bluuebunny/crossref_metadata_2025_split huggingface dataset:
Secondary Changes of Rocks in Zhamanshin Meteorite Crater(Kazakhstan)
Authors: Sergienko E S , Yanson S Yu , Kosterov A A , Kharitonskii P V , Frolov A M 
Published: April 2020

Abstract
Magnetic properties, structure, and phase composition of samples of ferruginous rocks from the Zhamanshin meteorite crater have been investigated. X-ray phase analysis, microscopy and magnetometry have revealed that studied rocks can be considered as a fine-grained polymictic sandstone which undergone significant alteration. All samples appear highly ferruginous, with cement of goethite with small particles of the matrix. Detrital grains are quartz, feldspar, rarely mica, as well as monazite, ilmenite, zircon, and cassiterite in accessory quantities. Inclusions of glass, probably of impact origin, with low silica, high alumina, and high iron content have also been encountered. A characteristic feature of goethite is the presence of Mn and a pronounced zonal structure manifesting itself in an increased Al content. Intergrowths and druses of authigenic magnetite are found in voids and cracks; magnetite however appears completely by iron (hydr)oxides. These observations generally agree with the paleogeographic data, and suggest that the crater and its vicinity experienced significant changes of the redox regime in the post-impact time.
Choice of the Effective Solvent to Remove Paraffin Deposits in Conditions of Abnormally Low Reservoir Temperatures
Authors: Ivanova I K , Semenov M E 
Published: April 2020

Abstract
The results of research on dissolution kinetics of petroleum paraffins and asphaltene-resin-paraffin deposits (ARPD) of the paraffin type in aliphatic, aliphatic-aromatic, and aliphatic-naphthenic-aromatic systems within the temperature range from 10 to 60° C have been discussed. The half-life periods, order of reactions, dissolution rate constants and activiation energy of destruction of paraffins and ARPD have been calculated. Differential scanning calorimetry has been used to study the phase transitions of petroleum and commercial paraffins in aliphatic and mixed hydrocarbon solvents. Based on the conducted research, recommendations for selection of an effective solvent to remove paraffin deposits at low temperatures of reservoirs have been proposed.
E-Waste Management in a Global Digital Economy
Authors: Fayustov A A 
Published: April 2020

Abstract
Electronic waste, or e-waste, is one of the fastest-growing household waste flows. This is due to the raising popularity of electronic devices and ICT in human life coupled with their rapid obsolescence, which means that not only broken, but also fully intact devices quickly become useless. Electronic devices turn into waste while still usable because they no longer meet consumer requirements.
Oscillations of Pipelines Laid on Supports in the Conditions of Aerodynamic Resonance
Authors: Tokarev A , Valeev A , Nurutdinova K 
Published: April 2020

Abstract
Above-ground laying of field and main oil and gas pipelines is one of the most common methods in the conditions of the North and permafrost soils, as well as at the intersection of ravines, canals, small rivers, in rocky soils, in areas of mine workings and landslides. Under the influence of wind, above-ground pipelines can experience oscillations whose frequency is usually equal to the frequency of the fundamental tone of free oscillations. Oscillations occur not only along, but also across the wind flow. The amplitude of oscillations across the flow is greater than the amplitude of vibration along the flow. At certain values of wind speed, the amplitude of oscillations increases sharply. As a rule, when designing, in calculating the distances between the supports, in most cases this phenomenon is not taken into account and the conditions for the occurrence of aerodynamic resonance when the natural frequencies of the pipeline oscillations and the frequency of vortex formation are close are not checked. In the paper the maximum allowable distances between the supports of various above-ground pipelines are determined taking into account the detuning from wind resonance from the condition of a certain critical wind speed.
Evaluation of the Organization of Water Monitoring and Quality in Recreational Use Sites on River Don and Its Tributaries
Authors: Klepikov Oh V , Molokanova LV , Pugacheva N 
Published: April 2020

Abstract
Man-made pollution of water bodies makes the safe usage for recreational purposes impossible, in particular in areas with scarce water resources. Under such conditions, the key role in ensuring the technosphere safety is played by appropriately organized monitoring research. The analysis of the existing monitoring and forecast system for the environmental safety of water bodies was conducted for the main waterway of the Voronezh oblast, the river Don and its tributaries. The analysis of the water samples to check their sanitary, chemical, microbiological and parasitological parameters allowed to identify the priority monitoring indicators as well as the need in broadening the list of the controlled parameters, more monitoring points and higher frequency of control measures.
Development of the Method for Assessment of Potential Zones of Destruction of Process Pipelines
Authors: Mazina Z R , Tlyasheva R R 
Published: April 2020

Abstract
The main technological equipment of hazardous production facilities are columntype devices with piping arrangement, which provide interconnection between individual pieces of equipment. In use process pipelines experience the considerable internal and external loads and impacts that is related to unstable work of the complex technical system and with features of its operation. Exceeding allowable loads can lead to depressurization of pipelines that, if the equipment is located close, can lead to the development of an accident with a “domino effect”.
Pipeline systems are a source of the increased danger because of a large number of welded and flange joints, stop and control valves, hard conditions of operation and the considerable the volume of the flammable substances moved on them. In this regard there was a need for development of a method which will allow to estimate potential zones of destruction of pipelines at realization of accident with “domino effect”
Improving Training in the Field Safety Management and Protection in Emergency Situations
Authors: Tumanov A , Monashkov V , Tumanov V 
Published: April 2020

Abstract
The object of the research is the process of creating distance learning courses on the program of professional retraining in the field of technosphere safety. The subject of research should be considered professional retraining in the field of technosphere safety. In the process of research, the main forms of public education in the field of natural and man-made emergency situations were reviewed and presented. Learning using modern technology, i.e. distance education. As a result of research on the basis of the Higher School of Technospheric Safety of Peter the Great St. Petersburg Polytechnic University, he developed a distance learning course, which is a set of activities aimed at finding information on the Internet, communication, teacher training, access to databases, periodic analysis. information publications distributed over the Internet. Developed programs for EMERCOM employees of Russia, employees of federal fire services, employees of the ATC ROSATOM, employees of the “Training and Methodological and Operational Character”, search and rescue services, as well as representatives of the armed forces and emergency situations, etc.
Management of Local Community Social Capital when Solving the Problems of Urban Environment Pollution with Solid Municipal Waste
Authors: Prelikova E A , Zotov V V , Yushin V V 
Published: April 2020

Abstract
It is in the cities where the issues of environmental protection are of paramount importance. It is there where the problem of using the social capital of the local community for the purposes of urban environment development and improvement arises. The relevance of the research under consideration and the degree of its scientific development allow us to define a scientific problem: an apparent contradiction between the need to solve the problems of improving and developing urban environment using the resources of the local community and the insufficient scientific and practical consideration and development of the issues of management the local community social capital to solve this problem. The management of local community social capital relies on configuring relative network of the local community actors for the implementation of joint prosocial activities in urban environment. The authors developed a management technology based on the use of geographic information systems together with the technology of crowdsourcing; the proposed technology allows solving the problems of urban environment pollution with solid municipal waste.
Analysis of Structure and Variability of Horizontal Currents Near the Mid-East Coast of Korea
Authors: Rouvinskaya E , Kurkina O , Giniyatullin A 
Published: April 2020

Abstract
In this paper we analyse data from ESROB (East Sea Real-time Ocean Buoy), namely records of northward and eastward current velocities obtained on 36 horizons (with a step of about 4 m), and records from sensors of CTD on 11 horizons, made from March 20 to March 23, 2016. Graphs of power spectral density and wavelet scalograms indicate the passage of tidal and inertial waves at the sensors installation point. The graphs of the velocity and temperature fields show steeping of the long waves fronts. The described structures have a baroclinic origin, since their vertical structure correlates with the vertical structure of the first baroclinic mode, calculated from the density data for the studied period. However, a sufficiently large interval of data sampling does not allow analyzing the form of short-period internal waves and identifying solitons that are likely to be generated.
Estimation of the Regression Equation Parameters X-Ray Radiometric and Geological Testing on Deposits of Rare and Precious Metals
Authors: Malafeyev O A , Ivanyukovich G A , Redinskikh N D , Zaitseva I V , Pichugin Y A , Shulga A A 
Published: April 2020

Abstract
Analysers for x-ray radiometric testing (X-RRT) are graded by comparing the results with traditional geological testing (GT). This time-consuming operation involves the collection of several hundred tests and their subsequent analysis in the laboratory. The “selection” of the regression equation coefficients between the X-RRT and GT data is complicated by a large range of metal contents and extremely uneven its distribution in the ore zones. For these reasons, the standard deviations between the testing methods are large and vary widely depending on the metal content. To increase the accuracy of regression parameter estimates, it is necessary to enlarge the control sampling. Such method raises the cost of testing and reduces its efficiency at variability of textural and structural features of ores. 270 slime tests of drilling and blasting wells of silver deposit Dukat are used for the analysis. The silver content in the tests according to the assay analysis was from 20 to 10 000 and more g/t. The differences between the main and repeated GT in the intervals of silver content 50 – 239, 240 – 999, 1000 g/t and more were 76, 175 and 651 g/t, respectively. Estimates of the regression equation between the two methods of testing with the help of two algorithms are compared. In the first, the loss function determined by the sum squares residuals (values deviations of the dependent variable from the regression line), in the second – the sum of the absolute values of the residuals normalized by the sum of the values of the dependent and independent variables. As a result, it is shown that in the first case, in order to improve the accuracy of coefficient estimates, it is necessary to exclude observations in which the absolute value of the residuals normalized by their standard deviation exceeds the critical level of 5-7. The second method is resistant to sampling and the number of observations can be reduced by 2 -3 times. Under these conditions, the error of coefficient estimates is close.
Substantiations Use of the Specific Energy Ice Destruction for Calculation the Cyclic Ice Load Parameters to Sea Structures
Authors: Tsuprik V G 
Published: April 2020

Abstract
In the known types of models breaking the ice at contact with the structures of used power approach of the theory of elasticity in which the time factor is not a parameter of stress-strain state of the compressed volume of ice and are not involved in description of its destruction. In the models, the unknown physical criterion of ice fracture is replaced by the pressure at the ice–structure contact boundary as a derivative of the ice strength when testing small samples. This paper, the energy approach is used, which made it possible to show the mechanism of ice destruction as a Converter of the kinetic energy of the ice field into the potential energy of elastic compression of the ice volume and elastic deflection of the structure base. The processes of accumulation of elastic energy in the specific volume of ice, mechanisms of nucleation of foci of destruction and development of cracks, are considered. It is shown that the condition for the onset of destruction is to achieve a critical value of the elastic energy density in a single volume and the specific energy of ice destruction is a regulator of ice load cycles on the structure.
Features of Operation of Highways in the Republic of Sakha (Yakutia)
Authors: Ushnitsky I N 
Published: April 2020

Abstract
A regional economy is greatly dependent on transport. Yakutia spans over 308,342.3 thousand hectares in Russia’s North East. Winters here are long: they last eight months with temperatures down to -50-60°C; summers are short but may be as hot as >30°C. This climate requires special approaches to be livable. This paper dwells upon road transport and its operation. Road transport requires high-quality roads. Today’s road vehicles are high-speed, heavy-duty vehicles; their speed and payload capacity are only expected to rise further. Yakutia’s highways are a set of infrastructures: pavement, earthworks, bridges, pipes, drainage, road signals and signs, recreational areas; pontoon bridges in summer, if necessary. All of that is necessary for road to operate normally. A car road is a costly infrastructure designed to last.
Research on Creation of Methods for Determining Betulin in Birch Bark Processing Products Using HPLC
Authors: Gorelova O M , Kotlubovskaya T V , Nadvotskaya V V 
Published: April 2020

Abstract
The paper assesses the possibility of creating a method for determining betulin in birch bark processing products using HPLC. The relevance and feasibility of developing an analysis are associated with an increase in the production of various products from birch bark and the need for a reliable and rapid way to assess their quality. The basis of the hypothesis is the reproducibility of the determination results of betulin in birch bark processing products by means of chromatography-mass spectrometry using the method of reversed-phase high-performance liquid chromatography. Initial qualitative and quantitative analyzes of betulin-containing extracts are carried out using gas chromatography-mass spectrometry methods. The reproducibility of the results obtained using HPLC has been verified. HPLC analysis of betulin-containing extracts and agrochemical “Stimulin” have revealed a correlation of the quantitative composition of betulin-containing preparations.
Unity of Natural and Architectural Space in Landscape Design of Komsomolsk-on-Amur
Authors: Galkina H , Grinkrug N 
Published: April 2020

Abstract
The problem of nature and architecture interaction is examined in the article. The possibilities of using natural forms as constructive and aesthetic solutions in the design of urban realm are considered. One of the ways to link the architectural and natural environment into one whole and continuous space, while preserving nature and organizing the optimal space for human survival is the architectural and landscape bionics. The article discusses the similar foreign techniques as exemplified by. The article presents the student experience of the department “Design of the architectural environment” of Komsomolsk-on-Amur State University used in term papers and degree theses. Elements of architectural bionics and geoplastics are used in the student work in the landscape development of public space in the landscaping project of the “Enthusiasts” public garden, in the “New Lenin” building estate.
The project developed hard landscaping, which flowing silhouettes were borrowed from natural objects. Piece of natural are used to design the paving pattern. These techniques allow us to change the rigid, geometric structure of a typical development consisting of panel building and make it more flexible and comfortable. The article concluded that the organization of public urban spaces and spaces courtyards of residential apartment buildings, their comprehensive improvement can solve not only the architectural and landscape issues, but also to create a comfortable place for the rest of the townspeople.
Surmounting of Visual Chaos in Urban Space
Authors: Stratonova L M 
Published: April 2020

Abstract
The importance of this article content is called forth by the fast public space changes that have been taking place in cities of Russia during last decades. To a certain extent, these changes are associated with new information media and means. Nowadays, the visual aids that dominate the public space are advertisements. The aim of advertising is to promote products and services informing the target audience. Forms and ways of achieving it are defined by the customer and the advertising agency. An avalanche of advertising information is trying to occupy a larger space and is doing it more and more actively and sophisticatedly. The visual chaos that resulted from aggressive advertising forms, creates a large number of problems for the residents; sometimes the situation does not seem safe enough. The objective of the given article is to analyze a complex of problems related to existing forms, effectiveness, and art quality of advertisements in the context of the urban environment. The article deals with historical experience of advertising techniques, forms and methods for public space advertising and visual object humanization offered by the world designer community. Most interesting methods successfully integrated in the contemporary urban environment for solving the above mentioned problems are given as well. As a result, new projects can be drawn up by young designers, student architecture studios, and decorative artist alliances. Paradoxical ideas, new forms of designing, an art of large-scale element arrangement, and an ability to find basic factors of interaction of space and form will help to surmount visual chaos, to reduce the urban context tension, and to form an aesthetically attractive visual informative imagery of the environment of Russia’s cities. This article is meant to be a basis of the content that allows to get quickly acquainted with actual concepts and methods for solving problems of advertisement integration in the visual structure of contemporary cities by means of actual forms of visualization, gaming technologies, and new forms of actual art.
Extraction of Acetals of Phenyl-Propargyl Aldehyde Using the Metod of Liquid Column Chromotography
Authors: Aminova E K , Fomina V V , Krasnov A N 
Published: April 2020

Abstract
The interreaction of substrates containing cyclopropane fragment with initial allyl and butyl alcohol, the influence of bromide atom in a gem-dichlorocyclopropane ring on the direction of the reaction with alcohol. The reaction of O-alkyllation 2-bromide-2-phenyl-gem-dichlorocyclopropane with alcohol in dimethylformamide with solid sodium hydroxide and without a phase transfer catalyst occurs selectively and produces the corresponding acetals of phenyl-propargyl aldehyde. The optimal conditions were selected for the reaction. It was researched and established that gem-dichlorocyclopropanes with a bromide atom in the cycle can also participate in such transformations. Acetals of phenyl-propargyl aldehyde were extracted from the reaction mix using the method of liquid column chromotography
Bioindication of Soil Based on Differences in Parameters of Development of the Indicator Species in Soils of Different Territories of Vladivostok
Authors: Makarova V N , Krasnitsky A A 
Published: April 2020

Abstract
In the process of interaction of the man with the habitat he is an integral part of the natural environment. To assess the anthropogenic impact upon the environment, living bioindicators are used which have several advantages over chemical methods of environmental assessment. They can respond even to any minor changes and enable to avoid the use of expensive and labor-intensive physical and chemical methods for measuring biological parameters. The assessment of a degree of soil contamination using bioindication, in places of oil products storage and active contamination from motor transport (central city), enables to determine a soil toxicity. Environmental toxicity can be determined by a level of response of the test object used. Reliability of results is confirmed by environmental statistical methods or biometrics. In this study, we obtained data that, taking into account the geographical location of the sampling point, the results demonstrated both a low toxicity of the soil and a stimulating effect of man-made environmental factors upon its state.
Disaster politics in the South of Russia
Authors: Goryushina E M 
Published: April 2020

Abstract
The article considers a number of characteristic features of the mutual connection between dangerous natural phenomena and their catastrophic consequences on the disaster policy-making. A revision of existing studies on this topic is being conducted. It is argued, that disaster politics in the South of Russia is almost completely ignorant, situation-based and does not lead to significant changes in the field of early disaster awareness strategy. A number of several characteristic features of the region are outlined directly affecting the disaster policymaking. Based on the data of the SSC RAS expeditionary work, a number of the most destructive hydrometeorological phenomena in the South of Russia (2012-2018) is identified. The case of the flood crisis in Krymsk 2012 is considered. It should be concluded that the flood crisis of 2012 did not lead to the long-term disaster policy strategy for implementation regular preventive measures.