bluuebunny/crossref_metadata_2025_split huggingface dataset:
Life Cycle Modeling for Utility Infrastructure in Municipal Entities
Authors: Balashov E B 
Published: March 2021

Abstract
The current development stage of utility infrastructure is characterized by structural changes resulting from the existing property rights, as well as institutional, organizational, economic, concessional, innovative, and resource-saving mechanisms, the accelerated introduction of new technologies and materials, and the implementation of actions aimed at the reduction of physical and functional depreciation of facilities. The key objectives of managing the reconstruction, upgrade, and repairs of the public utility sector (PUS) facilities include the sustainable development, update, and operation of the housing stock and utility infrastructure (UI), preservation, and technical operability of structures and utility systems. Therefore, the public utility services currently require new strategic planning methods for the social and economic development of the PUS as a key element of municipal entities based on the use of reproduction policy tools throughout the utility infrastructure life cycles and the improvement of project and program approaches necessary to ensure the investment in the sector and facilitate the interactions between the municipal entities, business community, and residents. This article deals with the methodological approach to the life cycle modeling for utility infrastructure in municipal entities based on balancing the phases and innovation activities concerning the features of utility service production and consumption and the necessity to use digital and smart-city technologies to maintain proper operational modes and parameters throughout the life cycles of utility infrastructure units. This requires accelerating reproduction processes, maintaining the best proportion of capital and current costs, expected profitability, and management risks for utility property portfolio.
The Architecture of the Public Spaces for Art in the Context of the Urban Structure of Munich
Authors: Gelfond A L , Erofeeva I V , Moiseenko V A 
Published: March 2021

Abstract
The interaction of the public spaces for art with the urban structure of Munich is researched on the basis of mind maps. Three architecturally-town-planning triads belonging to the three various levels were discovered. At the bottom level is the ensemble of the Königsplatz with Propylaea (the central element), Glyptothek and Staatliche Antikensammlungen. At the average level is the mega-ensemble, composed by the Academy of Fine Arts together with Siegestor (the central element), the complex of three Pinakotheks and the Haus der Kunst. At the uppermost level is the «urban triptych», composed by the historical centre of Munich (the central element), the palace and park ensemble of Nimfenburg and the Olympic park. The town-planning forecast concerning the formation of the ensemble of public spaces for art in the northeast quadrant of the city and of the mega-ensemble of public spaces for art in the southwest quadrant of Munich is made.
An Example of Controlling the Obtained Characteristics of Technological Stress Distributions in a Layer-By-Layer Manufactured Product, Based on a Model of Additive Process Mechanics
Authors: Parshin D A 
Published: March 2021

Abstract
Technological processes of layer-by-layer manufacturing of cylindrical products by the method of power winding of a thin tape on a sufficiently rigid circular base are considered. A characteristic factor for the processes under consideration is the creation of initial stresses in the elementary layers of additional material, which are sequentially included in the composition of the being formed product. It is assumed that the applied winding technology allows us to arbitrarily influence these stresses. This makes it possible to control the technological stresses developing in the resulting product. This paper is devoted to the formulation and solution of one of the problems of such control using current approaches of additive process mechanics. The simulation is performed in a quasi-static approximation within the limits of small elastic strains. A non-classical mechanical model of the process under study is proposed, and a mathematical formulation of the corresponding initial boundary value problem and its closed analytical solution are given. Based on the constructed solution, the regularities of the influence of the initial stress state of the attached material on the nature of the development of the contact pressure on the used base from the side of the material layer formed on it are studied. The problem of providing the required law of change in the value of this pressure in the process under consideration by setting the appropriate program for varying the initial stresses is formulated and solved. Corollaries of an applied nature are made.
Appropriation of the City by the Youth: Parks and Squares as Public Spaces
Authors: Antonova N , Abramova S , Gurarii A 
Published: March 2021

Abstract
The article reports on the perception of young people to city parks and green squares as public spaces, or the “third place”. Urban green space have multiple benefits for the physical and mental health and wellbeing of urban population. It acts as a factor of the formation of local identity and contributes to exercising the diversity of needs of different social groups. Based on a series of in-depth interviews (n=10), the article argues that the main barriers to attending parks are their remoteness from the place of residence and the lack of time. According to the respondents, an ideal park is divided into several zones according to the needs and interests of different social groups. It contains areas for walking, and playgrounds for children and teenagers. Young people attach particular importance to the landscaping of parks since the presence of flowers, trees, shrubs, lawns has a positive effect on the emotional state. In addition, city parks are expected to have such objects as benches, waste bins, toilets, and cafes. However, the respondents’ opinions around the presence of event and entertainment industries are divided: some welcome such activities, whereas others share a negative attitude towards them. In general, parks and squares today are becoming a source of positive emotions and attitudes.
The Planting of Greenery for Retaining Walls as a Direction in the Design of Vladivostok
Authors: Fedorovskaya N A , Chernova A V , Kravchenko I A 
Published: March 2021

Abstract
The article the problem of landscaping (greening) retaining walls in Vladivostok is considered. The Vladivostok city is in a territory with a monsoon climate has a difficult relief. Therefore, the city has many high vertical retaining walls that support the formation of terraces and horizontal surfaces. The vertical retaining walls areas in the city are comparable to the area of facades of buildings. These walls are currently mostly not landscaped (greened). Natural colors and texture these walls are not expressive and don’t contribute to the formation of an integral visual environment of the city. It was found that; problem can be solved as a result of an integrated approach with the help of full or partial greening of retaining walls. Here the types and examples of stationary and mobile greening of the Vladivostok city retaining walls are presented. A number of plants that can be used for landscaping urban retaining walls have been identified. The proposed concept contributes to solving local problems of landscaping (greening) individual urban objects. It’s also expands the possibilities of forming for a holistic concept of greening in the Vladivostok.
Monitoring of Organizational, Technological and Environmental Solutions in Construction with Blockchain Technologies
Authors: Abramyan S G , Klenina E A , Peskov A E , Burlachenko A O 
Published: March 2021

Abstract
The paper considers the relevance of blockchain technology in the field of construction, highlighting that the expansion of information modelling through integration of BIM and blockchain technology opens up new opportunities not only for making beneficial construction agreements, but also for arranging comprehensive monitoring of construction progress. It also argues that the number of blockchains depends on the selected option of devising organizational and technological solutions for any type of construction. The paper offers an example of a specific project with a brief description of the construction technology employed therein and provides an interconnection diagram of organizational, technological and environmental blockchains. Novelty of the paper consists in the fact that it suggests considering technology and work organization blockchains as elements inseparable from environmental blockchains. The theoretic importance of the work stems from the fact that it may serve as the basis for developing the theory and general methodology for creating construction blockchain technology and its integration with BIM technology.
Influence of Ni / NiO Ratio on the Performance of Thermoelectrochemical Waste Heat Harvester Based on Hollow Microspheres
Authors: Boychenko E A , Kiselev N V , Taganova A A , Artyukhov D I , Khaidarov B B , Kolesnikov E A , Yudin A G , Vikulova M A , Gorshkov N V , Kuznetsov D V , Burmistrov I N 
Published: March 2021

Abstract
Technologies harvesting and converting the heat of low-temperature sources into electricity are one of the current trends in modern renewable energy. Thermoelectrochemical cells based on a nickel oxide electrode are gaining increasing popularity among researchers due to the high values of the hypothetical Seebeck coefficient. This work is devoted to the study of the reduction modes effect of hollow nickel oxide microspheres on the ratio of oxide and metal nickel forms in their structure. The paper presents the synthesis of microspheres by the pyrolysis of ultrasonic aerosols of an aqueous solution of nickel nitrate. Composition and morphology are studied by scanning electron microscopy and X-ray non-standard quantitative analysis. It was shown that the proportion of metallic nickel increases with an increase in the reduction temperature to about 375°C and then changes slightly. For microspheres, reduced at 350 °C, the main parameters of the thermoelectrochemical cell were determined. It was shown that the hypothetical Seebeck coefficient in the assembled cell system is 3.1 mV/K, and the resistance to charge transfer across the electrode-electrolyte interface was less than 1 Ohm. It confirms the applicability of these materials as electrodes for electrochemical systems and the possibility of obtaining high values of output power.
Diagnosing the Most Effective Environmental Aspects in Eco-Friendly Multi-Storey Residential Complexes
Authors: Alawsi W A , Molchanov V M , Shahin B R 
Published: March 2021

Abstract
The global evaluation systems based on the specialized environmental aspects are the most widespread around the world. The ratings of these systems depend on the type of projects to be evaluated and, moreover, on the specifics of the area. In this paper research the author intends to review and analyse the most important terms and indicators of these systems to build the basis for selection and inclusion of the key effective aspects. The purpose of these effective aspects is to improve the environmental performance of eco-friendly residential complexes. The author abstracted and clearly identified six effective environmental aspects furthermore, minor aspects are also implied, and all of them constitute an approved basis for evaluating the performance of environmentally friendly multi-storey residential complexes.
Ways to Eliminate Unpleasant Smelling Substances for the Environmental Safety of Meat Industry Enterprises
Authors: Svetlov D A , Svetlov D D , Belousova N I , Lisitsyn B A , Erofeeva I V , Dergunova A V 
Published: March 2021

Abstract
A lot of attention is being paid to the issues of safe stay of humans and other biological communities in residential and working premises, industrial and agricultural buildings. This is due to the fact that microscopic organisms, along with the destruction of building materials and products in buildings, can cause a pathological condition called Sick Room Syndrome (SBP), allergies, and sometimes mycotic infection of the lungs. In this paper, we consider the issues of improving the environmental situation in buildings of meat processing plants, by reducing the emissions of unpleasant-smelling substances in the air of the working area with the help of disinfectants “Teflex”. The bactericidal effect of the drug “Teflex” is determined by the ability of guanidine derivatives to bind to the cell walls and membranes of bacteria, penetrate into the cell nucleus and inhibit cellular enzymes. The technology of treatment of premises with a solution of disinfectant using a “quasar” type sprayer and a “Clean air” installation is presented. It was experimentally revealed that in this case it is advisable to use 1,5-2,0 % solutions of the disinfectant. The use of disinfectants in such concentrations helps to eliminate unpleasant-smelling substance as a continuous source of emission, and the presence of volley emissions.
Integrated Sustainable Development of Small Towns and Settlements
Authors: Shalina D S , Stepanova N R , Drozdova A V 
Published: March 2021

Abstract
When we develop big cities, we forget about small cities and settlements. The rate of development of small towns is very low. You can change the trend of improvement and prosperity: direct efforts to the development of small towns. In our research, we consider the village of Shalya. It has a lot of potential, but it needs a push. After a survey of the population and our research analysis, we have chosen a certain territory and directions for its integrated sustainable development. As a result, we justified our project in terms of marketing and economic aspects. The new facility with elements of digitalization in Shalya will contribute to the development of the city and the use of similar technologies. Citizens’ lives will improve.
To the Question of the Influence of the Polar Region Seismicity on the Ground Transportation Infrastructure
Authors: Makhutov N A , Kossov V S , Lunin A A , Oganyan E S , Shabunevich V I 
Published: March 2021

Abstract
A harmonic analysis is carried out for a simplified finite element model of the Earth with characteristic important elements of transportation infrastructure in the equatorial and polar regions. The results are presented for the calculation of the Earth model with the sections of the main pipelines attached in the specified areas, as well as the results of a similar calculation for the assembled rails and sleepers with the embankment and basements with different properties under harmonic displacements of the basements. The calculations show significantly greater load on the considered elements of the transportation infrastructure in the polar region as compared to the equatorial one because the displacements of the Earth’s surface in the polar zones of the model are much greater in magnitude than in the equatorial ones. Consequently, it is necessary to consider these phenomena in the calculations and experimental measurements of seismic impacts when designing transportation infrastructure in the Arctic region.
Strength Analysis of Concrete-Filled Steel Tubes on the Basis of Plasticity Conditions
Authors: Pavlikov A M , Kochkarov D V , Harkava O V 
Published: March 2021

AbstractThe methods of calculating the strength of concrete-filled steel tubular members based on the theories of plasticity of Saint-Venan and Huber-Mises-Genka are developed in the article. The criterion for the destruction of the composite element is the ultimate limit state. The strength of the normal cross-section of a cylindrical concrete-filled steel member at axial compression is determined taking into account the meridional pressure of the concrete on the tube and axial stress in it. The equation of strength of the tubular member is obtained, in which the stress in the tube reaches the design yield strength of steel at the moment of destruction of the element, that is, the strength of the materials is used completely. An example of the calculation is performed and the results of the calculation is compared with the experimental data for 13 samples.
Comparison of the Durability of Buildings in a Group
Authors: Shafranovsky T , Rimshin V , Varlamov A , Merkulov S 
Published: March 2021

Abstract
The influence of various factors on the durability of concrete and reinforced concrete structures is determined. Three groups of factors are identified: elasticity, strength, and crack resistance, which influence the assessment of the durability of reinforced concrete. Based on the analysis, the determining influence of the crack resistance factor on the degradation of concrete was revealed. Based on the analysis of existing methods for determining the characteristics of concrete crack resistance, a new method is proposed. The method allows us to evaluate the crack resistance (fracture toughness) of concrete and reinforced concrete structures in any state. The method is proposed and the description of samples for the implementation of the method is given. Standard formulas based on prismatic samples extracted from concrete were used to evaluate the crack resistance characteristics. Comparative tests of samples were carried out using the known and proposed method. The obtained characteristics are used to assess the condition and durability of structures of buildings and structures.
Development of an Analytical and Graphic Method for Determining the Compositions of Epoxy Compounds with Increased Chemical and Biological Resistance
Authors: Gavrilov M A , Gubanov D A , Martynov A A , Filatov A V 
Published: March 2021

Abstract
The task of developing durable and effective building materials for protection against aggressive environments is urgent. One of the ways to increase the durability of buildings and structures is the use of polymer composite materials during their construction. In addition, the urgent task of recycling waste from construction and chemical industries also has to be considered. Determination of rational compositions of composite materials manufactured by compression and vibrocompression methods is of considerable interest. The problems of obtaining compositions of polymer composites based on the use of a modifying additive - a plasticizer (organosilicon varnish KO-922) and asbestos-containing fillers based on waste from construction and chemical industries are addressed. An analytical and graphical method for calculating the compositions of epoxy composite materials based on production wastes has been developed. Rational formulations based on modified epoxy binder have been obtained. The nomograms make it possible to make a practical choice of one or another filler composition for given conditions.
The Technology of Installation Using Pneumatic Inflatable Formwork
Authors: Abu-Khasan M , Egorov V , Nikonova E , Sakharova A 
Published: March 2021

Abstract
The article is devoted to the current topic of fast-assembled buildings, the analysis of existing technologies, including the use of pneumatic formwork, allows installation both in the urban environment and in special conditions. A crane-free installation technology using pneumatic formwork is proposed, followed by filling the inter-deck space with foam material based on Quad Core.
Optimization of the Configuration of Cross-Beam System Dimensional Structure Depending on the Specified
Authors: Abu-Khasan M , Egorov V , Perminova T , Abu Khasan P 
Published: March 2021

Abstract
This article presents an analysis of cross-beam systems made of wood-composite materials made of glued wood, highlights their positive aspects, including a significant reduction in the weight of the structure, as well as disadvantages that prevent the spread of this technology in Russia. The experience of calculation and construction of structural plates in Russia is considered. the most progressive method of arrangement of the core structure is determined experimentally. The possibilities of using cross-beam systems for the construction of public buildings and structures are considered.
Verification of the Method for Constructing Computational Models of Hybrid Beams in Software and Computer Systems that Use the Finite Element Method as Their Basis
Authors: Egorov V , Abu-Khasan M , Mamyrova A 
Published: March 2021

Abstract
To analyze the operation of hybrid structures, it is necessary to build their models with subsequent calculation in special computational software systems that use the finite element method as their basis. One of the features of hybrid structures is the use of dissimilar materials in a single structure, arranged in a special way, ensuring their joint work. When creating a calculation model of a hybrid beam in PVC, it is required to take this feature into account and pay special attention to the contact areas of dissimilar materials. The article analyzes 2 methods for creating computational models in the SCAD, taking into account this feature, verification of the results obtained. Conclusions are drawn about the possibility of using these methods in design.
Technological Schemes for Collection, Disposal and Treatment of Surface Run-off and Their Development
Authors: Strelkov A K , Teplykh S Yu , Gorshkalev P A 
Published: March 2021

Abstract
The paper focuses on surface wastewater collection and its disposal from railway station tracks. It is described that usually either drainage trays located along the tracks or perforated pipelines arranged in special channels filled with water-permeable material are used to collect and divert surface run-off from the railway track. The analysis reveals the qualitative and quantitative composition of surface run-off. The paper shares data obtained during the investigation of railway stations and enterprises of the Kuibyshev railway and focuses on contamination of the territory of this enterprise with petroleum products and on concentrations surface wastewater contamination with petroleum products, suspended substances and iron. The authors further introduce technological schemes for surface wastewater treatment, which allow achieving the quality of treated wastewater at the level of maximum permissible concentrations for water bodies of fishing purposes.
Management of Integrated Utilization of Industrial Waste Storage Facilities
Authors: Tumenova S A 
Published: March 2021

Abstract
Absract. At the current stage of development, access to mineral resources is becoming a critical factor in economic growth, which requires an increase in the use of both natural and technogenic raw materials. The article is dedicated to the management of industrial waste. An algorithm has been developed for the recycling system for technogenic deposits, which can serve as a methodological basis for strategic management of the process of involving them in the economy. An organizational and management model of a private eco-industrial park of the Greenfield type is proposed as an integrated system aimed at the use of technogenic resources, as well as environmental rehabilitation of waste localization sites. The possibility of its application for the processing of stale tailings of the former Tyrnyauz tungsten-molybdenum plant is estimated. It is concluded that, as a result of the integrated use of the unique resource potential of the waste accumulators of this mining and processing plant, the formation of prerequisites for its restoration is possible.