying process of fruit can be achieved by combining low – temperature of drying with a synergistic lower frequency of electromagnetic field. The results of the studies on the development of technologies to accelerate the drying process of mango and papaya fruit are presented in this article. The role of the electromagnetic field, on the intensification of the drying process and on the inhibition of the microflora of mango and papaya, during drying is studied. Effect of the synergistic electromagnetic fields of different frequencies leading to the death of microorganisms, as well as the drying rate of mango and papaya fruit is analyzed. The optimal technological parameters of low frequency electromagnetic field on drying of mango and papaya fruit are determined. Biochemical changes of mango and papaya fruit during drying are given. Technological parameters of the powder mango and papaya obtained by combining low temperature treatment with the synergy of low frequencies are described
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Description
The article shows that for the essential oil industry of the Russian Federation to solve the problems of import substitution it is urgent to develop effective technology to extract fatty oil from the crushed and deprived of ether by water vapor coriander fruits. The existing technologies for obtaining fatty oils from deprived of ether coriander were considered. It is shown, that at small-scale enterprises it is most advisable to remove fatty oil by screw pressing. A brief analysis of main factors affecting the completeness of oil extraction in screw presses was carried out. The conclusion about the necessity of preparation of deprived of ether coriander for extraction with the purpose of increasing the yield of fatty oil was made. It is shown, that one of the stages of such preparation is the removal of part of the shell from deprived of ether coriander, which also increases the nutritional value of the oilcake. Fractional composition of deprived of ether coriander after extraction of essential oil by water vapour and drying was investigated by sieve analysis method. On the basis of obtained data, prior to separating the shell by pneumatic separation, it is recommended to separate deprived of ether coriander into three fractions by size – coarse (riddling from the sieve with the diameter of 1.8 mm), medium (riddling from the sieve with the diameter of 1 mm) and fine (undersize from a sieve with a diameter of 1 mm). Component composition of the coarse fraction of deprived of ether coriander was studied. It was found, that the content of the shell in this fraction is 36%, which indicates the possibility of its effective separation by pneumatic separation
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THE STANDARDIZATION OF TERMS IN THE FIELD OF NANOTECHNOLOGIES (PART 2)
DescriptionThe article describes the existing standards and draft standards for the terms in the field of nanotechnology. The generalization of specific terminology in the field of nanotechnology, the terms used to define the nanostructures, carbon nanomaterials, nanostructured materials have been presented
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22.00.00 Sociological sciences
DescriptionThe authors characterize the modern condition of Russian rural territories. The most important federal target programs of development of the agro-industrial complex (AIC) are mentioned. Special attention is paid to studying the student’s youth as the main social resource of rural territories development. Based on empirical date we present an analysis of economic and social situation, vital plans and strategies of rural youth of Kuban. We have also carried out the analysis of respondent’s views of the rural territories actual problems and the measures aimed at the development of AIC