bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Durability of Large-Block Hollow Ceramics
Authors: Zheldakov D , Tursukov S 
Published: March 2021

Abstract
Increased requirements for heat insulation of building enclosure contribute to widening of modern effective building materials. One of those items is large-block hollow ceramics. Large-block hollow ceramics is actively used for building enclosure because of high properties and increasing production. However, it’s usage in outer walls and material’s humidification significantly decreases the durability of ceramic blocks. This article is about durability of large-block hollow ceramics. The main scientific hypothesis is that the web’s material of the block has increased chemical destruction speed compared to shell’s material. Also, article include the results of laboratory experiments of material’s destruction based on the process of material’s chemical corrosion that were conducted by developed methods of determination the corrosive activity of moisture and material’s chemical durability. Based on the results of pilot researches at one of Russian factories, the method of large-block ceramic material’s research was developed. The first stage results of research are shown. The results of research confirms the decrease of web’s material strength compared to strength of shell’s material.
Biopolymer Geotextiles Based on Mixtures of Polyhydroxybutyrate and Polylactic Acid
Authors: Olkhov A A , Mastalygina E E , Iordanskii A L 
Published: March 2021

Abstract
In this work, studies of the hydrolytic destruction of biodegradable nonwoven fibrous and film materials based on the mixtures of biobased polymers - polyhydroxybutyrate and polylactic acid, have been carried out. Fibers were obtained from a solution in chloroform by electrospinning. It was shown that materials with high content of polylactide had a low resistance to hydrolysis as compared to polyhydroxybutyrate. Nonwoven fibrous materials obtained by electrospinning had a higher water absorption and a high reactivity to hydrolysis, which significantly accelerated (by about 5 times) the biodegradation process under environmental conditions. The degree of hydrolytic destruction of fibrous materials based on polylactide and mixtures with its content of 50 wt.% or more is higher than that of samples enriched with polyhydroxybutyrate. The studied materials can be successfully used as nonwoven geotextiles for reinforcing the soil on the slopes of various types of roads being capable of accelerating the germination of grass cover.
Modern Design-Projection of Architecture of Orthodox Churches
Authors: Pallotta V I , Barsukova N I , Lebedeva O P 
Published: March 2021

Abstract
The article raises the question of a modern approach to the design of the architecture of Orthodox churches in our multi-confessional country. A significant place is given to Orthodox Church architecture and the consistent introduction of temples and temple complexes into the structural composition of urban space. According to many experts in Russia, the practice of architectural design and the environmental organization of cities are separate processes. The main task of modern design of architecture of Orthodox churches is to create an architecture that is based on the latest technologies, but remains humane, absolutely not indifferent to the person, to the tradition.
Numerical Modeling of Energy Consumption in Residential Buildings
Authors: Pukhkal V 
Published: March 2021

Abstract
Various software for building energy modeling are considered, which allow to determine the amount of energy required for building operation already at the design stage. The uncertainty of energy models for non-residential buildings ranges from ±10 to ±40% compared to the actual energy consumption. Energy consumption of heating, ventilation and hot water supply systems of two multi-story residential buildings was calculated using IES VE modeling software. Actual values of energy consumption in buildings were obtained according to the data of commercial metering devices. The following errors were observed in the energy consumption models of residential buildings in IES VE software compared to the actual building conditions: for heating — up to ±33%, for hot water supply — from plus 38% to plus 95%. The calculation results can be used to estimate the relative energy performance and compare different modeling alternatives, as well as the effectiveness of energy-saving measures, though, cannot be used to estimate the actual energy consumption.
Local Culture Preservation Through Design in Global City
Authors: Zhelondievskaia L , Barysheva V 
Published: March 2021

Abstract
Global cities are becoming the centers of innovations in the XXI century. The image of urban society is a multicultural one, stipulating cross-cultural communications, but the trends show something different. The symbols of national culture dissolve in the information flow, and the differences are neutralized. This article reflects upon the preservation of the local culture that was formed throughout history under the new conditions of existence. Local culture, in this article, stands for a system of cultural values formulated by a group of people in a certain territory. This research covers the visual identification of local culture expressed through design. Within the modern communications model, design can reflect the most significant and prominent features of local culture in a visual form.
The current visual culture of big cities features a hodgepodge of styles that demonstrates the dissociation of the visual environment as a result of modernist and post-modern project technologies and, to a lesser extent, specific local cultures. This article deals with the positive examples of competition works by young designers where the local culture of regions is seamlessly entailed in the modern visual environment. Such initiatives are the signs of shifting towards the reassessment of the cultural values of regions.
Launching an open dialog about values serves as a boost to preserve the cultural heritage for future generations. The authors see any initiatives from professional communities, civil society organizations, and researchers as an important part of public introspection about the identification and preservation of regional culture in a global city.
Numerical Simulation of Polydisperse Two-phase Unidirectional Fibrous Structures Electroelastic Deformation
Authors: Pan’kov A A , Pisarev P V , Bayandin S R 
Published: March 2021

Abstract
In this work the problem formulation is stated, and a mathematical model is developed for calculating the electroelastic deformation of polydisperse two-phase unidirectional fibrous structures. The object of the research was a unidirectional transversely isotropic composite with a two-phase polydisperse structure - a piezo actuator cell and fragments of polydisperse fibrous structures. The constitutive relations at the composite macrolevel were obtained for longitudinal and transverse electromagnetic loading with allowance for the phase conductivity. The coefficients of the electromagnetic coupling of the composite were numerically determined depending on the volume fraction of the piezoelectric phase in the fibers and matrix form. The analysis of the obtained numerical solutions was carried out, the coincidence of the analytical solution with the solution of the asymptotic averaging method for an ideal periodic fibrous structure was obtained. Recommendations on the volumetric content of phases in a two-phase polydisperse composite are presented.
Basic Directions in the Formation of a Hybrid Urban Environment of Coastal Cities in the South of Primorsky Region
Authors: Tlusty F R , Tlusty R E , Fedorovskaya N A 
Published: March 2021

Abstract
The problem of forming a hybrid urban environment using digital technologies in coastal cities in the south of Primorsky Krai is relevance and beyond doubt. The article discusses the basic directions of development of the architectural and design environment using digital technologies. Particular attention is paid to improving the quality of customer service in the architectural and construction business through the use of social networks and multimedia media; active use of modern digital gadgets and their software (digital advertising presentations, information collection and the possibility of remote service from various mobile devices); mutual, almost tactile, interaction with the client (remote designer, client, supplier), which allows you to control all processes “online” in real time. The authors focus on the potential economic effect of the digital technologies under study, point to the advantages of 3D architectural design and 3D additive manufacturing over standard technologies. The paper examines the influence of local regional conditions on the design of the urban environment; the cost of producing subject-spatial content using 3D printers; creation of management systems of the “smart” urban environment type; environmental friendliness of the use of digital technologies. The problems of modern legal regulation of urban planning activities and technical regulation are considered. A hybrid urban environment is seen as a space for a safe and comfortable living environment for human society.
Decor as a Way to Form a Style in a Modern Interior
Authors: Fedorovskaya N A , Chernova A V , Kravchenko I A , Petukhov V V 
Published: March 2021

Abstract
This article discusses the problem of understanding decor and decorativeness in modern architecture and interior design. Except the traditional representation of decor as decoration, and an additional, unimportant part of the external and internal space of buildings, there is a broader and more complex concept of decor as the entire non-constructive part of a building. It has been established that in modern interiors the decor at the level of four main indicators is actively manifested. This construction / shape, material of manufacture / decoration, technique / technology of creation, lighting. Each of these indicators has unique characteristics. For example, the constructions have proportionality, streamlining, geometrization, symmetry, asymmetry. The material has texture, texture, color, etc. Let’s pay attention to the fact that the decor, if you look at it widely, it is directly related to the category of style. It seems that decor in interior design is a kind of way of materializing style. It is a tool that makes aesthetic representations of beauty and harmony real. It has been established that decorativeness is different. The decor is a system of elements that are united by a single artistic idea. The style orientation depends from changes in decorative elements in interior design. The free use of various style elements in modern interiors allows expressing the creative approach of the designer and the tastes of the customer. Style elements also open wide possibilities for choosing the design of the space, i.e. its decoration in a broad term. Thus, decor can be considered as one of the keyways of shaping style in a modern interior. The proposed concept allows you to expand your understanding of decor in art.
Behavior of the Abrasive Medium in a Single-Axis Vibration System
Authors: Elakova A , Stupko V , Ryabov E 
Published: March 2021

Abstract
The article deals with the physical basis of the behavior of free abrasive grains in a single-axis vibration system. A mathematical model is made that represents the layered division of the container into layers without mixing. The established operating mode can be considered as a quasi-static state, which allowed us to determine the parameters of the speed and density of the layers of abrasive material in the working area. The optimal loading height of the working environment and the operating modes of the installation were determined.
Concept of Sustainable Development of the Construction Sector Based on BIM-Technology
Authors: Abramyan S G , Barkovskaya A Yu , Peskov A E , Klenina E A 
Published: March 2021

Abstract
The paper explores the relevance and defines the role of BIM technology fitting into the general concept of sustainable construction development. Summing up the analysis of scientific publications, the authors note that at the current stage of BIM technology development there is no common idea of its staged progression. Further, the authors suggest the overall IBM evolution model in the construction sector showing the individual stages. Because sustainable construction development is inconceivable without environmental aspect, a special role in the new model is given to environmental monitoring: first, at each stage of construction modeling, second, as a suggested new model stage identified as 7D, where all environmental support information will be accumulated subsequently to become the basis for optimizing the environmental parameters of construction and operation of a building or facility. The authors further suggest considering reconstruction of a structural system not as a conventional lifetime stage in the overall BIM model, but as a new lifecycle of a previously operated system with all stages characteristic of new construction. The paper underlines that the new understanding of the BIM concept makes it an integral part of the construction process and a strategy of successfully arranging construction operations.
Assessment of Construction Materials Trends Salt Content from Scanned Images
Authors: Afonin V V , Yelchischeva T F , Svetlov D A , Zotkina M M , Erofeeva I V , Emelyanov D V 
Published: March 2021

Abstract
Composite building materials subjected to such operational influences as high humidity and temperature have been investigated. As a result of the experiments carried out within 45 days of the samples, their scanned images were obtained, which were represented by RGB color models and processed in order to identify changes in their color properties. Samples of materials are ranked by revealing a tendency to salt formation on their surface. Depending on the change in the brightness of the samples during their exposure, the images of the samples are divided into two groups, one of which contains images that at the last exposure area have a higher level of brightness relative to the control sample, approaching white. The second group is characterized by lower brightness values also relative to the control sample. As a result, samples are identified, the images of which have a noticeable tendency to salt formation, which is controlled by the level of white brightness.
The Technology of Multilayer Mechanical Stabilization of the Railway Ballast by Flat Polymer Geogrids
Authors: Abrashitov A , Kuznetsova A 
Published: March 2021

Abstract
The problem of railway ballast degradation during service life is receiving considerable attention. The primary reason of aggregate particles cracking and abrasion is the maintenance operation of machine ballast tamping. Reduction of tamping operations frequency helps to maintain the quality of crushed stone and therefore, reduce the deformation of ballast. This may be achieved by increasing aggregate stiffness by mechanical stabilisation with flat rigid polymer geogrid. Laboratory modeling of cyclic loaded ballast shows that one layer of geogrid at the bottom of ballast reduces the settlement by 34 % while multilayer stabilisation by 3 geogrids reduces it by 67 % and possibly allows avoiding tapping during service life. As an alternative maintenance option, the authors propose bedding with pneumatic stone blowing or shallow tapping to the depth of 70 mm.
Tribological Fracture of Ferritic-Pearlitic Steel with Nano and Submicron Structure during Sliding Friction
Authors: Yakovleva S P , Makharova S N , Mordovskoy P G 
Published: March 2021

Abstract
An urgent task of tribology is to study the wear mechanisms of various materials for the development of stable wear-resistant microstructures and optimal modes of their production. The purpose of this work is to assess the wear resistance of low-alloy steel with a submicrocrystalline ferritic matrix, reinforced with nano- and microspheres of cementite, as well as to reveal the features of its destruction by friction based on the analysis of friction surfaces. Steel nanostructuring was carried out using cold (at room temperature) equal-channel angular pressing and subsequent annealing. The process of steel wear in coarse-grained and nanosubmicron states has been studied at various stages of tribological loading under sliding friction conditions using optical and scanning electron microscopy, profilometry, and analysis of changes in the roughness parameters of friction surfaces. It is shown that the formation in steel of a heterogeneous structure “submicron ferrite matrix - nanoscale carbide phase” provided an increase in wear resistance by more than two times. The features of contact fracture are revealed, which determine the increase in the wear resistance of steel upon refining the structure and indicate significant differences in the nature of the metal tribological strength formation, depending on the level of dispersion of microstructural elements. The results obtained can be used in the development of technological processes for the formation of nanoscale structural components and improving the properties of traditional low-alloy steels.
Conceptual Modeling as a Basis for Forming of Creative Skills
Authors: Erysheva E , Demidova T 
Published: March 2021

Abstract
Modern architecture is based on new concept, new methods, requires new approaches, directions and goals, which should not be confined within narrow formal compositional requirements, but should be considered comprehensively: information, science and the environment in general predetermined the development of new directions. On the one hand, the main principles of architectural systems are dynamism, variability, adaptation of the compositional structure to the modern requirements of life, on the other hand, the gradual penetration of new ideas from the field of philosophy, ecology, and anthropology into the field of architecture. This paper is devoted to the formation of creative skills in teaching the basics of architectural design. The main goal of the conceptual approach in student course design is the development of creative potential, the formation of an individual creative method for each student, the importance of understanding the place of architecture in all spheres of human activity and in the overall ecosystem.
Algorithm for Choosing a Technology for Insulating a Building Facade During Major Repairs Based on Multi-Criteria Optimization
Authors: Dement’eva M E 
Published: March 2021

Abstract
The article presents the results of the formation of a decision-making model on the choice of a building facade insulation project based on the hierarchy analysis method. A popular insulation system is a hinged ventilated facade, which is a multi-layer structure. Failure of any structural element inevitably leads to the opening of the entire system at the point of failure. This design requires periodic inspection during operation, which significantly increases operating costs. That is why, at the design stage of facade insulation, it is necessary to take into account a large number of factors that can affect the decrease in reliability and efficiency in the process of subsequent operation. The relevance of the study is justified by the variety of constructive and technological solutions for insulating the facade of the building, the lack of a methodology for their selection. The aim of the work was to develop a decision-making model for choosing a design solution for a building facade insulation system based on the hierarchy analysis method. The object of the research was the criteria for comparing different types of facade insulation, the principles of their ranking. The subject of the research was to study the possibility of using multicriteria optimization methods for making a decision on the choice of a system of a hinged ventilated facade. One of the significant results of the study is the developed decision-making algorithm, taking into account the promising operational technical and economic indicators.
Innovative Pile Technologies in Modern Foundation Construction
Authors: Kocherzhenko V V , Suleymanova L A , Kocherzhenko A V 
Published: March 2021

Abstract
The article considers innovative pile technologies that can significantly increase the load-bearing capacity of reinforced concrete piles by increasing the friction forces on the side surface of hanging piles. The authors developed designs of modular reinforced concrete piles for the perception of various combinations of external influences, and also studied the influence of the granulometric composition of the soil adjacent to the pile body on its load-bearing capacity. The study included dynamic tests of t-shaped and square piles, theoretical studies of the interaction of t-shaped piles with clay soil by mathematical modeling, and the selection of the composition and distribution of coarse-grained filler around the pile developed by the authors with “pockets” (cavities) during its driving. The developed innovative solutions allow increasing the angle of internal friction of the soil adjacent to the reinforced concrete pile, while increasing the load-bearing capacity.
Influence of Chemical Additives on Modification of the Structure of Hydrosilicates of Cement Systems
Authors: Erofeev V T , Makridin N I , Maksimova I N , Burnaykin I N 
Published: March 2021

Abstract
The article provides information on the study of the influence of aprotic acid (AA) additives on the electrophysical properties of calcium hydrosilicates (HSCs), which allow us to better understand their physical and chemical nature, the type of chemical bond, and the effect of impurities on the structure. The measurements showed that the specific electrical conductivity of HSCs is within 10−7-10−8 Ohms−1 ⋅ cm−1. This suggests that HSCs are more “bad” semiconductors than dielectrics. Specific electrical conductivity of HSCs obtained without additives is 10 times greater than with additives. Experimental data shown that the activation energy of the intrinsic conductivity is less than for the impurity conductivity due to imperfections of the crystal lattice, cations and anions of AA additives. The exception is HSCs obtained with the additives BaCl2, CrCl3 and CoCI2 at a concentration of 50 mg/l. For true semiconductors, on the contrary, E

a0 » Eai. Both without additives and with AA additives, the temperature of the beginning of its own conductivity is the same − 50 °C. The decrease in the specific electrical conductivity of HSCs with all the listed AA additives allows us to assert that it is due not so much to the presence of an ordered covalent crystal lattice, but mainly to the covalent interaction of atoms within the near order, as is observed in melts and glasses.