The article deals with the current stage of modernization of the industrial sector of the economy and development strategies aimed at improving productivity in enterprises in the region. The purpose of the study: identification and analytical review of the main problems of increasing productivity in industrial enterprises of the Rostov region; definition and systematization of strategic directions of problem solving, taking into account the accumulated positive experience of the regional business community. The main methods of research are analysis and synthesis, analysis of statistical data, observation and synthesis.Specific examples of the successful use of the proposed management tools within the industrial enterprises of the largest region of Russia - the Rostov region are given. This region produces about 28% of the industrial output of the entire southern Federal district, while the growth rate of the main indicators of its socio-economic development is higher than the national average. It is concluded that in the region under consideration there are all the prerequisites for the implementation of the regional program "increasing productivity and employment support in the Rostov region" for 2018-2025 on the basis of the introduction of advanced information, innovative management technologies in production.
Keywords: management, socio-economic system, modernization, industrial sector, labor productivity, region, strategies, management models, management tools
The article presents the analysis of the properties of local fine aggregates, their influence on the characteristics of the concrete, and also presents the impact of screening crushing when it is introduced into the mixture in various proportions on the strength of concrete
Keywords: Concrete, screenings of crushing, construction sand, experiment, grain composition, concrete strength, small aggregates
Structurally heterogeneous materials, in particular polycrystalline materials, have wide application in construction and technics. The higher values of local microstress in comparison to the average values of stress lead to the faster exhaustion of bearing capacity and destruction. Therefore, nonuniformity of microstress and microstrain depending on structure, physical and mechanical properties, should be taken in consideration when estimating bearing capacity, especially for the elements of construction with different stress concentrators. On the base of the physico-mechanical model of structurally heterogeneous body stress concentration for small-scale plates , made of polycrystalline materials with hexagonal lattice, with circular holes, at the case of uniaxial stress state, is investigated. It is shown that coefficients of stress concentration depending on anisotropy of elastic properties of polycrystalline materials can take values which considerably differ from values for isotropic body. Physico-mechanical model developed for structurally heterogeneous body allows studying local microstress in the construction elements at various stress states, with different forms and kinds of stress concentrators, which is the subject of the further research
Keywords: stress distribution, structural heterogeneity of the material, polycrystalline metals,microstress and microstrain, stress concentration
In the article the scheme of the measuring stand of the device model for determining the part of the energy distributed from the generator, the scheme of the measuring stand of the model for measuring the standing water coefficient (VSWR) and the measurement of the transient resistance are presented. The best results are obtained by a partition consisting of two metal plates overlapping the path both above and below the clay layer. So, with a clay humidity of 4%, the total attenuation was 14.4 dB (-6.1 dB without a partition), and at a humidity of 16% -35 dB (-18.4 dB without a partition). There is an increase in attenuation of approximately two times compared to the case without a partition for both dry and wet clay, but the amount of attenuation is insufficient. To increase the attenuation in model 2, two consecutive resonators were created. But the attenuation in this case increased insignificantly in comparison with one resonator. It is obvious that two resonators are upset because of mutual influence on each other. Therefore, it is proposed in a real installation between these two resonators to place a section of a waveguide of nonresonant length with an absorber that will eliminate the coupling between the resonators.
Keywords: measuring stand, super-high-frequency installation, brick, drying, firing, power, structure, electrodynamic modeling, experimental setup
The mechanical stresses measuring methods analysis is showing in that paper. The purpose of that paper is to choosing the practical method of the measuring mechanical stresses in polymer glasses during its using. The calculation of the piezoelectric effect on the polycarbonate is considering in that paper. It is showing that this effect can be used for measuring the mechanical stress in polymer glasses during its using. So, it is showing the advantages of that method.
Keywords: polymer glasses, mechanical stresses, polycarbonate, piezoelectric effect, possibility of applying, comparative analysis of the methods
When organizing work on the territory of sanitary protection zones, it is necessary to take into account that the SPZ is already a territory with elevated levels of exposure, which may require the use of additional means of individual and collective protection. Meteorological parameters are important factors affecting the extent of the impact of the work on human health. The article presents a comparative analysis of the concentration of suspended substances in the workplace, depending on meteorological parameters.
Keywords: sanitary protection zone, hazard class, industrial enterprise, construction, reconstruction, ecology, atmosphere, labor protection, non-stationary workplace
The article discusses the features of the climatic conditions of St. Petersburg, affecting the formation of the ecological situation in the city, including the content of fine dust particles in the atmospheric air.
Keywords: fine dust, temperature, relative humidity, wind speed, wind rose, air pollution
The article analyzes the adaptation contour, which is an integral level of management of the body's hematopoietic system, aimed at optimal maintenance of the body's metabolism as a whole. It is indicated that for complex measurement problems it is advisable to use the principles of constructing measuring systems, formulated in terms of system functions using the fractal-categorical approach. It is concluded that the functorial and category maps make the analysis of the hematopoiesis process more complete and visual, and the possibility of further decomposition allows the researcher to carry out more detailed research, visually displays the processes of adaptation of the organism under external influences and naturally contributes to the construction of automated measuring systems for which the adaptive The contour is a model of the bioconverter of information on the processes of hematopoiesis included in composition of bioinstrumental measuring system
Keywords: structural and analytical method, information-measuring system, information flows, hematopoietic system, category diagram, functors, adaptation contour, bioinstrumental information-measuring system, control signal, measurements
The paper presents an analysis of the processes of formation and processing of vegetable waste. An assessment is given to the existing ways of processing woodworking wastes and their inefficiency is justified. A new kind of resource and energy-saving grinding set of disk mills is proposed. On the basis of the analysis of the results of experimental research, the effectiveness of the use of the proposed method for the production of wood fiber is substantiated.
Keywords: abrasive set, grinding, efficiency, wood-fiber semi-finished product, specific fiber surface, wood pulp, defibrator, refiner, refiner, knife grinding
The analysis of the experimental data is carried out and the works devoted to the account of the influence of the compressive pressure factor with the purpose of optimizing the parameters of the centrifuged products of the annular section at the compaction stage are studied. The number of rotations of the mold at the compaction stage is calculated for different values of the compressive pressure. A statistical analysis of the regression equations obtained is performed using three criteria: homogeneity of variances, significance of coefficients and adequacy, which was tested with the help of Fisher's criterion. The data were statistically processed using the Mathcad program, which allowed obtaining regression equations in the form of polynomials of the second degree with specific values of their coefficients. Graphic interpretation of mathematical dependencies is constructed. The calculated dependencies are obtained that allow to determine the required number of revolutions for any required diameter and wall thickness of annular centrifuged products for a given fixed value of the compressive pressure in concrete.
Keywords: compressive pressure, centrifuged products of annular section, response function, factor of variation, least squares method, regression equation
The article analyzes the problems and prospects for the development of green technologies and green construction in Russia and the world as as well. The author provides us the information about the outstanding examples of green buildings in the world. The dynamics of construction of green buildings for the period from 2000 to 2018 has been revealed in the article. It is also presented the advantages of introducing green technologies in the construction of buildings with respect to all participants in the construction process. By opinion of the author the important role in the part of stimulating the development of green construction plays the state, legislative initiatives. Factors restraining the growth of eco-sustainable construction in our country are revealed
Keywords: green technology, ecological construction, sustainable development, green building, resource saving, green standards, energy efficiency
The issue of quality, reliability and safety of the final products is under consideration. Process approach is the base of quality control system, and mon-itoring program is regarded for illustrative purposes.
Keywords: Quality, processor approach, quality management, monitoring
The article examines not only the issues of ensuring mutual understanding and interaction of subjects of innovative engineering, but also the need for creative development of their consciousness. Attention is paid to the increasingly popular in the invention, in the technological business and innovative engineering of critical thinking and the possibilities of its constructive use. In the final article, the authors derive an algorithm for searching for creative solutions.
Keywords: dogmatism, criticism, creativity, constructivism, search for creative solutions
Various mineral porous components, such as expanded clay, ash microspheres, etc., are used to regulate the processes of structure formation and physical and mechanical properties of shock-resistant concrete of rigid pressing.
Keywords: Regulation, structure formation, physical and mechanical properties, ash microspheres, phase-mineral composition, X-ray phase analysis, adhesion
A review of the literature concerning the molding of centrifuged concrete products was carried out. The peculiarities of centrifugation of concrete, in particular, the manufacture of centrifuged pipes, have been studied. The main parameters and indices of the quality of concrete and the centrifuged tubes themselves are considered. The traditional mode of forming non-pressure pipes is described. The calculation formulas for the parameters of the centrifugation process and their graphical dependences are given. Based on the calculated data, it is concluded that the traditional modes of shaping of non-pressure pipes are characterized by the rotation speed of the mold from 82 to 300 rpm in the stages of loading and distribution of the concrete mixture. At the sealing stage, the control of the rotation speed of the mold varies over a very wide range and depends largely on the viscosity of the concrete mix and the pressing pressure: from 825 to 4400 rpm for concrete pipes with a diameter of 100 to 300 mm. Modeling the parameters of the molding regime during the centrifugation of ring-shaped products in a laboratory installation at a maximum compaction pressure of p = 2.16 kg/cm2 will allow us to refine the obtained data and study their effect on the variability of the concrete structure
Keywords: centrifugal force, centrifugation parameters, charging speed of the mold, speed distribution of the shape, sealing speed of the mold, pressing pressure, centrifugation time, ring-shaped products