bluuebunny/crossref_metadata_2025 huggingface dataset:
The role of information technologies in ensuring banking security
Authors: Kondratyeva M N , Svirina D D , Tsvetkov A I
Published: February 2021

In this paper, using practical examples, the author dwells on the possibilities of innovative technologies in banking. The necessity of implementing modern security systems to create a safe business space for banks is substantiated. The main trends and leading technologies in the area of information security are considered. The importance of tracking threats and risks associated with user information and resources in a fast and timely manner is emphasized. The article highlights modern information technologies and methods aimed at strengthening business processes, the implementation of which increases security of financial organizations and their ability to resist external threats. In the article, the technologies and methods described include Paperless Office technology, deactualization risks, social engineering, biometric identification, psychology of information security (from here on, IS-psychology), regulatory and supervisory technologies. The advantages and disadvantages of modern information approaches to solving problems of external threats discussed in the article are described. The objective of this research is to justify and reveal the importance of innovative technologies in maintaining the necessary level of security, as well as improving the protection and resilience of domestic banking systems in terms of external threats. General scientific methods are used as research methods: analysis and synthesis, generalization, interpretation of graphic information, as well as statistical analysis. The results of the study allow to claim that the development of innovative financial technologies and the digitalization of business processes in banking lead to systemic contradictions in the balance between the potential benefits of and damage to the system of financial relations. On the one hand, the emergence of modern innovative technologies provide the opportunity for the banking sector to improve and modernize the processes of its activities, and on the other hand, the very same advanced technologies can be used by scammers, which produces a detrimental effect on both banks and consumers. It appears to be so due to the fact that advanced technologies are relatively new and just being implemented into banking, which is characterized by the presence of both merits and downsides.
PID controller in the steering unit with the Ackermann principle
Authors: Mishin S A , Vasilyev S A , Limonov S E
Published: February 2021

The scientific article offers a model of a commutator motor control based on the study of actual data received from the shaft position sensor. As a result of theoretical research, the feedback control of the electric motor was realized. The tractor steering system was studied to adjust the steering shaft position correctly in real time. It should be noted that the error of angular velocity control was less than 2%.
Investigation of stripline parametric passive radio transponders
Authors: Babanov N Yu , Klyuev A V , Lartsov S V , Samarin V P
Published: February 2021

The results of the study of strip parametric passive radio transponders are presented. Stripline parametric passive radio transponders are made in the form of a system of three parametric generators connected to the pump signal strip antenna and the response signal strip antenna. The results of numerical and field experiments are presented for a pump signal frequency of 800 MHz and a response signal of 400 MHz, which are in good agreement.
Cooperative self-configuring nature-inspired algorithm for a scheduling problem
Authors: Semenkina O E , Popov E A , Semenkin E S
Published: February 2021

One of the crucial challenges related to operational manufacturing planning is an optimal plan search in the current situation using a workflow model. The problem solving is greatly hindered by the rapid growth of the search space with an increase in dimension or the so-called combinatorial explosion. This paper uses two different approaches to solving a hierarchical scheduling problem based on different solution representations. The first approach assumes a search of an optimal project order and then solving of resource-constrained project scheduling problem (RCPSP) for each of the projects using a model based on the greedy principle. In the second approach we are searching for priorities of all actions of all projects and then use them in the process of building a schedule if there are any conflicts when choosing the next action. To solve the problem with both approaches, the paper considers some nature-inspired algorithms such as the intelligent water drops algorithm (IWDs), a genetic algorithm (GA) and ant colony optimization (ACO) as well as a self-configuring version of the last two. The paper shows the efficiency of the application of the coevolution algorithm using IWDs, self-configuring GA and ACO.
Algebraic analysis of SM4 cipher using SageMath
Authors: Maro Ekaterina
Published: February 2021

The article consider possibility of applying the algebraic analysis method to the Chinese national standard (SM4 cipher). Research presents approaches to algebraic analysis of the reliability of symmetric block ciphers by solving Boolean satisfiability (SAT) problem. The principle of formation of the SAT problem for algebraic analysis of SM4 cipher is proposed, as well as the parameters of the obtained SAT problems.
Synthesis of an automatic temperature controller with sequential switching on of the correcting links
Authors: Antipin D Ya , Bondarenko D A , Vorobiev V I
Published: February 2021

The paper presents a method for the synthesis of an automatic control system regulator by means of integral assessment, which provides tuning to the technical optimum in the case when the object of control is a high-inertia process - control of the temperature of the traction motor. The proposed correction scheme assumes that a PI controller and a low-pass filter are connected in series together with the control object. The data obtained as a result of the modeling indicate satisfactory values of the quality criteria of the control process. It was found that overshoot and control time in a closed-loop automatic control system increases with an increase in the temperature setting, with an increase in the initial temperature, overshoot decreases, control time increases, with an increase in the load current of the traction motor, overshoot decreases and control time increases.
Use of the modern information technologies for continuous monitoring of transport infrastructure
Authors: Zolkin A L , Domracheva E A , Losev A N , Avdeev Yu M
Published: February 2021

The concepts of universality and general applicability of information networks as well as the issues of using networks in specific directions are considered in the article on the example of the convergence of transport infrastructure and information networks. An analysis of modern information networks has been carried out and the following three main directions have been identified: infrastructure as a service, platform as a service, software as a service. The article examines the issues of automation of the customer relationship management by introducing a CRM system in order to improve transport support and logistics services provided by companies at the competitive market of logistics services. The basic principles of convergence of information networks and transport infrastructure are presented on the example of a transport and logistics system. The issues of use of the modern information technologies for continuous monitoring of transport infrastructure are considered.
Applicability of information technologies in energy conservation
Authors: Gorohov M M , Vologdin S V , Ponomarev S B , Popova N M , Ponomarev D S
Published: February 2021

The article describes the computational complex designed for large-scale mathematical modeling and optimization of intra-quarter thermal regimes heating networks. Developed software allows to manage all users of thermal energy and carry out its accounting. On its basis, a strictly analytical system of targeted budget subsidies to individual consumers of thermal energy can be built, taking into account the social norms of housing, the estimated and actual power of heating devices, the location of the apartment in the house and the state of its enclosing structures. The article concludes about the effectiveness of the proposed mathematical modeling method in the organization and effective management of ensuring energy saving in the design of heating networks.
Neural network technologies in system synthesis
Authors: Filatova O E , Bashkatova Yu V , Shakirova L S , Filatov M A
Published: February 2021

Work of artificial neural networks does not ensure the identification of order parameters (which are the principal diagnostic characters xi
in biomedicine). We suggest to eliminate the 1st type uncertainties (when samplings xi
statistically match for different physiological states of a human body) by introducing random setting of initial weight values wio
of xi
and subsequent multiple repetition (n≥1000) of artificial neural network settings. The xi
ranking is made according to the weight samplings wi
collected after such settings are applied.
Structural synthesis of converters of natural temperature differences
Authors: Aleynikov A F
Published: February 2021

The work is aimed at using structural synthesis methods to find the principles of operation of a heat converter operating in mountainous regions and outer space. The idea of a converter of temporary temperature differences in motion is proposed. The technique is based on the structure synthesis of substance and energy transformations with selection of the most rational combinations of physical phenomena and using of material properties where said phenomena manifest themselves. It has been considered the operation principle and described the construction of heat converter engine which can operate under extreme conditions, for example, with elevated radiation and low temperatures in space.
Mathematical characterization of fluid compressibility impact on fluid drive’s output parameters
Authors: Lunev A S , Sokolov D A , Litvinchuk M V , Dunaeva S P , Andreychikov I V
Published: February 2021

All hydraulic drive fluids may contain undissolved gas to varying degrees. The urgency of an issue is induced by the fact that the high compressibility of liquid and gas mixture can affect the characteristics of fluid drives. The article concerns mathematical model of fluid drive which allows assessing the degree of influence of working fluid gas content on the character of parameter changes.
Research of problems of computer networks expert systems
Authors: Zolkin A L , Losev A N , Gridina D V , Aygumov T G
Published: February 2021

The article is dedicated to the issues of development of expert systems in data-processing networks during web programming. The dependence of the processing, storage and transmission of information and web applications on the uniqueness and problematics of expert systems creating is observed. The process of development of a software control block of content (engine) as the own control system is considered in details; vulnerabilities and a set of necessary functions inherent in the specified engine are explored. Each new developed software engine can be exposed to unauthorized access and content theft, in this regard, sometimes it is worth considering the percentage of uniqueness of the development methodology and code. In this case, the control block (engine) must be written using its own unique variables and file names, which will help secure the site from third-party interference and will not require the purchase of more expensive hosting for its placement. In addition, the article investigates the problems associated with the threat posed by malicious programs in computer networks, such as direct DDOS attacks, identifies the features of such programs, and also provides ways to combat them.
Algorithms for implementing optimization models for developing multi-version software for spacecraft control systems
Authors: Efremova S V
Published: February 2021

In this paper, the author discusses conventional algorithms for implementing optimization models for developing multi-version software for spacecraft control systems. The proposed algorithms are represented by implicit search procedures, including an implicit search algorithm with the search area being intersected by neighboring points, and a set of algorithms based on the general scheme of the branch and boundary method.
Mathematical model of the waveguide pipe heating in the process of induction brazing
Authors: Tynchenko V S , Milov A V , Kurashkin S O , Petrenko V E , Tynchenko Ya A , Rogova D V
Published: February 2021

The article presents a mathematical model of pipe heating in the process of induction brazing of waveguide paths. The object of research is the technological process of induction brazing, in particular, the regularities of energy distribution over time over the volume of the pipe Assembly of the waveguide path. The purpose of creating the model is to improve the quality of control of the production process of waveguide paths based on induction heating. The presented models will be actively used in the development of an algorithm for adaptive (intelligent) control of the technological process of induction heating of waveguide path assemblies in order to achieve uniform heating of the brazed elements to form a high-quality one-piece connection.
The Kulish-Sklyanin type hierarchy and spectral curves
Authors: Smirnov A O , Gerdjikov V S , Aman E E
Published: February 2021

A poorly studied version of the three-component vector nonlinear Schrodinger equation, called the Kulish-Sklyanin model, is considered. Using the Dubrovin method, we obtain recurrent relations that allow us to obtain all equations from the corresponding hierarchy. The first two equations of the Kulish-Sklyanin hierarchy are found. It follows from these equations that the Kulish-Sklyanin model is associated with a rather non-trivial nonlinear interaction of the solution components. In particular, it is shown that the behavior of the third component of the solution of equations from the Kulish-Sklyanin hierarchy is completely determined by the parameters of the other two components. The equation of the spectral curve of the solution in the form of a plane wave is obtained.
Analysis of information security issues in corporate computer networks
Authors: Lavrov E A , Zolkin A L , Aygumov T G , Chistyakov M S , Akhmetov I V
Published: February 2021

This article discusses the main problems associated with information security in corporate networks and ensuring the reliable operation of information systems and the services they provide. Information security is understood as the security of information resources and information systems, as well as the supporting infrastructure from accidental or deliberate influences of a natural or artificial nature, fraught with harm to the owners or users of information resources. Currently, there are major changes in information security issues. They relate to the methods of work of attackers, the conditions of crimes commited in the computer sphere, as well as the consequences of illegal activities.
Cognitive radar control system using machine learning
Authors: Nepryaev A A
Published: February 2021

Cognitive radars are systems based on the percept-action cycle of cognition that sense the environment, extract relevant target and background information from it, and then adapt the radar sensor to optimally meet the needs of its mission according to the desired target. The aim of the study is to determine the options for using the cognitive approach to improve the performance of the radar system. The study results show the criteria by which a radar should be defined as cognitive. In addition, our task was to propose machine learning methods based on artificial neural networks for the problem of radar resource allocation.
Cyber-physical object tracking system
Authors: Shukalov A V , Zharinov I O , Zharinov O O
Published: February 2021

There is a task being studied how to control a separate technological aggregate as a regulation object. Information connections between the technological aggregates functions and regulation algorithms are being studied, which are used in the cyber-physical object surveillance systems. There is a two closed loops scheme of electrical-mechanics of the following system given functioning as a mono-aggregate. The stabilizing closed loop is to regulate variables being controlled given with shift and day tasks. The control closed loop is to regulate linear, axis and executive positions of aggregate organs in its coordinates system. The control object is controlled with different regulators influence. The scheme feature is its control object adaptation to the regulating influences with changing in time parameters, which are being translated from the virtual environment to the aggregate with an industrial net. The regulator interface and the aggregate reference model placed in a cloud is done by the Internet of Things. The aggregate regulation is done with settings related to the technological parameters being controlled.
Evolutionary algorithm for automated formation of decision-making models for predicting the safety of opioid therapy
Authors: Lipinskiy L V , Melnikova O D , Polyakova A S , Evseeva S A , Bobrova O P , Shnayder N A , Zyryanov S K , Petrova M M , Dychno Y A , Zobova S N , Bobrov A V
Published: February 2021

In this paper, an evolutionary algorithm for solving the problem of predicting the safety of opioid therapy for patients with pancreatic cancer is proposed. Opioid analgesics such as fentanyl and morphine are used as a therapy for pain syndromes. Using the patient database, based on the results of the therapy applied to them, it is determined whether there is a correlation between the outcome and the combination of input data taken into account. To find a set of informative features, it is proposed to use the genetic algorithm for multi-criterion optimization, in which two criteria are reduced to one generalized criterion using the method of “additive convolution”. The formed combination of the selected input features, which affects the outcome, is used to build a decision support model and to evaluate it afterwards.
Development of a module for broadband detection of digital transmissions for a radio broadcast monitoring system using parallel computing means
Authors: Sokolova A N , Soboleva E V , Nimatulaev M M , Petukhova M V
Published: February 2021

Short-wave communication is a means of trunk, zone, mobile and industrial communication for general and departmental use. Taking into account its technical potential, economic efficiency, strategic role as a necessary reserve, the task of monitoring the use of radio frequency resources in the short-wave range remains relevant. The main problem is the search for digital modes of transmission in the entire shortwave band. The purpose of the study is to develop a module for broadband signal detection operating in real time and integrate it into an operating radio monitoring system. The methodology of the work includes an analysis of the literature of foreign and domestic authors on solving monitoring problems, methods for detecting signals in the short-wave range; method of systematization and generalization of facts about the problems of choosing software and hardware for broadband signal detection. The features of short-wave communication have been studied, and the choice of comparison of signals has been made in this paper. The choice was made taking into account the computational complexity of the algorithms. Modules of broadband and narrowband signal detectors have been developed, the places of their integration into the existing radio monitoring system, as well as interfaces for their interaction, have been determined. During the pilot industrial operation the developed modules effectively coped with the solution of the problems of radio monitoring of the short-wave range in real time, so appropriate conclusions are formulated.
Remote control system for the unmanned floating platform
Authors: Dudnikov S Y , Vertegel V V , Golovin V V , Tyschuk Y N
Published: February 2021

The paper presents the results of modelling the coverage areas of a communication system in the Wi-Fi range for organizing a wireless data transmission channel between the coastal and onboard control subsystems of an unmanned floating platform, for which the main navigation zones near the coast are determined. It is shown that the use of a communication system based on the IEEE 802.11 standard makes it possible to ensure stable data exchange within the specified navigation zones of the unmanned platform. A generalized block diagram of a remote control system for an unmanned floating platform has been developed. It includes a video surveillance subsystem and a subsystem for engine control and collection of metrological data from various sensors. In this case, the floating platform is controlled both from a stationary post and using a mobile console. Functional diagrams of the onboard video surveillance and control system, as well as the coastal subsystem have been developed.
Specificity of information clustering in application to the problem of messages classification in social media
Authors: Moiseev D V , Lukina L I , Mikhailova O S
Published: February 2021

The paper presents research and development materials obtained by a team of authors that co-working at the Department of information technologies and computer systems of Sevastopol state University within the framework of an internal grant “Development of agent-based modeling and big data methods for social media analysis in post-conflict societies (grant №28/06-31)». To perform the task of clustering messages in social media, it is necessary to take into account that not only the power of the clusters themselves, but also the power of many clusters can be variable relative to time intervals ti
, t

i+1, …, tK
. Next, we will discuss the problem statement and some aspects of decision-making on classifying messages in social media in the framework of dynamic clustering.
Optimization of the automated technological complex mechanoprocessing using the modified genetic algorithm
Authors: Sekirin A I , Savkova E O , Shumaieva O O , Chengar O V , Shevchenko V I
Published: February 2021

The article discusses the issue optimization of the equipment loading schedules for automated technological complexes using genetic programming. Criteria for evaluating the effectiveness of the resulting schedule are determined. A two-level chromosome is proposed, containing information on the size the batch each type of detail and the sequence of their launch into production. A modification of the two-point crossing-over and the mutation operator has been developed, in which values are exchanged between two randomly selected chromosome elements. When a conflict occurs in the repeatability of string elements, a chain transformations is built based on the known chromosome regions, which give a one-to-one mapping. An object-oriented model of the work of automated technological complexes is used as a fitness function. The proposed modified genetic algorithm makes it possible to obtain suboptimal schedules of the complex operation within an acceptable time date.
Analysis of training of deep neural networks with heterogeneous architecture while detecting malicious network traffic
Authors: Chastikova V A , Zherlitsyn S A , Volya Y I , Sotnikov V V
Published: February 2021

The given article presents the study of the training process of a composite heterogeneous neural network with deep architecture. A brief description of the architecture of the analyzed neural network system has been given. The key nodes of computational load distribution on each of the layers of the neural network have been tracked. The monitoring results have been analyzed and the following conclusions have been made: the most resource-intensive part of the system during training is the LSTM network. The results of the study of structural features of the neural network hidden layers have been presented. Graphs have been constructed and there has been carried out the study of a statistical distribution of weights on each unique layer of the architecture: on a fully connected layer, on the first hidden layer of the subnet-encoder, on the second hidden layer of the subnet-encoder, on the first and second fully connected output layers of the neural network. Based on the research results, a qualitative assessment of the effectiveness and accuracy of the entire neural network system has been given.
Capsule neural nets for graph objects classification
Authors: Maikov K A , Smirnov B N , Pylkin A N , Bubnov A A
Published: February 2021

A new way to solve the graph classification problem is addressed. The main method utilized is the application of a capsule neural network on graphs. The results achieved include, firstly, the enhancement of the base algorithm for training a capsule network with the possibility of using graphs as an input (a stage of training for permutation invariants of graph vertices’ transformation matrices is included as well as a memory block for trained matrices), and secondly, a proposition of a training set of labeled graph objects, transformed from the MNIST dataset. This opens a perspective for a better classification of graph objects due to preserving of their structure and transformation invariance between layers.
Integrity of information data flow in meteor communication networks
Authors: Bozhuk N M , Skripnik I L , Ksenofontov Yu G , Malyshev V P , Avdeeva M O
Published: February 2021

The paper considers the issues of ensuring the integrity of the flow of information messages between remote objects and identification of the data transmission channel, interrupted randomly by fragmentation-defragmentation processes of this flow as a result of the stochastic appearance and disappearance of traces from meteors burning in the ionosphere, which are used as passive repeaters of VHF radio signals that carry out energy contact between correspondents of a computer network. The problem is posed to implement an algorithm for discontinuous transmission of a continuous data stream over a meteor communication network without distortion and loss of transmitted messages without the inclusion of redundant signs, which contributes to a more rational use of the limited telecommunication resource of the meteor communication network. It is shown that to ensure a reliable exchange of information data between remote infrastructure facilities of the Northern Sea Route, a meteor trail can be used, which will provide a statistically stable connection with the fulfilment of the requirements for the probability of receiving false signs while maintaining the integrity of messages, provided that this type of communication between correspondents is discontinuous.
Computer modelling of physical processes described by parabolic type equations
Authors: Trofimets E N , Trofimets V Ya
Published: February 2021

The article considers the application of modern methods of mathematical modelling in the process of solving problems of mathematical physics in the aerospace industry. To describe the temperature distribution in a given area of space and its change in time, the heat conduction equation is used. This equation is a special case of the diffusion equation and is a second order partial differential equation. The tools of the mathematical package MathCad are considered, which can be used to study physical processes described by the heat conduction equation under various initial and boundary conditions.
Application of convolutional neural networks to rotary machines state recognition
Authors: Kornaeva E P , Kornaev A V
Published: February 2021

The paper deals with the application of convolutional neural networks to state recognition of rotary machines with fluid-friction bearings. The training and testing were based on the data from the multisensory measurement system. The influence of minor defects such as tightening of the fastening bolts as well as various cases of lubricant supply to the state of the rotor system was investigated. At the same time, the changes introduced had an insignificant effect on the measurement results, which made nontrivial the identification of states. The pre-processing of the measurement data included normalization and equality of means hypothesis testing to identify abnormal data. The developed diagnostic system testing demonstrated high accuracy compared to the accuracy of experts.
Development of a model of an agent identifying the noise signal in a ball drum mill
Authors: Kirillov I E , Morozov I N , Bogatikov V N , Murashev P M
Published: February 2021

This work is devoted to the topical issue of identifying the noise signal arising during the operation of a ball drum mill. An approach to the development of a model of an agent identifying a given noise signal is presented. Having a sufficiently large number of measurements of the parameters of the technological process, the relationship between noise and all the quantities influencing it was derived in the form of a system of linear equations. For the analysis of expert data, a model in the MatLab environment, the Simulink simulation application was developed. This model is a model of the agent for estimating the noise of the mill, which can then be used to analyze the state of the lining, regulate the operation of the mill, or make predictions with predictive control.
Effect of pipe rotation velocity on the flow rate in the automated coating system
Authors: Zaretskaya M I , Zaretskii I S
Published: February 2021

The article is devoted to the study of the viscous fluid rotation in the confined space of an inclined rotating pipe in the automated system for applying a silicate coating to the inner surface of steel pipes. The authors proposed an automated coating method when the product is installed at the sloping position and rotates around its axis while processing. The thickness of the coating depends on the rotation velocity of the material. The dependence of the flow velocity of a viscous fluid on the angle of inclination of the pipe and the rotation velocity is obtained. It ensures the coating uniformity along the entire length of the product. The study of the rotation velocity dependence of the viscous fluid along the inner surface of the rotating pipe on the velocity of its rotation is carried out.
Targeted approach to assessing the organizational effectiveness of an intelligent process control system
Authors: Smirnov V A , Milova V M , Smirnova M S , Zhilnikova N A , Kurlov V V
Published: February 2021

The article considers a target approach to assessing the organizational effectiveness of the functioning of an intelligent decision support system for controlling complex instrumental equipment at the level of a technological control system. As an indicator of organizational efficiency, it is proposed to use the degree of achievement of an organizational goal based on a comparison of the result obtained (the organizational effect of the intellectual system) and the goal (improving the quality of management decisions). To determine the organizational effect, the indicator of the level of organization of activities is used, and for the quantitative presentation of the goal - the coefficient of the quality of managerial decisions, which characterizes their accuracy and timeliness. It is proposed to supplement the quantitative assessment of effectiveness with a qualitative assessment in the form of a verbal description of the degree of achievement of the organizational goal, which is more understandable and convenient for decision-makers. To obtain a qualitative assessment, a five-level fuzzy classifier of an indicator of the organizational effectiveness of an intelligent system is used. The obtained theoretical results can be applied in the development and implementation of intelligent systems to analyze their organizational effectiveness at all stages of the product life cycle.
System of models for assessment and forecast of heat- and mass-transfer in the system “catchment-watercourse-water body”
Authors: Kondratyev S A , Golosov S D , Shmakova M V , Ershova A A , Zverev I S , Ivanova E V , Korobchenkova K D
Published: February 2021

Development of a system of models describing the processes of heat and mass transfer in the system “catchment - watercourse – reservoir” enabling the assessment of impact of economic activity and climate change on the state of water bodies. The layout of a water system model using the developed and working models of processes is performed in accordance with the determining factors: the requirements of the task; structural features of the research object; the presence and location of points of the observation network as a source of initial information for modeling. The developed system of models includes six deterministic models and one stochastic one. The deterministic models include the model of water runoff from the catchment ILHM, model of chemicals removal from the catchment ILLM, model of water flow, sediment transport and dissolved impurities in an open channel (1D, 2D, 3D), 1D model of thermal regime and mixing of reservoir FLake, 1D model of dynamics of non-conservative impurity in reservoir FLakeEco, 2D model of currents and sediment transport in shallow reservoir, 3D model of heat and mass transfer in reservoir. The stochastic component of the system is the SWM weather model, which is a stochastic generator of meteorological elements.
Two-stage rotary crushing mixer
Authors: Laponov S V , Shulaev N S , Ivanov S P , Bondar K E , Shulaeva T V
Published: February 2021

This article provides an overview of the design of a two-stage rotary crushing mixer and describes the principle of operation. It has been experimentally proven that the use of a two-stage rotary crushing mixer, in comparison with a single-stage apparatus, leads to a significant increase in the quality of the mixture and productivity. It was found that to create an emulsion with a certain size of dispersed particles, a two-stage apparatus consumes less power, this is explained by the fact that in a single-stage apparatus, to achieve the specified size of dispersed particles, the processing time of the mixture increases, and therefore energy consumption increases. In addition, the specific power consumption of the two-stage apparatus is less than the sum of the capacities of the two single-stage apparatus, which indicates a higher energy efficiency of the proposed design of RCM. Expressions(formulas) are given for determining the dissipated energy and power required for carrying out the mixing process, taking into account the design parameters of the apparatus, the properties of the media. It is shown that the power consumption for mixing is determined by the energy required for crushing emulsion droplets in a turbulent flow and energy dissipation due to viscous friction processes.
Assessment of the prospects for energy construction under conditions of increasing share of electrified transport
Authors: Voronkov I E , Bykova Z S
Published: February 2021

The electrification of personal and public transport is a worldwide trend. The indicators of some countries demonstrate a rapid rejection of fossil fuel use and conversion to electric traction, which in turn exacerbates the problem of a shortage of energy capacities. The Russian Federation is no exception. The current lag of Russia behind the world leaders in matters of electrification of transport simultaneously determines the possible prospects for a rapid increase in the number of electric vehicles in our country, which inevitably should be accompanied by the process of updating old and commissioning new energy capacities. The study aims to assess, within the framework of the Krasnodar agglomeration, the size of the prospective demand for electric energy upon reaching 100% electrification of public transport and 15% electrification of personal vehicles. Simultaneously, the issue of choosing the most priority type of generation from nuclear power plants to alternative energy sources for a given region is considered. Based on the results of assessing the need and choosing the most promising type of generating center, a conclusion is made about the relevance of construction in the city of Krasnodar by 2035 of a thermal generation facility and facilities of alternative generation of low power outside the city.
Generator photoionization gas and vapor detector
Authors: Ivanova N I , Sidorov K V
Published: February 2021

The paper describes a new type of photoionization gas and vapor detectors – a generator photoionization detector and a differential generator photoionization detector. In these detectors, the ion collection occurs under the influence of a contact potential difference between two electrodes that are made of different metals. The detector schemes and application are considered in detail. There are also the experimental values of the metrological characteristics are demonstrated. The authors illustrate graphical dependences of detector signals on volumetric concentrations of ammonia and ethyl mercaptan.
Experimental studies of laser-induced fluorescence spectra of natural objects on the ground surface
Authors: Fedotov Yu V , Belov M L , Kravtsov D A , Gorodnichev V A
Published: February 2021

The paper depicts the experimental studies of laser-induced fluorescence spectra of natural objects on the ground surface using an eye-safe fluorescence-exciting wavelength of 355 nm. Shows that a value of the laser-induced fluorescence signal from natural objects can be comparable with the laser-induced fluorescence signal value from pollution on the ground surface. A development of laser-induced fluorescence methods to detect pollution at the eye-safe fluorescence-exciting wavelength of 355 nm holds promise. These methods rely on the analysis of the fluorescence spectra shape of pollution and natural objects on the ground surface.
Urban population health risk assessment from traffic noise exposure
Authors: Klepikov O V , Kurolap S A , Mamchik N P , Kostyleva L N , Kondaurov R A
Published: February 2021

The aim of research was to identify health damage probability when traffic noise exposed. Instrumental noise measurements were carried out at 4 control points on the street highways of Voronezh city. The equivalent level of day, evening and night noise was determined. MR 2.1.10.0059-12 “Public health risk assessment from the traffic noise impact” was used as a methodological basis. It was found that the equivalent level of daytime noise varied from 45 to 65 dB, evening – from 40 to 49 dB, night – from 34 to 46 dB. According to the level of diseases reduced risk the cardiovascular system from noise load exposure for time exposure of 70-85 years the risk indicators (0.6861-1.0) refer to the level of “extreme risk”, 60-67 years (0.3551-0, 5594) – to the “high risk” level. The diseases reduced risk of the nervous system and hearing organs from traffic noise exposure is classified as “low”.
The Samara region soil contamination with industrial toxicants
Authors: Zhichkina L N , Nosov V V , Zhichkin K A , Melnikova Yu V , Shapovalov N I , Abramov Yu V
Published: February 2021

Currently, the problem of environmental pollution by toxicants of industrial origin has great ecological, social and economic importance. The research aim is to analyze the soils contamination in the Samara region with industrial toxicants. The objectives of the research included: to reveal the soil pollution dynamics with nitrates and sulfates over the years, to assess their content in the areas of soil contamination and in the background areas. The studies were carried out in 2014-2018 in the Samara city (near the territory of JSC “Arkonik SMZ”) and in the background areas (FSBI “National Park Samarskaya Luka” and Povolzhskaya AGLOS-Branch of FSC Agroecology RAS). In 2014-2018 the content of nitrate ions in the soils of the background plots and in the areas adjacent to JSC “Arkonik SMZ” varied from 7 to 66 mg/kg (1-9.4 F), sulfate ions from 13 to 303 mg/kg (0.4-8.7 F). During the studied observation period, there is a tendency to a decrease in the content of nitrates in the soils, the MPCs were not exceeded, which makes it possible to classify these soils as a pollution acceptable category. Exceeding the MPC of sulfates in research certain years (2014 in soils 5 km from JSC Arkonik SMZ and soils of FSBI National Park Samarskaya Luka, 2017 in soils 5 km from JSC Arkonik SMZ, 2018 in soils of the Volga region AGLOS-Branch of the Federal Research Center of Agroecology RAS) had a local character.
Ensuring the efficient operation of a combined-cycle gas plant in the warm season
Authors: Balzamov D S , Balzamova E Yu , Bronskaya V V , Kharitonova O S , Oykina G I
Published: February 2021

Summer technological restrictions on the electric power generation by the power stations have a significant impact on the economic indicators of generating companies. These restrictions are associated with the deterioration of performance of the generating and auxiliary equipment of stations at high air temperature and due to the following factors: the progressive decrease of electric power of gas turbines with increasing outside temperature above the calculated one (+15 °C); the rise of the water temperature in the cooling systems of main and auxiliary equipment and, as a result, the deterioration of the vacuum in the condensers of steam turbines and the operation of the cooled equipment in more intense thermal conditions.
Use of a condensate to prepare the feed water for the waste heat boilers
Authors: Balzamov D S , Balzamova E Yu , Bronskaya V V , Paluku D L , Oykina G I , Kharitonova O S
Published: February 2021

The technological process of petrochemical plants is accompanied by the output of thermal secondary energy resources, which are widely used in the technological cycle due to application of waste heat boilers to generate water vapour of different pressures. Most often, the preparation of feed water for the waste heat boilers is carried out using deeply demineralized water, the production of which is an expensive process. There is the partial replacement of deeply demineralized water by a condensate, which returns to the heat point of the plant in this article. The economic effect is presented.
Modificated small size rotor-disc mixer
Authors: Laponov S V , Bondar K E , Suleimanov D F , Ivanov S P
Published: February 2021

There is given view of construction of one-step rotor-disc mixer and described work principle in this Thesis. Also given a view of additional elements construction, arranged on working bodies (discs). It is proved experimentally, that making of slots on additional work bodies (teeth) in comparison with solid additional working elements results to significant increase quality of the mixture and performance of the device. It is determined, that to create of the emulsion with certain of dispersed particles the apparatus with modified additional working elements consumes less specific power, this is due to the fact that the working medium passes through the slots, thereby creating additional highly turbulent flows, the directions of which intersect, creating zones of sharp increase and decrease in pressure, which has a positive effect on the emulsification process. In addition specific power consumption of the device with modified additional elements is less than the specific power of the device with solid additional elements, what indicates more highly energy efficiency of supposed construction of rotor-disc mixer. Also given results of experimental research, which certifies theoretical view fully.
A two-phase-five-phase transformer calculating features
Authors: Dubovik M E , Soloviev V A , Klimash V S
Published: February 2021

The paper describes a new approach to constructing a transformer with a rotating magnetic field. Such a transformer mathematical description with a rotating magnetic field is given. A transformer calculating method for a primary and secondary windings phases different number is considered. A two-phase-five-phase transformer with a rotating magnetic field calculation is shown as an example. Based on a transformer with a rotating magnetic field calculation, its simulation model is built. The output currents oscillograms at the sinusoidal and rectangular shape input voltage were obtained.
Silicon substrate surface modification with nanodiamonds for CVD-synthesis of polycrystalline diamond
Authors: Maslov A L , Polushin N I , Laptev A I , Vysotina E A , Martynova T V
Published: February 2021

The use of polycrystalline diamond films is promising in photonics and electronics, as well as in other fields of science and technology. At present, it is limited by the complexity of obtaining high-quality films of required size, associated with the cracks formation at the film periphery caused by thermal stresses. Also, one of the key points is to increase films growth rate without sacrificing of their continuity and high quality. Substrate surface preparation makes possible to increase the initial rate of film formation and to form a continuous layer of diamond film on its surface. This work presents the results of polycrystalline films synthesis and the selection of optimal deposition regime. These results make possible to obtain high-quality polycrystalline diamond films of a larger area, which will significantly expand scope of their application.
Fourier-transform infrared spectroscopy for analysis of diamond materials of different origin
Authors: Martynova T V , Polushin N I , Laptev A I , Maslov A L , Shitareva M S , Kirichenko A N
Published: February 2021

The study of impurity composition of diamond materials is an important element of their classification for use in various fields of science and technology. Many physical (thermal and electrical conductivity, optical purity), mechanical (hardness and strength) and aesthetic (color grade and clarity) properties of diamond depend on the presence of impurities in their structure; therefore, it is important to quickly and reliably determine each impurity in diamond. In this work, the method of FTIR spectroscopy is proposed as an express method for determining the impurity composition of diamonds. We examined three types of diamond materials: single crystal natural diamonds (before and after heat treatment), single crystal synthetic HPHT-diamonds and synthetic polycrystalline diamond CVD-films. We have established that the used technique allows to determine impurities in single crystals of natural and synthetic origin reliably and effectively, while the study of polycrystalline thin films is best performed using spectrophotometry.
Numerical modeling methods for safety assessment at public facilities
Authors: Zvyagintseva A V , Sazonova S A , Kulneva V V , Asminin V F , Zyazina T V
Published: February 2021

The assessment of the protected evacuation of the population from the fire zone at social facilities in the service sector on the basis of numerical modeling methods has been carried out. The time of safe evacuation of people from the object on the basis of a basic mathematical model for monitoring fire hazards for a specific social object has been regulated. Correlations between the degree of heat and the fire duration have been recorded. Partial concentration of O2, CO2, CO, HCl, measures of smoke aerosol opacity from the fire duration using “Fogard” software package configured for simplified analytical model of human flow have been captured. On the basis of the developed mathematical model of fire development design solutions that provide a secure evacuation of the population from the object have been proposed. The calculation of the blockade duration of routes and passageways for sending people out of the fire zone was made using deterministic fire indicators has been performed.