bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Sintering Time on Crystal and Structure of Chlorine-containing Low-titanium Slag Glass-ceramics
Authors: You Hao , Sun Hongjuan , Peng Tongjiang , Li Yao , Zeng Li , Qin Yating 
Published: December 2020

Abstract
Glass-ceramics with akermanite, diopside, spinel and perovskite crystalline phases were prepared by using the direct sintering method and using chlorine-containing low-titanium slag as a raw material. The changes in crystalline phase composition, relative content and microstructure of glass-ceramics sintered at different times were studied. The results suggested crystalline phases remained steady while the relative content of each phase changed significantly. The relative content of akermanite decreased firstly and then increased while those of diopside changed oppositely. The relative content of spinel rose from 6.6% to 9.3% and perovskite stabilized at 10.0-11.1%. In addition, the pore size of glass-ceramics declined firstly and then increased. The optimal microstrure of glass-ceramics were obtained when crystallized at 890 °C for 60 min and sintered at 1185 °C for 60 min. In general, glass-ceramics with compact microstructures could be obtained at appropriate sintering times.
Structure Analysis of Garlic Wastewater Activated Sludge Bacterial Flora
Authors: You Kun , Shen Dongyue , Fu Jinxiang , Bi Dongfang , Li Jie 
Published: December 2020

Abstract
In order to explore the bacterial diversity and bacterial community structure of garlic wastewater activated sludge in SBR reactor, illumina-Miseq high-throughput sequencing technology was used to analyze the bacterial community structure and diversity of garlic wastewater. The results showed that the abundance of bacteria was higher on the whole, but the diversity of bacteria was different among different samples. Bacteroidetes, Proteobacteria, Firmicutes, Actinobacteria are the dominant bacteria phyla, all of which have the function of denitrification and dephosphorization to degrade organic matter, with abundance between 6.3% and 43.72%. The five dominant genera of Macellibacteroides, Petrimonas, Rhodobacter, Fluviicola and Saccharibacteria_generaincertae_sedis in activated sludge have the functions of degrading organic matter and denitrifying, with abundances ranging from 1.81% to 21.48%. The research results can provide reference for the treatment effect of strengthening SBR reactor.
Production automation system for company manufacturing oil country tubular goods
Authors: Krotova S Y , Ovchinnikova E N , Sarapulova T V , Remizova I V 
Published: December 2020

Abstract
This work presents a developments of a single integrated solution for the process automation of oilfield service companies that allows organizing production and management systems in a single information space. The analysis of the main factors and causes that affect the occurrence of production losses, and their consequences. In the scope of this work, algorithms for solving individual automation problems that are interconnected into certain algorithm modules have been developed. The results of the integration analysis of modern ERP automation systems are presented, in particular, their level of adaptation to the stages of the product life cycle, compliance with standards and safety requirements, and the complexity of the transition to an automated system. Possible risks of the implementation of the algorithms were also assessed, describing an applied importance of the development of a single production control algorithm. Further, an evaluation of main advantages and economic effect of the introduction of process control automation system at the company manufacturing oil country tubular goods is presented.
Development of a control system for a rectification column with a neural network adjustment of the flag liquid flow and upper temperature
Authors: Muravyova E A 
Published: December 2020

Abstract
The gas and oil industries are high-tech industries that are based on modern advances in science and technology. This contributed to the development of the control system and the increase in the level of automation of the oil refining process. At a refinery, which is complex production, a process control system plays a key role. There is a need to provide continuous and error-free control, safe and stable operation of the system. One of the perspectives in control systems is neural networks. They can implement any desired process of a non-linear control algorithm with an incomplete, inaccurate description of the control object, and also provide easily implemented adaptation with unstable statistics. This article presents the development of a control system with a neural network adjustment of the reflux fluid flow rate and the top temperature of the column and a comparison with the number of deviations from the norm of the process parameters under the control of the neuroregulator and under the control of the PID controller. Block diagrams of a control system with a neural network controller and a PID controller are compiled. The expediency of using a neural network controller to control the object is substantiated. A mathematical model of the control object was developed taking into account its inherent internal relationships between the parameters of the technological mode and taking into account the influence of external disturbing factors. Processing of the research results was carried out using the software package “MatLab”.
Review of tritium in Bangladesh before commissioning of NPP Rooppur
Authors: Sadhukhan Ramit Kumar , Synzynys B I 
Published: December 2020

Abstract
The comprehensive review article was carried out to present an overview of the tritium radioactivity concentrations in different components of observed freshwater ecosystems, primarily underground water (for drinking) and precipitation in People’s Republic of Bangladesh. Most of the reported data have been obtained using either 3 He in-growth technique which is an indirect method or using direct method with liquid scintillation counter. The results of the radio-ecological monitoring of environment in Bangladesh show that the tritium content in groundwater, precipitation and river water vary from 0-25 TU, 5-10 TU and 5-10 TU respectively. Around proposed Rooppur Nuclear Power Plant site, tritium radionuclide concentration of 6.7-17.6 TU, <25.2 TU, <25.2 TU and 3.4-10.1 TU were obtained for surface water of Padma, bottom sediments, aquatic flora and drinking water respectively. Globally, the natural and technogenic background of tritium is assumed to be 2.2 ± 0.7 Bq/L (18.5 ± 5.9 TU) and 5 Bq/L (42.0 TU) respectively. Henceforth, the investigation authenticated that the tritium content in all samples is below cut-off point that requires intervention. The results obtained during the radio-ecological studies allow for subsequent evaluation of radiation doses and radiological health hazards that organisms/people experience due to the anthropogenic changes of background radiation in the studied regions.
Features of the development of a mathematical model of an electric multipole with memresistive branches for nanoelectronic components of quantum computing systems
Authors: Bondarev A V , Efanov V N 
Published: December 2020

Abstract
The article discusses the features of constructing a mathematical model of a memristor, one of the components of quantum computing systems, in the finite increments of its parameters. A modification of the basic set of elements for the design of nanoelectronic circuits with the addition of a memristor as one of the components is described. As a result of the modification, a mathematical model of an electric multipole with memresistive branches in the finite increments of its parameters is constructed.
Modelling of mass transfer in separation of hydrocarbon mixtures and modernization of industrial columns
Authors: Laptev A G , Lapteva E A , Gilyazov A D 
Published: December 2020

Abstract
A system of differential equations of mass transfer with an interfacial mass source for multicomponent distillation in a column with random and structured packings in the film mode is presented. The interfacial source is associated with the matrix of volumetric mass transfer coefficients as well as a driving force for mass transfer. The diffusion fluxes of mass of components are written in the form of Fick’s law with elements of the matrix of coefficients of molecular diffusion in the gas (vapor) phase. To simplify the mathematical model, one dimensional equations for the diffusion model of the structure of flows in the gas and liquid phases with the interfacial sources and coefficients of back (longitudinal) mixing of gas and liquid flows are used. The Dankwerts boundary conditions are applied to the system of equations. To calculate the back mixing coefficients, experimental data obtained for the selected types of packings are used. When modelling mass transfer in hydrocarbon mixtures consisting of several dozen components, the system of equations for the diffusion models is solved for the key components and fractions of the oil and gas condensate (OGC) mixture stabilization column at an industrial enterprise. A brief description of the technological scheme is given. Scientific and technical solutions are developed to replace obsolete sieve trays in the stabilizer column with a new structured corrugated roll packing having a rough surface. It is found that a packing height of eight meters is sufficient for separating OGC in a given composition range. As a result of implementation of the new packing, the content of isopentane in the stable condensate decreases and its concentration in the broad fraction of light hydrocarbons increases from 9 wt.% to 11.7 wt.%. The implementation of packing in the stabilizer column meets the requirements of the technical specifications.
Testing the software and hardware complex for managing the power supply system of stationary consumers of railways
Authors: Tretyakov E A 
Published: December 2020

Abstract
A prototype of an intelligent electronic device in the form of a software and hardware complex has been developed and tested, which provides identification of modes, automatic maintenance of optimal (quasi-optimal) voltage levels in the distribution network of the controlled area, automatic coordinated control of voltage regulation means and reactive power compensation means, FACTS devices, storage devices, generation, active consumers based on the involved components of the concepts of "virtual power plant" and "Internet of energy", automatic reconfiguration of the electrical network in normal mode. The results of numerical experiments on simulation models and physical measurements at operating facilities of the electric power industry confirm the reliability of the scientific and practical provisions presented in the article.
The use of the basic parameters of water-physical properties of oil-contaminated soils in the technology of the biological remediation stage (Western Siberia)
Authors: Nosova M V , Seredina V P , Rybn A S 
Published: December 2020

Abstract
This report presents the results of field and experimental studies of water-physical properties of soils of oil-contaminated floodplain ecosystems of the mid-taiga subzone of Western Siberia. Features and basic patterns of their change in various contamination zones (epicenter - impact zone) are revealed. The state of water-physical properties of technologically contaminated soils is compared with background counterparts. Recommendations on the use of basic soil-hydrological constants (range of active moisture, wilting moisture, and field moisture capacity) in the technology of phytomelioration are suggested. Study objective: to analyze characteristics of the impact of oil pollution on water-physical properties of alluvial soils and the possibility of using obtained data for the purposes of remediation works.
Geodynamic ranking of hydrocarbon fields by example of South Cis-Ural
Authors: Nesterenko M Yu , Vladov Yu R , Tsviak A V 
Published: December 2020

Abstract
In this paper is presented hydro-geodynamics and geodynamics in hydrocarbon fields by example of the Southern Cis-Urals. Seismicity and geodynamics induced by hydrocarbon production by summarizing the published case studies are considered. Changes in hydro-and gas dynamics affect changes in the geodynamics of the crust. Natural and technogenic changes in subsoil of the Earth Crust are usually entail deformations and tectonic movements of earth’s surface, which is one of the important factors determining environmental changes and requiring attention in geotechnical survey and field development. The method of classification of the geodynamic state of the developed hydrocarbon fields of the oil and gas basin refers to the field of analysis of geophysical processes, its field of application: identification of the geodynamic state of productive strata and developed hydrocarbon fields of the oil and gas basin, identification of dangerous geodynamic processes, selection of a rational mode development of hydrocarbon fields. The predominant field of application is the classification of geodynamic state of the developed hydrocarbon fields of the oil and gas basin.
Study of the acoustic efficiency of a plate silencer of the original design
Authors: Chugunkov D V , Zhuravlev E A , Seyfelmlyukova G A , Fomenko K C 
Published: December 2020

Abstract
Energy facilities are sources of noise impact. One of the most powerful sources of constant noise at such facilities is power boilers and draft machines, which emit noise into the surrounding area from air intakes and chimney mouths. To reduce noise from them, dissipative plate-type silencers are mainly used. In many cases, the installation in gas and air ducts of typical dissipative plate noise silencers consisting of plates with flat sidewalls does not provide the required acoustic efficiency with a limited length of the plates and the requirement for low aerodynamic resistance. In this regard, an urgent direction of scientific research is the development of new approaches to improve the acoustic characteristics of dissipative noise mufflers. The article presents the results of field tests of the acoustic efficiency of a dissipative plate noise muffler, consisting of patented noise suppression elements. The comparison of the obtained efficiency of the muffler from the proposed elements of noise suppression with the efficiency of the known designs of plate mufflers is carried out.
Assessment of prospects and directions of digital transformation of oil and gas companies
Authors: Flaksman A S , Kokurin D I , Khodzhaev D K , Ekaterinovskaya M A , Orusova O V , Vlasov A V 
Published: December 2020

Abstract
The article is devoted to the prospects for digital transformation of oil producing companies using the example of Gazprom Neft PJSC. For this, the article analyzes the current state of digital technologies in industries, as well as an analysis of the risks of potential implementation of digital technologies in various industries. The main technological and economic processes in the company of the oil and gas complex were investigated, taking into account, which the assessment of the possibility of introducing digital technologies into the business processes of the oil and gas company was carried out. In the final part of the article, an assessment of the results of the introduction of digital technologies at the enterprises of the oil production complex is carried out.
Assessment of oil and gas resources of northern Afghanistan and their impact on energy security in the country
Authors: Mehrad Ahmad Tamim , Zvolinski V P , Kapralova D O , Niazmand Milad Ahmad 
Published: December 2020

Abstract
Developing and utilization from hydrocarbon resources of northern Afghanistan is very important for ensuring the energy security and development of the least developed country in Asia. The estimation made by the USGS and Afghanistan geological survey revealed substantial oil and gas resources in the Amu Darya and Afghan-Tajik basins of northern Afghanistan that created an optimistically bright landscape for ensuring the energy availability and development of the country. This study evaluates the Amu Darya and Afghan-Tajik hydrocarbon basins and their development prospective. In 2020, field trips were arranged to Sheberghan and Sar-e-Pul oil and gas fields for collecting information, conducting interviews, and evaluating the infrastructures of oil and gas fields. The findings described that the infrastructures for producing oil and gas are old, poorly maintained, and have limited production capacity. There are serious obstacles, such as security problems, undeveloped infrastructures, and technical issues that are needed to be considered.
Analysis of the requirements for foundry coke
Authors: Ivanova V A 
Published: December 2020

Abstract
Foundry coke is part of the mixture for melting of cast irons in coke oven and coke oven gas furnaces, which make up more than 37% of the domestic fleet of cast iron furnaces. It is obtained by sieving coal coke. Performing the function of fuel and providing the necessary heat, foundry coke has a significant impact on the stability of the melting process and the temperature of the cast iron. The share of energy and fuel in the cost of iron casting is 55-60%, so the reduction in coke consumption is of great importance for the energy efficiency of melting and the cost of castings. The requirements for foundry coke are currently set in the standard GOST 3340-88 “Foundry coke. Technical specifications”, in which five indicators are normalized: mass fraction of total moisture, W_t^r, %; ash content of analytical sample, Ad, %; mass fraction of total sulfur, S_t^d, %; strength according to MIKUM, M40, %; fraction of pieces, less than 40 mm.
Influence of the chemical composition of cast iron on the tem-perature of loss of magnetic properties when heating by high-frequency currents
Authors: Kosareva N.V. , Chesnokova A.A. 
Published: December 2020

Abstract
One of the important tasks of modern materials science concerning technical issues is the need to ensure the surface properties of hardened products. An increase in the resource of machines and an increase in reliability are limited by the wear resistance of their components and assemblies: the less wear of the main rubbing pairs, the longer the service life [1]. For example, according to [1], a piston internal combustion engine accounts for 36-52% of the total number of machine failures. Modern technologies have a large number of hardening methods that can increase almost any characteristic of the structural strength of the material. Surface hardening of parts can be carried out in two ways - by changing (modifying) the state of the surface layer or by coating.
Influence of transportation in railway cars of foundry coke on its quality
Authors: Pobegalova E. O. , Ivanova A. J. 
Published: December 2020

Abstract
The granulometric composition of the bulk density of foundry coke is one of the most important characteristics that determine its consumer properties [1]. In the process of melting cast iron in a cupola, foundry coke has to provide sufficient temperature and drainage capacity. The latter is determined by the size of the foundry coke, the uniformity of its particle size distribution, as well as both “hot” (CSR, %) and “cold” (M40, I40, etc.) strength. The dependence of the strength of coke on the carbon structure, the parameters of the porous structure, size, amount and composition of ash is established [2]. There is data [3] indicating a decrease in the “hot” strength of coke with an increase in the content of basic oxides in the ash: an increase in the SO3 content by 1% reduces the CSR by 20-24%.
Standardization of the new flaw detection material for magnetic powder method non-destructive testing
Authors: Chesnokova A. A. , Ivanova V. A. , Kalaeva S. Z. 
Published: December 2020

Abstract
The level of the current state in the field of information support (IS) of the activities of high-tech enterprises is considered in this paper. The main problems are shown on the way to achieving the required level of IS quality in high-tech enterprises of the country. The need for the formation of a number of standardized requirements for the IS quality of a high-tech enterprise to improve its level is determined. A typical list of requirements for the IS quality is determined and a model of a system for accounting for requirements for the IS quality is developed using the example of Scientific and technological center of unique instrumentation of the Russian Academy of Sciences.
Recommended initial pressure for the correct operation of vibrofuge based on the conducted research
Authors: Krokhmal V V 
Published: December 2020

Abstract
The article presents the operation of vibrofuge test stand. The main research of the stand operation is discussed. The mode of piston motion in gas spring and gas behavior inside the working spring chamber is shown. Based on the research the recommended initial pressure is calculated, which must be set in spring chamber for the correct operation of the test stand.
Forecasting models of agricultural process based on fuzzy time series
Authors: Parfenova V. E. , Bulgakova G. G. , Amagaeva Yu. G. , Evdokimov K. V. , Samorukov V. I. 
Published: December 2020

Abstract
Today, the problem of increasing the validity and accuracy of forecasts based on the analysis of time series under conditions of uncertainty is very important. The models and methods used to predict the dynamics of agricultural processes are built on quantitative information and are implemented as part of a statistical approach. In this approach, time-based forecasting models are constructed on several requirements for the initial data, the main of which are the requirements of comparability, sufficient representativeness to reveal regularity, uniformity, and stability. Only keeping these requirements, uncertainty can be interpreted in terms of randomness and appropriate statistical forecasting methods can be applied. However, the real dynamic processes taking place in agriculture are represented by time series, for which these requirements are rarely feasible, due to the great uncertainty of the factors determining their dynamics. The problem of forecasting such series is particularly relevant for agricultural science and practice. The article touches upon the possibilities of using fuzzy modeling tools to predict the dynamics of processes in the agricultural sector.
Research of social media channels as a digital analytical and planning technology of advertising campaigns
Authors: Isaenko E , Makrinova E , Rozdolskaya I , Matuzenko E , Bozhuk S 
Published: December 2020

Abstract
In Russia social media, in particular instant messengers, have advanced rapidly in recent years. The most popular ones are WhatsApp, Viber, Skype, Telegram. The purpose of this article is to systematize factors of market positioning of social media channels as a digital analytical and planning technology of advertising campaigns. A systematic approach and comparative analysis were used to study this problem. The authors attempted to develop a methodological approach towards analyzing and planning of advertising campaigns in social media based on the analysis of the factors characterizing quantitative parameters of the Internet platform development and its target audience distribution. The proposed approach was tested by the authors for determining the development features of Telegram messenger, analyzing its target audience (users with higher education engaged in science, technique, information technology, etc.) and its promotional product (posts in the form of a native format, etc.). The analysis concluded that Telegram platform is suitable for analyzing and planning of promotion campaigns in any business field.