bluuebunny/crossref_metadata_2025_split huggingface dataset:
ISDM-Rosleskhoz operation and evolution experience
Authors: Balashov I V , Loupian E A , Bartalev S A , Burtsev M A , Mazurov A A 
Published: August 2021

Abstract
The paper marks the 15-th anniversary of the Wildfires Monitoring Information System of the Federal Forestry Agency (ISDM-Rosleskhoz). Creation and development of the system was partaken by many organizations, including the Aerial Forest Protection Central Base (Avialesookhrana), Space Research Institute of the Russian Academy of Sciences (IKI), Center for Forest Ecology and Productivity of the Russian Academy of Sciences (CEPF RAS), State Research Center “Planeta”, OOO Inkom, Institute of Solar-Terrestrial Physics of the Siberian Branch of the Russian Academy of Sciences (ISTP SB RAS), Saint Petersburg Forestry Research Institute (SPbNIILH). The system provides uniform near real-time information necessary for forest fires and their impact monitoring all over the Russia territory and border areas. The paper highlights main trends and key stages of ISDM-Rosleskhoz development and evolution during the entire operation time span. This constant evolution has made and is keeping the system as the largest fires monitoring industrial system operated by Forest Protection Services both in Russia and in the world. The paper also briefly provides major development directions of the system for the nearest years.
Application of online training in the education of specialists for the production of second generation biofuels
Authors: Fedorova O V , Akim E L , Kuznetsov A G , Pekarets A A 
Published: August 2021

Abstract
In a circular economy, wood is a valuable product, the use of which must be rational. Integrated wood processing includes the use of production waste, for example, when sawing and planning. Raw materials for the production of pellets and fuel briquettes are sawdust, shavings, slabs. The production of second generation fuels is an extension of the life cycle of forestry and woodworking products. The production of pellets made by pressing crushed wood particles has changed the technology of energy use of wood in the ECE region. And, in turn, there was a need for specialists and new jobs.
Possibilities of near real-time forest cover damage estimation based on fires radiative power data
Authors: Lozin D V , Balashov I V , Loupian E A 
Published: August 2021

Abstract
The paper proposes a solution to the problem of operational assessment of forest cover damage based on the fire combustion intensity data. Approaches to the assessment of the considered phenomena are presented. An algorithm for comparing data to study the relationship between them is described. The results of such a comparison are discussed, and on that basis, a method is proposed for the rapid assessment of the degree the forest cover is damaged by fires. The integral estimates of the dead forest areas obtained using the described methodology throughout the country are compared with the corresponding actual values. Summing up the results of the work done, the effectiveness of the developed method is evaluated.
Inter-annual variability of the forest area of different types of surface of the Leningrad region
Authors: Martyn I , Petrov Y , Stepanov S , Abramov V , Sidorenko A 
Published: August 2021

Abstract
In connection with the vast territories of the Russian Federation, accounting for the area of forests and other objects of the forest sector and their changes becomes problematic. At present, this accounting is best carried out thanks to the methods of remote sensing of the Earth. This article presents an example of analyzing the inter-annual variability of forest land areas in the Leningrad Region for the period 2015-2019, according to remote sensing data, using statistics without the use of complex algorithms. All the data obtained are summarized in a table. The analysis of variability of land areas by methods of mathematical statistics is carried out and the year of disappearance of this type in the territory of the region is determined for the most vulnerable types.
Digital twin of wood working enterprise
Authors: Masaev S N , Minkin A N , Yu Troyak E , Khrulkevich A L 
Published: August 2021

Abstract
A review of scientific papers has shown that digital twins are very common for modeling the states of physical objects. It is relevant to consider the creation of a digital twin of an enterprise to obtain various assessments in management, taking into account the human factor. In the research, the impact of the human factor is assessed by the digital twin and staff competencies. The system of goals of staff competencies stands for: cognitive, affective, psychomotor. An enterprise model is created from the description of the set of events taking place on it. Each event is mapped to an element of staff competencies target system. The resulting set of staff competencies is estimated by a universal (integral) indicator. The dynamics of the universal indicator characterizes two modes of operation of the enterprise. The first operating mode is normal. The second mode of operation is based on the implementation of staff competencies. Taking into account the competencies of personnel by Bloom’s taxonomy allows you to determine their interconnection: cognitive, affective, psychomotor. It correlation depends on the work performed by the employee and the influence of the external environment. It depends on the efforts of the employee as a learner.
Digital forest pedagogy in context of distance learning
Authors: Pastukh O A , Zhuk Yu A 
Published: August 2021

Abstract
The article tells of the actual problems of the introduction of digital technologies in the higher education system. The development of digital technologies in all spheres of life is supported at the state level and by the general public. Digitalization is a new social situation.The article describes the current problems of digitalization of education. A wide range of possibilities of digital technologies in the educational process of the St. Petersburg State Forest Technical University named after S. M. Kirov (SPbFTU) is considered.It is concluded that the digitalization of education changes the content of the courses taught, as well as the presentation of information, it is not only presentations or videos, it is already direct connections to information networks, databases, forums.
Forecasting model of forest management fire index at the thematic area of the Trans-Baikal Territory
Authors: Istomin E , Sidorenko A , Petrov Y , Stepanov S , Martyn I 
Published: August 2021

Abstract
The article presents a forest fire forecasting model based on recursive filtering of the fire weather index. The relevance of the study is presented, statistical data are presented, including economic aspects, on the basis of which the scientific task is set. For the approbation, the fundamental issues to be solved have been identified. A geo-information resource is considered that assists in the choice of the study area, while calculating a complex indicator of fire hazard. Data were sampled on the basis of Columbia University’s International Research Institute for Climate Prediction. A recursive filter based on the combination of Kalman and Levinson algorithms is used as the central part of the model. The program model of the filter is presented. Approbation was carried out with a visual result in the form of a predictive assessment graph. General results of work are substantiated.
Hard-to-recover oil reserves as a factor of socio-economic growth of resource regions
Authors: Filimonova IV , Provornaya I V , Komarova A V , Yu Nemov V , Chebotareva A V 
Published: August 2021

Abstract
The article considers the main classification features of the category of hard-to-recover oil reserves. The analysis of changes in the dynamics of production of hard-to-recover oil in Russia is carried out. The relationship between the development parameters of the oil and gas complex and the level of socio-economic development of resource regions using the method of hierarchical cluster analysis is investigated.
Disintegration of a roof coal while developing powerful seams with a controlled coal release
Authors: Klishin V I , Anfyorov B A , Kuznetsova L V , Varfolomeev E L , Borisov I L 
Published: August 2021

Abstract
The technology of thick seam development with roof coal release on the face conveyor which allows increasing the coal flow, reducing the losses and stand-by-time of the stope is worked out by the Institute of Coal of FRC CCC SB RAS. Disintegration of roof coal preparing it for release can be done during gradual advancing of a stope or in advance, applying the method of interval hydraulic fracturing before starting stoping.
The influence of coal and enclosing rock fracturing on the management of the rock massif during the exploitation of thick coal seams by the longwall top coal caving technology
Authors: Klishin S V , Opruk G Yu , Varfolomeev E L , Borisov I L 
Published: August 2021

Abstract
The methods for the disintegration of coal-bearing rock massif have been developed that allow eliminating the areal hanging of roofs in the longwall faces and their dynamic impacts on mechanized complexes, to ensure the safety of reused mine workings in the coal face operation area, and also to create a system of cracks in the coal seam upper side along the entire length of the face and increase the efficiency of preliminary degassing without creating a large number of intermediate mine workings. A technique for the numerical study of reservoir properties of rocks containing a system of cracks is proposed. An algorithm and software for creating two-dimensional stochastic systems of cracks with a given distribution of the coordinates of their centers, lengths, and orientations are developed. Based on the finite element method, the problem of fluid filtration in a fractured massif is numerically investigated. The influence of parameters of crack systems on the filtration properties of the medium is shown.
Developing the methodology on creating unified criterion for diagnosing the mining machinery equipment defects
Authors: Gerike P B , Eshcherkin P V 
Published: August 2021

Abstract
In the framework of the research the consolidation of the results on analyzing vibration parameters, registered during operation of electric shovel energy-mechanical equipment (of EKG and ASH type) was fulfilled. It was done in the respect of solving the problem on improving vibration control methodology and developing unified criterion for diagnosing and forecasting technical condition degradation of open-pit excavator dynamic equipment. Methodology for creating the algorithm for unified diagnostic criteria on the basis of mathematical processing of the existing vibro-diagnostic properties during detecting the defects in rolling bearings and jointing sleeves used in designing electric shovels was worked out. The effectiveness of the introduced approach for selecting diagnostic methodology of obtaining initial data suited for developing unified diagnostic criteria was proved. The results showed the effectiveness of the methodological approach for creating the algorithm of developing unified criterion for detecting technical condition and forecasting the degradation processes of rolling bearings and jointing sleeves used in designing electric shovels.
Substantiating topicality of injectable localizing and deactivation of coal seams prone to endogenous spontaneous combustion
Authors: Mayorov A E , Patrakov Yu F , Semyonova S A , Abramov I L , Nepeina E S 
Published: August 2021

Abstract
The analysis for possible development of endogenous fires in coal seams prone to oxidation and spontaneous combustion is done. The coal free surface area is taken as a forecasting criterion for estimating the state of the zones of broken condition. The effectiveness of applying fracture plugging (cementing) technology for injectable localizing and deactivation of the massif is substantiated. The conception for further studying of the processes for controlling physical and chemical characteristics of a seam considering native properties of coal is formed.
Selection of energy-technological modes of submerged-arc welding with silicomanganese slag for parts of mining equipment
Authors: Kozyrev N A , Usoltsev A A , Kryukov R E , Mikhno A R , Ya V , sellermayer T 
Published: August 2021

Abstract
The paper presents studies of the influence of energy-technological modes of welding on the physical and mechanical properties of welded joints obtained by submerged-arc welding, with the use of slag from silicomanganese production for parts of mining equipment. To study the welding and technological properties, we used a welding flux of 0.45-2.5 mm fraction based on a silicomanganese slag with a chemical composition, wt. %: 0.42 FeO, 16.22 MnO, 29.00 CaO, 41.34 SiO2, 6.53 Al2O3, 1.33 MgO, 0.24 S, 0.022 P, 0.008 ZnO, 0.031 C, 0.31 F, 0.15 TiO2, 0.025 Cr2O3. Automatic welding of 09G2S low-alloy steel under this flux was carried out by Sv-08GA wire. Various welding modes were investigated to ensure the required penetration depth and the absence of external defects (pores, cracks, cavities). Based on the data obtained, the dependences of the influence of the parameters of the welding mode on the mechanical properties of welded samples are plotted. It is shown that changes in the parameters of the current strength, welding speed and voltage can affect the physical and mechanical properties of the weld, as well as the transition of sulfur and hydrogen into the weld.).
Justification of the possibility of application of a neural network for predicting methane release during underground mining of gas-bearing coal seams
Authors: Dvoryanchikov M V , Pavlova L D 
Published: August 2021

Abstract
The mathematical apparatus of neural networks is presented and its application is substantiated for solution of the problem of predicting methane release in underground coal mining. An example of using a neural network for a regression problem in the Matlab software package is given.
Human resources and health and safety management in the production environment of a loading and transport enterprise
Authors: Pristupa Yu D , Shishkina S V , Pavlova L D , Fryanov V N 
Published: August 2021

Abstract
The directions for the improvement of the level of labor protection through personnel management in the process of recruitment, the development of competence and the preservation of the health of workers are substantiated. Using the example of loading and transport enterprise activities, the role of a person as a guarantor of the improvement of a complex organizational and production system safety is determined.
Use of frequency converters in the stator circuit of a doubly-fed induction motor of a hoisting unit
Authors: Yu V , Ostrovlyanchik I , Popolzin Yu , Kubarev V A , Marshev D A 
Published: August 2021

Abstract
One of the currently accepted options for modernizing an induction electric drive is the use of a frequency motor control. In this case, a frequency converter is connected to the motor stator with the ability to control the voltage parameters at its output. Usually, frequency control is applied to induction squirrel-cage motors, including special machines designed for frequency control. In this case, as a rule, the frequency changes “down” from the nominal frequency of the voltage on the stator of the machine, and the speed control range is determined by the minimum frequency of the voltage applied to the stator. At the same time, for motors used in the electric drive of hoisting installations, the speed control range is limited to 2:1 due to the deterioration of the properties of the magnetic system of the machine. Speed regulation below half the rated speed can be carried out using a controlled rotor current converter.
Control system of induction motor drive of a hoisting unit with a controlled current converter in the rotor circuit
Authors: Yu Ostrovlyanchik V , Yu Popolzin I 
Published: August 2021

Abstract
The use of a double-feed machine circuit is a promising way to modernize induction motor drives of mine hoisting installations. The main problem of using doubly-fed electric machine in the electric drives with a large range of speed control is the release implementation and machine operation of after it at low speed. Existing implementations of electric drives based on a doubly-fed machine (DFM) assume the use of additional resistors in the rotor circuit (rotor station) for releasing the brakes, which complicates the control circuit and significantly reduces the reliability of the drive. In this case, the electric drive circuit with additional active resistances in the rotor circuit has optimal starting characteristics, since a change in the active resistance of the rotor does not cause a change in the critical moment, and, therefore, in the overload capacity, which makes it possible to implement the release mode. It is possible to preserve the advantages of regulating the DFM speed by changing the active resistance of the rotor by using an imitation of its change. The article is devoted to the study of the possibility of implementing such mode using a controlled current converter in the rotor circuit.
Detection of centrifugal turbocompressor surge by drive motor current
Authors: Kipervasser M V , Gerasimuk A V 
Published: August 2021

Abstract
The article deals with the case of surging of a turbocompressor unit. Mathematical modeling of the situation under consideration is carried out and its influence on the stator current of the electric motor is estimated. The analysis of the simulation results with the corresponding conclusions is made. A surge detection device is proposed.
Development and substantiation of technological solutions for the transformation of organic matter of fine-dispersed waste coal
Authors: Murko V I , Temlyantsev M V , Litvinov Yu A , Volkov M A , Baranova M P 
Published: August 2021

Abstract
A plant for liquefying organic matter has been create to solve the problems of using low-grade coals and waste coal utilization. The results of the performed studies are presented and the prospects for the solution of existing problem are shown, initial data are obtained for creating a pilot sample of the technological complex.
Corrected mathematical model of transverse oscillations of ropes and shafts of mine hoists
Authors: Borshchinsky M Yu , Kubarev V A , Ignatenko O A 
Published: August 2021

Abstract
The oscillating processes of the rope and the shaft in small movements provoke fretting wear and corrosion at the attachment point. On the basis of the Fourier method, an improved model of oscillating processes has been developed that significantly extends the functionality of the variable separation method. The model adequacy is confirmed.
The assessment of resilience of Russian resource-based regions
Authors: Kagan E S , Goosen E V , Pakhomova E O , Nikitenko S M 
Published: August 2021

Abstract
The article examines contemporary approaches to and the evaluation of “resource dependence” and “resource-based regions”. Resource dependence analysis is based on the data of the Russian Federal State Statistic Service (Rosstat) and customs service statistics from 2005 to 2016. The starting point (2005) was chosen to marking the end of economic restoration after the 1990s steep decline. Moreover, it was in 2005 when the calculation of mining industry share in gross regional product began. 2016 is the last year available. The authors suggest resilience as a new criterion for choosing an optimal development trajectory. For the assessment of the resilience of Russian resource-based regions the authors use the approach of R. Martin, P. Sunley, et al and methods of coefficients calculation for adaptive resilience and resilience adaptability. The concept is regarded as the ability of a region to mitigate external and internal shocks in a short-term perspective, and to choose an optimal development trajectory in a long term one. Results of this study show that 19 out of 85 constituent entities of Russia may be defined as resource-based (resource-dependent). Their resource dependence is different, varying from monoregions to region’s specialization in mining (resource-dependent regions). Analysis of their resource dependence dynamics shows that in most regions resource dependence grows, and their resilience assessment shows that most regions are resilient and tend to retain the selected development trajectory in a long-term perspective.
Industry 4.0. and an upgrade of the business models of large mining companies
Authors: Kagan E S , Goosen E V , Pakhomova E O , Goosen O K 
Published: August 2021

Abstract
With the depletion of easily accessible deposits and the transition of the industry to the Industry 4.0 principles the need for more than just increasing production volumes and applying new technologies including automation and modern digital technologies, but also for solutions to a number of organizational and socio-economic problems faced by this sector. All these problems are in one way or another related to the change in the business model of extractive companies. Under these conditions, studying the features of the business models of the major Russian companies in the extractive sector under the transition to the Industry 4.0 is a relevant research task. The purpose of this article is to characterize the features of business models of large Russian extractive companies operating in the fuel and energy complex and to describe the possible directions of their transformation under the influence of Industry 4.0. Our analysis of the business models of the major Russian mining companies and comparison to their foreign counterparts showed a certain conservatism in Russian companies and the lag in the implementation of digital platforms, despite the interest of companies’ management in using digital technologies. This is largely due to the low willingness of most companies to complicate their business models and to implement digital transformation. Such trends can be explained by the fact that companies tend to choose a vertically integrated model. They are in the early stages of digital transformation and mainly focused on operational aspects. In most Russian mining companies, the level of automation of production and administrative processes is low, and the use of digital technologies is still limited mainly to pilot projects. To achieve a systemic effect from digitalization, it is necessary to combine the efforts of all interested parties – the government, companies, the innovation community, and academic circles.