bluuebunny/crossref_metadata_2025_split huggingface dataset:
Methodological Aspects of Diamond Diagnostics for Solving of Geological Interpretation Problems
Authors: Pakhomova V A , Solyanik V A , Tishkina V B 
Published: April 2021

Abstract
The article reveals the results of the long-term studies for diamond crystals found on the territory of Primorye in placer samples. The crystals’ optical and gemological characteristics, morphology, and the composition of micro inclusions were examined with the microprobe method. Special attention was paid to the study of the photoluminescence spectra of the diamonds, since it is one of the relatively new methods which enables to determine the origin of the diamonds. The rapid development of technologies for the synthetic technical-grade diamonds production has expanded the usage of rough diamonds, including the field of geological exploration. It is widely known that the natural diamonds of technical quality were initially used for making diamond crowns (the end of the XIX century and the beginning of the XX century). Synthetic diamonds are also used to produce crown bits, since the volume of their production is several times higher than the volume of the natural diamonds extraction. The synthetic diamonds properties are similar to those of the natural ones; synthetic diamonds are equal to natural diamonds in abrasive qualities, and the most important thing is that they have a lower processing cost. During the long-term exploitation of drilling crowns, diamond grains may fall out of their seats and be lost. This creates a real risk of natural objects contamination while searching new indigenous diamond deposits. The paper gives an algorithm of research conduction that allows to distinguish between natural and synthetic diamonds, prevent incorrect conclusions and to increase the validity of natural diamond findings in placer deposits.
Trans-Border Agro-Industrial Cluster Formation and Development
Authors: Smirnova E A , Sivash O S , Potekhina E N 
Published: April 2021

Abstract
The article considers the main features of trans-border agro-industrial cluster formation and development. The analysis of the concepts “agro-industrial cluster,” “trans-border agro-industrial cluster” is conducted. The main approaches to its formation and development from regional and national development point of views are analyzed. The assessment of formation competitive agro-industrial clusters potentials is presented. The formation stages of agro-industrial clusters are defined. The formation stages of agro-industrial clusters caused by process peculiarities of trans-border cluster are considered. The formation of competitive agro-industrial clusters should be based on the principles of viable systems modeling. The application of the given model in practice while planning the joint activity of businesses being a part of the trans-border agro-industrial cluster will allow to maximize the profit of the whole cluster and each of its national participants.
Challenges of the Sendai Framework for Disaster Risk Reduction Adaption in Russia
Authors: Goryushina E M 
Published: April 2021

Abstract
The article discusses a number of difficulties associated with adaptation and implementation of the main targets of the Sendai Framework for Disaster Risk Reduction 2015-2030 in Russia. A review of Russia’s responsibilities for the implementation of the PSA shows that they were fully transferred to the Ministry of the Russian Federation for Civil Defense, Emergencies and Elimination of Consequences of Natural Disasters (EMERCOM of the Russian Federation). An audit of existing research on this topic is being carried out, in particular, a massive block of foreign and domestic works of scientists and practitioners. An analysis of the documents of the electronic fund of legal and regulatory documents of various governmental bodies directly or indirectly involved in the adaptation of the Sendai Framework for Disaster Risk Reduction also was carried out. It was concluded that there is no uniform informing of the population within the EMERCOM system of the Russian Federation in southern Russia despite a functioning system for monitoring and forecasting emergencies in Russia based on Ministry of Emergency Situations and Roshydromet.
Research of Mixed Carbon Sorbents for Removal of Oil Products from Water and Soil for Preservation of Environmental Infrastructure
Authors: Rogovskii I L , Kalivoshko O M , Yu Maksimovich K , Yu Maksimovich E 
Published: April 2021

Abstract
The article presents the results of studies on the study of technologies for obtaining carbon sorbents from by-products of agriculture, woodworking industry and utilities under the influence of low-temperature one-stage carbonization, as well as structural, physicochemical, absorbing properties of mixed carbon-carbon and carbon-mineral sorbents and their effectiveness and economic feasibility in removing petroleum products from the environment and preserving its infrastructure. Oil consumption and absorption capacity of petroleum products of the mixture of pine sawdust carbonate: expanded graphite, at a ratio of 50:50%, 2.5-3.0 times higher than the sawdust carbonate. Its use is the most promising and cost-effective in removing petroleum products from the environment and preserving environmental infrastructure. The obtained data on influence of the qualitative composition of mixed materials on their sorption capacity in relation to oil and oil products allow us to suggest the feasibility of using carbon-carbon materials as effective sorbents of oil products from water and soil, and carbon-mineral, for example, as effective barriers to preventing the migration of oil and petroleum products into groundwater. Carbon-carbon materials should be used as effective sorbents to remove petroleum products from the water surface and soil, and carbon-mineral as effective barriers to prevent the migration of oil and petroleum products into groundwater.
Change of Technical Condition and Productivity of Grain Harvesters Depending on Term of Operation
Authors: Rogovskii I L , Titova L L , Troyanovskaya I P , Voinash S A , Sokolova V A 
Published: April 2021

Abstract
The regularities of change of technical condition of combine harvester Slavutich KZC-9F depending on service life are determined. It is determined that after the second year of operation, the readiness factors decrease in one season by 0.044 or 5.2%, and the recovery factors increase, respectively, their productivity decreases.Within the normative costs for overhaul repairs of combines and maintenance of their operability during the harvest after the second season of operation, there is an annual decrease in the readiness factor by 0.036.Analysis of rate of change of indicator of selective assessment of the readiness factor allows us to conclude that the service life of the main units, systems, mechanisms of combines is exhausted by the service life of five to six years and a total output of 1200-1400 hours with an average output for the season of 200-280 hours.If the duration of downtime to eliminate failures after the third year of operation changes to a maximum of 22%, the recovery rate increases by 35%.The productivity of the combine harvesters Slavutich KZC-9F increases with increasing service life due to a decrease in the readiness factor. A decrease in the readiness factor by 0.01 causes a decrease in the productivity of the combine by 21.2 tons/season.
Effect of Clay and Zeolite on Cd Migration in Soil-Plant Systems on Various Types of Natural Meadows
Authors: Romanenko A A 
Published: April 2021

Abstract
Nowadays, the special focus is placed on heavy metals. It is explained by the scope of their release into the environment and high toxicity. Moreover, heavy metals are able to enter into biological migration chains and, while entering into a body, affect it causing various types of mutations. Therefore, the search for measures to limit migration of heavy metals in various parts of the biological chain leading to the human has a great significance. The purpose of this paper was to study the effect of local clay and zeolite in the Khotynetskoe quarry of the Orel Region on Cd migration in the soil-plant system on natural meadows. To assess migrations, absorption indices were used that were calculated as the relation of average element contents values in plants (hay) to average values in the soil. During the studies it was found that not only applied ameliorates (clay, zeolite) but also their number affects Cd migration in the soil-plant system (hay).
The LNG Technology for the Development of the Arctic Gas Fields
Authors: Lunkova L G , Melnikov G S , Gulkova S G , Nikitina A N , Gulkov A N 
Published: April 2021

AbstractThe development of the Arctic offshore fields has difficulties today. The harsh climate and lack of infrastructure makes us look for rational ways to resolve the issue of hydrocarbon production in this place. One of the solutions is the construction of a floating LNG plant which can be operated in Arctic conditions. According to the experience of Arctic projects, a technology has been developed that can be helped with the implementation of projects both on the Arctic shelf and onshore. The technology, based on the nitrogen cycle, will be provided the highest liquefaction rate, a compact refrigeration unit with acceptable parameters for plant sea operation, low CAPEX and OPEX and safety at the production facility.
Analysis of the Concept of Human Factor Management in Labor Protection Management Systems (on the Example of Construction Organizations)
Authors: Agoshkov A , Kurochkin P 
Published: April 2021

Abstract
The article analyzes the concept of “human factor”, considers the characteristics of the human factor and the mechanisms for implementing the chain of undesirable events generated by the influence of the human factor on the production and technological process, presents the mechanism for implementing the negative impact of the human factor in decision-making in the field of labor protection, also the development of a chain of negative phenomena. It is shown that the effective functioning of OSH management systems in construction organizations can be ensured by an effective risk management system, the main link of which, in turn, is the education system for workers, which considers the continuous training of a person on safety and labor protection at all stages of his professional growth, education and training.
Assessment of the Level of Legionella Contamination in the Water Systems of the Metropolitan Area
Authors: Kahorova H K , Sambrano G S K , Glebov V V , Kalero E V K 
Published: April 2021

Abstract
The results of a study of the level of Legionella contamination in the water systems of the Metropolitan metropolis are presented. The study of biological contamination of Legionella pneumophila in water bodies of Moscow (Central administrative district) for social purposes (swimming pools, Jacuzzi, boiler room, fountain, and cooling water for cooling towers) revealed the occurrence of the studied species from 7% to 20%. The most frequent occurrence of Legionella pneumophila was found in the Central water supply of the city (CAO of Moscow), which was 36%. For the control and reduction of the activity of pathogens as Legionella pneumophila in water systems of public facilities the city needs to monitor the temperature changes in water supply in the building (hot water should be at a temperature higher than 60 °C and cold below 20 °C). It is also important to use the filters in the taps and showers and to carry out the ionization of water.
Formation of a Tool Base for Studying the Technological Properties of Fibrous Materials
Authors: Sheromova I A , Starkova G P , Starkov S V 
Published: April 2021

Abstract
The object of the study is the characteristics of fibrous materials’ technological properties, ensuring the preservation of their appearance and integrity, and the subject is instrumental methods for determining the thread slippage and falling out of textile fabrics. The object of the study is the characteristics of the technological properties of fibrous materials, ensuring the preservation of their appearance and integrity, and the subject is instrumental methods for assessing the resistance to thread slippage and the resistance to thread falling out of textile fabrics. The purpose of the work is to develop express methods for evaluating the considered characteristics of technological properties, providing increased accuracy and objectivity of the estimated data and the possibility of forming an electronic database of material properties characteristics. To achieve this purpose, the tasks of an analytical, methodological and technical nature has been solved. The result of the development is new patentable methods for determining the resistance to thread slippage and falling out in fiber materials. The developed methods for assessing technological properties, as well as technical devices for their implementation, are intended to determine the parameters of the resistance to thread slippage and falling out in the production and processing of different fibrous materials. The technical solution of the device for evaluating the resistance to thread slippage provides the possibility of visual optical scanning of the position of the device working parts, thereby achieving increased accuracy of the evaluation result. The technical device for evaluating the resistance to thread falling out makes it possible to measure the applied force at a fixed moment of falling technological resistance due to the disappearance of friction between the threads of the fabric. The developed methods belong to the class of express methods and provide the ability to automatically generate an electronic database of material properties. Testing of the proposed solutions was carried out by comparing the estimates obtained using the developed methods and standardized methods and showed sufficient accuracy and the possibility of practical application of the developed methods.
Research of New Thermoelectric Materials Based on Multicomponent Semiconductor Compounds
Authors: Matukhin V L , Shulgin D A , Schmidt E V 
Published: April 2021

Abstract
This paper presents the results of studies of new thermoelectric materials, obtained on the basis of multicomponent semiconductor compounds with a crystal structure of chalcopyrite and delafossite, by methods of nuclear magnetic resonance in a local field (63.65Cu NMR) and nuclear quadrupole resonance (63.65Cu NQR). The values of local magnetic fields at the location of the resonant copper nuclei and the parameters of nuclear quadrupole interactions in chalcopyrite (CuFeS2) and copper aluminate (CuAlO2) are determined. The search for new thermoelectric materials is caused by the low operating efficiency of industrial thermoelectric converters based on bismuth and lead tellurides, which have been used for half a century.
Reliability of Quality of Dry Building Mixtures
Authors: Loganina V I 
Published: April 2021

Abstract
Information about the results of calculating the quality assurance of dry building mixes, based on the requirements of regulatory documents, is provided. An example of calculating the reliability of quality control of raw materials, operational and acceptance control is provided. It is shown that the normative security of the quality of dry construction mixtures is 0.9447957, which implies a probability of a defect 5.52%. To ensure a higher level of dry building mixtures quality, the application of the six sigma methodology is proposed.
Clogging Model for Coarse and Fine Filtering Cloths of Filtering Cylindrical Elements, Preventing Sedimentation of Mechanical Impurities in Their Gap
Authors: Usachev A P , Shuraits A L , Pikalov A A 
Published: April 2021

Abstract
In this paper we propose a method for preventing sedimentation of solid particles in the lower part of the gap between filtering cylindrical elements of coarse and fine purification by increasing the size of the meshes and total thickness of the first downstream gas flow layers of the fine filtering element in excess of the maximum diameter of solid particles. Experimental corroboration for the proposed method showed absence of solid particles’ sedimentation in the lower part of the gap between filtering cylindrical elements of coarse and fine purification and clogging of their meshes. As a result of the experiments, we found that the maximum sedimentation of mechanical impurities inside the first screens of the fine filtering cloth is achieved when their meshes’ size and screens’ thickness are, respectively, equal to three and two and a half maximum diameters of a solid particle. We developed a mathematical model that describes the clogging dynamics of filtering elements, where pressure losses in the first section with constant mesh sizes of all screens and in the second section with a sequential decrease in mesh sizes have different clogging rates and therefore are calculated separately from each other. The clogging process at each section of the multilayer filter cloth is represented as a successive decrease in the effective screening area of the screen meshes. The mathematical model makes it possible to prevent the sedimentation of mechanical impurities in the gap between gas filter elements of coarse and fine purification and allows to analytically determine the clogging degree at any time of operation, depending on the pressure losses’ values.
Increasing the Corrosion Resistance of the Material of Oil and Gas Equipment in Water-Salt Solutions by Changing the Electrochemical Parameters
Authors: Yu Pechenkina M , Latypov O R , Bugai D E 
Published: April 2021

Abstract
The high aggressiveness of process liquids associated with the presence of dissolved gases, mechanical impurities, salt ions, mineral acids and bases in them contributes to the destruction of oil and gas equipment. The main way to increase the corrosion resistance of the material of oil and gas equipment under the action of acidic components is the injection of a chemical reagent - a neutralizer. To study the effect of an electric field on production media, a method has been developed to control the electrochemical parameters of these media. According to the method, the flow of the medium is processed in a special unit by an electric field, which helps to separate the liquid into two oppositely charged flows - anolyte and catholyte. In this work, the study made it possible to establish the effect of catholyte on the kinetics of corrosion, and also revealed the dependence of the corrosion rate of carbon steel 09G2S on the concentration of the reagent alkali and catholyte at different pH values. A comparative assessment of the use of the most effective concentration of catholyte to increase the corrosion resistance of the material has been carried out.
Competitiveness Economic Assessment of Russian Natural Gas and Electricity Supplies for China under Inter-Fuel Competition
Authors: Elyakova I D , Zhao Z , Pakhomov A A , Nikolaeva I V , Elyakov A L 
Published: April 2021

Abstract
Calculations to assess the effectiveness of inter-fuel competition between natural gas, coal and electricity for the production and consumption of thermal energy in China are presented in the article. The analysis of electrical capacity, the structure of the electrical balance, and the dynamics of production and consumption of energy resources (electric and thermal energy, coal, gas) is conducted. Environmental problems due to carbon dioxide emissions at coal-fired power plants in China are revealed. The advantages of using electricity for electric heating for Russia and China are outlined, and the efficiency of the prospects for exporting renewable (nonpolluting) electricity that is generated after the construction of a cascade of hydroelectric power plants in Southern Yakutia for electric heating is evaluated. Effective mechanisms of attraction, formation and use of Russian and foreign investments for projects of construction of HPP cascades with the expected efficiency of invested funds by public and private investors for both countries are proposed.
Effect of application of organomineral fertilizers
Authors: Orekhovskaya A A , Klyosov D N 
Published: April 2021

Abstract
The article deals with the problems of increasing soil fertility and crop yields, as well as the utilization of livestock runoff of enterprises. A new organomineral fertilizer was developed, and its effectiveness was studied in the field on typical Chernozem and winter wheat. As a result of research, it was found that the proposed organomineral fertilizer has a positive effect on soil fertility, the excess in relation to the control was: nitrate nitrogen – 1.8 times, mobile phosphorus – 2.2, exchange potassium – 1.3. The increase in yield relative to the control from the use of organomineral fertilizer was 0.99 ton/ha (76 %).
Dairy goats productivity using the probiotic preparation “Plantarum” in the diet
Authors: Funk I A , Vladimirov N I , Kravchenko A P , Dorofeev R V , Grebenshchikova A V 
Published: April 2021

Abstract
The influence of the experimental probiotic “Plantarum” on the productive and some exterior-constitutional features of dairy Saanen breed goats was studied. The preparation was developed in the microbiology laboratory of milk and dairy products of the department “Siberian Research Institute for Cheese Making” of the Federal State Budgetary Scientific Institution “Federal Altai Scientific Center of Agrobiotechnology” (FSBSI FASCA). The composition of the preparation includes pure cultures of probiotic strains of lactobacilli and propionic acid bacteria from the “Siberian collection of microorganisms”. The probiotic preparation in liquid form was introduced into concentrated feed (oats). The positive effect of the use of the probiotic “Plantarum” on the average daily milk yield of the experimental groups of fully developed (assessed by the exterior) pregnant female goats was established. A significant increase in milk yield was observed in the second and third groups by 1.66% (p < 0.05) and 3.27% (p < 0.05), respectively. With an increase in the average daily milk yield, the main physical and chemical parameters of milk (mass fraction of fat, mass fraction of protein) of the experimental groups did not decrease. There was a tendency to improve the safety of young animals in the second and third groups with an increase in the probiotic dose. At this stage of the work, the optimal dose with the maximum positive effect of introducing the probiotic preparation into the diet of experimental animals (0.8 ml/kg of body weight per day) was established. In this connection, it is necessary to conduct an additional experiment with an increase in the dose of probiotic administration when feeding it to experimental animals.
Diagnosis of hepatopathy in Holstein cattle with metabolic disorders
Authors: Kalugniy I I , Markova D S , Yashin A V , Prusakov A V , Ponamarev V S , Andreeva N L 
Published: April 2021

Abstract
This article is devoted to the pathologies of the hepatobiliary system in highly productive imported Holstein cattle against the background of metabolic disorders. The basic principles of diagnostics of hepatopathies, which include a biochemical blood test and ultrasonographic studies of the liver and gallbladder in the studied animals, are considered. The dynamics of changes in the parameters of alanine aminotransferase, aspartate aminotransferase and total bilirubin in highly productive cattle, depending on the physiological state of animals, was analyzed, as well as the main ultrasonographic changes in the liver of cows with metabolic disorders.
Development and application of new methods of correction and prevention of metabolic diseases in Holstein cattle
Authors: Stepanov I S , Kalugniy I I , Markova D S , Yashin A V , Prusakov A V , Ponamarev V S , Lunegov A M 
Published: April 2021

Abstract
The article presents data on the periods and main reasons for the retirement of highly productive Holstein cattle at dairy farms, and offers the production of improved therapeutic and preventive measures for metabolic disorders in cows.