bluuebunny/crossref_metadata_2025_split huggingface dataset:
Renewable energy in St. Petersburg and Leningrad Region
Authors: Kalchenko O A , Evseeva S A , Evseeva O A 
Published: September 2020

Abstract
The article is devoted to the topic of the most current interests - renewable energy development. Alternative sources of energy play an increasingly significant role in the development of the whole energy power use in different countries. Russia is more and more focusing on this field to decrease in energy consumption and the mutual penetration of natural and technological components. The current instruments of support in the field of renewable energy are presented on the level of the Russian Federation as well as on the chosen regions - Saint Petersburg and Leningrad region. The paper observes the Governmental program for support of the development of renewable energy in Russia. The information about types of the alternative sources of energy that are more used in St. Petersburg and Leningrad region is summed up. Best practice in current cases of acting projects on the territory of the chosen regions is accumulated. It was concluded that the most efficient way to use alternative sources is in its combination, but not individually.
The value creation chain: diagnostic restrictions and challenges
Authors: Mogilko D , Iliashenko O , Ilin I , Iliashenko V 
Published: September 2020

Abstract
The article presents an approach to diagnosing constraints in the operating value chain. The presented approach is based on the requirements and recommendations of quality standards for the application of the process approach. Based on the definition of the value stream, an optimization problem is formulated: increasing the stream value of products and services through improving the properties of the main processes, taking into account the resource limitations of the organization. The method of constraint analysis is applied to the formulated optimization problem, three types of constraints of the operating value chain are considered - in terms of effectiveness, efficiency and resource intensity. Diagnostics of the restriction of the flow of value was carried out using the methodology for assessing customer satisfaction. This made it possible to formulate an integral satisfaction rating for the value chain based on the estimates of its constituent operations according to the criteria of “Importance” and “Satisfaction”, as well as the “critical” parameter of the operation-restriction through the description of the process model and the formation of score scales for certain process parameters. The results of expert evaluations will help to form clusters of stakeholder’s opinions, which will help in initiating and managing improvement projects. The proposed approach to the diagnosis of restrictions on the flow of value of products and services can be applied to various industries and services: construction, energy, medicine, transport logistics, etc.
Basic methodology in construction of vertical gardening of a building
Authors: Ivanova N , Ganzha O , Podkovyrov I 
Published: September 2020

Abstract
The research covers basic procedure of the formation of a model of vertical gardening of buildings within the concept of landscape gardening, ecology of vertical gardening, green construction technologies and measures to improve the energy performance of buildings. The “objective tree” is set; it determines the current trends of development of green panes. The content of the landscape-ecological “green constructor” of plant selection is set, in order to ensure the comfort of the living environment, the formation of the biodiversity of the urbanized environment, and the resolution of the socio-ecological problems of the city and agricultural issues. For the first time, a selection procedure for vertical gardening is offered. Architectural and landscape solutions for improving the environment with green panes in the city of Volgograd are presented. The work uses multivariate landscape-ecological analysis; simulation method and experimental design of a green pane in in the city of Volgograd. The developed methodology of landscape-ecological construction of green panes allows using these ideas in domestic and foreign construction in similar environmental conditions. New landscape solutions are presented. They increase the potential of energy-saving technologies of buildings in the formation of vertical gardening, including issues of improving comfort, health and safety of people.
Development of a laboratory installation of a digital measuring system for visualization of internal pipeline processes
Authors: Petrov A , Popov A , Molotok A 
Published: September 2020

Abstract
The article describes the tendency of the Russian thermal power complex to structure and visualize methods for calculating thermal processes inside the pipeline using digital technologies such as Big Data and Computer Vision. It is concluded that the next step in the development of pipeline measurement systems is to increase the degree of multi-functionality and versatility of measuring devices, as well as that at present principles of building and implementing AIS, are being rethought taking into account the latest achievements in IT. The article also describes planned to create a laboratory facility that will be used for the viability of the concept of an automated information system, data collection, testing of mathematical models, and creating software to improve the efficiency of functioning. The main features are the visualization of processes occurring in the pipeline systems of the oil and gas complex and housing and communal services.
Refined assessment of the state of the power system for its effective management
Authors: Bodrenkov E A , Korovkin N V 
Published: September 2020

Abstract
The technique of assessing the state of the power network with two independent nodes of the radial and magistral structure is given. The advantages of the proposed approach in comparison with numerical methods are the efficiency of calculations. The theoretical significance lies in the possibility of expanding the presented approach on networks with a large number of independent nodes. Practical significance lies in the possibility of applying the results obtained to calculate the parameters of the electric network during its preliminary decomposition. The obtained formulas are tested on models of the electric network of the radial and magistral configuration.
Statistical data representation in the context of increasing construction efficiency
Authors: Gazin A , Ivanov A , Malygin A , Isaeva A 
Published: September 2020

Abstract
The purpose of the paper is the development of new statistical tests and new forms of their representation which add classic tests and classic form of their description. The development of new building materials requires several years and is quite expensive. Builders cannot enter the market and recoup their investments because of the need to test a new matter for sufficiently large samples of buildings. The tests in terms of time and cost resources can be comparable to the ones for development of a new substance. Thus, the experiments can be very expensive, which makes it difficult to quickly get enough statistical data to increase construction efficiency. That is why it is important to develop new statistical tests and new forms of their representation. It is shown that the spectrum of a geometric mean molecule has a smaller number of spectral lines for small samples of biometric data as compared with the molecule of chi-square criterion. In addition, the probability amplitudes of the spectral components of a geometric mean molecule have a close to normal distribution. This advisably distinguishes the geometric mean molecule from the chi-square molecule. The criterion for the geometric mean of small samples has greater power as compared with the chi-square criterion. In order to increase the accuracy of statistical analysis of small samples, it is necessary to extend a variety of statistical criteria both in the usual continuous representation of their states, and in the analysis of their discrete spectra of the probability amplitudes. To increase the efficiency of the construction sector, it is necessary to transfer to the use of deep neural networks that analyze dozens of new and old statistical criteria, their equivalent neurons and equivalent artificial molecules. Technological capabilities for creating these structures already exist today.
Energy modeling and quality management systems in high-rise construction
Authors: Kazaryan R , Pogodin D , Galaeva N , Avetisyan R 
Published: September 2020

Abstract
Currently, there was a contradiction between practice that recognizes the objective need for a periodic assessment of the efficiency of the quality management system in the organizational structures of construction companies and the state of the scientific and methodological base for resolving these issues. International experience in the implementation of objects using 3D printing technology was studied. Issues of energy modeling are also discussed in the paper. The advantages and disadvantages of various methods in the manufacture of building structures by the layered method are revealed. The technology of layer-by-layer construction of high-rise buildings will provide a solution to affordable housing issues, as well as quick restoration of houses in case of natural disasters (floods, earthquakes, fires and other emergencies). The need has arisen for creating an automated system for choosing rational organizational and technological solutions based on modern design technologies. The most crucial factor in the modeling of key performance indicators of the system-target approach to estimation of the sustainability level of net assets on the basis of IPSAS is a multicriterial evaluation of the basic management strategy for quality system elements used in operational and strategic planning projects in construction operations.
Study of steel part hardening coating microstructure
Authors: Ishkov A , Malikov V 
Published: September 2020

Abstract
The article describes the research results of hardening coatings obtained by induction surfacing of hard alloy with various base materials and the coating itself. Information is given on measurements of the hardness of the resulting coatings and the microhardness of various phases of the coating. Macrophotographs of coatings obtained by various methods are presented, and various phases in the resulting coating are isolated. Conclusions are made concerning the potential wear resistance of the obtained coatings.
Assessment of quality of products from polymer materials for machine-building purposes
Authors: Gramakov D , Larchenko A , Filippenko N , Livshits A , Bakanin D , Bychkovskiy V , Butorin D 
Published: September 2020

Abstract
This paper presents the results of research of the contact method of volumetric temperature control of a polymer sample. The scheme of thermocouples (TC) location in a polymer sample, finite-element model and general mathematical model for calculating the influence of the quantity of thermocouples on heating samples at high-frequency processing are constructed. Comparative analysis of the obtained results was conducted.
Experimental determination of elastic properties of the loose materials in the field of high pressures after heating
Authors: Elovenko D , Kräusel V 
Published: September 2020

AbstractThis article presents a physical study of materials’ elastic response (asbestos, slag microspheres, fireclay and corundum powders) at the pressure up to 70 MPa. The research is carried out after heating the samples up to 500 °C and exposure to crimping pressure up to 105 MPa. The graphical dependencies are given for each materials of relative strain from the pressure level. The original research technique of elastic response for materials samples having a loose aggregate state is proposed in laboratory. This technique is based on the use of a special laboratory equipment relatively simple and efficient design which combines power and measurement components. A detailed description of the scheme and principle of operation equipment is given. The calibration of dynamometer component of the special equipment is carried out and graphs of its work are presented. A technique for calculating the elastic moduli of material samples is proposed. The elastic moduli and the relative residual deformation of the material samples are determined. The ability of materials to preserve their loose properties are studied (dismantling ability). The conclusion about the possibility of using materials in the housing of pressure vessels is made as a means of protecting their load-bearing structural elements from unwanted heating and reducing in their strength characteristics.
Ecologically pure gypsum composites modified by microfillers
Authors: Petropavlovskaya V , Novichenkova T , Petropavlovskii K , Zavadko M 
Published: September 2020

Abstract
The use of micro-fillers in order to reduce the weight of gypsum products and at the same time increase their operational properties is a problem that today requires an urgent solution. The study of the effect of modifying micro-fillers on the properties of gypsum stone allows increasing the competitiveness of many modern innovative products and improving their quality. The inclusion of a ceramic component in the gypsum binder foam raw material mixture affects the properties of the modified composite structure. The optimal values of the content of foam additives and water for mixing gypsum binder are determined. The structure, technical characteristics of composites, and their quality are primarily provided by the addition of ceramic foam. However, it allows adjusting the optimal water content of the raw mixes. Micro-fillers can, apparently, be considered as an effective additive for obtaining bulk products for internal work, as well as for gypsum casting.
Analysis of materials for elaboration of national products
Authors: Ternovskov V B , Rodionov A S , Danilina M V , Pimenov N A , Romanchenko L N , Yarkin V V 
Published: September 2020

Abstract
This article analyzes the information about the developed, introduced, industrially mastered domestic composite materials on domestic raw materials according to the developed technologies for their production and application in industry, which allows recommending these developments as import substitution of dishes used by Russian manufacturers with non-stick coating of composite materials. The reducing of the dependence of the imported raw materials and components is not just a slogan. It is the prospect of using PTFE in dispersion-filled coatings due to a number of its unique properties: an abnormally low friction coefficient among structural materials (0.04-0.05 for steel without lubrication); high temperature resistance (decomposition onset temperature 418 ° C); high chemical stability (reacts only with melts of alkali metals, elemental fluorine at high temperatures); possesses excellent insulating properties. Based on the data on the Russian-made fluoroplast containing materials and coatings for various operational purposes created and introduced into production, it can be confidently stated: each of the developments individually and in the complex is import-substituting for technological, technical and quality indicators performed on domestic raw materials.
Determination of nano characteristics of strength of materials based on the multilevel model of time dependences of acoustic emission parameters
Authors: Nosov V V , Peretyatko S A , Artyushchenko A P 
Published: September 2020

Abstract
While manufacturing and exploitation of different materials, there could be observed complex physicochemical processes of interaction between their individual components and these components with the environment. Revealing such mechanisms helps to understand their distinct features and optimize technological processes of manufacturing materials with certain characteristics. The solution could be based on interpretation of results of acoustic emission (AE) tests from the perspective of multilevel kinetic model of AE of heterogeneous materials. The article describes the research, the essence of which was to identify systematic changes in the values of the parameters of the AE coefficients included in the model when changing various technological and operational factors on the basis of their operational assessment based on the results of acoustic emission tests.
Disc seeder with auto tracking system depth of sowing seeds
Authors: Kokoshin S N , Kirgintsev B O , Tashlanov V I 
Published: September 2020

AbstractObservance of the depth of sowing of grain crops within the limits established by agrotechnical requirements is a guarantee of high yield. When the disc coulter moves in the soil, a variable resistance force acts on it, which affects the seeding depth and the qualitative characteristics of the shoots. Since there are different soils within the same field, the depth of sowing with the serial coulters becomes not stable. To solve this problem, the article proposes a technical solution and an automated tracking system that, in combination, ensures the uniformity of seeding depth with disc coulters. The use of a flexible tubular element in the opener coulter design makes it possible to compensate for movements from the soil resistance force in real time. In this paper, a mathematical analysis of the dependence of the influence of the seed depth on the compensating force on a flexible tubular element is made, and the maximum values of this force are determined.
Contact method of volume control of temperature of a polymer sample at high-frequency heating
Authors: Bychkovsky V , Bakanin D , Filippenko N , Butorin D , Kuraitis A , Larchenko A 
Published: September 2020

Abstract
This paper presents the results of research of the contact method of volumetric temperature control of a polymer sample. The scheme of thermocouples (TC) location in a polymer sample, finite-element model and general mathematical model for calculating the influence of the quantity of thermocouples on heating samples at high-frequency processing are constructed. Comparative analysis of the obtained results was conducted.
Portable sounding pulse generator for electrical impedance tomography systems
Authors: Korolyuk E S , Brazovskii K S 
Published: September 2020

Abstract
Cryosurgery is a surgical method of biological tissue removal at extremely low temperatures. One of the main issues of cryosurgery is low accuracy in determining the boundaries and depth of frozen tissue. This paper presents the results of the development of a sounding pulse generator for evaluation of the electrical characteristics of biological objects during cryodestruction. The developed sounding pulse generator is a part of the experimental system for the development of a tomograph, using the principle of electric impedance tomography. This paper presents an experimental prototype of the sounding pulse generator applied to study the impedance properties of biological tissue in a wide temperature range from minus 196°C to plus 50°C. The application field for the developed generator: medical systems for visualization of boundaries and depth of biological tissue freezing during cryosurgical operations.
Combined technology of field research and modeling in the development of the rationing method pulp mill wastewater in the conditions of deep water outlets
Authors: Shishkin A I , Chusov A N , Stroganova M S , Kushnerov A I 
Published: September 2020

Abstract
The algorithm and the structure of information support for the model of implementation of the method of normalization of pulp mill wastewaters for deep dispersing water outlets, taking into account the hydrological regime, are determined. The combined technology is based on a geoinformation model of a natural-technogenic complex with identification parameters based on natural data of various hydrological regimes, wind unidirectional and multidirectional currents in depth. The characteristics of the jet zone and the main dilution are evaluated in accordance with the situational water use plan of the pulp mill. The hydraulic solution of the problem of transformation of nonconservative pollutants is implemented using the model of convective-diffusion transport, based on the equation of V. M. Makkaveev, and the transformation of substances using linear mono - and nonlinear bimolecular schemes. To determine the specificity of biochemical processes, the intensity of oxygen uptake and decomposition of organic substances was estimated by direct and indirect indicators. The proposed nonlinear model allowed us to determine the degree of uniformity of water masses in the jet zone of deep water discharge in the main dilution section up to the control gate. The algorithm of identification of parameters of the estimated model the convective-diffusive transport and transformation of substances on observed data taking into account specificity of the studied processes, and used types of models of transfer and transformation of organic compounds. The main measured parameters are temperature, electrical conductivity, turbidity of water, dissolved oxygen content, BOD5, BOD20, suspended substances, nitrite ion, phenols, phosphates, lignosulfonates. Laboratory studies were carried out at various dilution multiplicities with the determination of biochemical oxidation constants used in modeling various sites in a water object.
Pulsed electric discharge in an aqueous medium for processing raw amber
Authors: Martynov N , Avramov D , Kozlov G , Pushkarev M 
Published: September 2020

Abstract
The paper presents the results on the use of pulsed electric discharge in an aqueous medium (Yutkin effect) for processing raw amber. The proposed method allows to achieve a high degree of purification of the surface of amber, including purification from the oxidized crust, almost without destruction of the original pieces, while there is no sticking of small fractions and other negative phenomena. Using the same method, but in other treatment modes, it is possible to crush off-grade feedstock for further refining. Fractional composition of the obtaining material and the degree of its purification are regulated by the treatment mode. So three technological processes (washing, peeling and crushing) can be carried out using only one installation, which significantly reduce the cost of industrial implementation.