bluuebunny/crossref_metadata_2025_split huggingface dataset:
Morphodynamic conditions of particle size distribution of beach sediments of Coastal Area of Karadag Natural Reserve
Authors: Drygval A V , Stanis E V , Drygval P V , Latushkina E A , Buldovich N S 
Published: August 2020

Abstract
The article presents the results of studying particle size distribution of sediments in the beach areas of the Karadag coastal area of the Crimean peninsula. In the framework of this study, this area is considered as a lithodynamic system. The paper describes the connection between the granulometric structure of sediments and external processes that affect this system, which is an important indicator of response of the condition of a coastline to dynamic environmental conditions. It is established that the wave processes, exogenous geological processes (mainly of a gravitational nature), abrasion of cliff and bench result in the transportation and accumulation of beach sediments along the coast, as well as determine the peculiarities of their distribution according to particle size distribution. Based on the particle size analysis, the differentiation of beach sediments along the coastline of Karadag is revealed. When calculating the static parameters of the particle size data, the morphodynamic conditions of distribution of sediments in the coastal area are characterized.
Obtaining SiC single crystals, and comparing characteristics of its solid solutions, films, Schottky diodes
Authors: Dadashev R H , Altukhov V I , Sankin A V , Sysoev D K , Elimkhanov D Z , Gudaev M-A A , Uspazhiev R T 
Published: August 2020

Abstract
The main methods for producing 4H-SiC single crystals and films of its solid solutions are considered. A new technique for producing single crystals of SiC polytypes is described. A new nonlinear model of the Schottky barrier height (BS) has been developed, and the current-voltage characteristics of Schottky diodes have been obtained, their comparison with the I–V characteristics of silicon-based diodes has been made.
Geoecological monitoring of the Khankal field based on thermal infrared imaging
Authors: Elsunkaeva E V , Ezirbaev T B , Ozdieva T Kh 
Published: August 2020

Abstract
The aim of the work is to review technology for assessing and modeling quality of the environment in industrial zones, the emission of pollutants into the atmosphere based on geographic information systems and environmental modeling taking into account environmental monitoring data. The article presents results obtained by using Geoscan 201 for simultaneous shooting with a Thermophrame-M thermal imager and a visible range camera.
Method of complex interpretation of results well logging (TABC Gintel) for the terrigenous rocks sections Tersko-Sunzhensky petroleum region
Authors: Ezirbayev T B , Khasanov M A , Gatsaeva S S-A 
Published: August 2020

Abstract
A brief overview of the proposed method of processing and interpretation of well logging data in Terrigenous deposits. And also presents results of data well survery with its application using the example terrigenous deposits Tersko-Sunzhensky petroleum region. The findings suggest that the interpretation of the results of the GIS, as described TABC gives accurate information to determine geological characteristics and hydrocarbon saturation Lower Cretaceous terrigenous deposits of the Tersko-Sunzhensky petroleum region.
Cable robot design method using the NX CAD / CAM / CAE system
Authors: Gaponenko E V , Anciferov S I , Kuzmina V S 
Published: August 2020

Abstract
The article describes a method for designing a cable robot used for moving goods under special conditions. It is a parallel structure mechanism using the NX CAD / CAM / CAE system controlled by the Teamcenter PLM system. The mechanism is a rigidly fixed frame connected by tensioned ropes to a platform containing an axial displacement device. The diagram of the device is presented. To develop an electronic-digital model of the robot, the control structure that allowed for designing using the “Top-Down” method was built. The control structure reduces time required to develop a model. The spatial parameters of the device were determined. The product concept was developed.
Average magnetization of quasi-binary solid solution of magnetic and non-magnetic ions
Authors: Gufan A Yu , Gufan Yu M , Klimova E N , Naskalova O V , Osipenko I A 
Published: August 2020

Abstract
The paper describes features of calculating the magnetization of solid solution based on statistical approach on the example of a one-dimensional crystal. Calculations are made in approximation of Weiss effective field. The result shows the error of the third Gilleo hypothesis, which is still widely used to forecast the magnetic properties of solid solutions.
Aggregation properties of p- and n-functionalized calix[4]resorcine in water/oil emulsion in the presence of sulfate reducing desulfobacter bacteria
Authors: Guseva E , Ziganshina M R , Isakov D R , Mendelson V A 
Published: August 2020

Abstract
This paper presents a comparative study of the aggregation properties of P- and N-functionalized calix[4] resorcines in “water/oil emulsion + Desulfobacter culture”. It has been shown that both compounds under study displayed aggregation properties in low concentration range. Nevertheless, their structural features affect the aggregation process. Moreover, the beginning of aggregation of N-functionalized calix[4]resorcine with petroleum hydrocarbons molecules and microorganism cells shifted to lower concentration zones than the one of P-functionalized calix[4]resorcine. However, P-functionalized calix[4]resorcine was characterized by a wider interval at which the structuring of the water/oil emulsion is observed.
Optimization of the regeneration of the sodium-cation ion-exchange filter
Authors: Kalinichenko M Yu , Stojanov N I , Abornev D V , Ovchinnikova S V 
Published: August 2020

Abstract
A new methodology has been developed for determining the volumetric coefficients of internal mass transfer according to the results of an experimental study. The values of volumetric coefficients of internal mass transfer were calculated and their dependence on the technical characteristics of the regeneration process of the sodium-cation exchange filter under dynamic conditions was established. A computer model of the process of regeneration of the sodium-cation exchange filter in nonequilibrium and non-stationary conditions in the form of a computer software package (“Regeneration-1”, “Regeneration-2”), recommended for scientific, design, commissioning and operating organizations, relevant industries. For the first time, the task of optimizing the ion-exchange nonequilibrium regeneration of the sodium-cation exchange filter as a separate stage of the filter cycle was posed and solved. The analytical dependence of optimizing the specific consumption of NaCl salt for nonequilibrium regeneration of the sodium-cation exchange filter as a separate stage of the filter cycle is obtained.
Magnetic-gravity separation in the simulation modeling paradigm
Authors: Nikolaev V G , Biryukov V V , Nikitin R M 
Published: August 2020

Abstract
An interdisciplinary approach to the simulation of magnetic gravity separation is proposed. The approach is based on revealing the laws of motion of mineral particles taking into account their magnetic properties in a computational experiment and establishing the form of an empirical multidimensional function for calculating the deposition rate of aggregated ferromagnetic particles in a multiphase multi-speed process medium. Based on the results, a comparative assessment of the convergence of the obtained deposition kinetics parameters with respect to the practice of applying the classical Stokes formula is given. The possibility of interpreting the fractional separation characteristics of the magnetic-gravity separator using the error function is shown. A method for integrating the simulation model of magnetic-gravity separation into an analytical prototype of the technological enrichment scheme is considered, for which the basic principles of constructing technological schemes for mineral processing are presented and the principles of constructing their simulation models are formulated.
Mineral particle disintegration model
Authors: Oleinik A G , Biryukov V V 
Published: August 2020

Abstract
The study proposes mathematical model for reducing the size of mineral particles in crushing and grinding operations, which is a form of the reflected normal Gaussian – Laplace distribution. The study considers the distribution density modification of the mineral particles depending on the magnitude of the energy impact during grinding. Comparison of the results of computational experiments with the results of laboratory studies confirms the possibility of using the proposed model of disintegration of mineral particles in the development of software modules for the operational evaluation for crushing and (or) grinding of mineral raw materials.
Proposal development for the boiler modernization at the Far North enterprise
Authors: Samigullina G Z , Platunova G R 
Published: August 2020

Abstract
The article presents the transfer relevance of the boiler from diesel to natural gas. There is an economic calculation of the efficiency in using a gas-equipped PKN-2 boiler with a GG-1 type burner, as well as the environmental efficiency of modernizing the boiler installation. Place: Novo Energy Services LLC enterprise, the Yamalo-Nenets Autonomous District, the Yurkharovskoye oil and gas condensate field, bush No. 2.
Modification as a method of directed change in the properties of ferro-piezoceramics
Authors: Sadykov Kh A , Shilkina L A , Daudov M R , Verbenko I A , Nagaenko A V , Reznichenko L A 
Published: August 2020

Abstract
Solid-phase synthesis followed by sintering using conventional ceramic technology produced ceramics based on the binary system of solid solutions (Na, Li) NbO3. The influence of superstoichiometric modification with nickel oxide on the internal structure (crystalline, grain) and macroresponses of the analyzed media is established. Based on the analysis of piezoelectric and ferroelastic properties, the prospects of using materials in various electronic devices are shown.
Comparative tests of cements in concrete mixtures of high mobility
Authors: Saidumov M S , Murtazaev S-A U , Alaskhanov A Kh , Nahaev M R , Khadzhiev M R 
Published: August 2020

Abstract
The paper presents the results of comparative tests of imported and local cements in highly mobile concrete mixtures of various classes and brands. It is proved that on the basis of local cement it is possible to obtain concrete of any grades in terms of workability and grades in compressive strength up to B45. Various factors affecting the stability of the composition and properties of the concrete mixture are considered. Recommendations on their use in high strength concrete are proposed.
Possible solutions to problems in the cement industry
Authors: Salamanova M Sh , Aliev S A , Murtazaev S-A U , Saidumov M S , Gabazov I A 
Published: August 2020

Abstract
In this paper, we substantiate approaches to the transition to clinker-free binders and building composites with their use to replace resource-intensive cement, at least in those areas of construction where its high technical functional properties are not needed. The optimal formulations and properties of alkaline activation binders based on mineral powders are revealed and the theoretical foundations of the formation of the structure and strength of cement stone based on an alkaline activator are revealed. The results of the studies are of practical value for the construction industry, as the obtained formulations of clinker-free cements will partially replace expensive and energy-intensive Portland cement in the production of concrete and reinforced concrete structures. This work was carried out as part of research on the implementation of scientific project No. 05.607.21.0320. “The development of technology for new building composites on clinkerless alkaline binders using substandard natural and secondary raw materials” that received support from the Federal target program “Research and development in priority areas for the development of the scientific and technological complex of Russia for 2014–2020”.
Study of changes in strength properties along section thickness of high-strength centrifuged and vibro-centrifuged concrete
Authors: Stelmakh S A , Scherban E M , Korobkin A P , Tkacheva K E , Osadchenko S A , Kadrov A A 
Published: August 2020

Abstract
Improving the efficiency of precast concrete products and structures can be achieved by creating thin-walled products of effective cross-sections from high-strength concrete the formation of which requires application of centrifugal methods of compaction. The paper discusses literature data on the issue of forming the structure of centrifuged concrete by the thickness of the section wall, taking into account different densities of the components of the molded concrete mass under the action of centrifugal forces during mold rotation during concrete compaction at a constant speed. The authors conducted a series of experimental studies to establish the nature of the change in strength properties along the thickness of cross section of products from heavy concrete made by centrifugation and vibrocentrifugation. As a result of experiments, it was found out that the density of samples of centrifuged structures decreases in cross section from the outer layer to the inner one. The greatest values of ultimate strength under axial compression and tension during bending are characterized by the outer layer, the smallest are characterized by the inner layer. The middle layer in terms of strength indicators is close to the average strength of the whole product. A feature of changes in compressive and tensile strength during bending of vibro-centrifuged products and structures compared to centrifuged layers is a smaller difference between the outer and middle layers and a significant difference between the outer and inner layers. It was established that the variability of the structure of high-strength concrete is less pronounced compared to the lower-grade concrete.
Assessment of the geomorphological basis of landscapes of the Crimean Peninsula using geoinformation technologies
Authors: Tabunshchik V A , Kluchkina A A , Petlukova E A , Kalinchyk I V , Galkina M V , Penno M V , Nikiforova A A 
Published: August 2020

Abstract
The goal is, based on modern methods of geoinformatics and geomatics, to assess the landscapes of the Crimean Peninsula for tourism using a set of indicators characterizing the expressiveness of the geomorphological basis: the absolute height, steepness of the slopes, the depth of the relief and the density of the dissection of the relief. Organization and research methods: assessment of the landscapes of the Crimean Peninsula by a set of indicators characterizing the expressiveness of the geomorphological basis was carried out using the Quantum GIS (QGIS) software package by creating a series of maps reflecting the geomorphological characteristics of the relief and their subsequent overlay analysis for each of the landscapes of the Crimean Peninsula. To create maps and obtain indicator values, geoinformation, cartographic, and cartometric research methods were used. The data obtained for each landscape were further processed by statistical methods using the statistical calculation environment R and the Statistica 10 program. Results: the values of the absolute height, slope steepness, depth of the dismemberment of the relief and the density of the dissection of the relief were calculated for each landscape of the Crimean Peninsula. In addition, by implementing statistical methods, zoning of landscapes of the Crimean Peninsula was carried out using a set of indicators characterizing the expressiveness of the geomorphological basis.
Suggestions for improving the organization of underwater search and rescue operations in hard-to-reach areas
Authors: Talirovsky K S , Shidlovsky A L , Lapin A N , Khasikhanov M S , Malaev M D , Dzhankhotov A A , Khamsurkaev Kh I , Butaeva Kh K 
Published: August 2020

Abstract
The inability of vehicles in some cases to deliver lifeguards and equipment to hard-to-reach places has contributed to the development of the idea of using horses in such situations. It would not be difficult for horses to overcome places considered difficult to access, and this work would be done in a much shorter time. In this case, divers would not have to engage in heavy physical labor to carry weights. The developed methods of horse training and rescue training were tested, which confirmed the research of specialists.
Alternative refrigerants with low global warming potential for refrigeration and air-conditioning industries
Authors: Tsvetkov O B , Laptev Yu A , Sharkov A V , Mitropov V V , Fedorov A V 
Published: August 2020

Abstract
Historically the use of natural and ecologically safe refrigerants was a strategy to eliminate environmental problems and avoid uncertainties with synthetic replacement fluids. Since ammonia is toxic, carbon dioxide provide high pressure, and the hydrocarbons are flammable, the general conclusion is often drawn that natural fluids gave safety problems. This paper will describe the possibilities of application as working fluids in refrigeration, heat pumping and organic Rankine cycles of the hydrofluoroolefins (HFOs) as alternative refrigerants with low global warming potential.
Mathematical modeling of the transmission pipeline under the influence of earthquake seismic waves
Authors: Zaripov D M , Khizbullina S F 
Published: August 2020

Abstract
The stress-strain state of an underground transmission pipeline under the action of earthquake seismic waves is considered. The main objective of this study is the construction of a mathematical model with the analytical solution for lower estimation of the influence of earthquake seismic waves on the transmission pipeline. The spectra of the design seismic actions of the earthquake are determined on the basis of parameters of real seismograms of past earthquakes. The generalized functions of seismic impulses are constructed. The transmission pipeline is modeled by a thin bar. Equations of pipeline motion using the Laplace transformation in time are solved, stresses are determined. The numerical example is considered. The results of calculations on the theories of Kirchhoff and Timoshenko are compared. Graphs of stress changes depending on the earthquake’s strength in points are given. The limiting value of the earthquake magnitude resulting in large stresses and deformations is determined. As a result, the transmission pipeline is destroyed.
The prospect of creating of the plant for the production of liquid fuel from coal in territory of Eastern Siberia
Authors: Zott R S , Konyuhov V Yu , Gladkih A M 
Published: August 2020

Abstract
In this work the shortage level of oil and gas is considered. Receiving various products from coal, exceeding prime cost of mineral raw materials in tens of times. The prospect of creation of the plant of receiving synthetic fuel from coal in territories of Eastern Siberia.
On the use of geophysical research data aiming to increase the efficiency impact on the bottomhole zone of wells
Authors: Mukhametshin V V , Kuleshova L S 
Published: August 2020

Abstract
Under the conditions of terrigenous Jurassic deposits in Western Siberia, we conducted a study on the influence of depositsʼ geological structure features, reflected by the results of geophysical surveys of wells on the effectiveness of the impact on the bottomhole zone using the hydrochloric acid composition Aldinol-20. It was established that in predicting the effectiveness of the impact on the bottomhole well zone, it is necessary to use the data of geophysical studies. At the stage of putting the field into development, it is enough to limit this information in the absence of it. The article proposes a technique that allows us to solve the tasks at different stages of development. The technique is based on the use of geological and statistical models and it is built based on using various performance criteria for various amounts of information. It is to be conducted in the conditions of a limited amount of information about deposits due to insufficient volumes of field research of organizational and financial nature, as well as in case of changing the tactics and strategies of enterprises in market conditions.
Development of oil deposits in tectonic conditions
Authors: Salimov F S , Kotenev Yu A , Mukhametshin V Sh , Sultanov Sh Kh , Safiullina A R 
Published: August 2020

Abstract
The paper presents the detailed analysis of structural and tectonic structure of the foundation surface and Jurassic deposits of Western Siberia, which allows identifying complex, small-sized geological objects promising for the detection of small oil deposits, clarifying the location of exploration wells, searching for deposits in subvertical destruction zones in deposits of the middle and lower Jurassic, foundation rocks in territories with already discovered overlying oil deposits. The zones of excessive fissuring, connected, among other things, with the zones of horizontal shear, which made it possible to change the expected contours of existing deposits and to reveal perspective excessive fissuring zones.
Assessment of professional risks in the operation of mud pumps
Authors: Shangareev R R 
Published: August 2020

Abstract
Assessment of professional risks in the performance of basic technological operations in drilling oil and gas wells is today an important scientific and practical task in the field of labor protection. The article discusses the main negative production factors that lead to damage to the health of workers during the operation of the mud pump. To exclude injuries, employees should have information about the main occupational risks in carrying out technological operations and have the competence in labor protection and production safety. The conclusion is drawn on the need for further scientific research in the field of analysis and assessment of professional risks in the drilling of oil and gas wells.
Optimization of the design of the scrubber separator slug catcher
Authors: Suleimanov R I , Khabibullin M Ya 
Published: August 2020

Abstract
The article discusses the equipment of a system for collecting and preparing well products. The equipment is made in the form of a slug catcher separator, the design of which is the product inlet capacity. Its main element is a cyclone-type scrubber with a swirl, in which the product is separated into gas, liquid and impurities. As a result of design optimization, the entrainment coefficient and the degree of product purification are improved.
Influence of complicating factors on the operation of an electric centrifugal pump installation
Authors: Suleimanov R I , Khabibullin M Ya , Suleimanov R I 
Published: August 2020

Abstract
The article analyzes the complicated stock of producing wells equipped with electro-centrifugal pump installations in an oil field. The study identified factors causing complications in oil production. In the course of the study, a complicated well stock was examined, and possible ways to prevent the formation of complications during the operation of oil producing wells were studied. The article presents well performance indicators that reflect the factors that complicate the operation of electric centrifugal pump installations. It developed recommendations to improve the condition of the complicated deposit fund.