bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Method of Shut-off Valves Optimal Placing on Trunk Oil Pipeline
Authors: Afinogentov A A , Ivanova N I , Fedotova I A 
Published: June 2019

Abstract
The shut-off valves are an important element to the safe operation of a trunk oil pipeline. Actual problem of shut-off valves optimal placing on trunk oil pipeline is defined with respect to minimal oil spill during accidents and planning repair operations. The method of optimal placing is presented as a problem of nonlinear mathematical programming with limits and these limits are minimal distance between line valves. The solution of mathematical programming problem is given with the help of rigorous (alternance) parametric optimization method which is founded on special qualities ultimate solution. The approach of shut-off valves placing on three and four linear block valves taking into account typical cases. The results of optimal linear block valves placing calculation are shown at a site of trunk oil pipeline 77 km long. As a result of the application of the proposed technique, a reduction of the maximum volume of oil spill on the linear part of the oil trunk pipeline by 25 percent or a reduction in the number of shut-off valves from four to three for the initial value of the maximum oil spill can be achieve.
Method of Oil and Gas Fields Construction on the Continental Shelf of the Arctic Seas
Authors: Perfilov V A , Parkhomenko D S , Pletnev M S 
Published: June 2019

Abstract
In this article we consider the problem of field development on the continental shelf consisting in technological complexity and high capital investments of construction of sea oil and gas constructions in water areas of the Arctic seas. We consider the main advantages of a mine and tunnel way of arrangement of sea oil and gas fields as more effective and economic method of field development. We analyse conditions and possibilities of application of tunneling shield for construction of a tunnel under a seabed. We analyse a possibility of operation of coiled tubing unit for development of wells. We offer the perspective way of construction of underwater oil and gas construction combining building of an underground tunnel under a seabed by means of a tunnelling shield and application in a tunnel of the coiled tubing equipment for well-drilling.
How Parameters of the Used Equipment Influence on Efficiency of Exploitation of Cyclic-Flow Technology Complexes
Authors: Glebov A V , Semenkin A V , Karmaev G D , Bersenev V A 
Published: June 2019

Abstract
Influence of parameters of the used equipment on conditions of application of the cyclic-flow technology complexes (CFT) in comparison with an excavator and automobile complex (EAC) is considered in this article. Dependences of quantitative change of indicators of efficiency of application (a relative discounted specific expenses, a specific metal consumption, a specific power consumption, a labour productivity, assignments for air contamination) on height of rock formation’s rising when using excavators with a volume of ladle from 5 to 20 cubic meters and dump trucks with a loading capacity from 45 to 130 tons in the CFT complexes are defined during the research. The preferable conditions of application of the CFT complexes with costs and without costs of a board rating when ore mining and overburden. As a result of realization of the research it is defined that in spite of the fact that using of more potent equipment influences on the quantitative value of indicators of effectiveness, the preferable conditions of application of the CFT complexes in comparison with EAC practically do not change.
Ways to Improve the Drillers’ Working Clothes as an Element of the Work Safety System
Authors: Girfanova L R , Teregulova Z S , Krasovsky V O 
Published: June 2019

Abstract
The article, based on the analysis of indicators of working conditions and risk factors that contribute to the development of occupational diseases in the oil producing industry, presents modern approaches to reduce the impact of harmful factors on the health of employees of the main profession - drillers as the most popular profession in the oil and gas industry. The requirements for working clothes and the prospects for their application are justified, as well as the necessity to implement the principle of multifunctionality, the use of modern achievements in various branches of knowledge and new technologies in the production of overalls as personal protective equipment.
The Elaboration of Day-to-Day Operation Procedures for Passenger Rail Transportation Aimed at the Realization of the Strategic Goals of a Passenger Company
Authors: Kitanina K V , Kalikina T N 
Published: June 2019

Abstract
This paper is devoted to the development of methodology for the day-to-day operation procedures for passenger rail transportation in the light of decease in passenger traffic. We have accentuated factors that have the most negative influence on the organization of passenger traffic in the Russian Federation. We have determined the goal state for rail transport for commuters and long distance passenger traffic. We also investigated measures for day-to-day operation as well as conditions for employment of these procedures under fluctuations of passenger traffic to substantiate the need for further elaboration and improvement of these procesures. In this work we have developed a sequence of day-to-day operations; as the criterion for switching from one procedure to another we have chosen the seating capacity factor in consideration of the carriage type, demand for a certain car type and the traffic route of the train. The results of experimental research showed the efficiency of the methodology developed.
Research of AC Traction Network’s Relay Protection Operating Under Heavy Haul Traffic Conditions
Authors: Pinchukov P S , Makasheva S I 
Published: June 2019

Abstract
Backgrounds and trends of increasing volumes of heavy haul traffic in the Far East of Russia are briefly reviewed. The results of long-term observations of the load conditions parameters of the relay protection gears of AC traction network of Russian Railways Holding are given. Changes that occurred in the operation of the AC traction network’s relay protection during last 10 years in the example of traction substations at the Far East of Russia are considered. The conditions of the experiment and the method of the obtained data processing are described in detail. The need for the development and implementation of relay protection devices with new forms of angular characteristics at Russia’s traction networks is justified.
Transition Model: to the Ecologically Balanced Development of the Ecosystem of Wellness Resort Territories
Authors: Pavlenko I G , Ostovskaya A A , Kirenkina E S 
Published: June 2019

Abstract
The article rationalizes theoretical aspects of balanced development of wellness resort recreational ecosystems. The wellness resort recreational ecosystem is specifically defined as a spatial system of interconnected ecological, economic and social components, which allows for more accurate elaboration of the methodology basis of the wellness resort stable development concept. The research has in focus the basic features of wellness resort balanced development and provides a characteristic of ecologically balanced recreational management of natural resources, analyzes and summarizes basic principles and specifics of recreational natural resource management. The methods applied include measuring recreational load and extent of recreational digression which were adapted for the current research purpose and resulted in defining the extent of recreational load and stages of recreational digression. A shift towards ecologically balanced development of recreational ecosystem has been proven to be an urgent need and may be achieved through applying the elaborated model and efficient policy targeting ecologically balanced development.
Petrochemical Compound-Based Corrosion Inhibitors
Authors: Gabitov A I 
Published: June 2019

Abstract
The results of applying intermediate products and petrochemical wastes for making corrosion inhibitors are analyzed herein. Behavior of a number of 1,3-diheterocycloalcanes-based corrosion inhibitors is reviewed. Analysis of corrosion-electrochemical test results with steel samples to be applied in oil and gas facilities construction has become the principal approach to this study. Kinetic parameters of cathodic reactions are found by analyzing Tafel sections of polarization curves taken in the blank medium while injecting various compounds thereto. Experimental criteria defining the mechanism of cathodic release of hydrogen both in uninhibited and inhibited acidic corrosive media are found. 1,3-dioxolane derivatives are not demonstrated to actually affect the cathodic reaction parameters but they are blocking inhibitors; while oxazines and carbamates are mixed inhibitors. The results of corrosion-electrochemical tests may be used to study the mechanism of the corrosion inhibition with the studied compounds.
Resource-Saving Technology of Wastewater Treatment of Factories of Reinforced Concrete
Authors: Moskvicheva A V , Shchitova T V , Ibragimova Z K 
Published: June 2019

Abstract
A low-waste resource-saving technology for wastewater treatment from emulsified contaminants at the construction industry enterprises was developed. The technology allows reusing purified water, processing organic pollutants into secondary raw materials.
Laboratory and industrial tests were carried out. The experimental data were obtained with the use of instruments, equipment, providing the required accuracy, reliability of the measurement results, processed using the mathematical statistics of experiment planning, confirmed by implementation in production.
The conditions for the destruction of water-organic emulsions by a constant electric current in a device with insoluble anodes have been studied. The main factors were identified and analyzed: electrode material, solution electrical conductivity, current density, electrolyte composition, hydrogen value, temperature and processing time. The optimal parameters of the purification process are established. The kinetics of the process has been studied. A probabilistic mechanism for the destruction of emulsified organic substances in the investigated medium is presented.
On the experimental unit, the operations of averaging, sedimentation, electrochemical treatment, secondary sedimentation and the return of purified water to the technological cycle were worked out and introduced into production. The technological regulations were developed.
The Change of Operational Properties of Polyvinylchloride Film on Exposure to Microwave Radiation
Authors: Bondar K E , Suleymanov D F , Laponov S V 
Published: June 2019

Abstract
The article considers the study of Polyvinylchloride film properties and their change on exposure to microwave radiation with relatively low doses of energy. The work relevance is caused by wide application of products on PVC basis and their good interaction with electromagnetic radiation. The experiments have shown the improvement of operational properties at energy doses from 10 to 30 kJ / kg. The proposed method is more environmentally friendly, energy efficient compared with traditional methods of improving the polyvinylchloride film properties.
Simulation Model for Assessment of the Effect of Modernization of Transport Complex on Freight Delay in Multimodal Traffic
Authors: Tashlykova A I , Shirokova V V 
Published: June 2019

Abstract
The article is aimed at solving the issue of assessing the influence of various factors affecting the processing capacity of transport nodes. The leading approach to investigating this problem is to create a simulation model for software to assess the impact of changing infrastructure parameters. Article materials can be useful for all participants in the transportation process of any type of transport.
Eco-Geochemical Characteristics of Surface Waters in the Zone of Oil and Gas Deposits Development in the Western Yakutia
Authors: Sleptcova E V , Yakovleva V D , Zakharova M R 
Published: June 2019

Abstract
In Western Yakutia, the largest oil and gas fields are concentrated, on which several subsoil users currently work. Due to the intensive use of water by oil and gas companies for industrial purposes, the construction of transport infrastructure, a significant impact on the state of surface water is occur. An assessment of the ecogeochemical state of small rivers located on the territory of oil and gas industry impact in Mirny district was carried out. It is revealed that the construction of water intakes can lead to changes in the mineral composition of surface water. Road construction has a significant exposure on the ecological condition of rivers. The results indicated increased concentrations of heavy metals such as iron, zinc, copper, aluminium, manganese in the studied rivers.
Gradient Energetic Criterion of the Surface Water Layer
Authors: Gazhur A , Myasnikova E 
Published: June 2019

Abstract
The article is devoted to the methods of analysis of the surface water layer of oceanic, marine and inland water basins. Due to water pollution, the optical properties of the surface layer are changed. The temperature field in the surface layer is locally transformed. This has a serious impact on the maintenance of the current structure. Water quality is changing. The conditions of existence of flora and fauna are changing. The article analyzes the indicators that determine water pollution. Absence of common energetic characteristic of a condition of a surface water layer is specified. It is proposed to estimate the dynamic picture of the heat absorption process. To do this, a gradient energetic criterion is introduced. The numerator of this criterion shows the intensity of the absorbed solar energy flux by the surface layer with a thickness of 1 m. the Denominator is the magnitude of the maximum possible absorption of the radiation flux. This maximal radiation flux is taken to be the value of the solar constant. The absorption of flow is considered to be evenly. This means linear temperature distribution. The depth of absorption to be a certain predetermined depth at which almost the entire stream of solar radiation is absorbed. The gradient criterion for the contaminated surface layer is several times higher than its value for clean water. That is, the gradient criterion captures the rapid overheating of the surface layer of the polluted water basin. This process, in particular, leads to the displacement of water currents. This is due to the fact that the bulk of the moving layer is at the surface. Also gradient criterion shows the danger of this local overheating for living organisms.
The Control Waste of Communal Services
Authors: Rusanova E , Abu-Khasan M , Sakharova A 
Published: June 2019

AbstractThe article deals with municipal waste-sewage sludge. This is the technology of the full cycle of sewage sludge utilization with the production of useful products is proposed. The technology includes the use of ash from the incineration of sewage sludge in the production of building cellular materials in the form of ash-concrete blocks and the use of blocks for construction.
Analysis of the Composition and Properties of Municipal Solid Waste and Their Use as Carbonaceous Feedstock in Underground Coal Gasification Process
Authors: Grebeniuk I V , Belov A V , Danilov O S 
Published: June 2019

Abstract
The development of new technological solutions in municipal solid waste management will reduce the adverse impact on the environment and human health. There are different methods of thermal disposal of municipal solid waste, such as incineration, pyrolysis,and gasification. The most effective and environmental method of thermal disposal is the gasification of solid wastes. This paper discusses the possibility of municipal solid waste gasification in underground coal gasification process and the prospects of gasification method following on from the analysis of the composition and properties of municipal solid waste. Municipal solid waste is a valuable carbonaceous feedstock that can be used in an underground coal gasification process to increase the life cycle of the underground gasifier, to produce additional volumes of synthesis gas, to stow the ash of municipal solid waste in mined-out space of underground gasifier. Operations of municipal solid waste preparation need to improve the efficiency of the gasification process. A considerable volume of municipal solid waste is an alternative carbonaceous resource, which can provide the needs of power and chemical industry for synthesis gas.
Comparative Analysis of PCDD/Fs Formation during Pyrolysis and Incineration of Medical Waste
Authors: Gerasimov G Ya 
Published: June 2019

Abstract
Medical waste is a special kind of hazardous materials, which disposal leads to considerable pollution of the environment. The widespread method of medical waste disposal is thermal treatment (pyrolysis or incineration), which gives appropriate transformation of waste into a safe form (ash) and energy. On the other hand, the thermal treatment of medical waste that contain chlorine leads to the formation of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), most toxic representatives of organic pollutants. This paper analyses various mechanisms of the PCDD/Fs formation during thermal treatment of chlorine-containing medical waste. The features of these mechanisms are considered. It is shown that in pyrolytic conditions the PCDD/Fs yield is much lower than under direct incineration. Optimal temperature conditions are determined, under which the formation of these compounds is minimal.
Application Prospepects of a Mineral Sorbents in Yakutia
Authors: Erofeevskya L A , Aleksandrov A R 
Published: June 2019

Abstract
The subject covered in the paper is practical application of ecologically and economically proved methods to restore the disturbed soil ecosystems in Yakutia after emergency oil spills. Experimental studies have been performed on the development of a new petroleum biosorbent based on a mineral composition. The natural zeolite from the Khonguruu deposit (Sakha Republic (Yakutia), Russia) is used as a base for obtaining the new petroleum biosorbent. A brief description of the material composition and physico-chemical characteristics of various types of zeolite raw material is given.We present the results of the experimental application of hydrocarbon oxidizing microorganisms (HOM) immobilized on zeolite (clinoptilolite-geylandite series) from the Khonguruu deposit in oil-contaminated soils. It has been established that the obtained biomineral compositions provide a significant activation of the biodegradation of petroleum hydrocarbons (HC) in the soil. The most intensive processes occur at the first stage of the treatment activities (up to 90 days from the experiment’s start). The effect of the zeolite with fraction size less than 0.25 mm on the intensity of the destruction of oil is somewhat higher, compared with fraction size 0.5-3.0 mm. During one growing season, the degradation of petroleum hydrocarbons in soils treated with HOM was 36-54%; in soils treated with HOM immobilized on zeolite - 71-99%; in control variants not treated with biological preparations, the degradation coefficient of oil contamination is not significant. In general, the technology of using zeolite raw materials for cleaning up oil spills from different types of permafrost soils provides a significant ecological and economic effect, thus contributing to the reduction of the time for rehabilitation of disturbed lands and the improvement of the environment in the disturbed territory.
Research of Levels of Noise Generated by Road Traffic in Urban Areas
Authors: Litvinova N A 
Published: June 2019

Abstract
This article presents a correlation graph of noise levels vs traffic intensity and vs height of buildings, as well as vs distances from motorways based on results of carried out research; simulation models of exposure to noise levels in areas with high traffic intensity (more than 3,000 vehicles/hour) have been generated using the “ACOUSTIC” software package. Based on the obtained empirical correlation graphs recommendations have been developed aimed at reducing noise levels created by transport. A nomogram was generated to determine the noise levels generated by high traffic intensity motorways in both front-facing and ribbon types of residential blocks arrangement. The recommendations provide means for designing noise baffles to be placed near the medium to high traffic intensity motorways taking into account noise levels with respect to building heights in urban areas, as well as respecting the residential blocks arrangement and the overall heights of buildings.
Innovative Technologies for Protective Structures Upon Creating Environmentally Safe Urban Systems
Authors: Klimenko M Y , Kasharina T P , Sidenko E S 
Published: June 2019

Abstract
The article deals with the issues of sustainable development, which should meet the needs of the present and future generation – the environmental safety of urban systems including socio-economic and intellectual impact on human processes occurring in the environment, preservation and improvement of the quality of life. Rational use of natural resources is the main task of the modern social state. Ideal zoning of territories in and around the city should primarily be carried out in such a way that gradually, as the distance from the city increases, so the environment becomes cleaner and gradually nature would become absolutely virgin. For this purpose the spatial structure of ecological skeleton of settlement is offered. One of the directions of ensuring ecological safety of construction and municipal economy is ecorestoration of landscapes, which includes restoration of properties: of soil, water, atmosphere, relief and lithosphere; flora and fauna. It may encompass returning the contaminated landscape or its separate components to a state close to the natural one. The main problems of ecology of urban systems are revealed. The generalizing coefficient of influence of city (technical) systems on environment is offered including an assessment of morphological, technical, hydrotechnical, hydrobiological and biological changes of flora and fauna, water quality in adjacent water objects (water intakes); ecotoxicological and social changes; sanitary and hygienic diseases; effects of space-related changes and emergencies.
Screening Optimal Thickness of an Underground Pipeline’s Thermal Insulation with the Aim of Minimizing Thawing Halo in the Ground in Conditions of Central Yakutia
Authors: Ivanov V A , Rozhin I I 
Published: June 2019

Abstract
The paper describes a study of thermal interaction between underground gas pipeline and surrounding permafrost and seasonally thawing soil. A forecast of the soil’s thermal mode depending on thermal insulation on the pipeline is made by means of numerical simulation with finite elements method. The analysis accounts for air temperature, thermal radiation balance of the ground surface, wind speed and snow thickness.