Experimental Approbation Research Articles

Modeling and Experimental Approbation of a Hardware and Software Complex for Determining the Impedance Parameters of an Amniotic Fluid

Modeling and Experimental Approbation of a Hardware and Software Complex for Determining the Impedance Parameters of an Amniotic Fluid

Joint activity in child-parent relations as a factor in the development of a younger student's personality: theoretical and experimental research

Introduction. Joint activity in child-parent relations contains a significant and poorly studied resource for the development of a younger student's personality. Unfavorable trends in the personal development of a younger student at the final stage of primary general education, such as a decrease in motivation for learning and self-esteem, increased anxiety, and social deficits significantly affect academic success, which determines the relevance and relevance of solving this problem. The purpose of the article is to present the results of scientific and theoretical substantiation and experimental approbation of the program of psychological and pedagogical support of joint activities in child-parent relations with a younger student as a factor in the development of his personality.Materials and Methods. The study involved 99 primary school students aged 10-11 years, studying in the fourth grade (50 boys and 49 girls), as well as their parents aged 29 to 53 years (80 mothers and 19 fathers). As diagnostic tools, the following methods were used: the method of studying educational motivation by M. V. Matyukhina (modification by N. C. Badmaeva); the method of assessing school motivation by N. G. Luskanova; the scale of personal anxiety by A. M. Parishioners (form "A"); the method of measuring self-esteem by T. V. Dembo and S. V. Rubinstein (modification by A. M. Parishioners); methodology of sociometry by J. Moreno (modification by V. R. Schmidt); questionnaire for studying the structure of subjectivity by E. N. Volkova and I. A. Seregina (modification by M. A. Pyzhyanova).Results. The article summarizes domestic and foreign studies on the problem of joint activity in child-parent relations as a factor in the development of a younger student's personality. The scientific and theoretical foundations, goals, objectives, content and stages of implementation, programs of psychological and pedagogical support for joint activities in child-parent relations with a younger student are determined. The results of the approbation of the author's program are obtained, indicating the optimization of the development of the main personal spheres of a younger student: motivational, emotional, spheres of self-awareness and subjectivity of personality.Discussion and Conclusions. As a result of the testing of the program, patterns of dynamics of indicators of the main personal spheres of a younger student in the conditions of psychological and pedagogical support of joint activities in child-parent relations with a younger student were revealed. The analysis made it possible to reveal the mechanisms of the influence of parental interaction in the process of positive joint activity with a child on the development of his personality.

A method for determining the spectral relaxation functions of polymers under single stretching of micro samples

The principles of designing products made of the latest complex-structured polymer composite materials necessitate the need to take into account the large-scale structural effects determined by processes at the supramolecular and molecular levels of the polymer: relaxation, kinetic (breaking and recombination of chemical bonds), recrystallization of supramolecular structures, etc. The development of these processes is described by relaxation functions, which, in turn, can be calculated using the functions of relaxation time spectra. The purpose of the work was to develop a specialized equipment for testing micro-samples with a variable working part for uniaxial stretching along with the experimental technique and computational algorithms for processing the obtained measurement data, and experimental approbation of the developed approach to determining spectral relaxation functions. A method is proposed for estimating relaxation functions not at fixed stress levels within linear elasticity, at secant points of deformation diagrams, at fixed values of the linear elasticity modulus, but within an extended range of the sample deformation up to pre-rupture states. A set of test equipment designed for tensile tests of micro-samples with a thickness of the working part of 0.2 – 1.2 mm has been developed. The tooling can be installed on modern high-precision breaking machines. Tensile tests of polyethylene terephthalate micro-samples with a thickness of 50 and 175 μm were carried out taking into account the scale factor. A tensile test of micro-samples that are technologically stabilized by paper frames of a special shape is described. Diagrams illustrating the kinetics of changes in the spectral relaxation functions of oriented polyethylene terephthalate (PET) are constructed proceeding from the data of testing micro-samples with a constant strain rate. A method for using these diagrams in calculations of empirical relaxation time spectra is described. The results of testing micro-samples of polyethylene terephthalate are presented. Illustrative deformation diagrams of the studied polymer samples and calculated diagrams of functions of relaxation time spectra calculated according to the described method are given.

USING A WIRELESS SENSOR NODE TO MEASURE THE ACCELERATION OF THE SWING ROCKING MACHINE NODES

Technical diagnosis of the drive of well rod pump units (WRPU) remains an urgent task, despite the significant amount of research in this field. One of the areas of diagnosis is the measurement and control of the angular velocity of the rocking machine elements, which requires the provision of synchronous registration and control of acceleration signals at many points of the control object. The authors proposed to implement such a system based on the wireless sensor module Steval-MKSBOX1V1 of STMicroelectronics. The results of the experimental approbation of the use of the specified module showed the effectiveness of its use for solving diagnostic tasks, since the module contains a significant set of sensors in combination with a unit for processing, storing and transmitting information via a wireless Bluetooth interface. An additional advantage of using the selected measuring module is the possibility of remote reprogramming of the module's software to perform the tasks of controlling the kinematic parameters of the installation in the process of conducting research directly at the technological facility. The use of three coordinate accelerometers as part of the measuring module allows to significantly increase the reliability of control in the diagnostic process.

3D polarization-interference holographic histology for wavelet-based differentiation of the polycrystalline component of biological tissues with different necrotic states. Forensic applications.

The interference-holographic method of phase scanning of fields of scattered laser radiation is proposed. The effectiveness of this method for the selection of variously dispersed components is demonstrated. This method made it possible to obtain polarization maps of biological tissues at a high level of depolarized background. The scale-selective analysis of such maps was used to determine necrotic changes in the optically anisotropic architectonics of biological tissues. Development and experimental approbation of layered phase polarimetry of repeatedly scattered fields in diffuse layers of biological tissues. Application of scale-selective processing of the found coordinate distributions of polarization states in various phase sections of object fields. Determination of criteria (markers) for histological differential diagnosis of the causes of necrotic changes in optical anisotropy of biological tissues. We used a synthesis of three instrumental and analytical methods. Polarization-interference registration of laser radiation scattered by a sample of biological tissue. Digital holographic reconstruction and layered phase scanning of distributions of complex amplitudes of the object field. Analytical determination of polarization maps of various phase cross-sections of repeatedly scattered radiation. Application of wavelet analysis of the distributions of polarization states in the phase plane of a single scattered component of an object field. Determination of criteria (markers) for differential diagnosis of necrotic changes in biological tissues with different morphological structure. Two cases are considered. The first case is the myocardium of those who died as a result of coronary heart disease and acute coronary insufficiency. The second case is lung tissue samples of deceased with bronchial asthma and fibrosis. A method of polarization-interference mapping of diffuse object fields of biological tissues has been developed and experimentally implemented. With the help of digital holographic reconstruction of the distributions of complex amplitudes, polarization maps in various phase sections of a diffuse object field are found. The wavelet analysis of azimuth and ellipticity distributions of polarization in the phase plane of a single scattered component of laser radiation is used. Scenarios for changing the amplitude of the wavelet coefficients for different scales of the scanning salt-like MHAT function are determined. Statistical moments of the first to fourth orders are determined for the distributions of the amplitudes of the wavelet coefficients of the azimuth maps and the ellipticity of polarization. As a result, diagnostic markers of necrotic changes in the myocardium and lung tissue were determined. The statistical criteria found are the basis for determining the accuracy of their differential diagnosis of various necrotic states of biological tissues. Necrotic changes caused by "coronary artery disease-acute coronary insufficiency" and "asthma-pulmonary fibrosis" were demonstrated by the method of wavelet differentiation with polarization interference with excellent accuracy.

EXPERIMENTAL WORK ON FORMING VOCAL AND PEDAGOGICAL COMPETENCIES OF STUDENTS OF PRESCHOOL FACULTY OF PEDAGOGICAL UNIVERSITY IN CHINA

The article deals with a relevant topic developed by the author in line with the reform of Chinese education, which covers all levels and spheres of the Chinese educational system, including preschool music education and professional training of future teachers of Chinese kindergartens for musical education and training of preschool children. The article focuses on the vocal and pedagogical training of students. It is stated that at present it does not meet the modern needs of practice, as future kindergarten teachers are taught mainly vocal skills and performance of classical vocal repertoire. The purpose of the article is to reveal the system of vocal and pedagogical competencies developed by the author, which should be formed in students, future kindergarten teachers, as well as the results of its experimental approbation in Jining Pedagogical University (China). The article substantiates the relevance of the topic, presents a brief review of literature and sources, gives a general characterization of the four types of vocal and pedagogical competencies proposed by the author. They include the ability and readiness of students to develop children’s singing voices using vocal and vocal-gaming exercises proposed by Russian and Chinese music teachers; to expressively and figuratively perform children’s songs provided for in the programs of preschool education in China; to learn songs with children, applying scientifically-based methods of work on the song repertoire; to accompany children’s singing on simple Chinese folk musical instruments. The author’s methodological system of forming these competences and the results of its experimental validation are also highlighted. The article also concludes that the application of this methodological system provides a high level of students’ formation of professional competencies necessary for their future professional vocal and pedagogical activity. The materials of the article can be used in scientific research and practice of teaching the course “Vocal" at preschool faculties of pedagogical universities not only in China, but also in Russia.

Simulation Modeling of the Process of Accident Risk Realization during Stripping Operations at an Open-Pit Coal Mine

Introduction. The need to increase the level of comprehensive safety, reduce accident and injury rates, minimize the risk of failures, accidents and catastrophes determines the relevance of research on the relationship of elements of the "human–machine–environment" (H–M–E) system during open-pit mining. One of the most effective mechanisms for studying the functional characteristics of the H–M–E system of a coal mine is to conduct simulation modeling in order to identify problematic situations that trigger accidents with catastrophic consequences and injury to personnel. Simulation modeling of a technological process involves constructing a model of a real system and setting up computational experiments to describe the behavior of the system and evaluate various strategies that ensure its functioning. The aim of the research was to adapt simulation modeling technologies to solve the problem of complex safety during open-pit mining. Within the framework of the study, the task was to determine the elements that made the greatest contribution to the implementation of risks in the H–M–E system during stripping operations at a coal mine. The simulated subsystems were "human", "machine", "environment", and "weather conditions". Materials and Methods. Stripping process was considered in the ARIS eEPC (extended Event Driven Process Chain) methodology as a business process linking a set of subprocesses and/or business operations. To build a simulation model in the AnyLogic software environment, the business process of stripping works in ARIS eEPC notation was described by a graph representing a structure consisting of objects and connections between them. This approach allowed us to structure the sequence of events and operations and determine alternative outcomes that arose during stripping operations. Results. As part of the research, a method was developed for translating the formal model of the stripping business process in ARIS eEPC notation into a combined simulation model of AnyLogic. Based on the developed method, a series of machine experiments was carried out. The elements influencing the realization of the risk of accidents in the H–M–E system of a coal mine were determined. Discussion and Conclusion. For the first time in the domestic practice of research of the H–M–E system, simulation modeling technologies have received an application for the analysis of complex safety indicators during open-pit mining. According to the simulation experiment results, it was found that the main influence on the decrease in the reliability of the "machine" subsystem was exerted by the human factor, which, together with the psychophysiological properties of a person, enhanced the development of the domino effect when implementing various types of risks. The presented results and experimental approbation of simulation modeling technology can have advanced use in the analysis of complex technical systems safety, taking into account the influence of human and man-made factors.

Моделирование процесса селективного лазерного плавления в аддитивном производстве

The possibilities of theoretical analysis based on numerical modeling of complex processes of additive manufacturing by selective laser melting method are viewed. Methods of high-precision modeling of the formation of a single melt bath are discussed, taking into account the geometry of the formed powder layer, the energy distribution in the spot, the effects of ray re-reflection, the vapor recoil force, the Marangoni effect and denudation mechanisms. Experimental studies on the cultivation of samples from BrX copper powder with particles of 20...50 microns in size by selective laser melting using continuous fiber laser radiation with a wavelength of 1.064 microns were carried out. In particular, all the experiments were carried out under conditions when growing conditions and modes are completely coincident with the calculated model. To assess the accuracy of the modeling system, the dimensions of the melting region and the morphology of the surface of the melt were compared. The presented computational model was used in the development of technology for growing products from copper alloy powders using selective laser melting method. Research in the field of modeling the stress-strain state in a composite material formed in the SLP process, consisting of an Ak9ch alloy matrix reinforced with titanium carbide particles, is also presented. Calculations were performed to identify the influence of shape (sphere, icosahedron, prism), size (1,0 microns; 5,0 microns; 10 microns) and mass concentration 
 (1,0 %; 3,0 %; 5,0 %; 7,0 %; 10 %; 15 %), taking into account the presence of pores of various shapes. The results of calculations are compared with the results of experiments. Numerical models with subsequent experimental approbation of the optimal variant make it possible to significantly reduce the time spent for the development of new complex and promising additive technologies.

Development of SDR-based network positioning technology. LTE reference signals reception and processing validation

Introduction. The positioning of devices according to the base stations reference signals of LTE cellular radio networks deployed everywhere is an important area of research and development that is in demand due to dense urban development with unreliable signal reception from global navigation satellite systems. The instrument for experimental approbation of technical solutions is the software and hardware of the SDR software defined radio technology. This work continues the study on the use of SDR technology for network positioning problems in terms of the experimental testing of the device for receiving reference signals of the LTE standard.Materials and methods. The correctness of the software implementation of the LTE reference signal processing procedures was verified in the course of laboratory tests that showed the accuracy of primary measurements in units of meters allowing us to speak about the satisfactory performance of the implemented SDR layout of the user device that receives the LTE reference signals.Results. Insufficient synchronization accuracy of SDR models of base stations for navigation tasks confirmed the need for hardware-software implementation of the subsystem for generating LTE reference signals in HDL for FPGAs.Discussion and conclusions. The next stage of research in the field of SDR network positioning technology is field testing of the implemented sub-system for generating LTE reference signals with sufficient synchronization accuracy of eNB models for navigation tasks.

Внутрифирменное обучение сотрудников методам и инструментам бережливого производства

As part of the urgent tasks of organizing corporate training and staff development in companies, the solutions implemented in the leading electric grid company of the Republic of Tatarstan — JSC “Grid Company”, on the organization of its own educational course aimed at mastering the methods and tools of lean production by employees of the enterprise are considered. The article describes the theoretical justification and experimental approbation of pedagogical and organizational conditions for corporate training of employees in lean production methods and tools. The analysis of the factors that most affect the effectiveness of the development of the corporate training system is carried out. The experience of organizing targeted training of the company’s employees with a sufficient level of theoretical knowledge and practical experience in the field of implementing lean production methods and tools for their pedagogical activities within the organization in order to effectively train all the company’s personnel is considered. The indicators of readiness of an employee of the company to carry out pedagogical activities, as well as indicators of the level of development of the educational program by trainees are presented. In the final part of the article, recommendations are given to organizations planning to organize their own corporate training, having prepared for this training their own staff-teachers who have a sufficient level of knowledge and experience on the topic of the planned corporate training.

Method and the device of actualization of controlling effect loading of knot of the electric power system

Subject of research: is the technique of identification СCL in electric power system knots.
 Purpose of research: consists in working out of a technique of monitoring of changes КREL in electric power system knot.
 Methods of research: imitating modelling of electric modes, digital processing of signals, method of natural experiment.
 Main results of research: the technique of monitoring КREL of knot of an electric power system of digital processing of the information based on a method has been as a result developed, having author's specific features, also has criteria of suitability of data and the device realising a technique is developed. Experimental approbation of work of the device analyzing data from means of a telemetering, an operatively-measuring complex or automated data management system is spent. Device check has shown, that on an indication range 0,75 1,2Uном the error of identification КREL has made 0,2 % that speaks about high reliability of an offered technique of actualisation КREL.

Features of Determining Hydrodynamic Parameters in Production Wells with Overflow after Level Recovery

The article deals with methods of assessing the hydrodynamic parameters of the bottomhole formation zone (reservoir pressure, productivity factor, hydraulic conductivity, piezoelectric conductivity) when developing and testing the wells in non-standard conditions (overflow after the level recovery). Theoretical aspects of the Horner method and its modifications for the pseudo-steady state (closed-hole recovery) and the Masket-Yakovlev method that is based on the assumption of an infinite value of the piezoconductivity coefficient (rigid reservoir model, open-hole recovery) are considered. The results of experimental approbation of the optimal method of hydrodynamic studies are presented when selecting the time range, the dependence of the pressure recovery in the well on time, for processing the results of the studies when developing wells with a compressor or swab, if the wellhead level is reached in the process of recovery and subsequent overflow. The bottomhole pressure and compressor pressure dependences on time have been built, as well as an indicator diagram based on the results of studying a well in the Kumkol oil and gas field, and the relationship between the well flow rate and bottomhole pressure has been analyzed.

Methodology for evaluation of slag crust separation during surfacing of low- and medium-carbon steels

The relevance of using slag crust separation methods, which are characterized by easy separation and are based on thermo-deformation processes in the sample, is shown in the development of new welding materials. The developed method of assessing slag separation based on the theoretical calculation of thermo-deformation processes in the base metal has passed the stages of experimental research The experimental approbation of the proposed methodology for assessing the separation of the slag coating from the surface of welded joints under experimental fluxes based on the TiO2-MnO-SiO2–MgO–CaO-FeO-Al2O3 slag system was carried out for different welding regimes. The evaluation criterion for the high-temperature separation of the slag coating takes into account: the ratio of the geometric parameters of the test sample, the amount of heat input during the surfacing process, and the factor of the presence of spinel-forming components at the slag-metal interface. The selected parameters for evaluating the separation of the slag crust in points, where the guaranteed separation of the slag coating is counted for the arbitrary separation of the slag during its destruction or the arbitrary separation of the slag by a monolithic layer. The practical value of the proposed method lies in the possibility of quantitative assessment of the probability of high-temperature separation of the slag coating for a wide range of fluxes for surfacing.
 The results of the conducted experiments show the efficiency of the developed methodology for evaluating the high-temperature separation of the slag coating from the surface of the weld metal.

Method for Converting the Energy Characteristics of Alternative Fuels

The article analyzes the reasons hindering the mass use of alternative fuels in the field of energy consumption of domestic transport, which for the most part have lower energy and kinetic indicators of combustion in comparison with traditional fuels. A new approach to solving the problem of improving the environmental and energy-saving indicators of combustion of alternative fuels based on their preliminary thermochemical processing - conversion on board a vehicle is presented. The results of a preliminary analytical study of the parameters of the on-board conversion process for a number of potentially acceptable types of alternative fuels are presented in order to assess the efficiency of this process. The possibility of practical implementation of the proposed process for improving the combustion indicators of alternative fuel with an assessment of its efficiency was tested based on the results of experimental approbation in the conditions of full-scale engine tests. According on the results of the study, the expediency of using this process in transport technologies is justified due to the technical simplicity of its implementation and efficiency. Thermocatalytic reactor is the simplest design of a heat exchanger, the mass and dimensional characteristics of which (in the volume of a conventional muffler) ensure the convenience of its installation in the engine exhaust system. The component composition of these products contains reactive compounds that contribute to the improvement of environmental and energy-saving indicators of the fuel combustion process, and an increase in the efficiency of the engine's operating cycle.

Веса косвенных измерений в обратных задачах фотограмметрии

This is the fourth article in the series of publications on ways of improving the statistical quality of solving inverse photogrammetry tasks. It deals with researching the impact of indirect measurement weights on the equalization’s statistical quality. The author established that following its criteria is the key to the most plausible distribution of errors on the effects of indirect measurements. Since the accuracy of the equalization is estimated by the remainder residuals of the indirect measurements groups, the reliability of these evaluations depends on how strictly the criteria for the statistical quality of the equalization are met. The standard of indicators’ accuracy reliability is obtained. An algorithm for adjusting their weights during equalization was developed. An experimental approbation of the technique was performed. Based on the results of the calculations, the effectiveness of the joint application of all ways developed in this and previous articles is established to improve the statistical quality and obtain a reliable estimate of the equalization computations accuracy. In addition, it turned out that the application of the developed algorithms enables increasing the numerical stability of the mentioned calculations and ensure the stability of the results. The expediency of clarifying the initial values of direct measurements of the equalized parameters is confirmed. The explanation of the obtained results in terms of covariance analysis is given.

Development of SDR-based Network Positioning Technology. LTE Reference Signals Reception and Processing Procedures

Introduction. The search for technical solutions to improve the positioning accuracy of devices using the infrastructure of base stations of existing and planned cellular radio networks is an important area of research and development in the last decade. Interest in network positioning is due to the unreliable reception of signals from global navigation satellite systems in dense urban areas. The instrument for experimental approbation of technical solutions is the software and hardware of the SDR software defined radio technology. This work is a continuation of the research on the use of SDR technology for network positioning tasks in terms of issues related to the reception and processing of reference signals of the LTE standard. Materials and methods. The paper presents an experimentally tested sequence of procedures for receiving and processing LTE reference signals in order to collect primary differential-range measurements for software implementation on a mock-up of a user device built using SDR software defined radio technology. Results. The software implementation of the presented procedures underlies the SDR layout of the user device for receiving and processing reference signals of the LTE standard. Discussion and conclusions. Approbation of the operation of the SDR testbed of the user device in laboratory conditions with SDR testbeds of base stations, as well as in the field with base stations of functioning LTE networks, makes it possible to search for technical solutions to improve the accuracy of positioning.

Незначимые параметры в обратных задачах фотограмметрии

The third article in this series of publications deals with solving inverse problems of photometry. The matter of reducing the dimension of the original inverse task with excluding insignificant parameters from the equation is considered. The main known ways of identifying those ones having the greatest and least influence over the main characteristics of the equalization results are noted. Their disadvantages are indicated at solving poorly conditioned issues and problems with initial measurements, the actual accuracy of which is unknown. The characteristics of the results include indicators of precision and statistical quality of the equalization. The main indicators its exactness are the average square deviations of the indirect measurements’ residuals, primarily the coordinates of the reference and connecting points. Those of the statistical quality are estimates of the direct and indirect measurements statistical quality equalization, as well as evaluating the mean square error of the weight unit after that. An algorithm was developed to refine the initial weights of direct measurements, identify and first eliminate insignificant parameters based on the analysis of intermediate data of the task being solved. An addition to the algorithm for adjusting the weights of direct measurements during equalization was formulated; it provides identification and secondary screening of insignificant parameters. Experimental approbation of the identified ways is carried out. The necessity of adjusting the weights of indirect measurements was established.

Biotesting for the objectivization of the hygienic evaluation of the surface and underground drinking water sources

Introduction. An algorithm for evaluating the hygienic safety of drinking water sources based on biotesting and studying sanitary and chemical indicators has been developed and tested. Materials and methods. The research methods included sanitary and chemical analysis of water samples, as well as biotesting methods using single-celled green alga Chlorella vulgaris Beijer and bull spermatozoa. Results. For experimental approbation of the developed algorithm for determining the hygienic safety of water based on a two-component system of express biotesting and measurement of sanitary and chemical indicators, 6 underground and 5 surface water sources were evaluated. The response of test objects indicating the presence of acute toxicity in water samples taken from surface and underground in many cases correlates with the excess of MPC for individual indicators identified by sanitary and chemical analysis. For two water samples, differences were found between the results of biotesting and sanitary-chemical analysis, and therefore it is necessary to conduct an extended toxicological and chemical assessment to identify the source of toxic effects. Limitations. The two-component test system cannot be used separately without sanitary and chemical analysis of water media. Conclusion. Biotesting can be an addition to sanitary and chemical analyses, showing the presence of toxic substances that are not in the list of mandatory indicators to be determined (according to MR 2.1.4.0176-20 (in Russian)).

EVALUATION OF STATISTICAL RESOLUTION OF ELECTRONIC COMPONENT BASE CONTROL MEANS

Calculation ratios and a method for rapid assessment of the statistical resolution of the means of control of the electronic component base are proposed. The technique allows you to quickly evaluate the capabilities of methods for regular and additional control of electronic components in terms of technological spread of parameters using measuring and non-measuring tools. The results of experimental approbation of the method are presented.

Опыт реализации проектной деятельности в вузе: на примере анализа моделей профессионализма в исследовательско-исторической ретроспективе

The article presents the results of students' project-research activities carried out within the work of the scientific circle and project gas pedal of the Department of Human Resources Management at Volga Region Institute of Management named after P. A. Stolypin – branch of Russian Academy of National Economy and Public Administration. P.A. Stolypin Volga Institute of Management – branch of Russian Academy of National Economy and Public Administration. The aim of the article is to study and analyze the models of professionalism of managerial activity of famous Russian and Soviet statesmen in the research-historical retrospective. The material of the manuscript is an experimental approbation of the method of reconstruction of the psychological profile of famous historical figures. In particular, the famous Soviet aircraft designer S.P. Korolev. The methods of research include the analysis and synthesis of biographical and autobiographical material, questioning of experts with the help of standardized interviewing techniques. Also, the article considers in detail the stages of professional development according to E.A. Klimov, including 8 phases. R.M. Belbin's «Group Roles» test identified the dominant roles in team interaction. By the method of Fetiskin, V.V. Kozlov, G.M. Manuilov styles of professional-activity communication were revealed, psychodynamics was measured by A. Bass and A. Darkey questionnaire. Conclusions on the set of competencies and psychological characteristics that ensure the successful implementation of professional activity are presented as the results of the study. In particular, the thesis about the uniqueness of the biographical contour that forms an individual managerial style is expressed.