bluuebunny/crossref_metadata_2025_split huggingface dataset:
Justification of technological parameters for underground mining of gas-bearing coal beds prone to spontaneous combustion
Authors: Meshkov S A 
Published: November 2019

Abstract
The article presents results of the numerical studies of aerodynamic processes in excavated sections of coal mines. The effect of the ventilation and degassing schemes and their parameters on the oxygen content and a danger of spontaneous coal combustion are described. The influence of geological and mining factors on the endogenous fire hazard of the coal bed prone to spontaneous combustion is analyzed. It is recommended to reduce endogenous fire hazards of mining flat gas-bearing coal beds of the Kuznetsk coal basin.
Mathematical model of a plain bearer lubricated with molten metal
Authors: Mukutadze M A , Vasilenko V V , Mukutadze A M , Opatskikh A N 
Published: November 2019

Abstract
The article describes the equation of the flow of incompressible lubricating fluid with micropolar properties for a “thin layer”, the continuity equation, the Darcy equation and the energy dissipation rate formula for determining function F(θ) caused by the molten surface of the bearing sleeve coated with molten metal of the bearing asymptotic solution according to the thermal parameter K. Using the exact solution for the zeroth and first approximations, speed and pressure fields in the lubricant and porosity layers and basic performance characteristics were determined.
Using the heat pump in a combined sintering machine
Authors: Osintsev K V , Tregubova M V , Perekopnaya Y A , Prikhodko Iu S 
Published: November 2019

Abstract
The continuous sintering machine is designed for sintering small fractions of iron ores. Also, this unit allows you to remove harmful impurities from the ore. The exhaust gases have a fairly high temperature. The heat of these gases can be used in various processes. The article proposes to use gases with a temperature above the temperature of the atmospheric air as a source of heat for a heat pump. With a certain design and technological scheme, this method of utilization can be used as a basic technological platform for the organic Rankine cycle. In addition, the circuit can be transformed into a cold supply circuit.
Improvement of operational planning for shunting service on non-public railway lines
Authors: Nechay T. , Roganov V. , Zhashkova T. , Chirkina M. , Lavendels J. , Korop G. 
Published: November 2019

Abstract
This article describes the problems, which arise when planning the shunting work on industrial railway transport, as well as suggests the ways of solving them. There are special feature specified here, which differentiate the shunting work at enterprises from the work, performed by the main transport. The necessity has been revealed and explained for the development of an automated software system, which will allow objectively evaluating the operational situation and choosing the most suitable option for performing the shunting work. There are basic optimization techniques described, which are used in the software product developed, as well as their importance and necessity has been substantiated. The main methods include: improvement with the help of registering the radii and curvature radii and curves of traffic areas; consideration of dependence of fuel consumption by shunting locomotives from the execution modes of shunting half-runs and the availability of time reserves; route selection depending on its length, the number of railroad switches, speed restrictions and travel time. Combination of existing methods of improving the shunting work with new proposals in one software package will allow receiving a convenient tool, assisting in operational planning, as well as in the identification of traffic bottlenecks and their management strategies. Computerization and automation of transport processes will have a positive impact on the development of connecting tracks and will help to improve the interrelation of the industrial and main line.
The algorithm of optimization of parameters of a dual-mass electromechanical system of manipulators
Authors: Savosteenko N V , Semenova M S , Semenova K D , Maksimov N M 
Published: November 2019

Abstract
This article deals with the optimization criteria for a dual-mass electromechanical system, the choice of which is made according to three generalized parameters: the frequency of the mechanical resonance of a single-mass system, the electromechanical time constants of the electric motor and the working mechanism. In addition, a technique was developed for selecting the gear ratio of the gearbox.
Surface quality of the plasma cermet coatings after grind finishing
Authors: Zverev E A , Skeeba V Yu , Vakhrushev N V , Lobanov D V , Martyushev N V 
Published: November 2019

Abstract
The paper presents the study results of the grind finishing effect on the surface quality of cermet wear-resistant coatings obtained by plasma spraying of mechanical mixtures. The main component for the formation of mixtures was alumina with additions of nickel or cobalt powders. The sprayed compositions surface analysis indicates the structure specificity of cermet coatings. The presented typical images of topographies and profilograms of the investigated compositions surfaces show that coatings of nickel-ceramic mixtures have an acceptable level of roughness after grind finishing.
Wettability and formation conditions of reservoirs
Authors: Malyarenko A M , Bogdan V A , Kotenev Yu A , Mukhametshin V Sh , Umetbaev V G 
Published: November 2019

Abstract
The analysis of the relation between the wettability of mineral substance, the porosity and permeability properties of the rock and the nature of the distribution of hydrocarbons was made based on the core samples of the BS-1 and BS-2 productive strata of the Surgut oil and gas field. It was proposed to study the association of hydrophobic, hydrophilic, and mixed groups of collectors to different facies.
Models for combining facilities and resources of renewable energy in the process of cogeneration
Authors: Alabugin A A , Liu Z , Ji R , Wang T 
Published: November 2019

Abstract
The possibilities of the author’s methodology for managing the integration of resources and the imbalance of the goals of technological development of complex systems for studying the processes of combining objects and cogeneration of several types of energy are revealed. The object of research is a set of objects using a combination of traditional and renewable energy resources, and the subject is a mechanism for controlling the combination of objects and resources under the conditions of cogeneration of several types of energy. On the basis of the economic and mathematical model, mathematical and methodological problems were solved, which confirmed the increase in controllability of energy and environmentally efficient processes and the synergistic effect of combining objects and resources for the cogeneration of several types of energy.
Experimental estimation of specific heat of combustion of agglomerated peat fuel
Authors: Kokonkov A A , Lyah D D , Ivanov S L , Stroykov G A , Ivanova P V 
Published: November 2019

Abstract
Nowadays, the development of remote regions of Russia related to energy security is increasingly relevant. Existing production technologies have a significant anthropogenic impact on the environment. To reduce the negative consequences of this impact, it is necessary to develop complexes of mining equipment capable of complex processing of excavated peat-wood raw materials and prepare them for further operations on the production of finished products. The article describes a chipping machine for preparing peat-wood mix for molding into briquettes. A description of the experiment on the calorimetric installation of the company IKA model C200, based on the estimation of the calorific value of agglomerated fuel from peat-wood raw materials, is given. It is shown that peat briquettes do not significantly differ in their calorific value from peat briquettes, and at the same time, they have greater strength compared to the latter.
The use of drive turbine cooling systems based on renewable energy sources
Authors: Osintsev K V , Tregubova M V , Perekopnaya Y A , Prikhodko Iu S 
Published: November 2019

Abstract
The mechanical energy of the turbine is converted into electric energy by means of a rotating magnetic field of the rotor in the stator. The voltage and current in the rotor windings create a thyristor excitation system. The generator on the shaft of the central turbine usually has problems with cooling the turbine. The progress of turbine construction mainly depends on the success in solving this problem today. The article describes the main scientific idea of improving the efficiency of electric generators, namely the possibility of using renewable energy sources. For the first time, data on the possibility of using cooling systems based on renewable energy are presented.
Use of geothermal energy from abandoned oil wells
Authors: Gabdrakhmanova K F , Izmaylova G R , Kuleshova L S , Gabdrakhimov V E , Gimaev E V 
Published: November 2019

Abstract
Abandoned oil wells, low-rate oil wells can be used as low-temperature geothermal resources. Geothermal power generation from abandoned wells is a new way to utilize geothermal energy. The paper presents a model for using geothermal energy from abandoned wells. The paper analyzes the use of freon as a main working fluid.
Problems of using tool assemblies in CAM system
Authors: Basova T V , Basova M V 
Published: November 2019

Abstract
This article is devoted to the main problems of using tool assemblies in the CAM system when developing control programs for CNC machines using the example of Siemens NX9 CAM system. One of the main difficulties in developing control programs is the likelihood of mismatching tools in the CAM project and in the cell of the machine shop, and therefore this requires the use of measures to reduce the risk of errors. Using libraries of tool assemblies automates the work of a programmer-technologist due to the availability of ready-made tool models and ensures consistency of cutting conditions between different CAM projects. NX9 has two options for creating an instrumental assembly and their libraries: by manually entering information and using automatic data import. When automatically importing information about a tool, it is necessary to standardize the description of the tool and its components in accordance with certain standards, such as ISO 13399, therefore, without the use of a single standard, creating a tool library is impossible. The example of creating a parametric instrumental assembly by manually entering information demonstrates an increased risk in the event of an error, as well as the need for a complete description of the tool.
High accuracy nondestructive measuring of the thickness of transparent solid and liquid films
Authors: Fedortsov A B , Ivanov A S 
Published: November 2019

Abstract
Polymer nanocomposite films can be made impenetrable to air, light, aromatic substances, steam. This stipulates their wide use for packaging, primarily food products. Such films thickness control is an important technological moment of their manufacturing, and it must be non-contact and non-destructive. Most of films made of nanocomposite polymers are transparent to visible and infrared light. In this article a new method of the data processing aimed to determine the film thickness from the angle dependence of the laser beam reflection coefficient by the film is offered. The offered procedure and the experimental technique realizing it permit to decrease the thickness determination uncertainty to 150 nm while measuring the film thickness in the range from 0,01 mm to 1,0 mm.
Introduction of additional inertial couplings in mathematical models of problems of vibration protection and vibration isolation
Authors: Kargapol’tsev S K , Gozbenko V E , Karlina Yu I , Karlina A I 
Published: November 2019

Abstract
The article considers forced vibrations of a four-axle vehicle with a double spring suspension. The motion of a system with six degrees of freedom can be represented with sufficient accuracy by a system with two degrees of freedom. Therefore, the vehicle body has two degrees of freedom: lateral motion and wabbling, bouncing and pitching of trolleys will be neglected. The total number of degrees of freedom of the model is two. A method that leads to a closed solution for steady-state oscillations is considered. As a result of the research, differential equations of motion of the system were generated and an analytical solution was obtained for the case of application of an external piecewise constant driving force.
Acoustic-emission diagnosis of technical objects based on the information and kinetic approach
Authors: Nosov V V , Grigoriev E V , Pavlenko I A , Gilyazetdinov E R 
Published: November 2019

Abstract
An analysis of trends in the development of resource assessment methods is given, a multi-level information-kinetic approach to acoustic emission diagnostics is described, its methodological relationship with the traditional experimental method of resource assessment is shown. The informative multi-model diagnostic parameters associated with various scale level strength characteristics of structural materials and resource technical objects are given. Examples of resource assessment of welded joints and rolling bearings are considered.
Methods of acoustic emission estimation of nanocharacteristics of the strength of structural and engineering materials of the objects
Authors: Nosov V V , Grigorev E V , Gilyazetdinov E R , Pavlenko I A 
Published: November 2019

Abstract
During the period of production and exploiting of materials, complex physicochemical processes of interaction of their components with each other and with the environment take place. Identifying the mechanisms of this interaction will help to understand its various aspects and to optimize the technological processes of manufacturing materials with desired properties. The solution of this problem can be based on the interpretation of the results of acoustic emission (AE) tests from the standpoint of a multilevel model of the time dependences of the parameters of AE heterogeneous materials.
Modeling and optimization of processes of transportation of heavy cargoes based on the automation of monitoring systems for the motor vehicles movement
Authors: Safiullin R N , Reznichenko V V , Gorlatov D V 
Published: November 2019

Abstract
This article presents the results of a study of the causes of destruction of the roadway. This allowed one to identify the relationship between the movement of heavy trucks and excessive wear of road structures, as well as to develop management and infrastructure solutions to ensure optimal planning of transportation of heavy goods with a view to reduce the impact on roads.
Telecommunication systems of mines and underground structures based on PLC
Authors: Shpenst V A 
Published: November 2019

Abstract
The possible options for the integration of telecommunications and electrical systems of mining enterprises are considered. Based on an analysis of the current state and prospects for the development of telecommunications systems, various technical solutions are proposed for sharing the power supply networks available in mines and underground structures in order to solve the problems of telecommunication, automate process control and ensure the safety of operations. The analysis of the possibilities of applying the PLC technology in underground structures and mines for solving specific telecommunication problems has been carried out, and examples of their possible technical and hardware implementation are given.
Investigation of the state of materials of power lines by multispectral optical-electronic devices
Authors: Shpenst V A 
Published: November 2019

Abstract
This article describes the basic methodological aspects of designing multispectral optoelectronic devices for the remote inspection of overhead power lines. A method for selecting operating spectral areas for these devices was suggested on the basis of the proposed detection criteria. The proposed method considers physical phenomena that occur during the visual inspection and detection of objects. It allows the rational selection of operating areas of a multispectral device, including the number, width, and location of these areas in the optical spectrum. The author determines that effect of the spectral area width on object detection probability can be estimated by the correlation between spectral and integral contrasts. The optimal operating areas for multispectral devices with direct image visualization are selected according to the developed method.
Modern instruments and technologies for measuring random signal characteristics
Authors: Sytko I I 
Published: November 2019

Abstract
Based on modern computer technologies developed by National Instruments, a virtual device has been developed to adjust, control and study noise characteristics of various radio-electronic devices. Examples of distribution laws for random signals based on smoothness or sharpening, asymmetry and uncertainty were provided. It is shown that the method identifies the laws of distribution of random signals in comparison with other methods, and the virtual instrument technology and the electronic device with a data acquisition board monitor the technical state of electronic devices by their noise characteristics.
Energy saving when measuring the flow rate of Russian oil wells
Authors: Davydova O V 
Published: November 2019

Abstract
The paper describes the design of a mobile unit for measuring oil, water and associated gas flowrates. The source of electrical and thermal energy used by the measuring unit is a fuel cell battery which uses associated gas released from the products by means of a separation plant. The autonomous power source allows for saving a significant amount of electricity and makes it unnecessary to lay power supply communications at the initial stage of oil field development.
An integrated approach to strip mining of peat
Authors: Mikhailov A , Zhigulskaya A , Garmaev O 
Published: November 2019

Abstract
The innovative technology of peat extraction promoting power and resource-saving is offered. Completeness and complexity of peat field useful components extraction are provided on the basis of the nature protection principles of rational environmental management. Strip mining is the mining of a relatively flat field. Preparing the area after its drainage involves a basic series of technological procedures: collecting of wood wastes and removing to the storage, deep milling of the top layer; small wood residues collecting and removing to the area; field surface leveling and profiling (7 peat machines). Preparing the area after its drainage with the excavation of the top layer involves another series of technological procedures: collecting of wood wastes and removing to the storage, deep milling of the top layer; collecting and removing to the storage material for the top layer; field surface leveling and profiling (5 peat machines). In the proposed flowsheet with deep peat milling the top layer is loosened and mixed (roots of trees, shrubs, parts of grass and moss vegetation, woodchips, peat of small decomposition degree). Then the whole layer is removed from the peat field for special treatment. For peat production, there is an undisturbed peat deposit surface, clear of a waste layer.
Selection of a rational authentication method for the remote systems of interaction with the vessels
Authors: Karetnikov V V , Butsanets A A , Mitrofanova A V 
Published: November 2019

Abstract
Scientific and technical progress in the development and creation of software and hardware systems has a positive effect on improving the efficiency of water transport operation. The developed systems solve both general and particular tasks. Remote technical condition monitoring systems are used to solve particular problems, for example, to control fuel consumption. The vessels remote control systems are considered as larger ones. Obviously, only wireless means of communication between the remote user (operator) and the vessel are provided in them. The purpose of the paper is to determine a rational approach to ensure the information security for the remote systems of interaction with vessels. The main approaches to ensure the safe use of resources (Password authentication and authentication with one-time passwords, biometric authentication, authentication with a public key, authentication protocols and cryptographic methods) are considered and evaluated by the expert assessments method. Information security threats for the above-mentioned systems of remote interaction with the vessels are highlighted. It has been determined that for remote control systems it is highly expediently to use the cryptography methods with encryption, and for the remote technical condition monitoring such protection is not expedient, but the password authentication (including authentication with one-time password) is sufficient. Further directions of researches will be the elaboration of the specific solutions for selected means of security providing.
Impact assessment of various factors on operational efficiency of ESCP
Authors: Mamchistova E I , Levitina E E , Nazarova N V 
Published: November 2019

Abstract
The application analysis of two systems of maintenance of wells equipped with ESCP in the conditions of Western Siberia is presented in the article. The diagrams of coefficient dependence of technical readiness on time between repairs, failure factor are constructed on the basis of calculations. Recommendations for use of a maintenance and repair system (MRS) are made.
Development of mathematical model of oil and gas wells drilling based on use of energy transmitted to bottom hole
Authors: Spasibov V M , Kyliabin G A , Kozlov V V , Logachev V G 
Published: November 2019

Abstract
A mathematical model of the well deepening process based on use of energy supplied to bottom-hole and used for rock destruction is considered. On the basis of this model, it is possible to obtain partial models for automated control of drilling, as well as a graphical model of technical and technological characteristics of the hydraulic bottom-hole motor (HBM) intended for effective bit drive selection.
On rock deformation during hydraulic fracturing in horizontal wells
Authors: Verisokin A E , Luk’yanov V T , Kutovoy A S , Gun’kina T A 
Published: November 2019

Abstract
The article studies problems of rock deformation during the hydraulic fracturing in horizontal wells. The schemes show stresses acting on the rock during the fracturing. The article analyzes the Prats equation showing that powerful deformation processes can occur during fracturing operations in tectonically active areas. Schemes of deformation processes during the multi-stage hydraulic fracturing and formation fluid selection are presented. The rock mass above the reservoir between the cracks in the unperturbed part is held in zones with initial reservoir pressure (reference zones). The sizes of these zones decrease with an increase in the sizes of the well drainage zones and become destroyed. When the drainage areas are closed, the rock mass moves over the reservoir between the cracks. An increase in the number of hydraulic fracturing stages and a decrease in the distance between fractures can cause seismic manifestations during hydrocarbon production, especially in tectonically active areas.