bluuebunny/crossref_metadata_2025_split huggingface dataset:
Experimental Study of the Effects of Various Intensifiers on the Process of Methane Replacement with Carbon Dioxide in Gas Hydrate
Authors: Osmolovskiy P I , Em I M , Gulkov A N 
Published: April 2020

Abstract
The experimental data of replacement of methane with carbon dioxide in gas hydrate using various intensifiers of the substitution process are represented in this article. When nitrogen was used as the gas of the intensifier of the substitution process, a growth of 15% in the volume of carbon dioxide substituted for methane was revealed in a 30/70% ratio for the same period of time and the same experimental conditions. When atmospheric air was used as a gas intensifier for the substitution process, as a cheaper alternative component, a 36% increase was detected in the volume of carbon dioxide that replaced methane at a ratio for the same period of time and the same experimental conditions. When applying thermal stimulation and substitution using preheated carbon dioxide, the growth was 44% and 52%, respectively.
A Method for Identifying and Resolving Conflicts in Urban Riverside Development
Authors: Perkova M V , Baklazhenko E V , Vaytens A G 
Published: April 2020

Abstract
Today, the urban riverside is prone to conflict; it is a location in the direst the need of preserving the environment and optimizing environmental management. This paper proposes a mechanism for resolving the conflicts that may arise when developing a riverside. The river and the riverside are crucial to high-quality natural and anthropogenic systems in any kind of settlement. The riverside is not only an important natural and recreational resource; it can also compensate for the anthropogenic environmental damage. However, it is also susceptible to intense anthropogenic impact associated with suboptimal use of coastal areas, deterioration of green spaces, and a considerable reduction in the areas suitable for recreation. To resolve the existing urban conflicts pertaining to the riverside, this paper proposes an ecological stabilization method that can create a holistic territorial complex to merge the necessary natural and anthropogenic components. The method is based on identifying urban conflicts and their parties, on finding a middle ground that will fit all of them while also preserving the ecological backbone. The method helps adapt riversides to the interests and values of all urban parties, protect the water reservoirs from intense anthropogenic impact, and improve the ecological conditions.
Building-Bridges and Building-Platforms as Impact Into Sustainable Development of City Architecture
Authors: Zabalueva T R , Zakharov A V 
Published: April 2020

Abstract
Building-bridges and building-platforms significantly contribute to the resolution of two most complex problems large cities suffer from: recurring traffic jams and dramatic lack of free territories for building development. Building bridges over various extended obstacles of the technogenic (motor and rail roads) and natural (rivers, cloughs, etc.) remains one of the most urgent tasks of forming urban traffic system. Bridge erection is fully financed by state structures but it does not provide any direct economic return. Due to restricted public funds bridge building can last for years. To resolve the problem as fast as possible, one suggests attracting external investments by means of constructing a new type of buildings called “building-bridges”. The bridge part of the building is included in the urban traffic system, useful building areas which can yield early income are assigned to the investor for use. Due to this the second problem - the lack of free territories for building development - is resolved. The development of building-bridge structural systems allows forming large spaces of platforms for building development, garden square improvement, sports grounds and parks enhancing the city ecology over the territories of access routes to railway stations and some industrial territories within the city.
Green Roofs in Russia: Classification and Typology
Authors: Kireeva T V 
Published: April 2020

Abstract
The proposed Green Roof Classification is a foundation, upon which Russia will develop its green architecture and natural urbanism. The classification uses four generic features that branch into multiple subfeatures; in an association with an expanded typology, it forms a dually structured whole. For the first time ever in Russian science, the classification presents a clear-cut definition of each class and type of green and accessed roofs. The classification flowchart is a visual toolkit designers, construction workers, and developers could use to create and promote green roofs. The Green Roof Classification should become part of the curricula for bachelors and masters in Landscape Architecture and Architectural Design.
Selection of Organizational and Technological Solutions for Construction
Authors: Sinenko S 
Published: April 2020

Abstract
The article describes methods and techniques of selecting the most efficient solutions for construction. Selection of the best organizational, technological and cost-effective selection for construction of buildings and related structures is one of the key issues of constructions operations studied by virtually all the leading universities in the Russian Federation. This issue becomes relevant when new construction processes are introduced and when minor quantitative changes, which in the majority of cases result in a change in the technology and organization of works, are made to a project. Currently, there is an issue of formalization of the problem on all stages, as well as of the more precise definition of direct and inverse connections between separate stages of selecting an organizational and technological solution (OTS) for construction of buildings and related structures. Having analyzed research papers and building information modeling tools for developing an OTS, we may assert that the selection of organizational and technological solutions is insufficiently elaborated in the sphere of automation and still requires a large amount of manual labor regarding, particularly, selection of a model flow chart of CP. Results of multiple studies in the sphere of virtual reality support implementation of the “direct design” concept. Architectural and construction visualization as one of the spheres of 3D graphics helps to evaluate whether a building or any architectural form fits the existing construction site to a high degree of accuracy.
Implementation of Technosphere and Fire Safety Program (TFSP) to Increase Production Efficiency and Minimize Losses
Authors: Makarenko A I , Tarakanova V V , Romanenko A I 
Published: April 2020

Abstract
Technosphere and Fire Safety Program (TFSP) is a production program whose main goal is to achieve maximum compliance with environmental laws, meet the requirements of safety standards and norms, maintain production equipment throughout its entire life cycle by engaging and motivating participation in this program throughout work force. The main three goals of the TFSP are: minimization of manufacturing defects, breakdowns and emergencies. According to this program, these goals can be achieved by taking measures aimed at improving the efficiency of equipment, creating an autonomous maintenance program, creating a planned maintenance system, organizing training courses for workers and developing an enterprise management system. The article considers the possibility of introducing technosphere and fire safety programs (TFSP) in industry. At the first stage, possible losses and factors contributing to these losses were determined. The general indicators of technosphere safety are affected by eight major production losses associated with equipment, which include equipment breakdowns, adjustment and commissioning, component replacement, production line start-up, idling, speed, manufacturing defects, and unplanned shutdowns. At the second stage of the introduction of the TFSP, a scheduled maintenance program was proposed with the aim of creating a smooth production process with minimizing technosphere risks.
Research of Formation and Decomposition Processes of Natural Gas Hydrates of Different Composition in Model Stratum Waters of a Bicarbonate-Sodium Type
Authors: Kalacheva L P , Portnyagin A S , Solovyeva S A 
Published: April 2020

Abstract
The paper presents the results of an experimental study of the behaviour of formation and decomposition of natural gas hydrates of the Srednevilyuiskoe and Otradninskoe gas condensate fields depending on the concentration of sodium bicarbonate solution. Natural gases used in the hydrate formation process differ in their component composition and physicochemical properties. It was found that with increasing concentration of solutions, the gas pressure at which the hydrate formation process ends is increased. During hydrate formation, the initial dry natural gas of the Srednevilyuiskoe field turns into semi-wet gas, and that of the Otradninskoe field turns into wet gas. The decomposition of natural gas hydrates is described by sigmoid curves without an induction period. For the decomposition reaction of hydrates formed by natural gas of the Srednevilyuiskoe field, the reaction acceleration period is shorter than the deceleration period, while the opposite is observed for the Otradninskoe field. Therefore, in the first case, hydrates decompose faster than in the second. Thus, it was found that the hydrate formation process in model solutions of the sodium bicarbonate type and the decomposition reaction of the resulting hydrates depend on the composition of natural gas.
Designing In-Seam Gas Drainage Technology Based on Hydrodynamic Approach
Authors: Ponizov A V 
Published: April 2020

Abstract
The article presents science based technological solutions that are essential for the development of the country’s coal mining industry in terms of ensuring safety and efficiency of underground coal mining on the basis of improving in-seam gas drainage technologies using hydrodynamic impact on coal seams. Experimental work on the in-situ testing and approval of the new holistic technology was successfully done in the production panels 24-58, 24-58, 24-60 and 24-62 at the Kirova mine. That included underground hydrofracture of the working seam carried out from the development headings. High effectiveness of the proposed in-seam gas drainage technology was confirmed by effective methane extraction from the working coal seam, reduction of gas content in longwall faces and significant cut-down of equipment nonproductive time in areas covered by active in-seam gas drainage.
Physical and Chemical Regularities of Water’s Composition Formation in Natural and Technogenic Geological Structures of Closed Coal Mines (“Water-Rock” Model Verification)
Authors: Tarasenko I , Zinkov A , Zinkova E 
Published: April 2020

Abstract
The physical and chemical modelling helped to establish the regularities of the groundwater’s composition formation in the areas of coal mines that are being abandoned. We demonstrated that the unusual features of the composition of the subsurface waters in natural and technogenic structures of Russia and Ukraine resulted from “water–rock–gas” system’s chemical processes. “Aluminosilicates–water” system consecutively produces solutions corresponding to the HCO3–Ca → HCO3–Na(Mg) → HCO3–SO4–Na(Mg) → SO4–Na(Mg) series of changes in composition, “limestone-water” system produces solutions corresponding to the HCO3–Ca → Cl–Ca series, “dolomite-water” system consecutively produces aqueous solutions of the HCO3–Mg → Cl–Mg series, and “rock salt-water” system produces acidic Cl– Na type waters. We proved that water composition of technogenic complexes is determined by the features of geological structure of sedimentary basins, relations between reaction water masses and rocks (W/R), O2 and Co2 closeness-openness of W/R system.
The Mineralogical Findings in Coastal Outcrops of the Taimyr Peninsula
Authors: Tarasenko I , Zinkov A , Vasik O 
Published: April 2020

Abstract
The unique mineralogical findings in the coastal outcrops of the Taimyr Peninsula have been investigated. The internal structure, mineral and chemical composition of the mineral formations have been considered. The drusoid formations were established to be glendonites, and the spherical mineral aggregates were found to compose of carbonate material mainly, the last one containing numerous inclusions of pyrite, ilmenite, plagioclase, chlorite, amphibole, apatite and barite. Due to the usage of physical and chemical modeling it is shown that the investigated mineralogical findings proved to be the result of chemical processes in the system “water–permafrost rocks”.
The Research of Compression Pressure Effect in System External Coolers of LNG Technological Cycle
Authors: Lunkova L G , Melnikov G S , Razumov I K , Gulkov A N 
Published: April 2020

Abstract
As it is well known, that the demand for natural gas is growing, because it is the most environmentally friendly type of fuel. In addition to minimal environmental impact, natural gas has good operational and energy characteristics, which makes it an absolute leader in the global energy market. During liquefaction, natural gas becomes 600 times smaller in volume, which allows it to be transported by any ways over long distances. The issue of economic feasibility of transportation is decided on an individual basis. But liquefied natural gas (LNG) production is an energy-intensive process that requires significant operating costs. Therefore, the present work is devoted to the study of the effect of compression pressure on energy consumption in closed loops. The nitrogen and propane cycles are taken as an example.
Monitoring the Biological Safety Indoors
Authors: Kantur V A , Petrosyants V V , Lomakin A F 
Published: April 2020

Abstract
This paper proposes a method and a device for monitoring biological contamination indoors. The method uses the human body as a primary transducer as it produces a psychosomatic response to a biological agent. It is based on measuring the psychosomatic response to the non-invasive effects of biologic threats posed by such agents. A light permeability sensor for human body is proposed as for psychosomatic response instrumentation. The paper presents the circuit diagram of the device and describes it. It further dwells upon the specifications of an experimental unit created to measure biological contamination. The paper discusses the results of measuring human body’s psychosomatic response to pathogenic molds present indoors. It proves the proposed biological monitoring method advantageous.
Autonomous Network of Seismic Stations of the Island of Matua
Authors: Dudchenko I P 
Published: April 2020

Abstract
Currently, the majority of seismic stations installed in the Far East automatically continuously transmit data to processing centers. But none of the network’s seismic stations is autonomous in the full sense of the word. All these seismic stations are located in places where there is a power supply system and cellular communication. Some seismic stations do not transmit data due to the absence of a cellular network, and are powered by regularly replaced batteries, so they require regular visits to save data and replace batteries.
The Economic Effects of Interregional Redistribution of Resources: the Case of Khabarovsk Territory
Authors: Isaev A 
Published: April 2020

Abstract
Interregional transfers are the tool for redistributing financial resources in national economy. Increase in transfers to the region affects the supply of freely provided public goods by residents. The study investigates the effects of changes in the volume of federal transfers on key variables of the regional economy using a two-regional computable general equilibrium model. A key feature of the used Groenewold-Hagger-Madden model is the behavior of regional governments, which optimize expenditures on public goods in such a way as to maximize the utility function of households within their jurisdiction. The latter are perfectly mobile between regions and consume private and public goods under budgetary constraints. The model is calibrated for a particular region, Khabarovsk Territory, and the rest of the nation. It is shown that a sharp increase in federal transfers to the regional budget leads to a significant inflow of labor resources to the region, but only to insignificant changes in the welfare, wages and per capita consumption of households. Regional government will change tax rates in such a way that a reduction in their spending will offset the increase in consumption of public goods through transfers. Several multipliers for key regional variables with respect to tax rate are calculated.
Agroindustrial Clustering as a Driver of the Activization of Breeding Work in Animal Husbandry
Authors: Aleshina E A , Anisimova E I , Serdobintsev D V 
Published: April 2020

Abstract
The current condition of breeding in animal farming in Russia and on the regional example the Saratov area was researched. The indicators of the development of pig breeding, meat and dairy cattle breeding are analyzed. Data on livestock scoring and the specific share of various breeds of pigs and cattle in households of all categories are presented. The main problems of the development of stock breeding were identified, among which: the destruction of a unified system of breeding work, the lack of specialized education in the regions, reduction of specialized research institutions, reduction in the number of breeding enterprises, etc. The organizational and economic structure of the livestock cluster, consisting of a production core (agricultural, processing and marketing enterprises) and serving satellites (supplying organizations of scientific, technical, educational, financial and credit and insurance sectors) is proposed. The need for the creation of regional reception centers for primary meat processing and the Center for Cluster Development was also identified. And the creation of a single Selection and Hybrid Center in the regions will allow to restore and systematize the breeding work in the agricultural enterprises participating in the cluster. The implementation of proposals for the organization of breeding in the regions on the basis of livestock clusters will solve a number of organizational and economic problems of increasing the competitiveness of the main animal breeds and the efficiency of livestock production.
Common Restrictions Checking for Heterogeneous Transportation Problem
Authors: Osechkina M , Osechkina T 
Published: April 2020

Abstract
Transportation costs optimization is very actual problem today because of logistic growth. In common case package type, origin and destination may impose restrictions on the delivery type and vehicle type for transporting. In some cases there may exist two packages, first of which can be delivered by first vehicle type and can’t be delivered by second vehicle type. Otherwise second package can be delivered by second vehicle type and can’t be delivered by first vehicle type. Or in some cases there are several vehicles types in fleet with different capacity and different size or different driver working time, so it is restriction for transport problem. We offer a heuristic algorithm for solving transport problems with heterogeneous vehicle fleet. The algorithm is based on the extension of Clark-Wright method, which is used to solve transport problem.
Target Orientation of Technological Modernization of the Arctic Industrial Companies
Authors: Zharov V , Tsukerman V , Zharov N 
Published: April 2020

Abstract
The territory of the Arctic zone of the Russian Federation is the most important source of raw materials for the country’s economy but for further efficient industrial exploitation of the Arctic resources for the enterprises operating there a significant increase of labor productivity is required due to the use of the latest equipment and production technology. This is hindered by the lack of a system of technological modernization targeting of enterprises. Modern economic theory of endogenous economic growth does not allow proceeding to the substantiation of the quantitative goals of the technological development of enterprises. Accordingly in practice many unrelated target indicators are used to assess the use of technological innovations. It is shown that an indicator reflecting the impact of scientific and technological progress on the economic efficiency of resources used by the enterprises - material, labor and physical capital in the form of fixed assets can be the “coefficient of production manufacturability level”. Its values are calculated at the macro, meso, and micro levels according to statistical reporting and achieved values at the best enterprises of the industry can be used as target values when introducing technological innovations at the enterprises. It is determined that the growth of the coefficient of production manufacturability level is directly related to the renewal of the active part of fixed assets and the growth of the efficiency of capital of enterprises leading to an increase of labor productivity. The direction of technological development of the enterprises which simultaneously increases material efficiency, efficiency of capital and labor productivity is shown.
Models and Software Tools for Assessing Efficiency of Industrial Company Production Activity in Connection with Digital Technology and Manufacturing Use
Authors: Lukina S , Korshunova E , Zimovets O , Dorozhkina O , Makarov V 
Published: April 2020

Abstract
The article considers models and software tools for assessing the efficiency of industrial company production activity in connection with digital technology and manufacturing use. The method allows assessing and comparing a whole set of permitted alternative options of innovative solutions on the introduction of digital technology and manufacturing at the stages of product life cycle and production development.
The method is based on a set of mathematical models used to form the tools for equipping manufacturing processes with digital technology and manufacturing components; forming a total of partial criteria to assess the efficiency of the company production activity as a result of digital technology and manufacturing introduction; searching for an optimal problem solution. In terms of the structure, the process of manufacturing re-equipment with digital technology and manufacturing use is presented in the form of the algorithm for the assessment of digital technology and manufacturing introduction efficiency within the already existing or being developed corporate information system consisting of nine stages.
The automation of the developed method is conducted with software tools MS Excel, MS Access, MS Project, C#. The method industrial approbation demonstrates its operation efficiency for solving various problems of the comparative assessment of innovative solutions at the design stages of a life cycle of items and manufacturings.