bluuebunny/crossref_metadata_2025 huggingface dataset:
The two-point correlation function in the six-vertex model
Authors: Belov Pavel , Reshetikhin Nicolai
Published: February 2022

We study numerically the two-point correlation functions of height functions in the six-vertex model with domain wall boundary conditions. The correlation functions and the height functions are computed by the Markov chain Monte-Carlo algorithm. Particular attention is paid to the free fermionic point (Δ = 0), for which the correlation functions are obtained analytically in the thermodynamic limit. A good agreement of the exact and numerical results for the free fermionic point allows us to extend calculations to the disordered (|Δ| < 1) phase and to monitor the logarithm-like behavior of correlation functions there. For the antiferroelectric (Δ < −1) phase, the exponential decrease of correlation functions is observed.
Derivation of Liouville-like equations for the n-state probability density of an open system with thermalized particle reservoirs and its link to molecular simulation
Authors: Klein Rupert , Delle Site Luigi
Published: February 2022

A physico-mathematical model of open systems proposed in a previous paper (Delle Site and Klein 2020 J. Math. Phys. 61 083102) can represent a guiding reference in designing an accurate simulation scheme for an open molecular system embedded in a reservoir of energy and particles. The derived equations and the corresponding boundary conditions are obtained without assuming the action of an external source of heat that assures thermodynamic consistency of the open system with respect to a state of reference. However, in numerical schemes the temperature in the reservoir must be controlled by an external heat bath otherwise thermodynamic consistency cannot be achieved. In this perspective, the question to address is whether the explicit addition of an external heat bath in the theoretical model modifies the equations of the open system and its boundary conditions. In this work we consider this aspect and explicitly describe the evolution of the reservoir employing the Bergmann–Lebowitz statistical model of thermostat. It is shown that the resulting equations for the open system itself are not affected by this change and an example of numerical application is reviewed where the current result shows its conceptual relevance. Finally, a list of pending mathematical and modelling problems is discussed the solution of which would strengthen the mathematical rigour of the model and offer new perspectives for the further development of a new multiscale simulation scheme.
Spatial Distribution of Groundwater Quality Parameters in Al-Najaf City Using GIS and Geostatistics Techniques
Authors: Saleh Hadeel A Al , Saify Samir , Othman Nariman Y
Published: February 2022

The scarcity of water resources in arid areas, as well as the impact of agricultural and human activities on groundwater quantity and quality, need a greater emphasis on these resource quality evaluations. In this study, the groundwater quality in the governorate of Al-Najaf was investigated using geostatistical methods based on the kriging interpolation approach to interpolate values in regions where real data was not available, also groundwater samples were evaluated based on a variety of qualitative parameters. Linear Gaussian, exponential, stable, and quadratic were the semivariogram models the study examined, and archGIS software was extensively utilized to map the investigated data. The study concluded that the groundwater in this area is unsuitable neither for drinking purposes nor in most of the industries according to the Iraqi specifications. Wilcox and United States Salinity Laboratory (USSL) diagrams were used to analyse the accessible water wells in the area. The diagrams depicted that 95.8 percent of the available well water in the research region is unsuitable for irrigation due to the extremely high salinity and continued application of such water may result in the development of salt soils. Spatial examination of groundwater revealed serious problems with almost all groundwater parameters in terms of water appropriateness for drinking, irrigation, and other purposes.
Bioadsorption by Coffee Leaves in Poluted River Mantaro Water at Central Peru
Authors: Vitor-Ramos Y.K. , Ochoa-Escobar E.J. , Moggiano-Aburto N.
Published: February 2022

The biosorption of heavy metals is the property of some types of biomass, a process that captures or accumulates metal ions, allowing their removal or immobilization. The present study was carried out in the Mantaro river, following the recommendations of the ANA (National Water Authority), the experimental process was carried out in the laboratories of the Universidad Continental and the Volcan Mining Company, for this purpose the drying of the coffee leaves of the species (Caturra-arabic coffea) and its subsequent grinding, then it was added in 4 different proportions for samples of 250 ml of water. The first results showed that the water contains lead (0.1 mg/l), copper (4.12 mg/l), iron (0.01 mg/l) and zinc (0.42 mg/l) with a pH (7.53) and electrical conductivity (67μS).which are not recommended according to the Environmental Quality Standards, after adding the coffee leaf allowing it to act in a period of 48 hours, the best result was with the second sample adsorbing lead (0%), copper (95.15%), iron (0%) and zinc (52.38%) with a pH of 7.05 and electrical conductivity (664μS). Coffee leaves were more effective in reducing copper by up to 95.15%.
Blockchain Technology and Green Supply Chain Management (GSCM) – Improving Environmental and Energy Performance in Multi-echelon Supply Chains
Authors: Asif Muhammad Salman , Gill Harsimran
Published: February 2022

In this competitive and technology driven world, businesses are striving to gain benefits of environmental sustainability and energy conservation by implementing the latest technologies in their supply chains. A promising way of evaluating the environmental performance of a product or a process is Life Cycle Assessment (LCA) modelling, but the reliability of LCA results is mostly compromised due to the lack of real data from upstream and downstream supply chains. Our research aim is to drive LCA modelling through Blockchain Technology (BCT) and internet-of-things which have the capability to record reliable, transparent, and secure data from across the supply chain. The modified LCA model will provide various industries with the quantified benefits of BCT in terms of industrial emissions reduction. This conference paper reflects the 1st stage of research where we carried out a detailed literature review on potential use of blockchain technology in green supply chain management and based on the findings, we developed an integrative framework architecture for the supply chain of a supermarket product. In the next phase, the integration of BCT and LCA will be studied in food supply chains using a supermarket case study of Walmart-IBM developed blockchain consortium.
Sustainable Slow-Pyrolysis Simulation of 12 Lignocellulosic Bio-wastes: CO2 Emission, Energy, and Water Consumption
Authors: Zalazar-Garcia D , Fernandez A , Rodriguez-Ortiz L , Rodriguez R , Mazza G
Published: February 2022

The development and increase of the agro-industrial activity generate bio-waste that represents significant quantities and causes environmental impacts, as residual effluents and solid wastes. These bio-wastes can be converted into different products through the pyrolysis processes (biochar, bio-oil, and gas). In this work, the pyrolysis at 673, 773, and 873 K of 12 types of bio-waste characterized by their elemental composition was assessed through the simulation process. Cape Open to Cape Open Simulator (COCO) free software was used in simulations. Thus, the biochar, bio-oil, and gas yields were predicted. Also, the energy, water consumption, and CO2 emission were calculated for each type of bio-waste. The marc and the stalk of white grape presented the highest biochar and bio-oil yields (30.7 and 53.1 %wt) at 673 K. The pistachio green shell presented the highest gas yield, 53.7 %wt at 873 K. The maximum energy consumption and CO2 emissions founded were 13.72 kWh and 3.72 kg/h for the stalk of white grape at 873 K respectively, while the lowest energy consumption and CO2 emission were 9.22 kWh and 2.31 kg/h for plum pits at 773 K respectively. The highest water consumption was 25.86 kg/h for the stalk of red grape at 773 K, while the lowest value was 14.30 kg/h for plum pits at 773 K.
Analysing an Energy Sectoral Specialisation Pattern in Southern European Union Countries
Authors: Borozan Dj , Borozan B
Published: February 2022

Exploring the sectoral energy structure of Southern European Union (EU) countries of the Mediterranean region, the paper investigates the changes that have occurred in the distribution of the major energy end-use sectors in comparison to the EU average. To that end, the indices of sectoral specialisation were calculated, and then the behavioural pattern of energy users was analysed. The results indicate a relatively low sectoral heterogeneity of final energy consumption in the sample of interest, meaning that the structure of energy end-use sectors seems to show a rather comparable development trend and is quit homogeneous compared to the EU average. The degree of economic specialisation has become gradually lower over time. The stability of this trend is confirmed by using regression in Galton’s sense. The marginal values of the sectoral specialisation index suggest that the existing homogeneity in the sectoral structure is mainly related to the level of development, geographical proximity and spill-over effect as well as the size of an economy. Indeed, countries such as Malta and Cyprus were found to have a higher degree of specialisation than Italy or France.
The Influence of the Air Temperature on the CO2 Emissions by Occupants Indoors
Authors: Angelova R A , Velichkova R , Markov D , Stankov P
Published: February 2022

Data in human physiology have shown that the generation of metabolic CO2 in the temperature interval 18-28 °C could vary only because of the temperature of the environment. Our study investigated the influence of two air temperatures (23 °C and 27 °C) on the CO2 concentration in the classroom. Sixteen volunteers participated in the field study. It was found that the change in the room air temperature from 27 °C to 23 °C provoked a statistically proven change in the CO2 concentration. The air relative humidity also shifts: it increased with the decrement of the room temperature.
Project Management System of Exploration Program in the Light of Prioritizing of Reservoir Engineering Stages According to the Criterion of Prospects
Authors: Dadykn V S , Dadykina O V , Elyakova I D
Published: February 2022

A model of the project portfolio management system of a geological exploration enterprise has been developed, taking into account the stages of work. The model includes a control object, a decision-making subsystem, which includes a control device represented by the decision support software system “Balance of Groundwater Availability” (BGA) and an executive device represented by a decision-maker, making decisions at a geological exploration enterprise. The stimulus to the target asset arises on the one hand in connection with the implementation of sectorial and federal programs within the area for the development of the geological industry and the reproduction of mineral resources, on the other hand, it is the need to maintain a certain balance of the availability of raw materials in the region, in particular, underground water. Hence, it is necessary for the underground water exploration company to take into account the specifics of the programs in view of the interconnection of the sites within one large field of regional scale. In this case, the project portfolio needs to be managed, taking into account the network nature of their interaction, i.e. mutual influence on the remaining sections of the field. On the other hand, when forming a portfolio of projects of a geological exploration enterprise, it is necessary to take into account staging and phasing of geological exploration, their seasonal nature allows viewing the model of the management system in the context of discrete time. The work was carried out with the financial support of the grant of the President of the Russian Federation No. MD-2409.2020.5.
Sustainable Natural Resources Use: Financial and Tax Issues
Authors: Bashkirova N N , Lessovaia S N
Published: February 2022

The ecological stability and environmental security are becoming relevant issues being the elements of the national security. The development and the improvement of the financial (including tax), legal, educational, social and cultural components of the environmental regulation system is now a worldwide trend. The publication aims to analyze the financial and fiscal aspects of sustainable use of natural resources. Based on the consideration of advantages and disadvantages of the current system of ecological taxation in Russia, the critical analyses of implementing the “polluters pay” principle was provided and the key disadvantages of the energy and transport tax system were disclosed. The main challenges that arise from the implementation of the traditional objectives of ecological taxes and charges were examined in the paper. As a result of the summarized data the recommendations are suggested to improve the ecological taxation system. The alternative to the fiscal regulation, which aims to develop the mechanisms to solve the problem of sustainable natural resources use was justified in the paper. One of such mechanisms is creation of joint infrastructure that involves both state and business institutions, and enables companies to pursue environmental protection activities.
Application of Environmentally Safe Bioelectrical Parameterization for the Assessment of Potential Multiple Pregnancy of Sheep and Offspring Growing Capacity
Authors: Samusenko L D , Mamaev A V
Published: February 2022

Functional state of the reproductive system of ewes, which determines their multiple pregnancy, is closely related to homeostatic processes, which can be assessed by the level of bioelectric potential of superficially localized biologically active centers (LBP of SLBACs). The purpose of the work is to develop a method for early diagnostics of multiple pregnancies in ewes, by studying the LBP of the SLBACs of ewes and their reproduction rate - multiple pregnancies, as well as studying the growing capacity of offsprings of young animals obtained from experienced ewes. The object of the study was ewes of the Romanov breed.

As a result of the research and analysis of the data obtained, a straight-line relationship between the LBP of the SLBACs of ewes and their multiple pregnancies was established.

The results of the control young sheep breeding of the Romanov breed obtained from the ewes with different LBP of SLBACs showed that the lambs obtained from the ewes with a low LBP of the SLBACs had the highest growing capacity. However, the ewes with a high biopotential level produce significantly more offspring, which allows increasing the level of mutton production and the profitability of the industry.

On the basis of the data obtained, a method for early diagnosis of multiple pregnancies in sheep according to the LBP of the SLBACs of ewes before the mating campaign was developed.
Reclamation of Disturbed Land in Russia: State of the Art
Authors: Tsoraeva E N , Zaitseva Y V
Published: February 2022

Reclamation of disturbed land is a relevant issue, as each year, more and more land becomes unsuitable for economic use due to human activity, which alters the terrain and creates anthropogenic landscape, ultimately disturbing a variety of lands. Not only is disturbed land no longer suitable for economic use, but also is subject to intensive water and wind erosion, the products of which pollute the environment. The area susceptible to the negative effects of mining is about ten times the size of disturbed area. Reclamation of disturbed land is of special relevance in Russia, as the country is a leading producer and exporter of hydrocarbons, resulting in a worrisome lead in terms of pollution with oil and petroleum products, pesticides and heavy metals, as well as in the scale of soil-disrupting activities such as construction, amelioration, logging, surveying, testing, exploration, and operation of various facilities. This paper discusses the current state of the art of disturbed land reclamation in Russia. The authors analyzed statistics from Rosreestr, Rosselkhoznadzor, and Rosprirodnadzor.
Application of Multimodal Logistics for the Use of Demolition Products for Damaged Areas
Authors: Shershneva M V , Bodenko E M
Published: February 2022

The relevance of the problem under study is due on the one hand to the need to reclaim disturbed areas formed as a result of construction activities, on the other hand to the need to find useful use of demolition products of buildings and structures. The purpose of the work is to study the possibility of using multimodal logistics for the use of demolition products in the reclamation of disturbed areas, using the example of granite quarries. Geoecological, technological and economic forecasting of multimodal logistics of urban agglomeration demolition products will allow to develop the most optimal schemes of their useful use. As a result of research, mathematical models have been developed for predicting the formation of a transport and logistics chain for the removal of demolition products from objects. For the first time, a scheme has been developed for choosing a method of moving demolition products depending on the range of the burial place for making substantiating decisions on their removal in the process of designing measures for the reclamation of granite quarries from the point of view of geoecological and economic expediency. It is scientifically justified to use demolition products as fillers of spent granite quarries for temporary storage, partial or complete filling with subsequent reclamation of spent quarries. The materials of the article can be useful for the development of technological solutions for the reclamation of disturbed areas using demolition products of buildings and structures.
Analysis of Accidents and Incidents What Happened at Nuclear Power Plants in Russia from 1992 to 2019
Authors: Barbin N M , Titov S A , Kobelev A M
Published: February 2022

The article discusses emergencies that occurred at nuclear power plants in the Russian Federation for the period from 1992 to 2019. In the work, a systematic and statistical analysis was carried out, the number of emergency events was counted, the nuclear power plants at which accidents and incidents occurred, the year of occurrence of the emergency event was indicated, the main objects, the causes of emergencies were identified, the types of reactors at which accidents often occurred were identified, conclusions are drawn.
Impact of Industrial Transformation of Irelyakh River on Fish Parasite Fauna
Authors: Platonov T A , Solomonov N M , Kuzmina N V , Nyukkanov A N
Published: February 2022

Diamond industry has a negative impact on fish parasites with complex and simple life cycles that parasitize on fish skin. At the same time, direct development cycle species, as well as those whose larvae attack fish actively, are preserved.
Labor Safety in the Oil and Gas Industry
Authors: Iakovlev I V , Pesterev A P
Published: February 2022

The management of industrial safety and occupational health associated with oil and gas production is one of the vital components of the oil and gas industry, since it is well known that most conditions of operation, processing and storage of chemicals and end products pose a serious threat to technological and environmental safety, as well as health and life of people. The main danger is posed by potential explosions and fires occurring in the places of storage and transportation of oil products, which requires constant improvement of safety methods in the industry.
Hierarchical Representation of Decision-Making in Chartering a Vessel on a Voyage Charter
Authors: Kiseleva E V , Stepanets V E , Pilyugin A G , Valkova S S
Published: February 2022

This paper presents a decision-making method (analytic hierarchy process) for choosing a charter option by means of a subjective preference vector. Analytic hierarchy process (AHP) is a rather general methodology for solving a broad range of weakly structured decision-making problems that combines a fairly simple mathematical method with the manager’s knowledge, experience, and imagination. This paper investigates AHP application by a manager who is not an expert in chartering. To describe the method, the paper presents a case study of chartering a vessel to freight bulky, heavy cargo.
Technology of Water Purification from Hydrogen Sulphide and Its Utilization
Authors: Tereshchuk V S , Rakov D L
Published: February 2022

The article discussed a technology for cleaning natural reservoirs from hydrogen sulphide to improve the environment. The choice of research methods was to organize the creation of an airlift due to the electrolysis of seawater. To purify seawater from hydrogen sulphide, electrolysis with the release of hydrogen and oxygen is used. The released gases create an airlift effect, due to which the hydrogen sulphide rises to the surface, where it is captured for further separation. By-products of the electrolysis of seawater, chlorine and sodium, due to their good solubility in water, are converted into alkali and acid and, as a result of the neutralization reaction, return to the reservoir. The paper also discusses the features of the electrolysis of seawater. The use of the proposed approach will improve the ecological situation and, in particular, will lead to an increase in fish stocks and in the restoration of the red algae population.
Features of the Modern Formation of Nutrient Load from the Urban and Rural Population on the Catchment Area of Water Bodies within the Borders of the Republic of Tatarstan
Authors: Minakova E A , Shlychkov A P , Kondratyev S A , Biktemirova E I , Kiyasov I A
Published: February 2022

A comparative analysis of the formation of the nutrient load caused by the formation of communal discharges from the urban population and the dispersed load from the rural population for the period 2002-2015 yrs was carried out on the catchment of the Kuibyshev reservoir within the boundaries of the Republic of Tatarstan. It was revealed that the average value of the mass of nitrogen and phosphorus compounds formed in the catchment from municipal wastewaters of the urban population over the period is Ntot 5343 tons, Ptot 1790 tons; from the dispersed load of the rural population Ntot. 515 tons and Ptot 207 tons. It is shown that the contribution of the nutrient load from municipal wastewaters of the urban and rural population is Ntot. 96,3% and 3,7%, and according to Ptot. 96,9% and 3,1%, respectively.
Wastewater Treatment for Mercury and Arresting Mercury Contaminants Movement Within Industrial Soil
Authors: Fuchs S L , Filatov V Y , Devyaterikova S V
Published: February 2022

We have proposed optimal methods of treating both the waste- and stormwater for metallic and soluble mercury within the soil of mercury-based chlorine- and sodium-hydroxide production sites. The problem has been solved by combining physical, chemical and physicochemical treatment methods. Through the use of various filtering materials, coagulants and flocculants followed by sorption through AB-17-8 and Lewatit TR-214 ion exchangers, the level of mercury within wastewater has been decreased by about 99.9%. Demercurization of mercury-contaminated areas to the complete extraction of metallic mercury has been carried out by draining and the subsequent transfer of water-based compounds into a stable form through chemical immobilization without any prior soil removal. To achieve the aforesaid result we have treated the soil with stearic-acid salts solutions, which resulted in almost complete arrest of mercury within the soil.
Application of Demolition Products of Buildings and Structures to Ensure Reduction of Concentration of Heavy Metal Ions in Man-Made Soils at Construction Facilities
Authors: Shershneva M V , Bodenko E M
Published: February 2022

The article considers the problem of soil contamination in St. Petersburg with heavy metals. It has been shown that the degree of contamination is such that soils lose their ability to self-clean and can be attributed to technologically modified soils. Geochemical barriers are required to reduce the concentration of heavy metals. Based on the principle of A.I. Perelman, it is shown that the most promising wastes of the construction industry for use in geochemical barriers are silicate-containing wastes from demolition of buildings and structures. Capacity of heavy concrete and aerated concrete in relation to some heavy metals is determined in the work. The absence of selectivity of wastes to various heavy metals is shown. The formula for calculation of the life of the geochemical barrier taking into account its size, capacity and amount of contamination coming with melted and rain drains is proposed. The life of the geochemical barrier is calculated to prevent the migration of iron ions in the form of a railway embankment, which amounted to 47 years, provided that granite crushed stone is completely replaced by heavy concrete.
Clustering of Marine Vessel Trajectory Data for Routes Planning through Water Areas with Heavy Traffic
Authors: Grinyak V M , Shulenina A V , Devyatisilnyi A S
Published: February 2022

The article is devoted to the problem of ensuring the safety of vessel traffic. One of the elements of the traffic organization in areas with heavy navigation is the system of establishing the routes of vessels. This system is a set of restrictions imposed by a certain traffic pattern and rules adopted in a particular water area. The paper considers the problem of planning a transition route for water areas with heavy marine traffic. The planning of the vessels transition route during the movement of the water area with established routes must be carried out taking into account the specified restrictions. A possible way to identify these restrictions is to isolate the movement patterns of a particular sea area from the retrospective information about its traffic. Model representations of such a problem can be formulated on the basis of the idea of clustering the parameters of traffic. The route planning problem model is based on finding the shortest path on a weighted graph. Several ways of constructing such a graph are proposed: a regular grid of vertices and edges; a layered ore random grid of vertices and edges; vertices and edges based on retrospective data. The weight of the edges is proposed to be set as a function of the “desirability” of a particular course of the vessel for each point of the water area, taking into account the identified movement patterns. The paper discusses possible clustering methods and makes a choice in favor of subtractive clustering.
Geoecological Assessment of Resources of a Water Body for More Optimal Use
Authors: Ivanchenkova O A , Levkina G V , Romanenko A A
Published: February 2022

This paper presents a geoecological assessment of resources potentially available in or from shallow water bodies. It describes a case study as an example of how water bodies and coastal areas could be comprehensively analyzed, including microbiological testing, physical and chemical tests, testing water and bottom sediments for heavy metals, gamma spectrometry of soil samples, hydrological and hydroeconomic estimates. Experimental data is used to analyze the status of water bodies. Apparently, microbiological indicators are within the acceptable limits, and so are heavy metals. However, water sampled from Lake Oktyabrskoye has >10 times limit chromaticity and turbidity indicators, 10-11 times the limit chemical oxygen demand (COD). This indicates severe pollution and high concentration of organic substances. The presented approach to resource assessment could be of use when devising measures for nature-friendly restoration of water bodies.
Optimizing the Parameters of Hydrocyclone for Treatment of Wastewater from Non-Ferrous Concentrating Plant
Authors: Shevtsov M N , Vlasov V A , Kolpakov V P
Published: February 2022

This paper demonstrates a particular baseline design of centrifugal units; it further describes theoretical and experimental research thereof. The results of the studies are optimized hydrocyclone parameters: diameter, design elements, and recommended pressure. Pilot testing upon adoption confirmed the results of laboratory tests.
Building Functional Diagram of Cargo Delivery to Describe and Research Processes in Freight Forwarding Company based on the IDEFO Standard (SADT)
Authors: Kiseleva E V , Dambiev T B , Stepanets V E , Valkova S S
Published: February 2022

This article exposes the prospects of using structured analysis and design technique (SADT), its advantages and capacities for the study of processes in a freight forwarding company to improve the quality system for consigner service provision. We review the modeling of high-capacity container (HCC) transportation by a transport and logistics company using the SADT method and IDEFO notation, as well as the efficiency of using the SADT methodology to describe and research freight forwarding processes that can be confirmed by the list of its key application areas.
Computer Modeling of Zn and Ni Distribution in Technogenic Soils
Authors: Sarapulova G I
Published: February 2022

Based on computer modeling using geochemical parameters, new results of the interdependent distribution of mobile forms of heavy metals Zn and Ni in contaminated soil have been obtained. Modeling in Golden Software SURFER 8 made it possible to identify soil contamination halos - laterally module - in the zone of a hazardous gas station facility in the city. A three-dimensional skeleton model of the distribution of mobile forms of HM was obtained depending on the key parameter of soil organic carbon - Corg. The revealed picture of the distribution of metals adequately reflects the specificity of the individual chemical properties of Zn, Ni and clearly demonstrates the different efficiency of binding of their mobile forms with soil organic matter. The proposed approach of computer geochemical modeling can be recommended as a methodological guide for identifying the characteristics of behavior in the soil environment for other heavy metals. The revealed empirical dependencies prove the need to change approaches in the ecological assessment of territories in the conditions of technogenesis. Research also has a promising development, allows one to obtain new geochemical patterns and associations of elements in technogenic landscapes, which contributes to the development of the fundamental foundations of geochemical science.
Analysis and Traffic Management in Smart Cities
Authors: Namiot D , Pokusaev O , Chekmarev A
Published: February 2022

This article examines the issues of traffic management in the city. It is well known that cars are a significant contributor to urban air pollution. Accordingly, the management of transport in the city is one of the imperative tasks in terms of supporting the environment and ensuring urban development. Such management is impossible without collecting information on traffic flows in the city. It is logical to assume that there should be a single data source (information store) that contains information about all shipments. Urban governance, of course, involves not only collecting and analyzing data, but also managing this process. This article is devoted to the discussion of such systems.
Estimation of the Influence of Oil Flows on the Formation Losses of Condensate During the Development of Multi-Layer Deposits
Authors: Katanova R K , Inyakina E I , Alsheikhly M D Z , Krasnov I I
Published: February 2022

During the development of multilayer oil and gas condensate fields, the production of condensate is influenced by the associated oil. Analysis of field data showed that the cause of oil flows is the outstripping decrease in reservoir pressure in the gas condensate section in comparison with oil zones. Thus, incoming heavy oil fractions into a gas condensate reservoir have a negative impact on reservoir losses of hydrocarbons, including the final condensate recovery factor. Many years of experience in the development of such fields showed that the bulk of the presence of associated oil in well production is explained by the following reasons: the relationship between the reservoirs through lithological windows, the residual oil saturation of the reservoirs, and the presence of lenticular layers. Determination of the quantitative content of oil in the reservoir mixture was determined by infrared spectrometry using a Perkin-Elmer Fourier transform spectrometer, which makes it possible to assess changes in the component composition of gas condensate systems. In the course of the research, selected samples of the gas and liquid phases were analyzed directly from the production facilities of the development. The analysis of IR spectrometry showed that in most of the samples of gas condensates, the effect of displacement is recorded, which is characteristic of fluids with the manifestation of oil impurities.

The purpose of these studies is to study the influence of the produced oil on the dynamics of hydrocarbon production and the final condensate recovery factor.
The General Mechanism of the Origin of Natural Disasters in the Global Dimension
Authors: Knaub R V , Ignateva A V
Published: February 2022

The article presents a possible mechanism for the occurrence of natural disasters on a global scale based on the view of the Earth as an evolving electromagnetic self-oscillating system. The possible future of natural disasters in the global dimension is presented. It has been established that for the period from 1900 to 2020 there was a gradual, and at certain time intervals and a sharp increase in the number of catastrophes on our planet. At the same time, there was an increase in the number of victims of these disasters, the number of victims and material damage. The article emphasizes that catastrophes for our planet are a natural course of development for it as for an evolving electromagnetic self-oscillating system. For this reason, all natural disasters on our planet must be adequately accepted and understood that only for humans they are catastrophes, and in the event of human losses and economic damage, they pass into the stage of emergency situations. The article also shows a close connection between natural disasters and the rhythms of the Sun and solar activity.

«The frantic desire for life thrives in the heart of every great calamity»

Albert Camus
The Calculating Dynamics Erosion of Support Foundations of Ocean-Technical Installations
Authors: Dushko V , Kramar V
Published: February 2022

The article discusses an approach to calculating the characteristics of soil erosion near the support foundations of ocean-technical structures under the influence of wave and constant currents. Vertical supports in the form of a circular cylinder are considered a support base. An example of the choice of the initial and boundary conditions for the calculation is given. Simulation is carried out near the cylindrical support. The results obtained were compared with empirical data. Conclusions are drawn about the displacement of the zones of maximum and minimum velocities during wave movement. The spatial distribution of the amplitudes of the wave velocities was calculated. A decrease in the amplitude in the rear part of the cylinder and immediately in front of its frontal part was revealed, and it was also determined that the zone of an increase in the amplitude was formed near the lateral surfaces of the cylinder.
Application of Neural Networks to Assess the Resource Value of Oil-Contaminated Waste Storage Facilities
Authors: Afinogentov A A , Bagdasarova Yu A , Derevyanov M Yu , Pleshivtseva Yu E
Published: February 2022

The article presents a methodology for evaluating the efficiency of oil industry waste recycling systems using multi-layer artificial neural networks. As an indicator of the efficiency of the recycling system, the indicator of the resource value of oil-contaminated waste (OCW) is used. For training neural networks, the data sets are formed using the resource value assessment algorithm based on the Data Envelopment Analysis (DEA) method of multi-factor evaluation of the efficiency of production systems. The development and training of neural networks are performed using the free software Neuroph Studio. A comparative analysis of the quality of the assessment of the OCW resource value depending on the size and number of layers in a multi-layer neural network is carried out. The obtained results demonstrate the prospects of the proposed approach. Recommendations for improving the accuracy of resource value assessment by an artificial neural network are given.
Multi-level Model for Ships Risk Assessment by Coastal Vessel Traffic Services
Authors: Grinyak V M , Ivanenko Y S
Published: February 2022

The article is devoted to the problem of navigation safety of sea vessels’s movement. An approach is considered that allows generating alarm signals with the allocation of various levels of danger. The criterion for the division of hazard levels is based on the trajectory properties of the movement of ships. A system of rules is proposed, which appeals to model representations of the “ship-to-ship” type and allows to streamline the actions of the dispatcher when controlling the collective movement of ships. The results of modelling and field study of traffic in the water area of the port of Vladivostok, which confirm the constructiveness of the proposed ideas, are presented.
Ecological-Mathematical Modeling in Planning Production of Agricultural Products in Conditions of Risks
Authors: Ivanyo Ya M , Petrova S A , Kovaleva E A
Published: February 2022

The article proposes an ecological-mathematical model to optimize the production of agricultural products, taking into account the risks associated with climatic events. The model describes a combination of crop and livestock production on irrigated and non-irrigated agricultural land. In this model, the target function characterizes the maximum income and damage to the environment as a result of farming in conditions of natural risks. Restrictions describe the availability of land and labor resources, production volumes, soil and water pollution, erosion of agricultural land, the combination of crop and livestock products in conditions of severe droughts or heavy rainfall. When implementing the model, a special case was considered: an ecological-mathematical model for non-irrigated lands, taking into account severe drought. The proposed model is implemented on the example of an agricultural enterprise in the Irkutsk region, which is subject to significant risks caused by extreme climatic events, primarily drought.
A Method for Determining the Movement Speed of Suspended Particles by a Water Flow and Its Application in Studies of Sea Estuaries of Rivers
Authors: Antonenkov D A
Published: February 2022

The article discusses the developed technical and methodological tools designed to study the process of sediment transport. A brief description of the device is given, which makes it possible to obtain the data on the movement speed of suspended particles using video recording. The technique of carrying out field experiments is described, on the example of studying the sea estuaries of rivers. The field measurements results are presented. The developed method makes it possible to determine the movement speed of suspended particles, as well as to describe the fine structure of the flow, which is necessary to study the mechanisms of erosion, accumulation and sediments transport.
Use of Mineral Waste of Industrial Enterprises in the Arctic Zone of the Russian Federation
Authors: Tsukerman V A , Ivanov S V
Published: February 2022

The work considers the problems of the mining industry in the sphere of mining and processing waste formation and use by industrial enterprises in the Arctic Zone of the Russian Federation. The methodological basis of the work are the annual reports of enterprises, official documents and scientific publications. In result it was determined that the dynamics and efficiency of waste use by companies differ both in quantitative indicators and in the constancy of growth dynamics and the current situation is characterized by low market motivation and lack of incentives. Proposals to increase the involvement of industrial waste in economic circulation and processing was developed. It was established that it is necessary to involve industrial waste in use because of its potentially valuable consumer properties, to develop and implement low-waste technologies in cooperation with scientific organizations, and to increase the transfer of waste to other organizations as resources for the production of products.
Solving the Problem of Food Security of the Amur Region by Developing Functional Food Products Using Local Raw Materials
Authors: Skripko O V
Published: February 2022

One of the main tasks of the state is to ensure food independence and security. Achieving food security in a particular region is possible, among other things, through the production of healthy food based on local agricultural and wild-growing raw materials. The agricultural sector of the Amur Region is characterized by large volumes of production of non-genetically modified soybeans, and wild berries grow on the territory of the region. These raw materials can be used for the production of functional foods. One of the promising objects for enriching the chemical composition and imparting the properties of a functional food product are jelly desserts. The article investigates the possibility of obtaining gelatinous soy-based desserts using wild berries, a sweetener and a structurant. The inclusion of these components in the recipe allows you to get desserts enriched with vegetable proteins, fats, carbohydrates, minerals and vitamins. Protein gelled desserts prepared according to the developed technology and recipes were highly appreciated in terms of organoleptic characteristics, they have a pleasant appearance and color, strong jelly-like consistency, light fruity aroma, moderately pronounced natural sweet taste and pleasant aftertaste.
Problems of Reducing Air Pollution from Industrial Enterprises in the Arctic Regions
Authors: Tsukerman V A , Ivanov S V
Published: February 2022

The Arctic zone of the Russian Federation (Arctic) is a unique region which ecosystems have low resilience and recovery. The exploitation of natural resources in the Arctic in particular mineral and raw materials as well as oil and gas complexes can lead to negative impact on the environment which consequences of are often irreversible. In this regard, scientifically based proposals to ensure the technosphere safety of the Russian Arctic are required in order to maintain the ecological balance during industrial exploitation which is the most important not only for the Arctic but for the entire planet. The aim of the work is to study the amounts of emissions of pollutants and greenhouse gases into the atmosphere by enterprises that directly operate in the Arctic and develop proposals to reduce the negative impact. The analysis of the largest resource companies as: PJSC NOVATEK, PJSC Severstal (Division Severstal Resources), PJSC “MMC “Norilsk Nickel” and PJSC ALROSA was carried out for the period 2015 - 2019. The analysis showed that there is no reduction in emissions at PJSC NOVATEK while at the enterprises of other companies there is a decrease associated with a reduction in production volumes or the withdrawal of certain enterprises from the company rather than the implementation of new environmental technologies in sufficient quantities. Despite the measures taken by the enterprises for environmental safety the considered indicators do not always demonstrate stable positive dynamics indicating the insufficient effectiveness of the current environmental policy and the need to develop and implement effective innovation resource-saving technologies.
Diagnosing Technosphere Pollution to Form Environmental Policy
Authors: Akhobadze G
Published: February 2022

All The technosphere pollution with various substances has been analyzed considering their impact on human health, depending on the hazard degree. The most frequently occurring in nature hazardous substances have been classified by the degree and class of hazard. The impact of exhaust gases emitted by the recently growing motor vehicle fleet on human health is shown. A new ultrahigh-frequency technique is proposed to monitor the concentration of exhaust gases emitted by vehicles into the atmosphere. Measures are specified that allow reducing the environmental footprint by pursuing a sound environmental policy and introducing innovative technologies.
Possibilities of Using Higher Aquatic Vegetation in the Process of Treatment of Industrial Wastewater from Mining Enterprises
Authors: Gula K E , Golubev D A , Kolobanov K A
Published: February 2022

The paper analyzes the possibility of using different higher aquatic vegetation (HAV) and its effectiveness in the treatment of industrial effluents of mining enterprises. The influence of various factors on phytoremediation processes is assessed: natural and climatic (ambient temperature, air humidity, illumination, water temperature) and chemical (pH of water, content of dissolved oxygen in water, concentration of pollutants in water, presence or absence of organic compounds). The cleaning efficiency of both one and several species of hydrophytes, both semi-submersible and free-floating, was analyzed. It was found that the greatest effect of phytoremediation is manifested with the complex use of groups of higher aquatic plants different in their species composition and place of growth.
Evaluation of Explosive Safety Parameters for Stationary Roofs of Vertical Steel Tanks
Authors: Dusalimov M E , Karimov I R , Khasanov I I
Published: February 2022

The article is devoted to a current problem of the need to increase the explosive safety of tanks. The paper analyzes the causes of explosions in tanks. Constructive solutions of existing stationary tank roofs are analyzed, including with an easily removable sheathing. The required areas of loss of containment of the tank roof are calculated depending on the type of flammable liquid. The dependence of the level of filling the oil product in the tank on the excess pressure during the explosion has been determined. Criteria and requirements have been developed for fixed roofs with easily removable sheathing.
Microbiological Control of Muscle Tissue and By-Products of Grouse on the Territory of the Republic of Sakha (Yakutia)
Authors: Petrova E M , Protodyakonova G P
Published: February 2022

This work is devoted to the microbiological analysis of meat and by-products of hazel grouse in the conditions of the Republic of Sakha (Yakutia), depending on the seasons. The material for the study was the carcasses and internal organs of hazel grouses, obtained in hunting brigades and hunters during the spring-autumn shooting of birds in the Republic of Sakha (Yakutia). Samples of muscle tissue, lungs, heart, liver, kidneys, the contents of the stomach and intestines of hazel grouses were taken from 29 birds for the isolation of E.coli, salmonella, staphylococci and Cl. perfringens. According to the research results, it was found that the intensity of bacterial contamination depends on the season, that the greatest contamination of E. coli, salmonella, staphylococci occurs in the spring, made it possible to determine the species composition of the microflora of the organs and tissues of hazel grouse by the seasons of the year.