bluuebunny/crossref_metadata_2025_split huggingface dataset:
Methods for removing reduced sulfur compounds from groundwater
Authors: Wilson E V , Litvinenko V A , Obukhov D I 
Published: September 2020

Abstract
Reduced sulfur compounds contained in natural waters adversely affect human health in wastewater, cause corrosion of collector materials and structures, and inhibit biological treatment processes. The methods to reduce the reduced sulfur compounds concentration in natural and waste waters are quite well known, however, in each case, in accordance with the requirements for the quality of treatment and the initial concentration of reduced sulfur compounds, it is necessary to adapt the methods used. This article presents the results of studies on the removal of reduced sulfur compounds from groundwater. The results of the reduced sulfur compounds oxidation method with hydrogen peroxide to sulfates with aeration and without aeration of the treated water are presented, as well as the results of studies on colloidal sulfur coagulation resulting from the incomplete oxidation of the reduced sulfur compounds. The expediency of using the reduced sulfur compounds of hydrogen peroxide with simultaneous aeration of the treated water as an oxidizing agent is shown. It was established that the contact duration of the treated water containing the reduced sulfur compound with hydrogen peroxide, both with and without simultaneous aeration, should be at least 30 minutes. The results of experiments on the colloidal sulfur coagulation are also presented, indicating that the use of sodium hydro-aluminate in proportion to aluminum sulfate, which ensures the ratio [OH+]: [Al3+] = 0,5, allows not only to achieve results in water purification with bringing the quality to the standards for drinking water, but also to reduce the coagulant dose in its active part by 30%, compared to other options. It has been analytically established that when using aluminum oxy sulfates or oxy chlorides for coagulation of colloidal sulfur, it is advisable to use the low-base coagulants.
Ultraviolet air disinfection in ventilation and air conditioning systems
Authors: Mikaeva S A , Mikaeva A S , Brysin A N 
Published: September 2020

Abstract
Not only human health depends on the microbiological purity of air, but also the production processes efficiency at the enterprises of agriculture, food, pharmaceutical industry, and other human activities. To solve the problems of microbiological air pollution and ventilation as well as air conditioning systems, ultraviolet irradiation devices based on low-pressure Hg-lamps are traditionally used. Based on world experience in air treatment of ventilation and air conditioning systems, convenient to use, the energy-efficient, small-sized and safe-to-operate disinfection devices based on amalgam ultraviolet lamps have been created. Recognizing the importance of the problem and taking into account the regulatory documents requirements, we have created professional installations for the ventilation, air channels and air conditioning systems’ disinfection: ultraviolet modules MEGALIT and bactericidal cells MEGALIT AERO.
On the need of adjusting the new rules for connecting to gas distribution networks
Authors: Edukov D A , Edukov V A 
Published: September 2020

Abstract
One of the important problems in meeting the heat supply needs of housing projects is the gas distribution network construction. The existing rules for connecting to gas distribution networks are constantly undergoing changes and do not provide an increase in the dynamics of gasification in the country as a whole. The article discusses various options for connecting applicants to a medium-pressure gas distribution network. As a result of the studies, it was shown that the refusal to install gas reduction points on the territory of the applicant’s site will have the best effect on increasing the dynamics of the gas distribution network and reducing the connection time for gas consumption networks in the district.
Adjustment of the harvesting and transport groups’ composition for grain harvesting in real time
Authors: Nikolaev N. 
Published: September 2020

Abstract
An algorithm and a system for the operational correction of the harvesting and transport complex composition for harvesting grain crops are developed. The system allows to adjust the structure of machine groups for harvesting, transhipment and transportation of grain promptly. The system is based on the machine conditions’ real-time monitoring and the transfer of control actions through a single control centre. The use of such organization of work reduces unproductive downtime of machines. As a result, the cost is reduced and the productivity of harvesting and transport groups is growing.
Theoretical principles for the diagnostic support development for transport and technological machines
Authors: Voronin V V 
Published: September 2020

Abstract
Three theoretical principles of developing the diagnostic support for technical objects of diagnosis are formulated, namely: the principle of dominance - knowledge about the set of possible defects of the diagnosis object is dominated by all other types of diagnostic knowledge; the principle of five systemic representations of the diagnostic object - in the problem of finding defects with maximum depth, in the general case, knowledge of the external, degradation, and structural representations of the diagnostic object is necessary; compliance principle - the operational reliability of the diagnostic object is to be supported by an effective maintenance system corresponding to it. The main goal of the work is to establish the interdependence between these principles. In addition, the listed principles are analysed in relation to the main diagnostic tasks and various classes of technical objects of diagnosis, and are also recommended for use in the development of diagnostic support for technical systems, including the development and maintenance of the diagnostic expert systems.
Production distortions: methods and approaches to assessment
Authors: Takhumova O V , Vasilieva N K , Loiko V I , Baranovskaya T P 
Published: September 2020

Abstract
The key point in the development of any economic system is the balanced formation of various conditions that reflect the economic, social, political, infrastructural and technological aspects of the process under study. The indicated priorities are traced in the organization of economic activity in various sectors of the economy, including the sphere of construction production and services. The presented work was an attempt to determine the vector of the construction industry sustainable development, based on the allocation of imbalance indicators and a system of criteria that reflect uniform development and growth. The following methods were used by us as the research methods: synthesis, a method of multi-stage analysis and functional dependence, the method of financial ratios, design and construction, etc. The study reflects a theoretical approach to assessing the existing imbalances based on a criteria-based assessment of sustainable development of construction production in a single economic space of the country. The priority of regional development in the general concept of sustainable functioning necessitates consideration from the point of view of the cause-effect relationships and the formation of the indicators system for quantitative characteristics, taking into account socio-economic, environmental production, which determined the identification of sub-indexes of causation (efficiency conditions), intermediate results (environmental standards ) and the consequences (the result of energy savings). The practical significance of the work lies in the development of proposals to improve the sustainability of the domestic organizations involved in the construction industry. The proposed methodological approach is universal and can be used for various sectors of the economy, including for assessing the sustainable development of agricultural production.
To the question of the construction investment impact on the business regional activity
Authors: Shtofer G A , Vetrova N M , Gaisarova A A , Smirnova I Yu 
Published: September 2020

Abstract
The scale and effectiveness of investment activity is mainly associated with the creation of an attractive investment climate in the region, which reflects a combination of factors that allow the investors to safely invest in order to provide the materials, resources and get guaranteed benefits with high material output. Construction has always been distinguished by capital and material consumption, cycle time, the use of special equipment and technologies, as well as a special management system to attract and implement investments. But even with the correct calculations, investments may not bring the expected results due to lack of business and entrepreneurial resources, including those at the regional level. But on the other hand, investment processes in general, and in construction in particular, form the business activity of the region and business entities. The purpose of the study is to clarify the methodology for assessing the investments impact (general and in construction) on the business activity level in the region. The tasks of identifying the level of investments’ influence on the parameters of business activity in the region and conducting testing of the proposed developments on the Crimean region example were solved. As a result, a definition of business activity in the region was developed with the allocation of the regional socio-economic system parameters’ blocks with a justification of the investment activity characteristics, including in construction. An approach to assessing the business activity of the region is proposed, within the framework of which the correlation dependence of the investments influence on the regional business activity level is calculated using the example of the Crimean regional complex. The identified parameters of the investments’ impact flows both in construction, material production, and in innovation, can serve as the basis for developing a set of measures to stimulate the investors regarding the required indicators of the socio-economic development of the territory.
Project finance risk management at the stages of the housing projects’ life cycle
Authors: Voronina N V , Steksova S Yu 
Published: September 2020

Abstract
Project financing is currently one of the possible ways to attract financial resources to the Russian economy in modern conditions. In the construction industry, due to the deficit of own funds and liquid assets, a decrease in business activity is observed. If the effective measures to support housing construction are not taken, the consequences for the construction industry and its related sectors of the economy will be disastrous. Therefore, the introduction of a new mechanism for financing the housing projects will allow the enterprises to receive funds on sufficiently favorable terms and will serve as an impetus to the industrial development as a whole. The project finance use in housing is possible only with the use of escrow accounts. In this regard, the new risks for the project participants appear and those that were traditionally present with project financing are redistributed. To create an effective project financing system, it is necessary not only to develop a methodology for identifying risks with project financing, but also to develop a risk management system that allows to take the informed decisions about the financing possibility taking into account uncertainties. The authors systematized and identified the risks of project financing at all the project life cycle phases, on the basis of which a project financing risk management system was developed.
Project infrastructure bonds as a tool for the PPP projects’ additional financing in the healthcare facilities’ construction
Authors: Sidorenko E N , Semiglazova V A 
Published: September 2020

Abstract
The article discusses the possibilities of using the additional sources of financing in the construction and operation of infrastructure health facilities in the framework of public-private partnership agreements. The specificity of infrastructure bonds as a form of investment in the infrastructure facilities’ creation in the health sector is clarified.
It is proposed to expand the list of PPPs in the healthcare sector by means of the non-concession models. In concessions, there are a number of restrictions removed in the application of non-concessive PPPs. Therefore, the project bonds should be separated from the concession bonds. The project bonds’ liquidity is determined by collateral, which can be the government guarantees, future cash income, real estate created. It is important to legally link the use of project bonds and the issuance of state guarantees in the long term, developing the institution of the rights’ pledge to claim the future cash payments.
The investment process features in housing construction of municipalities
Authors: Ivanova D G , Ivanova O E , Sukhinin S A 
Published: September 2020

Abstract
Investment activity has many aspects and is determined by the goals, objectives, investors’ interests, its potential opportunities for investing funds, as well as the type and expected return of the invested object. Investments are the financial basis for housing construction. The essence of the investment process in housing is to find the financial resources and carry out the practical actions with them in order to make a profit and achieve another useful effect through the housing construction and its implementation on the market. Based on the economic feasibility principles, the investment process has a certain volume and terms of financial investments, which in the case of housing construction come in the form of capital investments. Ensuring the specific construction projects’ implementation, investments are of particular importance for municipalities, contributing to the expansion of their housing stock and improving the living conditions of the population through the new built housing acquisition. The investment process in housing has a number of specific features associated with the buildings’ construction long duration. At the same time, investments in housing construction are more reliable and less risky in comparison with other types of financial investments, since they can provide the investor with a greater profit in the implementation of constructed residential real estate. Due to the dynamism of the housing market, its conjuncture significantly affects the structure transformation, the investment level and the construction activities of municipalities. This study is dedicated to the investment process features’ consideration in the housing construction of municipalities.
On the issue of the construction products brands’ promoti
Authors: Khan R S , Surkov V V , Druzhba O V , Druzhba K G 
Published: September 2020

Abstract
For a number of reasons, the domestic construction industry has traditionally been characterized by a conservative attitude to such means of influencing the market as marketing in general and branding in particular. The excess of demand over supply, observed in the Russian housing market for a long time, allowed the construction companies to consider marketing as an unnecessary, unproductive element of market activity. However, the active growth in production volumes that took place in the field of housing over the past 20 years has led to a significant intensification of competition between the construction companies, contributed to the increased demands from the consumers, and, as a result, forced many construction companies to reconsider their old attitude to marketing. To date, almost every major construction company operating in the housing market is already actively using certain marketing tools. Branding was no exception in this series either. Creating and promoting brands of construction companies and residential complexes has become a daily practice. A review of the current situation, problems and prospects in this area are the objectives of this article.
Economic-mathematical model for calculating the labor cost as a part of the investment construction project’s cost on the estimated standardization and market pricing methods’ basis
Authors: Dyakova O V , Vasilenko Zh A , Usatkina O I , Alexandria A V 
Published: September 2020

Abstract
Effective management of investment and construction projects is associated with the problem of cost estimation. The guidelines for the construction products’ determining prices disclosing methods have been developed. However, in practice, the investor estimates, which is an important condition, but not sufficient are used as basic. The need for an accurate calculation of the investment construction project cost for both the investor and the contractor dictates the new requirements for finding approaches to the materials’ systematization, as well as streamlining the procedure for calculating the construction products’ price. At the pre-investment stage of design, cost optimization should be carried out by calculating the capital investments using the aggregated indicators. In this situation, priority attention should be directed to rationing and labor costs. The calculation of probable labor costs for a certain period will make it possible to increase the validity of the decisions taken at the initial stage of the investment construction project’s development. Today it is necessary to develop a new approach to the issue of calculating labor costs in construction, which, on the one hand, will determine the amount of labor costs and production efficiency, and on the other hand, make an investment and construction project attractive in modern market conditions.
Development of an effective business intercommunicating system based on the electronic document management introduction for a construction company
Authors: Kostikova A V , Tarasova I A , Kazanova N V , Krivoklyakina E G 
Published: September 2020

Abstract
In context of industry 4.0, where the information component and intercommunicating technologies prevail over the traditional interaction forms, and the business intercommunicating sphere goes into virtual space, enterprises face the need to develop a new business intercommunicating system in order to improve the business intercommunicating system and improve management efficiency in general. The business intercommunicating basic unit is a document. The documents’ movement in all cases reflects the management apparatus organizational structure and the responsibilities distribution between its constituent parts. The basic business processes’ point automation during the documents’ exchange with external contractors becomes insufficient and in modern conditions requires a total transition to the document management in electronic form. The article proposes the measures aimed at modernizing the information flow schemes and the document management system for integrating electronic intercommunicating processes into the construction company management model. The purpose of this article is to propose a method for improving the business intercommunicating system of a construction enterprise based on its business model reengineering and the digital technologies’ introduction. Actually, the method will include the structural analysis stages, logical design, construction and verification of the “as-is” model, the requirements’ formulation for a digital business intercommunicating system, the business processes’ reengineering, the “to-be” models’ formation. As a result of the system project’s implementation, it was possible to streamline all accounting and settlement processes; reduce losses associated with the documents’ movement, effectively organize the employees’ work and ensure their high-quality interaction; speed up the process of exchanging information with external contractors; provide the opportunity to receive various analytical data for management decisions.
The essence and prospects of business development in Russia in modern conditions
Authors: Zilberova I Yu , Shumeev P A , Novoselova I V 
Published: September 2020

Abstract
At the present stage, more and more new managerial and legal models appear in Russia in the context of a developing real estate market with the construction business organization. Some of them are the adapted models for managing the investment and construction projects, which are just beginning to be formed and used by entrepreneurs and managers in the Russian conditions. The article considers the business development as an important factor for the Russian economy as a factor in improving the investment and construction activities’ efficiency. The essence definition of business development as a system of organizational, legal and economic relations between the subjects of the real estate market related to the socio-economic territorial business development is formulated. The main business development stages are highlighted, including for the projects’ implementation in Russia.
The introduction of intelligent electrical networks in Russia
Authors: Mikhnev I P , Salnikova N A , Orudjev N Y , Shestopalova E L 
Published: September 2020

Abstract
The article analyzes the development of modern energy. From the analysis should be the most promising area of development is the modernization of energy by reducing losses in power systems. Technically, this problem can be solved with the help of intelligent networks (Smart Grid). An example of the creation of intelligent electrical networks in the Russian Federation.
Methodology to assess the comfort level of the residential development of a microdistrict in the city
Authors: Ilyichev V A , Kolchunov V I , Gordon V A , Bakaeva N V 
Published: September 2020

Abstract
According to the RAACS urban planning principles, it is proposed to evaluate the level of comfortable and safe urban environment, based on a new methodological approach - technologies compatible with the biosphere - and a quantitative evaluation of the implementation of the city functions for each inhabitant. Among the functions of the city in the present work are considered: life support, providing entertainment and recreation, creating conditions for power, mercy, learning, realizing creative needs, strengthening ties with nature. As indicators that quantitatively reflect the level of implementation of the functions of the city and its components, it is proposed to introduce a system of quality indicators for the planning and design decisions of the territories of the urban districts. Using the vectorial representation of the current state of the system in this paper, we developed a methodology to assess the level of comfort and viability of the life support processes in a residential and neighborhood districts. The numerical implementation of the methodology for assessing the level of comfort is made for the component “Housing”, which plays a fundamental role in a cardinal increase in the comfort of the urban environment.