bluuebunny/crossref_metadata_2025_split huggingface dataset:
Quality Function Deployment and Design Risk Analysis for the Selection and Improvement of FDM 3D Printer
Authors: Zagidullin R , Mitroshkina T , Dmitriev A 
Published: March 2021

Abstract
Currently, the use of additive technologies is becoming relevant instead of traditional production technologies. The market offers a fairly large selection of 3D printers with different designs and kinematics. Each design and kinematics has its own disadvantages and advantages. The article demonstrates various versions of the kinematics of FDM 3D printers, the main units and parts, as well as their impact on the quality of 3D printing of parts. The results of structuring the quality function (QFD) and analysis of the types and consequences of potential inconsistencies (FMEA) of an FDM 3D printer for prototyping and manufacturing parts and assemblies for unmanned aerial vehicles are presented. A qualimetric assessment of the quality of FDM 3D printers with various kinematics design based on the QFD interconnection matrix was carried out. The aim of the study is to analyze the design and kinematics of FDM 3D printers for the manufacture of high-quality parts and assemblies for unmanned aerial vehicles without further post-processing based on the application of the QFD methodology. Based on the results of the study, recommendations and proposals for improving the design of FDM 3D printers were developed.
Justification of the Advantages of Project Financing in the Implementation of the MSW Management System
Authors: Gubernatorov A , Stepanova E 
Published: March 2021

Abstract
The implementation of the reform of the solid municipal waste management system (MSW) consists not only in creating the necessary infrastructure for collecting, transporting, processing, recycling and disposal of MSW, but also the necessary organizational and managerial (territorial schemes for handling MSW, investment programs, the creation of specialized institutions, in particular, the Russian environmental operator, etc.) and financial and economic (tariffs, financial instruments, economic levers, mechanisms for attracting investment) tools. The paper considers the possibilities and advantages of using project financing as a mechanism for attracting private investment in the MSW management system. The conclusions and practical results can be used by the bodies authorized to carry out the reform of the MSW management system, while creating favorable conditions for the development of the project financing mechanism in the MSW management system and improving its effectiveness.
Cadastral Assessment and Challenging Its Results Today in Russia
Authors: Osennyaya A V , Khakhuk B A , Gura D A , Kislitsa N A 
Published: March 2021

Abstract
Today in Russia, one of the main factors in the development of an effective model of the modern economy is an adequate cadastral assessment of land plots and other real estate. However, the problem of improving the procedure for determining it and the system for challenging its results needs to be improved and is becoming increasingly urgent in connection with the introduction of a new real estate tax soon throughout the country, which should replace the land tax and property tax. The article considers the problems of modern system of cadastral evaluation of real estate and the system for challenging its results. It also includes analysis of reports on determination of cadastral cost of real estate in the whole country and more detailed in Moscow, St.-Petersburg, Krasnodar and the Moscow region, presented on the official website of Rosreestr. The results of the study demonstrate the imperfection of the system of cadastral evaluation of real estate and, above all, the methodology of its determination, as evidenced by requests to fix errors in the budget of the organization and overall operation of the system of challenging the cadastral value, serving today is an indicator of the effectiveness of the applied rating models.
Digital Innovation as a Regional Economy Development Factor
Authors: Dolbnya E A , Kozlova O N , Vasilyeva M K , Lyukina A Y 
Published: March 2021

Abstract
The article considers the phenomenon of digital innovation as a factor in the development of the regional economy. Using the example of the Siberian Federal District, the authors found that there is a direct relation between the value of indicators of innovative development of regions and indicators of the development of the digital economy. In addition, the article included a SWOT analysis of the development of digital innovations in the Kemerovo region-Kuzbass, as a raw material region with the potential for development in the sphere of digitalization.
Tools for Managing Business Processes in the Municipal Solid Waste System
Authors: Gubernatorov A , Aleksandrova I 
Published: March 2021

Abstract
The economy of the Russian Federation at the present stage is characterized by an extremely high level of consumption of raw materials and waste generation. This is due to the export-raw material orientation of production, as well as the level of technological development. In this regard, the amount of waste generation and accumulation is steadily increasing. Analysis of current trends has shown that every year, on average, Russians emit about 80 million tons of municipal waste. At the same time, both in Russia and in other countries, the structure of MSW is approximately the same. These are primarily glass, paper, plastics, fabrics and organic products, as well as oversized items such as old furniture, car parts, etc. At first glance, recycling household garbage is a fairly simple and profitable business. Thus, by recycling car tires, you can get rubber coatings that are actively used in the economy, new paper is made from waste paper, and organic garbage is obtained from. The methodology used for creating data or information flow diagrams is described. The relevance of using this technology in modern practice is shown. The practical application of the DFD methodology in modeling a new financing system in the field of solid municipal waste management is presented.
Ecological Assessment of Alluvial Soil Resistance to Anthropogenic Impact
Authors: Stepanova L P , Yelizarov N A , Pisareva A V 
Published: March 2021

Abstract
The article presents studies aimed at establishing the influence of anthropogenic impact on composition and properties of the alluvial soddy soil. Assessment is demonstrated of the degree of damage caused to soils as a result of fertile layer removal and closure. Degree of the alluvial soil fertility indicator alteration is established by the water extract pH value, content of organic matter, level of provision with available forms of phosphorus in connection to violating the stripping and quarrying technology in extraction of construction sand and reclamation of damaged lands. Our studies were conducted on a land plot with soil samples of alluvial soddy soil taken at the depth of 0-20 cm. Rate of decrease was established in the organic matter content in soil layer of 0-20 cm as a result of stripping and quarrying. Studies demonstrated significant alteration in the soil granulometric (grain) composition in the damaged land confirmed by a sharp decrease in the soil aggregate fractions number. Destruction of the alluvial soil fertile layer, and damage to the soil cover during extraction of minerals by the open-pit quarrying method, and, as a consequence, deterioration in its environmental and water protection role, both for natural soils and for soils of river valleys, was proved. Thus, degradation of soil, as a means of agricultural production, is a loss of soil fertility and land productivity; soil degradation, as a historically formed body, is a decrease in its reliability, elasticity and durability. Negative processes are manifested to a varying degree on agricultural lands, which requires the need to assess the levels of impact of factors causing degradation, degree of soil alteration and possibility of their rehabilitation, elaboration of ways to optimize and create an ecologically sustainable land use system.
Geomagnetic Survey for Solving Ecology Problems on Aquatory Seaport with High Level of Electromagnetic Noise (Golden Horn Bay, Peter the Great Gulf, Sea of Japan)
Authors: Bessonova E A , Koptev A A , Zverev S A , Zheldak E M , Petukhov V I 
Published: March 2021

Abstract
The crucial task of geomagnetic survey is detecting of magnetic anomalies coming from local object with ferromagnetic properties on aquatory seaport with high level of electromagnetic noise. We developed magnetic survey and data interpretation procedure which is necessary for expanding level of results authenticity under the conditions of limited size of aquatory and high vessel traffic. We used measuring equipment and software produced in Russia. Results of magnetic anomalies quantitative interpretation certified by side-scanning sonar and diver’s works.
Ways of Recognizing the High Status of the Territory for the Biodiversity Conservation (on the Example of the Ichalkovsky Reserve in the Nizhny Novgorod Region)
Authors: Bakka S V , Yu Kiseleva N , Noskova O S , Schestakova A A , Arefyeva S V 
Published: March 2021

Abstract
The purpose of our study is to consider the possibilities of using different approaches to recognize the significance of the territory for the biodiversity conservation. The Ichalkovsky nature reserve (zakaznik) with an area of 1,442 hectares in the Nizhny Novgorod region was selected for analysis as a botanical and geological object unique for the Russian Plain. The criterion of various rare wildlife species records was used as a leading approach. Analysis of published materials and field research in 2020 allowed us to identify in the studied territory the habitat of 88 wildlife species listed in the Red Data Books of Russia and the Nizhny Novgorod Region. They are very different concerning their taxonomy and biology. This criterion use shows the extremely high conservation value of the Ichalkovsky reserve. The territory under consideration is characterized by high biological diversity and a high degree of biota remained, as well as its weak human disturbance. It is shown that, in accordance with the approaches of international nature conservation programs, the Ichalkovsky reserve has the status of a territory of special nature conservation significance within the Emerald Network of Russia, as well as an Important Bird Area. This territory is the core of the environmental framework of European Russia and meets the criteria for identifying several categories of high conservation value forests. The proposed ways have shown high efficiency. Ichalkovsky reserve is very important to conserve the biodiversity, including at the international level. This natural area should have legal protection adequate to its nature conservation value. Such protection can be provided by the status of a cluster of a national park.
Multifunctional Safety System as a Framework for the Digital Transformation of the Coal Mining Industry
Authors: Nikitenko S M , Goosen E V , Malakhov Yu V , Kizilov S A 
Published: March 2021

Abstract
Accidents related with operation of mining equipment is a serious problem in the extractive industries. The accidents can result in damage and downtime of machinery, or even can lead to injuries and fatalities. These problems seem to become more acute in the modern conditions of Industry 4.0 implementation. This paper focuses on applicability of a multifunctional safety system in opencast coal mining, with regard to features of this method and using digital technologies. The authors emphasize essentiality of a business-model of opencast coal mining to reach the wanted results.The first section in your paper.
Thermal Plasma in Construction Industry
Authors: Shekhovtsov V V , Volokitin O G , Skripnikova N K , Volokitin G G , Semenovykh M A 
Published: March 2021

Abstract
During the global financial crisis, the development of priority industries, including the production of construction materials, is the guarantor of intensive economic recovery in Russia. A number of weaknesses that do not allow using the conventional methods and raw materials sources are identified through the analysis of limitations in the conventional production processes of construction materials and composite coatings. This paper considers the technological alternatives for the plasma-assisted production of materials, coatings and powders. The paper presents the two applications for highly concentrated plasma flows, namely, the production and modification of various construction materials and coatings and the use of nonstandard raw materials, such as industrial wastes from thermal power plants and metallurgical production. These raw materials cannot be used in conventional production processes due to their specific chemical composition and high melting temperatures. Owing to its unique properties, low-temperature plasma provides the modification of complex dispersion systems, in which the particle interaction occurs at subatomic levels providing the formation of materials with enhanced physical and mechanical properties.
Influence of TIG Welding Thermal Cycle on Temperature Distribution and Phase Transformation in Low-cost Titanium Alloy
Authors: Akhonin S V , Yu Belous V , Selin R V , Kostin V A 
Published: March 2021

Abstract
Low-cost β-phase titanium alloys are starting to get a lot of attention and application in aircraft and mechanical engineering. They are effectively hardened by heat treatment and have a strength 10-20% higher than α-alloys. However, during TIG welding of low-cost titanium alloys, difficulties arise due to a change in the structure and the formation of metastable phases in the welded joint. The main criterion for choosing the modes of TIG welding is the optimal interval of the cooling rate in the weld, therefore it is advisable to compare different modes of TIG welding, including the use of pre-heating, by their thermal effect on the weld metal and the heat-affected zone.
Rapeseed Oil is the Base for Biodiesel Fuel
Authors: Zapevalov M V , Sergeev N S , Redreev G V 
Published: March 2021

Abstract
Many countries all over the world including the Russian Federation are carrying out the research devoted to the replacement of mineral fuel to environmentally friendly fuel. One of these types can be biodiesel fuel based on vegetable oils. Any oil can be used for this purpose; however, rapeseed oil fuel seems to be the most rational one. Even in ancient times it was used in lanterns to light the streets, to lubricate metal parts that were in contact with water and steam to prevent them from corrosion. It is currently used in hydraulic systems of tractors and agricultural machines. The aim of the study is to determine the comparative operational parameters of a diesel engine when running on diesel fuel and fuel based on rapeseed oil. Rapeseed oil differs significantly from diesel fuel in viscosity and flash temperature; if diesel viscosity is 4.3 mm2/s, rapeseed oil viscosity is 75.1 mm2/s. The mixture consisting of 75% rapeseed oil and 25% diesel fuel has a viscosity of 36.0 mm2/s, and the density and lower combustion heat are close to diesel fuel parameters. The studies on preparing the rapeseed oil and diesel fuel mixture have been carried out in the South Ural State Agrarian University; they resulted in developing a production line for making the fuel mixture and conducting the comparative tests of the D-240 engine when working on diesel mineral fuel and when working on fuel consisting of a mixture of 75% rapeseed oil and 25% diesel fuel. It has been found that at a nominal frequency of engine crankshaft rotation (2170 rpm) the efficient power of the engine running both on diesel fuel and on a mixture of rapeseed oil and diesel fuel is 53.3 kW. With the same torque of 235 N/m the efficient fuel mixture consumption is only 17 g/kWh more. This gives the reasons for using this mixture as a fuel in a diesel engine in terms of energy parameters.
Environmental Monitoring of Electromagnetic Fields in Residential Areas
Authors: Grafkina M V , Sviridova E Y , Veliyeva E R 
Published: March 2021

Abstract
The increasing consumption of electricity is inextricably linked with the growth of electromagnetic fields in residential areas and an increase in the level of their impact on humans and the environment. In this regard, monitoring and research of electromagnetic pollution is a very urgent task. The paper presents the results of studies of electromagnetic fields in the territories adjacent to overhead power lines and energy enterprises, presents approaches to the development of electromagnetic monitoring (monitoring based on intensimetry, a method for calculating electromagnetic field parameters for pre-construction monitoring), and also gives recommendations on changing the regulatory framework for improving electromagnetic safety and monitoring efficiency.
Biologically Active Substances from Oxidized Lignite of the Itatsky Deposit
Authors: Kolosova M M , Dryomova M S , Filipovich L A , Kondaurova I G 
Published: March 2021

Abstract
Biologically active substances of natural origin are of great interest for agriculture, as their use allows to increase the efficiency of the industry and to obtain environmentally friendly products. The purpose of this work is to determine the biological activity of potassium humates obtained from oxidized brown coal beds of the Itatskoe deposit in the Kansko-Achinsky brown coal basin. Alkaline extraction of potassium humates and study of their biological activity were carried out in laboratories of Kuzbass State Agricultural Academy in 2017-2019. It was found that oxidized brown coals, inferior in their qualities to ordinary ones as fuel, are a promising source of biologically active substances for crop production. The study of biological activity of potassium humates revealed their significant impact on seed germination and morphometric characteristics of cucumber and soybean sprouts. When soaking seeds in solutions of potassium humates with concentrations from 0.001% to 0.1%, small concentrations of humates - 0.001% and 0.005% - had the greatest positive effect on the germination and length of soybean roots, length and weight of roots and cucumber stems.
Geoecological Risk Assessment Methods of Anthropogenic Risks Occurrence in Aridic Territories
Authors: Tatarintsev S A , Barmin A N , Valov M V , Kolchin E A , Shuvaev N S 
Published: March 2021

Abstract
Problems of the territory ecological state monitoring, prediction and mapping constantly remain relevant in conditions of modern urbanization. The space extension of built-up areas, traffic load increase, different types of industrial fields development, manufactures and service industries at the cups of XX-XXI centuries form positive environment for technogenic accidents initiation, consequently, increase technogenic risk level. It leads to the necessity of technogenic influence comprehensive study on natural system components and adversity reveal on the territories. Geoecologic risk assessment method of anthropogenic risks occurrence on the Astrakhan region territory is proposed in this work. Proposed results have a great meaning for management decision-making, directed on the territory safety protection and mitigation from technogenic influence.
Anoplura (Lice) of small mammals in the South Trans-Urals
Authors: Starikov V P , Kravchenko V N 
Published: March 2021

Abstract
For this the research, 2035 individuals of small mammals of 18 species were examined in order to find out the presence of obligate hematophages (Anoplura); from those 984 lice of 5 species were collected. The species composition of Anoplura, the indices of occurrence, infestation and the abundance of Anoplura on the Insectivora and Rodentia were analyzed. There have been noted repeated cases of Anoplura parasitizing the mammals unusual for them, which reflects interspecific contacts of small mammals. The features of the biotopic confinement of the parasite were considered.
Temporal and Spatial Distribution of Surface Sediment and Its Implications in the Yangtze Subaqueous Delta
Authors: Ge Can , Sun Yihao , Huang Zihan , Zhu Yunze 
Published: March 2021

Abstract
Characteristics of sediments vary significantly temporally and spatially in the Yangtze subaqueous delta and adjacent East China Sea shelf due to complicated dynamic conditions. Magnetic properties of sediments are sensitive to hydrodynamics and provenance, and therefore can indicate sediment transportation and deposition. High-resolution surface sediments collected in different seasons and years from the Yangtze subaqueous delta and neighboring East China Sea shelf were subjected to environmental magnetic analyses. In combination with granulometric analysis, this paper discusses temporal and spatial variations of magnetic properties and their implications for indicating sediment transportation, sediment source identification, and hydrodynamic response. The results show that magnetic parameters SIRM and XARM/SIRM suggest sediment transportation path from the Yangtze River into the East China Sea, with majority migrating to the south and southeast and then deposited to the west of 123°E, while a little fine sediment delivered to the northeast in summer. Cluster analysis demonstrates three sedimentation districts according to magnetic properties and particle size in the study area, which represent modern Yangtze sediment, late Pleistocene relict sand, and their mixture, respectively. Temporal-spatial changes in particle size of sediments suggests erosion outside the North Branch in the past few years, while opposite trend of changes on particle size of surface sediment in the adjacent area might reflect different degrees of erosion.
Evaluating the Effectiveness of Regulation Schemes in Improving Navigation Condition of Reservoir Channels
Authors: Lu Yang , Xu Hui , Li Guo-bin , Shang Qian-qian 
Published: March 2021

Abstract
Sedimentation has become a world-wide issue for almost all types of dam reservoirs. The impact of sedimentation on navigation is mainly reflected in the obstruction of navigation channels, usually at reservoir ends. The issue can be partially solved by joint water-sediment regulation during the drawdown period, called “sedimentation-reduction (SR) regulation”. It aims to enhance scour at shoals by increasing the outflow of the reservoir and accelerates the water level decline. In general, the more inflow discharge or lower dam water level, the better scouring effects, although the waste of water for hydropower generation also needs to be considered. In this work, we propose a model to evaluate the effectiveness of SR regulation schemes in improving navigation condition of reservoirs channels. The constraints for successful regulation operation are analysed in details. The navigation benefits are estimated by the increment of sediment transport volume, and the power generation impacts are estimated by the loss of effective water head. The model gives optimal starting dam water level and corresponding inflow discharge. The results were compared with actual regulation parameters of the Three Gorge reservoir. This work can provide guidelines for reservoir sediment management.
Determination and Application of Microscopic Index Rca in Evaluating the Mechanical Properties of Soils
Authors: Xu Riqing , Jiang Jiaqi , Hua Yujiang 
Published: March 2021

Abstract
This paper presents an elaborated discussion on a soil microstructural index: the contact area ratio R
ca, including its determination method and potential applications. Starting from the calculation of 3D porosity, a reliable threshold is obtained by introducing the connection between macro and micro properties of soils. and then the contact area ratio R
ca could be well determined. Next triaxial compression test and SEM test are conducted and combined to investigate the evolution law of the microscopic contact area ratio R
ca during the compression process. Finally, the application value of this micro index in the evaluation of soil mechanical properties is demonstrated by introducing two potential application, which lays the foundation for further research in this field.