bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Production Technology of Hydrin T6000 Elastomers on Their Properties and Structure
Authors: Fedorova A F , Davydova M L 
Published: March 2021

Abstract
The influence of the technology for producing elastomer materials based on epichlorohydrin rubber of Hydrin T6000 brand on physical-mechanical properties, structure formation, and frost resistance is studied. Differences in the properties of vulcanizates are revealed due to the formation of various sulfide bonds in a vulcanization network with different densities. The use of rubber swelling technology in a plasticizer leads to a screening effect, which reduces the interaction of the filler with the polymer. On the plus side, this effect improves low-temperature properties, and on the minus side, deteriorates physical-mechanical properties of the material.
Principles of Formation of Aboveground Parking Lots as a Part of Residential Building or Complex
Authors: Muratava A , Melnikova I B , Popov A V 
Published: March 2021

Abstract
The article deals with the problem of parking and storage of personal transport in multi-storey residential development areas. Using of underground parking under a building or yard may not always be the most profitable solution. Especially taking into account that the nature of the soil in the largest megacities of Russia is very complex and it leads to a strong increase in the cost price of the project. Options for organizing above-ground parking are proposed and analyzed. The advantages and disadvantages of modern free-standing parking lots are described in the article. Examples of built-in attached parking lots within a residential group are demonstrated too. The advantages of automated parking lots built into the lower floors of high-rise buildings are listed. Project proposals are presented that demonstrate the possibility of placing automatic Parking directly in the lower floors of a residential building.
Formation of Architectural and Planning Solutions of Spaces for Rites and Games in Ethno-Cultural Tourist Clusters of the Russian-Kazakh Borderland
Authors: Bantserova O L , Kasimova A R 
Published: March 2021

Abstract
The goal of this study is to form architectural and planning solutions of spaces for rites and games in the ethno-cultural tourist clusters of the Russian-Kazakhstan borderland. In order to achieve the goal, the study addressed the following challenges: researches sequences of traditional rites and folk games, identified the necessary spaces, the amount of furniture and equipment to ensure these actions, as well as the number of people involved in the process. The following methods were used in the scientific work: natural observation, photo-fixation of ceremonies and traditional games, as well as the study of these processes using ergonomic methods. As a result, architectural and planning solutions of spaces for ceremonies and games of various ethnic groups of the Russian-Kazakhstan borderland in ethno-cultural tourist clusters were defined.
Criteria for Evaluating Local Stability of Steel Beam Walls in Case of Uneven Stress Distribution
Authors: Sventikov A A , Kuznetsov D N , Turishchev P N 
Published: March 2021

Abstract
In the article, numerical studies are performed to assess the stress-strain state of the wall of a steel beam with an I-beam symmetrical cross-section. The determination of internal forces and stresses is performed in the SCAD Office computing complex. A new method is proposed for estimating the average stress values in the wall, taking into account the uneven distribution of stress over the area of the wall section where local stability is evaluated. Based on the results of calculations, stress plots and mosaics are constructed, showing their spatial distribution of stress on the controlled sections of the beam wall compartments. Analysis of the research results showed that the most appropriate application of the proposed approach is in areas with uneven distribution of beam stresses, especially in the support sections of the wall.
Innovation Intelligent Control Systems in Construction
Authors: Zilberova I , Petrov K , Lamy K H 
Published: March 2021

Abstract
In the article the authors study the design of construction processes. The first part describes that the design with the solution of a number of organizational and technological problems. One of these problems is to determine the reliability of not only the construction teams, but the transport and technological flow and in accordance with the planned parameters. The authors suggest not only to determine these indicators correctly, but also to manage them with the help of automatic intelligent integrated systems. This will allow you to reliably determine and adjust the timing of work and their cost at the design stage of construction of the complex. The authors have developed an algorithm for assessing the organizational and technological reliability of related construction and mechanized processes. Mathematical calculations of mechanization of construction and installation works are given. The algorithm of integration of crews of construction transport and technological and a stream in a uniform functional cycle is given.
Efficiency of Reducing Noise Pollution by Using the Greening System of Buildings
Authors: Shushunova N , Feoktistova O , Shushunova T 
Published: March 2021

Abstract
Noise pollution in the cities is a major factor jeopardizing health as well as human living environments. However, previous research mainly focused on the reducing noise from different human activities, especially in the construction. We consider the problem more comprehensively and study the various possible sources of noise and the possibilities for their reduction or disposal in general. This article presents the methods of reducing noise pollution by using the greening system of buildings. The purpose of the work is to analyse the main sources of noise pollution of buildings and their mitigation methods. We propose the innovative modular green roof systems in the environmental development of green buildings. Efficiency of reducing noise pollution by using the greening system is verified by a case study on a residential building project.
Environmental Certification Objects Role in Architectural Design
Authors: Sukhinina E A 
Published: March 2021

Abstract
The issues of ecological design of architectural objects using international (BREEM, LEED, DGNB) and national environmental standards in construction (GREEN ZOMM, SAR-SPZS) were studied. The number of certified buildings in Russia has been determined and systematized in various areas. A graphic analysis of buildings with an international environmental certificate has been carried out. The characteristic typical features of objects that meet the requirements of environmental standards regarding the arrangement of the adjacent territory, volumetric solutions, the choice of types of glazing, and the decoration of facades are highlighted. A new classification of environmentally certified buildings by architectural and compositional features is proposed: single parallelepipeds of regular shape; twin placement of volumes; volumes of a linear form; streamlined volumes; dynamic compositions with prominent elements. The main aspects for assessing the visual environmental sustainability of the objects under consideration are identified. Today, the formation of the architectural space takes place in a complex interaction of technological and environmental solutions, as evidenced by modern design experience. As part of the author’s scientific research, ways of developing further environmental certification of real estate in Russia are outlined.
Investigation of Mammoth Tusk Mammuthus Primigenius by Thermogravimetry and X-ray Diffraction Analysis
Authors: Solovev T M , Petukhova E S , Botvin G V , Isakova T A , Pavlova V V 
Published: March 2021

AbstractThe article represents the results of the research of the mammoth tuskMammuthus Primigeniususing thermogravimetric (TGA) and X-ray diffraction analysis (XRD). The stages of thermal destruction of mammoth tusk components and their temperature limits are revealed. XRD of mammoth tusk showed that heat treatment leads to a change in the structure of the mineral component of the material under study from hydroxyapatite (HAP) to whitlockite. It was found that this process is caused by the presence of magnesium ions in the crystal lattice of HAP.
Mathematical Modeling of the Thermal Regime of Lip Seal
Authors: Starostin N P , Tikhonov R S 
Published: March 2021

Abstract
In this article, on the basis of mathematical modeling, simplified models of the thermal process of the lip seal are presented. Comparison of the computational results revealed that for the model, taking into account the reciprocating motion of the rod (the “with moving source” model), the simplified model with a fixed uniform distribution of the heat flux taking into account convective heat transfer from the free friction surface is the closest model - the “to lack” heat source. It is established that the traditionally used simplified model with a fixed uniform distribution of the heat flux, which does not take into account convective heat transfer from the friction surface (the “with excess” model), deviates over time from the “with moving source” model. Methods are proposed for determining the oscillation frequencies of the rod at which the simplified model describes the temperature field in the seal with suitable accuracy for practical use.
Influence of Quartz-Containing Filler on the Impact Viscosity of ED-20 Epoxy Resin
Authors: Fedorov Yu Yu , Savvina A V , Vasilev S V 
Published: March 2021

Abstract
This article discusses the effect of quartz-containing dispersed filler on the toughness of ED-20 epoxy. The optimum content of this filler was established, at which the impact strength of epoxy composite samples increases by 73%. When the test temperature decreases, the reinforcing effect of the filler disappears at temperatures below 0 °C.
Controversies in Technical Regulations on Safety Requirements of Russian Urban Development Code
Authors: Absimetov V A , Saltanova E V 
Published: March 2021

Abstract
This article lists the legal requirements on technical regulations in rating, compliance assessment, monitoring, and control. It presents a pyramid of harmonized standard requirements based on a parametric rating system.
The specific features of similar requirements are explained according to the Urban Development Code of Russia. The authors suggest some ways of improving the current situation and adjusting the existing system of technical regulation in construction according to the international practices.
Effect of Conductive Carbon Black Concentration on Tyre Regenerate Properties
Authors: Antoev K P , Shadrinov N V 
Published: March 2021

Abstract
Electrically conductive rubber on the basis of tyre regenerate and conductive carbon black (OMCARB CH85) is developed. It is shown that an increase in conductive carbon black concentration leads to an increase in tensile strength and Shore A hardness of the tyre regenerate. However, due to insufficient dispersion of carbon black, a decrease in relative elongation and resistance to abrasive wear is observed. A study of volume resistivity showed that the obtained rubbers are semiconductor materials. Dependence of specific resistance on temperature in a range from 10 to 80°C is constructed. It is shown that the effect of positive thermal coefficient is observed in all obtained samples.
Volumetric Energy Density of Deformation in Inhomogeneous Media as Criterion for Evaluating Behavior of Material Under Extreme Operating Conditions
Authors: Noev I I , Kirikova N V 
Published: March 2021

Abstract
The present paper solves a problem of determining and numerical modeling of one of the most important local elastic characteristics - the volumetric density of deformation energy - in dispersion-filled composite materials having different densities of placing spherical inclusions in different directions. Prediction of values of said energy characteristic in a separate element of inhomogeneity depending on composition, structure, geometric shape and concentration of components, as well as type and magnitude of mechanical (or temperature) impact allows considering its redistribution in non-homogeneous medium, which has a perspective of its application for creation of modern composite materials of working structural elements in the Arctic zone.
Analysis of the Effect of Deformations on the Accuracy of Advanced Engineering Products
Authors: Yamnikov A S , Matveev I A , Rodionova E N 
Published: March 2021

Abstract
In the manufacture of thin-walled special products, errors in the profile of the finished surfaces usually appear, even if all known recommendations and the technological process are followed. In many cases, this is due to the manifestations of the transfer of manufacturing errors, through the distribution of residual stresses generated in the operation of obtaining a workpiece. According to the theory of technological inheritance of errors, when the allowance is removed from the machined surface, stress distribution in the workpiece also occurs, and this can lead to distortion of the shape of the base surface when the product is unfastened. To clarify this hypothesis, a number of experiments were made in production, in which both the processed and the base surfaces of the workpiece were investigated. The results showed that immediately after processing, the error in the profile of the processed surface at the point of fixation tends to zero, and during the fixing, errors occur, and these errors are an order of magnitude smaller than before processing. At the maximum distance from the attachment point, the picture changes: after processing, there are minor profile errors, which disappear after the attachment. The assumption about the distortion of the shape of the base surface relative to the initial one was confirmed. The angular position of the errors relative to the initial one has changed, and the size has also decreased by 0.02 mm.
Mechanical Behavior of a Carbon Fiber Composite Material Reinforced with Titanium Nickelide Wire
Authors: Gusev D , Lukina E , Vinogradov R 
Published: March 2021

Abstract
A composite material of a carbon fiber matrix and reinforcing elements in the form of a wire made of titanium nickelide (PC-SMA) has been studied. The obtained PC-SMA material demonstrated improved elastic and strength characteristics compared to those of traditional carbon fiber composite material upon static three-point bending tests.
Numerical Method for Impulse Noise Calculation with Diffuse Sound Reflection
Authors: Antonov A I , Ledenev V I , Shubin I L 
Published: March 2021

Abstract
Among the noises occurring in industrial buildings, the impulsive noise affects the human body most detrimentally. Since the impulse noise is not constant in time, when choosing and designing means of reducing it, the changes of spatial-temporal characteristics of sound energy should be calculated after emission by a source of sound pulses. In order to assess the energy characteristics of impulse noise, the article proposed a calculation method based on the ideas of the diffuse character of sound reflection from fencing. Developing the method, a statistical energy model was used, which describes the distribution of reflected energy in closed air volumes in time and space. A direct difference method is proposed to implement the computational model. The principles of the construction of the calculation method are stated and its accuracy is estimated. The assessment of accuracy was carried out by comparative analysis of the calculated and experimental data obtained in the buildings of complex geometric shapes under the action of a pulsed noise source in them. It is established that the calculated decreases of sound pressure levels in time at the calculated points are in good agreement with the experimentally determined decreases, and the error in the calculation of the levels does not exceed 2-3 dB. The obtained accuracy of the calculations is sufficient for the design of building-acoustic means of impulse noise reducing. The method allows making calculations in rooms with any complex space-planning parameters.
Test Results for Ventilation Units
Authors: Mozgova A S , Shchennikova T V 
Published: March 2021

Abstract
The article presents the findings of the tests conducted for the forced air heating unit of a supply ventilation system. The supply air system is designed to feed clean air into the industrial facility of the oil-gas field of the Yamalo-Nenets Autonomous District. The tests were performed in five modes at the ambient air temperatures of -5, -10, -15, -20, -25 °C. The mode throughout the tests was steady, i.e. the temperatures of water and air remained unchanged within 30 minutes before the tests. Since the capacity of the heater unit was proved to be 24 - 41.5% according to the test results, recommendations were made to improve the capacity. With the said measures having been taken, control measurements of test parameters were carried out, the actual U-value was calculated and the capacity of the heater unit was determined. The performed work is relevant in view of theoretical and practical significance for engineers and employees of industrial enterprises servicing the ventilation systems.
Conceptual Designs of Kinetic Facade Systems
Authors: Karaseva L V , Cherchaga O A 
Published: March 2021

Abstract
To make buildings more energy-efficient, reduce harmful atmospheric emissions, improve the quality of the indoor environment, researchers from several countries have designed (and in some cases, made) conceptual kinetic facades. These have different designs, materials, and control methods. Kinetic facades as an architectural solution are still at infancy in Russia for several reasons. This paper presents the concept of a building featuring kinetic facades for a city in the south of Russia. The appeal of such innovative shading systems comes from extreme exposure to sunlight during the hot seasons, which overheats the indoors, necessitates expensive air conditioning, and creates luminous discomfort. The paper presents the kinetic facade parameters calculated with adjustment for solar geometry and the orientation of the facade. Computer simulations of two facade designs prove both effective for shielding.
Calculation of Shallow Foundation Settlement Taking into Account Lateral Expansion of Soil
Authors: Hiep Nguyen Huy , Hung Dam Huu , Trung Dinh Quang 
Published: March 2021

Abstract
Nowadays the prediction of the settlement of shallow foundation is almost carried out by using the result of the oedometer test, in which the lateral expansion of soil mass is excluded. Geotechnical engineering software, such as Plaxis, Geostudio, Flac, Midas-GTS-NX, etc, are capable of solving most geotechnical problems, taking into account the lateral expansion of soil mass. The comparison between the result procured when using the classically analytical method and the result obtained with the help of the geotechnical engineering software show us an enormous divergence. It can be explained by the difference in approaches of solving the question between numerical method and analytical method, in which the effect of lateral expansion of soil mass is neglected. Therefore, the authors suggest a method to improve the prediction of settlement basing on the studies of Russian scientists in the 1960s, taking into account the effect of lateral expansion of soil mass below the shallow foundation. The result of the article can be considered to predict the long-term, short-term settlement as well as the settlement at any moment of soil consolidation with the acceptable difference when comparing with the results given from the nowaday geotechnical engineering software.
Experimental Studies of the Elastic-Dissipative Properties of Structural Materials and the Calculation of Sound Insulation of Building Partitions Based on Refined Characteristics by the SEA Method
Authors: Ovsyannikov S N , Leliuga O V , Makhmudov U A 
Published: March 2021

Abstract
An analytical solution to the problem of sound and vibration transmission through structures, taking into account the energy exchange with adjacent structures, requires determination of the elastic-dissipative properties of structural materials: the elastic modulus and the loss factor. In this work, the parameters of the elastic modulus and the loss factor of three known building materials are investigated and experimentally established in comparison with previously obtained data of other authors. For the automation and accuracy of measuring the internal loss factor, a new measurement technique was transferred using Zetlab software and digital equipment. The calculation of sound insulation of a single-layer enclosing structure is performed based on the method of statistical energy analysis (SEA) using the measured data of the elastic modulus and loss factor. In order to determine the reliability of the data obtained for the elastic modulus and the coefficient of internal loss of structural materials, a comparison was made of the values of sound insulation of a single-layer panel made of gypsum fiber board, obtained by means of experimental research, using the calculated values of sound insulation calculated using the elastic modulus and the coefficient of internal losses from literature sources and using the calculated sound insulation values calculated using the measured values of the modulus of elasticity and the internal loss factor.
Temperature and Humidity Regime of Roof Space in Buildings with Glass Roofs
Authors: Verkhovsky A , Konstantinov A , Nikonova E 
Published: March 2021

Abstract
The paper analyzes the temperature and humidity conditions of the roof space of buildings with translucent roofs in the winter period of operation. The work is based on the generalization of data from a number of field observations and monitoring of translucent roofs of atrium buildings in Moscow. It is established that the temperature and humidity regime of the sub-roof space of atrium buildings with translucent roofs in the winter period of operation has a significant impact on the load-bearing capacity and durability of the translucent filling of coatings (insulated glass units), as well as snow loads on translucent roofs. At the same time, an analysis of existing approaches to the design and calculation of translucent roofs atrium buildings has shown that the issue considered in this work is often not taken into account when assigning their design solutions, which further complicates their normal operation. It is established that when performing strength calculations of roof insulated glass units it is necessary to take into account the design conditions of the transitional spring-winter period, which is characterized by low outdoor temperatures and high solar activity. The thermal regime of translucent roofs of atrium buildings also has a significant impact on the formation of snow cover on similar structures, which is manifested in a different nature of the distribution of snow loads on translucent roofs, as well as on the amount of snow loads, which are several times less than the loads on similar deaf insulated roofs.
Standard Modules in Bionic Architecture
Authors: Umorina Zh 
Published: March 2021

Abstract
The article describes the formation of bionic architecture modules through a case study of a standard module by applying methods and criteria of bionic architecture. To achieve the effect of sustainability and harmonization of buildings, and to facilitate the process of construction of bionic architecture objects, a number of methods and criteria have been developed. Bionic architecture is a modern movement based on the environmental approach that involves the latest developments in design and construction contributing to the implementation of challenging architectural ideas aimed at the creation of natural architecture that responds to environmental changes, does not harm the nature, and fits the landscape. The previous articles cover the methods applied in this approach and describe the principles and criteria of bionic architecture.