bluuebunny/crossref_metadata_2025_split huggingface dataset:
Overview of the III International Conference on Metrological Support of Innovative Technologies – ICMSIT-III-2022
Authors: Antokhina Yu A , Ovodenko A A , Okrepilov V V , Kovalev I V , Voroshilova A A 
Published: December 2022

Abstract
The overview describes the main directions and results of the III International Conference “ICMSIT-III-2022” held in St. Petersburg on 3-5 March 2022. It gives the details about the participants and the proceedings. The anchor partner of Krasnoyarsk Science and Technology City Hall was St. Petersburg State University of Aerospace Instrumentation. A description of the main trends in modern innovative technologies, engineering and industrial physics as well as in the development of the third International Forum “Metrological Support of Innovative Technologies” by the St. Petersburg State University of Aerospace Instrumentation is given in the overview.
Features of the use of bronze alloys to produce elastic elements for various purposes
Authors: Yu Silaev M , Loparev D V , Aksenov A A , Krivonogova A S , Pushkov Yu L 
Published: December 2022

Abstract
The article presents the results of the study of indicators of the relaxation resistance of elastic elements made of bronze alloys. The issues of assessing the quality of the initial material and finished products from bronze alloys are considered. Comprehensive studies of the BrNHK bronze alloy for the manufacture of helical compression springs have been carried out. Prototypes were made, cyclic tests of helical compression springs made of BrNHK alloy were carried out. A comparative analysis of the results of an experimental study on the possibility of using the BrNHK bronze alloy as a material for the manufacture of springs is carried out. The questions of the influence of surface defects of the material on the quality of products and technological properties are considered.
Rehabilitation system of human micromotor capabilities: concept and design
Authors: Berro S M , Timofeev A N 
Published: December 2022

Abstract
Nowadays many modern prostheses hand are available on the market today, but they are still far from being able to completely replace the human hand. In addition, there are many factors that limit the ability to fully use the prostheses by individuals with hand disability caused by amputation or nerve damage. This article presents a new concept of hand disability rehabilitation means, which allows precise manipulation of the instrument and, thus, a system to facilitate the reintegration in the labour market. The operation of tool manipulation is divided into initial rough and final fine movement phases. At the initial phase, the prosthesis is freely transferred in the workspace of the user stump. the precise movement of the instrument at the final phase is performed by a micromanipulator built into the prosthesis and resting on a table or other environmental objects. An inverted system is possible, in which the manipulator is installed on the desktop, where then the prosthesis can rest or the targeted object is fixed on it, for example, assembly process. The manipulator is controlled either by the prosthesis socket or by an external device. In the latter case, the user carries out the control actions by various parts of the body or by voice. As an example of a possible implementation of this concept, the design of a prosthesis with an integrated three-degree manipulator carried on adaptive support is described. The support naturally adjusts to the comfortable height and orientation of the tool, then its braked. A computer model of speed-position control of the rehabilitation system is presented.
Behavior of dispersion-reinforced concrete under dynamic action
Authors: Nikolenko S D , Sazonova S A , Asminin V F , Mozgovoj N V , Zvyagina L N 
Published: December 2022

Abstract
The work of structures under alternating dynamic load has also been studied and modeled. Based on the results of experimental studies, a comparison was made of the work of dispersed-laminated structures under alternating dynamic action of high intensity with the work of reinforced concrete beam elements under similar influences. Dispersed concrete reinforcement changes the properties of the latter. The results of comparative experimental studies of cubes and prisms with different degrees of compression reinforcement are presented. The research results showed a significant effect of dispersed reinforcement on the operation of structures under the investigated influences and the feasibility of combined reinforcement of structures. The use of dispersed reinforcement in structures will improve their performance.
Monitoring of the kinetic regularities of wear of the inner surfaces of technological equipment made of structural steels
Authors: Gadalov V N , Vornacheva I V , Filonovich A V , Plyakin A S , Mazeev O V , Xalin A N 
Published: December 2022

Abstract
The reasons for failures of technological equipment made of structural steels of long-term operation in various environments and fields of application are considered. Investigations of the intensity of wear of equipment failures through the rate of damaging processes are presented. Modeling the processes of wear and tear of steel equipment, its failures was carried out using regression and correlation analyzes. The results of diagnostics are presented in accordance with the theoretical provisions of statistical analysis, experiment in the form of polynomial kinetic models of wear. The results of comparison of experimental and theoretical data on the wear rate for various types of equipment are also presented. The results of the normal distribution of the experimental values of the degree of wear for various types of equipment are shown, which is confirmed by the general uniformity of corrosion.
Distribution of chloride ions along the flight path of aircraft (Overview)
Authors: Laptev A B , Akhiyarov R J , Lapteva A A , Puzanov A I , Zagorskikh O A 
Published: December 2022

Abstract
Based on the analysis of the literature, the number of corrosive particles entering the aircraft engine with air has been determined. It is shown that the atmosphere of the continents has the smallest number of chlorides, their maximum content on the seashore, the troposphere above 10 km has a stable amount of aerosol particles. A method for estimating the chloride content has been developed to predict the rate of sulfide-oxide corrosion of parts of the hot TRD tract.
Investigation of the effect of ion implantation on tribotechnical characteristics of cast iron
Authors: Yu Usanova O , Ryazantseva A V , Kolishchak L M 
Published: December 2022

Abstract
The article presents studies of the tribotechnical characteristics of cast iron after various types of hardening. Samples (chemical composition of the obtained cast iron: C - 3.06%; Cu - 2.38%; Si - 2.2%; Mn - 0.75%; Cr - 0.32%; P - 0.18%; Ni - 0.1%; S - 0.05%, and Brinell hardness - 1.97-2.07 GPa) for wear tests were previously implanted with N+, B+, C+ ions, as well as TiN sputtering and carbonitration. The research was carried out on a friction machine making reciprocating motion along the counterbody. In the course of the work, the main tribotechnical characteristics of cast iron samples were analyzed in the initial state, after implantation, carbonitration and deposition of TiN. The surface morphology of cast iron samples was also studied using a scanning electron microscope in the initial state and after the above types of processing.
Assessment of the influence of moisture content in enclosing concrete structures on heat losses
Authors: Arkulis M B , Logunova O S , Savchenko Y I , Dubsky G A , Ryskuzhina I V 
Published: December 2022

Abstract
The purpose of the study is to determine the effect of wetting of internal surfaces of enclosing concrete structures on heat losses. Based on the experimental data earlier received by the authors, the increase in the value of heat losses under different conditions has been proved. The irreversible character of wetting of concrete in operating conditions at increased humidity has been experimentally proved. The multi-layer model of large-panel residential buildings and the theory of heat conduction at a constant value of the coefficient of heat conductivity inside the layer have been used in the studies. M250 concrete samples made by different manufacturers were chosen as the basic material for the research. Wetting was carried out in laboratory conditions, in a humid environment with a relative humidity of 100% with partial immersion in water at atmospheric pressure and temperature of 200C. The flux through each layer of a given thickness was estimated according to the Fourier law. According to the results of theoretical and experimental research, it was found that: the time of drying of concrete exceeds wetting time more than twice, therefore wetting process in conditions of ineffective ventilation becomes irreversible; when wetting only the internal layer of the building envelope increases heat losses by about 5%, and wetting of internal layer leads to wetting of intermediate layer of building envelope and increase heat losses by 25%.
Effect of UV irradiation on photoluminescence of Er3+ions in matrices of metal oxides and fluorides
Authors: Zharovov D A , Rudakova A V , Shurukhina A V , Kataeva G V , Ryabchuk V K 
Published: December 2022

AbstractA comprehensive study of UV-irradiation of Er-activated solid luminophores on f-f-luminescence of Er3+ions in metal oxide (ZrO2, La2O3) and fluoride (LaF3, YF3) matrices has been carried out. Both increasing (LaF3, YF3), and decreasing (ZrO2, La2O3) of luminescent emission intensity under monochromatic excitation at 377 nm caused by UV irradiation of dispersed samples have been observed. A possible mechanism of the established effect is briefly discussed
Testing of silicone and composite materials under conditions of extreme deformation
Authors: Ya Minaev A 
Published: December 2022

Abstract
Samples of silicone and composite material are studied in various compression modes up to the limiting permissible deformation levels. In the first series of tests, changes in the elastoplastic properties during deformation of a silicone sample without fillers are studied. In the second series of tests, changes in the elastic-plastic properties of a soft composite sample with special fillers are researched. Depending on the various magnitude of deformation, changes in the elastic modules of the tested materials are defined and analyzed. Based on the constructed characteristics, the ranges of the linear and non-linear regions of the compared materials are developed. Changes in the shape under various compression modes and the destruction of the silicone sample at the limiting permissible deformation level are shown. Changes in the shape of a composite sample with magnetic particles are shown under various compression modes. The unique property of the studied material to self-healing after repeat tests for maximum load limits has been established.
Real-time vertical leveling based on GIS and CAD
Authors: Djumanov Jamolzhon , Khaitov Bafo 
Published: December 2022

Abstract
A method of vertical planning based on graphic-analytical methods for determining the line of the average slope of a flat curve line is proposed. The initial data (ID) for modeling the calculated surface are determined by means of the Google Earth program. On the basis of lines of longitudinal and transverse sections of the relief, a mid-level plane, hereinafter referred to as the “plane of relief”, is determined. By varying the plane of the relief, a balance of earthworks is achieved. Design and calculation work is carried out directly in the CAD systems.
Modeling of the heat conduction process in composite media
Authors: Perevoznikov Evgeniy , Rymkevich Pavel , Stepashkina Anna 
Published: December 2022

Abstract
In this work we proposed a two-channel model of heat conduction processes in composite media on the basis of the general transfer theory. The obtained system of equations can be reduced to both the generalized Fourier equation and the system of Cattaneo equations describing fast processes. The stability of the processes is considered. A system of equations for perturbations is obtained. The calculation of the perturbations’ spectrum is given depending on the parameters of the model. From this fact it follows that in a linear system the stationary process of heat conduction is stable with respect to any small perturbations. If we take into account nonlinearity even in the simplest cases it leads to the appearance of various instabilities and the excitation of heat waves.
Structure of the most unstable modes in anisotropic turbulence
Authors: Balonishnikov Alexander , Kruchkova Julia 
Published: December 2022

Abstract
Dynamics of most unstable modes from isotropic state is the topic of this paper considered. Initial conditions for these modes are given to be agreed with the well-known energy spectra of fully developed turbulence. The simplified equation for the small-scale velocity of incompressible fluid is applied. The simple shear turbulent flow is considered. The final expressions for Reynolds stresses, dissipation transfer should be averaged over the time of the energetic eddies turnover.
Formation of a register of special technology objects based on integrating segmented images
Authors: Atlasov I V , Bozhko L M , Ja Kravets O , Mutin D I , Popov D V 
Published: December 2022

Abstract
The article considers aerospace technologies in terms of the details of the space survey of distributed objects. With discrete shooting of areas of interest, a set of images is formed, which are processed by segmentation tools. A set of overlapping or overlapping segments forms objects belonging to the register (areas of interest). The theoretical features of creating mathematical support for the process of forming areas of interest in which objects are present, based on a set of image segments obtained as a result of image processing by segmentation tools, are described. In particular, a mathematical model is presented for creating initial zones from multiple segments of sequential images. The process consists of determining the dynamic neighbourhood, determining the interaction weights and the rules for updating them, updating the spatial vectors of the segments of the processed images. The obtained results provide the creation of mathematical support for the process of forming areas of interest in which objects are present, based on a set of image segments obtained as a result of image processing by segmentation tools.
Physics of a diffraction-quality optical system, taking into account the range of received radiation
Authors: Zhukov Alexandr , Kalinin Timur , Prokhorov Mikhail , Tipaev Vladimir , Khrestinin Dmitriy , Kartsan Igor 
Published: December 2022

Abstract
The process of detecting, selecting and measuring the parameters of the movement of the observation object has a pronounced probabilistic nature. This is caused by source emission fluctuations, interference from extended and point natural sources distributed over the field of view at the input of the opto-electronic device and its own noise. As a result, the output information of the optoelectronic device, after processing by the onboard system, is output to the control and navigation system with a certain error that determines the quality of the aircraft’s control and navigation system information. The resolution is estimated depending on the equivalent weight function of the optical system and intermediate links which characterizes spatial distortions introduced into the optical image of an object taking into account the range of radiation received by the matrix photodetector. We obtained an expression that allows us to estimate the potential resolving power of the optoelectronic device taking into account the finite wavelength range of the received radiation and determine the condition under which the receiver can be considered to be spatially continuous. The present paper is devoted to estimation of the resolving power of an optoelectronic device with a matrix photodetector of radiation.
Dynamic characteristics of electric charge in HoxMn1–xS
Authors: Kharkov A M , Sitnikov M N , Nikitinskiy O S , Gelgorn A V , Runov R V 
Published: December 2022

Abstract
In a solid solution of HoxMn1-xS, the magnitude of the electric charge versus the voltage is investigated in a quasi-stationary electric field at frequencies of 0.003 Hz, 0.01 Hz and 0.1 Hz in the temperature range of 80-500 K. The temperature intervals phase synchronism of current and voltage are established. The temperatures of extremes with the maximum electric charge in the sample HoxMn1-xS are found.
A shape mapping for generalized beta exponential distribution of the first kind in the entropy-parametric space
Authors: Polosin V G 
Published: December 2022

Abstract
Modern methods of tracking and controlling complex systems are associated with the analysis of the shape of statistical models of sample arrays. Often the values of the monitored parameters are maintained only on a semi-infinite range of values. In these cases, it is possible to use generalized beta exponential distribution models of the first kind to smooth the statistics, that it is including such models as exponential and generalized Gompertz-Verhulst distributions as special cases. The distributions with a large set of subfamilies rarely are use due to lack of methods of preliminary estimation of the distribution shape parameters. The paper illustrates that the displayed of distributions in the parametric space of skewness and kurtosis does not allow distinguishing the features of the position of the main subfamilies of distributions. Mapping the subfamilies of the Generalized Beta Exponential Distribution of the first kind in the Entropy-Parametric space makes it possible to distinguish between subfamilies and to comparative analysis of many their properties. It is convenient to use the space of the entropy coefficient and skewness when you are comparing the skew properties of distributions. The space of the entropy coefficient and antikurtosis is more suitable for comparing the weights of distribution tails and for analysing monotonicity. In particular, it is shown that the Generalized Beta Exponential Distribution of the first kind contains as monotonic and as non-monotonic leptokurtic distributions. The property of monotonicity is well discernible when compared with the antikurtosis of the exponential distribution.
System for automated selection of equipment of installation of submersible electric centrifugal pumps to the well based on machine learning
Authors: Muravyova E A , Konnov V A , Sharipov M I 
Published: December 2022

Abstract
Currently, the largest oil companies in Russia are facing the problem of depletion of operated oil wells, which leads to an increase in the cost of produced raw materials. This stimulates the need to introduce better tools to increase the efficiency of downhole equipment of electric centrifugal pumps. This paper considers the construction of an automated software complex for selecting the characteristics of an electric centrifugal pump to a well based on artificial neural networks in the Python programming language using Tensorflow machine learning technologies. For analysis and formation of training samples data of production wells of Vankorskoye field are taken. The formed sample includes such variables as: production well flow rate, pump supply, watering, oil density, water density, depth of upper perforation holes, bottom hole depth, tubing lowering depth, dynamic level, formation pressure, wellhead pressure, fluid viscosity, feed coefficient, tubing outer diameter, tubing roughness, pipe wall thickness. These data directly affect the selection of the type and characteristics of electric centrifugal pumps, and have a mutual influence on each other. A calculation algorithm has been created. Data described, processed and prepared. The influence of optimization by selection of optimal characteristics of pump on power saving is considered. With the help of Tensorflow machine learning libraries, a model of the neural network has been created in the software PyCharm, predicting the optimal characteristics of a suitable electric centrifugal pump taking into account the influencing parameters.
Development of neural network controller for control of debutanization process in rectification column of gas-fractionating plant
Authors: Muravyova E A , Sharipov M I , Zubaydullina K R 
Published: December 2022

Abstract
In process systems, stabilizing parameters and bringing the process to technological mode is a rather difficult task. Control and control of parameters in manual mode does not produce effective results, and for this reason the introduction of an improved control system is required to eliminate human factor errors. Currently, the best efficiency is shown by neural networks, which are used for an advanced control and prediction system. The purpose of the study: in this project, a neural network controller is being developed to control the debutanization process of the gas fractionation plant in the Matlab Simulink environment. Cascade neural networks consisting of a certain number of layers and neurons are used to develop the project. During the work, a cascade neural network was selected, in which the parameters of the technological system were trained.
A shape space for generalized beta exponential distributions of the second type
Authors: Polosin V G 
Published: December 2022

Abstract
The generalized beta exponential distribution of the second type contains subfamilies of logistic distributions, that are often used to control time arrays in complex systems. Currently, the choice of a model from possible implementations of a generalized family remains a rather time-consuming task. For this reason, it is often necessary to use complex mixtures of models. Displaying subfamilies of a generalized exponential distribution of the second type in the space of parametric and information features to choose the simplest form of the model from subfamilies and to evaluate the shape parameters is enabled. In the space of standardized moments of the third and fourth order the trajectories position of possible realizations limits the upper limit of distinguish-ability of the shape parameters of distribution models. A significant expansion of the distinguish-ability of trajectories it is possible to achieved by using the entropy coefficient of non-shifted distributions as an additional independent feature of the distribution shape. Mapping subfamilies of distributions in the space of entropy coefficient, antikurtosis and skewness one also to analyse the most important properties of distributions as well is allows. In article it is shows that for all models of the generalized distribution of the second type, the antikurtosis is in the range between the exponential and normal distributions.
Sequential methods and algorithms
Authors: Deshko Igor , Tsvetkov Victor 
Published: December 2022

Abstract
The research aims to investigate the application and applicability of sequential methods and algorithms. The content of the concept of sequentiality is disclosed. Its polysemy and application in programming are shown. The notions of logical algorithm and sequential algorithm are introduced. The difference between sequential and logical algorithms is shown. A comparison with deterministic algorithms is given. The principles of logical algorithms and sequential algorithms are described. Common is a step-by-step calculation. However, the link of sequential algorithms is more complex and represents a multigraph. Similarities and differences between sequential algorithms and computational networks are shown. Sequential algorithms can be considered as integrated technological systems. The research shows that the application of sequential algorithms allows solving a larger number of problems that logical program algorithms do not solve. The research gives criteria for the applicability of logical and sequential algorithms