bluuebunny/crossref_metadata_2025_split huggingface dataset:
Products Investigation of Contact Interaction of Diamond and a Matrix of Diamond-Metal Composites
Authors: Yakovleva S P , Makharova S N , Vasilyeva M I 
Published: March 2021

Abstract
Since the strength of the filler-matrix boundaries largely determines the properties of composite materials, the study of the interaction between the filler and the matrix is an urgent task for the development of high-performance composites. The purpose of this work is to study the products of contact interaction between the diamond and the matrix material of wear-resistant diamond-metal composites obtained by explosive pressing with subsequent heat treatment. Composites structure: natural diamond powder in a two-component iron-carbon matrix. Structural and phase studies of the diamond-matrix interface were performed using optical microscopy, scanning electron microscopy, and x-ray analysis. It is revealed that a significant factor contributing to the improvement of the performance properties of experimental diamond composites is the formation of a boron-carbide phase at the interfacial boundary with high values of strength and wear resistance. The scientific novelty of the work is due to the fact that the problems connected with a formation and a state of matrix-filler zones of various composite materials are one of the main ones in the field of fundamental research of the crystalline multiphase state of matter. The obtained data can be used in the engineering practice in the development of new composite materials.
Effectiveness Evaluation of Cellar Application with Controlled Temperature Mode in Low-Rise Buildings with Pile Foundations
Authors: Kornilov T A , Nikiforov A Ya 
Published: March 2021

Abstract
Low-rise buildings made of light steel thin-walled structures (LSTS below) in the Arctic regions are considered by thermal protection destruction due to many heat-conducting elements and high air infiltration. Constructive measures have been recommended to increase thermal protection for buildings made of LSTS including thermally insulated cellar with a controlled temperature mode. A comparative assessment of the energy efficiency of the proposed measures has been carried out. A significant temperature improvement on the inner surface of the basement slab was obtained. The energy characteristics improvement of a building made of LSTS is shown in comparison with the indicators of a standard solution.
Membranes from the Material Assuming Nonlinear Elastic Properties if Exposed to Aggressive Environment
Authors: Erastov V V , Erastov A V , Erofeeva I V , Treshev A A , Bobryshev A A , Shafigullin L N 
Published: March 2021

Abstract
The article considers the behavior of a membrane of an incompressible material under the influence of a two-sided diffusion fracture mechanism, which manifests itself in a change in the initial modulus of elasticity. The object of study is incompressible material membrane. The relationship between deformations and displacements was established in the framework of the nonlinear theory of elasticity in accordance with the Karman formalism. For the phenomenological model, the maximum tensile stresses arising in a nonlinear elastic membrane are obtained, depending on the level of aggressiveness of the medium and the intensity of the acting uniformly distributed load. The resulting solution reflects the operation of the membrane, taking into account the accumulation of defects affecting the stress state. Nonlinearity of the results is manifested to a greater extent as defects accumulate.
Research into Antibacterial Activity of Novel Disinfectants Derived from Polyhexamethylene Guanidine Hydrochloride
Authors: Svetlov D A , Svetlova E D , Svetlov D D , Egorova T S , Kontorina N B , Chernyaeva E V , Potokin I L , Krayeva L A , Vildyaeva M V , Erofeeva I V 
Published: March 2021

Abstract
It is common knowledge that microorganisms cause biological damage to structures and facilities within various buildings and constructions. One of the most effective ways to increase the biological resistance of construction and industrial materials is the introduction of biocides into their composition. This article presents the results of research on the inactivation of various types of microorganisms with new disinfectants of the Teflex group derived from polyhexamethylguanidine hydrochloride. In the course of research, it was revealed that the specimens have biocidal (bactericidal), fungicidal and sporicidal activity when tested on bacterial suspensions and contaminated surfaces.
Advanced Methods for Modifying the Properties of Separation Media and Mineral Components for More Efficient Separation of Diamond-Bearing Raw Materials
Authors: Chanturia V A , Dvoichenkova G P , Podkamenny Yu A , Timofeev A S 
Published: March 2021

Abstract
The results of this study proof the effectiveness of combining physical and electrochemical methods to intensify the processing of diamond-bearing ores as shown by:
–recovering more diamonds thanks to the synergistic effects of making the diamond crystal surface more hydrophobic in grease recovery and froth flotation;
–complete recovery of abnormally luminescent crystals thanks to modifying the spectral and kinetic properties of such crystals in separation by X-ray fluorescence;
–lesser use of ferrosilicon thanks to its greater resistance to corrosion induced by interfacing with corrosive water systems.
Rational Design of Effective Antifreeze Additives for Mortars and Concretes
Authors: Tarakanov O V , Erofeev V T , Belyakova E A 
Published: March 2021

Abstract
The principles of designing complex anti-frost organomineral additives for mortars and concretes have been developed. The nature of the influence of the components of additives on the composition of the products of hydration of cement stone is analyzed. The influence of polymineral complex additives used in conjunction with hyperplasticizers on the kinetics of high-strength concrete hardening has been studied.
Research into the Long-Time Strength of Cement Stone with a Modified Structure
Authors: Maksimova I N , Makridin N I , Bulychev A A 
Published: March 2021

Abstract
The problem of a time-dependent gain of a cement dispersed system’s strength remains the focus of both domestic and foreign researchers in terms of its practical significance. To study the above problem, we used non-additive sulfate-resistant Portland cement grade 400 made by Volsk city plant with a normal density of 24 %. 9 series of samples were made from fresh Portland cement. The kinetics of changes in the cement stone’s physical and mechanical properties was observed on series’ samples for 9.5 and 18 years. The paper imparts the values of the cement, water, superplasticizer consumption and compaction ration derived from compacted cement paste after forming test pieces, numerical values of properties in check dates as a result of natural moisture exchange with the environment and drying of test samples to a constant mass at 105°C, as well as the degree of its hydration at the age of 18 years, which was determined by calculation from non-evaporable, that is, chemically bound, water, taking into account that its amount in fully hydrated cement comprises 23% of the cement mass. Changing of the superplasticizer introduction procedure, even with a minimum consumption of S-3, led to a change in the yield value of the cement stone. The experiments targeting to reveal the long-time behavior of a superplasticized cement stone allow us to speak of a clear trend in the influence of SP and its introduction procedure on changes in long-time strength values. However, this is only a trend, since there are many other factors of influence than those discussed in this paper, which testifies to the necessity for a more detailed study of this problem due to its complexity considering the development and application of a new generation superplasticizer and composite binders to construction practice.
Research into the Time Factor in the Formation of Phase Composition of the Cement Stone Structure
Authors: Makridin N I , Maksimova I N , Emelyanov D V , Barabanov D N 
Published: March 2021

Abstract
The challenge of obtaining high-quality concretes rests on the specificity of hydration hardening of a cement binder, during which the introduction of even a small amount of this or that component or a change in the hardening conditions may lead to drastic changes in the structure and properties of cement materials. In order to reveal the nature of the influence of plasticizing additives and their introduction procedure, a set of research efforts targeting microstructure and basic mechanical properties was deployed, including the study of changes of cement stone’s structural and mechanical parameters over a long period of hardening (up to 18 years) and the composition of cement stone’s hydration products. The main variable factors dealt with are: the dosage of SP S-3 and the modifier’s introduction procedure during mixing of cement with water. The paper imparts findings on the kinetics of changes in the content of alite, belite and other hydrosilicates in cement stone, as well as portlandite against the duration of samples’ hardening. It was found that for almost all compositions with S-3, there is a decrease in the intensity of calcite reflections (3.029 Å) compared to the control sample, which speaks of a slight decrease in carbonation processes in the presence of a superplasticizer. When the temperature and humidity conditions of hardening change, especially over a long period, structural changes associated, for example, with the destabilization of hydroaluminate phases, decompression caused by the formation of secondary crystalline hydrates of various densities, and the release of hydrate water can be one of the reasons for changing the strength of cement systems over time. These phenomena were analysed throughout its hardening time lasting up to 18 years.
New Tasks Solved by Means of Instrumental Records of Stations of Engineering Seismometric on Buildings Service
Authors: Lapin V A , Yerzhanov S Y 
Published: March 2021

Abstract
New tasks that can be solved using the network of stations of the engineering-seismometric service of JSC KazRDICA consisting of 12 stations on located on rooftops of buildings are considered. Depending on the type of tasks being solved, all stations are divided into groups (test sites). Building located tectonic faults were collected in separate group. Buildings on one of the sites are equipped with seismic protection systems and a house analogue. The tools for processing instrumental records are analyzed - adjusting the zero line of the accelerogram by the type of correlation function and building the distribution of accelerations on the azimuthal plane. The possibilities of processing instrumental records for a years-long registration interval are analyzed. Focal points of the earthquake in the city have been identified. A criterion is obtained for assessing the influence of a tectonic fault on the reaction of a building. Recommendations are given on the further development of the engineering seismometric service of JSC KazRDICA. The results are of theoretical and practical value.
Calculation Substantiation of the Optimal Anchoring Length of the Working Reinforcement of Precast-Monolithic Piles in the Cryolithozone
Authors: Mestnikov V V , Mestnikova I V , Mestnikov V V 
Published: March 2021

Abstract
The subject of research is the development of rational types of foundations in permafrost. These article is proposed use of prefabricated monolithic piles, providing for a combination of drilling and bored methods of pile foundations. The computational substantiation of the anchoring length of the working reinforcement of precast-monolithic piles under the influence of tangential forces of frost heaving has been carried out. Mathematical modeling of the joint between the prefabricated part of the pile and the monolithic part was carried out in the Ansys software.
Calculation of First-Order Perturbations at Body Motion by Analytical Method
Authors: Petelina V 
Published: March 2021

Abstract
The article is concerned with representation of the first-order disturbances in the rectangular coordinates, which are components of regularized speed and motion time of an investigated body in the form of polynomials on degrees of a certain regularizing variable, the analysis of an arrangement and nature of singular points is carried out, possibility of representation of coordinates and components of motion speed in the form of polynomials is proved. The main result of the article is the development of the method for determining the first-order disturbances in the form of finite polynomials. This representation of rectangular coordinates, of the components of regularized speed was obtained through a series of successive replacements of the independent variable. An algorithm for calculating first-order disturbances in rectangular coordinates, which are components of the speed and time of body motion.
Alternative Sorbents for the Cobalt-Containing Wastewater Treatment
Authors: Fux S L , Devyaterikova S V 
Published: March 2021

Abstract
Electroplating industry cobalt-containing wastewater treatment solutions have been found. We have opted for the reactant method of chemical treatment. We have precipitated cobalt (2+) as cobalt stearate, which we propose to use in lubricants mixed with paraffin, high-pressure polyethylene and ultrafine polytetrafluoroethylene, thus resulting in a material, possessing lower rolling friction coefficient than polytetrafluoroethylene. We have resorted to the ion-exchange method as a means of physico-chemical treatment. This method has made it possible to lower the wastewater cobalt (2+) ion concentration to the MPC h.h..(Maximum Permissible Concentration for Households). We propose the use of waste products of timber-processing (lignin) and power-producing (ash, fly ash) industries as sorbents. The mix of slag, fly ash and hydrolised lignin has been found to be the most efficient cobalt ion sorbent for the sorption method. Upon the sorbent treatment, it can be burnt in a furnace, while the ash can be stored in a sludge collector without any heat treatment.
Analysis of Entropy of Temperature and Salinity Distribution in Subsurface Layer of the Kara Sea Water Area by Geomatics Methods
Authors: Zmerslaya A B , Tabunshchyk V A , Kozlova A T 
Published: March 2021

Abstract
In recent years the nature of the Kara Sea is greatly influenced by human economic activity. It is stipulated mainly by extensive development of the Kara Sea coastline and by huge deposits of hydrocarbons on its shelf. An attempt to estimate the entropy of temperature and salinity distribution in subsurface layer of the Kara Sea water area has been made in this study aided by the newest geoinformational methods of study (Quantum GIS Desktop program complex). The computation and cartographic modeling of this problem show that the greatest values of entropy indices are registered within littoral and shelf regions. It can testify to the high diversity of these water areas and it is necessary that special (nature protection) regimes of nature use should be set up.
Progressive Technologies of Waste Utilization as Drivers of Sustainable Development
Authors: Shershneva E G 
Published: March 2021

Abstract
The article considers technological approaches to solid waste utilization from the perspective of beneficial effects. The waste utilization management is explored in the context of dominant principle of the circular economy: waste should be processed into secondary resources, reducing environmental risks. The author’s novelty is separation of waste processing methods according to the specifics of participation in utilization processes: primary (preparatory stage) and secondary (stage of waste processing). Primary (preliminary) methods are collection and storage without being an active recycling stage. It is emphasized that he waste separate collection is an important condition for creating a responsible “garbage culture” in society. Secondary methods (recycling) are next stage with mechanical, chemical and thermal impact on the waste for processing in order to obtain a useful effect. Recycling methods are represented by progressive technologies: high-temperature pyrolysis with barbotage process, gasification, air- and electro-separation, bio-thermal composting and digital technologies for waste management. It is noted that reducing of landfills, implementation of recycling, and digital methods are pivotal trends in developed countries. Concluded that citizen’s conscientiousness and progressive waste technologies are necessary conditions for the transition to sustainable development.
Safety Culture: Historiography of Notion
Authors: Abiltarova E N 
Published: March 2021

Abstract
This article dwells upon the formation of safety culture. It analyzes the data on the causes of accidents with severe consequences. The author stresses it is crucial to promote knowledge of labor protection and safety culture formation to prevent workplace accidents and occupational diseases. This article presents a literature review on the emergence and development of the notion of safety culture. Some documents from the International Advisory Group for Nuclear Safety of the International Atomic Energy Agency and the International Labor Organization that shed light on the theory of safety culture formation. The paper also presents the formation of safety culture in the context of legal and statutory regulation. The research employs such theoretical research methods as analyzing, filing, and aggregation of international documents, regulatory framework, and academic papers, as well as their classification, comparison, and comparative analysis. The issue of defining the structural components and criteria indices for safety culture remains open for discussion. The results of the research can be used as a theoretical basis for the development of conceptual provisions for the formation of safety culture.
Plastic Waste: Global Impact and Ways to Reduce Environmental Harm
Authors: Shershneva E G 
Published: March 2021

Abstract
The article considers the problem of plastic waste growth in global scale and ways to decline harmful consequences. Dynamics of the volume of non-degradable plastic and the distribution of waste on land and water are analysed. Negative effects of plastic waste on different types of bioresources and human health are identified. In this context, the author presents paradox of “plastic trap”: a contradiction between positive properties of plastic and global problems of its use. Based on literature review, it is shown that the water environment is most heavily polluted, and it can lead to the situation “there is more plastic in a sea than fish”. It is actualized, that to get out of the “plastic trap” it is necessary to combine the efforts of the state, business and society. State regulation of plastic production and consumption, development of recycling technologies and creation of biodegradable plastic analogues are suggested as a key restoring ways. Plastic is a raw material for various technological processes, so efforts are needed to improve the efficiency of its recycling. It is generalized that natural materials as starch, corn, sugar cane, grain husks, algae, chitin and parts of plants can be used for production of biopolymers.
Mechanism of the Taxable Capacity Management in the Regions, Based on the Study of Krasnodar Krai
Authors: Ostovskaya A A , Salabutin A 
Published: March 2021

Abstract
The main foreign approaches to the formation and implementation of state tax policy in the context of their adaptation to national realities are generalized. The system analysis of foreign experience in relation to state tax policy revealed that the most valuable experience in the field of its implementation into the national legislation. It was emphasized that in order to improve the mechanisms of state tax policy, this positive experience can be successfully adapted to the current conditions. This mechanism involves managing the structural relationship of tax potential and social economic potential of the region. The organizational and economic mechanism for managing the tax potential of the region as the most important instrument for implementing state tax policy is a compromise solution to the problems of social economic development of the regions, which allows optimizing inter-budgetary relations, increase tax revenues of the consolidated budget of the region.
Method of Use and Tools of Geographic Information Systems in Subsoil Use
Authors: Dadykin V S , Dadikina O V , Shkaberin V A 
Published: March 2021

Abstract
This article is concerned with the methodology and tooling of applying geoinformation systems according to users of subsurface resources. Currently Rosgeolfond uses various geographic information systems (GIS) that allow accumulating, updating, verifying, and monitoring the geological and economic information used in the decision-making process at the Federal and regional levels. At the same time in recent years solutions of such systems in data maintenance of digital topographic basic principles of standard scale economic sector have increased significantly. Meanwhile the companies which are users of subsurface resources need badly both a methodology for using geoinformation systems in mineral resource management and the availability of similar tools in terms of functionality. The purpose of this article is to develop methods and tools as represented by set of logical stages for the employment of geoinformation systems in subsurface use. The work is carried out with the financial support of the grant of the President of the Russian Federation No. MD-2409.2020.5.
Method of Use GIS Technology in Compiling Passports of the State Cadastre of Deposits
Authors: Dadykin V S , Dadykina O V , Skantsev V M 
Published: March 2021

Abstract
This article discusses the problems of using GIS technologies in compiling passports of the state cadastre of deposits. Currently, modern GIS technologies are quite effectively used to make GIS projects of digital maps for placing forecast resources on solid minerals as cartographic applications for issuing the appropriate balances. Creating the state cadastre passports of deposits could also be automated using GIS technologies. In this regard, forming a methodology for the GIS technology use in compiling the state cadastre passports of deposits is of particular relevance, which determined the purpose of this article. The necessity to integrate the proposed information system with the existing data resources of the Federal Agency on Subsoil Usage and the Russian Geological Fund should also be taken into account. This work was financially supported by the grant of the President of the Russian Federation No. MD-2409.2020.5.
Development of the Concept of Rational Use of Land on the Example of the Penza Region
Authors: Hametov T I , Ponomareva I K , Akifev I V , Pozubenkova E I 
Published: March 2021

Abstract
The article is devoted to the study of the rational use of land, which is exacerbated in connection with the conditions of the diversity of forms of ownership and management on land. Many lands are not used for their intended purpose and the disposal of land from agricultural circulation, as well as due to erosion, waterlogging and other factors, leads to a decrease in the level of land provision of the population. In recent years, the amount of organic and mineral fertilizers introduced into the soil has decreased. Improving the condition of land and increasing the efficiency of their use is a large complex task that requires significant investment, both from the state and from specific land users. The research hypothesis - land management processes are also developing from the classical approach, focused on forest belts, tin ravines, improvement of crop rotation and similar events, modern enterprises partially depart in two directions - either using business planning or using the postulates of strategic management. The authors developed recommendations to improve the efficiency of agricultural land use in the Penza region.