bluuebunny/crossref_metadata_2025_split huggingface dataset:
A novel approach for Hyper Spectral Images using Transfer Learning
Authors: Bharti Rohit , Saini Dipen , Malik Rahul 
Published: January 2021

Abstract
The spectral analysis and spatial analysis of high dimensional images are very important and in this paper we tried to cover some aspects that how this problem can be handled and proposed a way through which we can overcome the problem of the time constraint and using some deep learning novel approach like transfer learning for getting the best results while performing the actual computations and the results which we obtained. The dataset used is EuroSAT in which by using a VGG network, the accuracy is achieved 95 per cent and the validation accuracy achieved is 92 per cent. Also, the Kappa score which we got for this observation is 0.95. The tool used for the implementation purpose is TensorFlow with GPU which is also discussed in the paper.
Dynamic Combined Treatment of Curved Surfaces by Two-Component Processing Media
Authors: Kuzovkin A V , Boldyrev A I , Boldyrev A A , Padurets A A 
Published: January 2021

Abstract
This article is devoted to the tool usage as conductive filler with application of electric field for dynamic dimensional finishing combined treatment of hard-to-reach surfaces with high degree of curvature. The area of its technological use is shown in relation to aircraft engineering, rocket and space technology component parts and oil and gas industry. The common criterion for method applicability is that such parts have sections with variable curvature and limited tool access to the treatment area. The authors show that in dynamic combined process control of the required technological and operational indicators is possible due to the combination of current-carrying granules kinetic energy and surface anodic dissolution in treatment area. Methods for remote control of dimensional processing with the creation of required reinforced surface layer due to the dynamic mechanical action of solid granules and surface roughness due to anodic dissolution of work surface are presented. The resulting effect is increase in service life and durability in critical assemblies of aerospace equipment and oil and gas apparatus.
Influence of the structure of coolant flows on the temperature profile by phases in a water heating dryer
Authors: Safarov J E , Sultanova Sh A , Dadayev G T , Zulpanov Sh U 
Published: January 2021

Abstract
This research of the profiles of the temperature field of the process of convective drying of plant raw materials. Mathematical modeling of the temperature field on the basis of the three-phase flow structure was carried out. In a wide range of variation of design and operating parameters (from 50 to 150%) their nominal values are identified. A qualitatively new picture of the temperature field was found, which is expressed in the fact that, depending on the contact conditions of the gas and solid phases and the relative air flow, the temperature profile on the pallets can have both positive and negative slopes. The sensitivity of this relationship, formalized in the form of axonometric graphs and the corresponding families of isolines on the plane of variable factors, is shown. Criteria for non-uniformity of temperature profiles across pallets (dispersion of material temperature and angle of inclination of the approximating straight line with fixed values of the average temperature of the substance) are proposed. The procedure for solving the optimization problem on the conditions of the minimum criterion for the unevenness of the material profile is justified when the average temperature of the material specified in accordance with the conditions of the process schedule is restricted as equality. For the conditions of solving an optimization problem by the criterion of minimizing the square of the slope, minimization of the material temperature by the dispersion gives minor deviations:gotimal=0.3833, kmgoptimal=0.0124. For r=0 gives optimal, gotimal=1.2857, kmgoptimal=0.032, and for r=0.725, we get gotimal=0.3832, kmg=0.0126, which is in good agreement with the nomogram.
Synergetic synthesis of aggregated discrete regulators for induction motors
Authors: Veselov G , Kondratiev I , Semenov V 
Published: January 2021

Abstract
The paper presents the method of synergetic synthesis of a nonlinear discrete control system for induction motors. The proposed approach is based on using the methods of the synergetic control theory and nonlinear mathematical models of induction motors. This approach allows to create nonlinear closed-loop piecewise-continuous control systems which guarantee the asymptotic stability of the controlled induction motors, accomplishment of the determined technological and electromagnetic invariants and selective invariance to the unknown external disturbances acting on the system. The invariance of the designed systems is ensured due to the usage of a dynamic discrete regulator which increases the astatism of the synthesized system.
Vibration dynamics and cutting process temperature at various stages of forming the wear of the cutting wedge
Authors: Lapshin V P , Turkin I A 
Published: January 2021

Abstract
On today, there is no single and consistent mathematical model describing the complex connectivity of the metal cutting process. Therefore, the article proposes new approach based on the formation of feedback connecting subsystems describing the power, thermal and vibration reactions from the cutting process. The purpose of the work: By forming a consistent model of connections between subsystems describing the power, thermal and vibration reactions from the cutting process to the shaping movements of the tool, you can obtain a description of the mechanism of self-organization of the cutting process in the process of evolutionary changes of the tool. The resulting mechanism is needed to search for some mode of operation of the cutting system, in which further wear of the cutting wedge, cutting force, temperature in the cutting zone and vibration of the tool can be stabilized. Research methods: For processing and analysis of the obtained data, a Matlab package of mathematical programs was used, in which a subprogram was developed that allows a series of numerical experiments. The main conclusion on the work is the provision put forward by us on the self-organization of the cutting system, through the process of evolution of the instrument.
Verification of thermal models in the design of personal protective equipment against cold
Authors: Cherunova I V , Stenkina M P , Kornev N V 
Published: January 2021

Abstract
In the article research results are presented, which aim to verification of thermal models in the design of personal protective equipment against cold. Under the effect of wind, movement, and pressure of the human being himself on the clothing, the design thermal resistance of the clothing decreases and does not provide the stable human comfort. To eliminate such risks, special heated garments are being developed, which are fitted with electric batteries. The basis for such a development is the mathematical model of the system “Human-Clothes-Environment”, which allows to establish the main parameters of the heating intensity of each individual section of the clothing, taking into account the overall functioning of the system. Such a model has been developed. The problems of verification of thermal models for designing if the clothing are associated with the assessment of experimental data on the parameters of the system under study. A structure for the formation of a method for experimental verification of the models of thermal protective clothing has been developed. Design of experimental protective clothing against cold with heating based on a mathematical model has been developed. The ratio of feelings of thermal comfort and temperature under heated clothing of small thickness under wind load, cold and lack of physical activity has been installed.
Kids security on social networks by face blur technique
Authors: Mladenovic V , Djukanovic S , Stefanovic N , Kar A , Jovanovic M , Makov S 
Published: January 2021

Abstract
This article deals with increasing security and children protection under the age of 16 (underage) on social networks with photo content such as Facebook, Instagram, Twitter, and similar. Particularly, the emphasis is placed on the official sites of public institutions on Facebook, such as kindergartens, primary and secondary schools, and all institutions dealing with children. One of the source key issues is the ability to track these public pages by malicious visitors. The main point is the developed algorithm that analyzes any photo, recognizes kid(s), and blurs it during the upload photo onto the page of the social network. The complete procedure for processing is shown and performed testing, verification, and validation.
Modeling of carrot thin layer convective drying process
Authors: Petković M , Filipović V , Filipović I , Lukyanov A , Studennikova S , Mardasova E A 
Published: January 2021

AbstractThe effects of different dehydration temperature (35, 50 and 70 °C) and carrot slice thickness (3, 6, and 9 mm), at the constant (hot) air speed and mass load, on moisture ratio (MR) and drying ratio (DR) in thin layer convective drying process were investigated. The mathematical models Modified Page, Logarithmic, and Two-term models (forMR), and Gauss Modified model (forDR) were the most appropriate. Based on the obtained results for theR2andRSME, the optimal parameters for thin layer drying carrot slices in laboratory dehydrator are dehydration temperature 70 °C, and carrot slice thickness of 3 mm, with the shortest dehydration time of 4.5 hours and the maximum DR of 106.7 g/h.
Compositions Based on Expansion Additive for the Repair of Reinforced Concrete Structures
Authors: Shlyakhova E A , Serebryanaya I A , Egorochkina I O , Matrosov A A , Soloviev A N 
Published: January 2021

Abstract
In this paper the issues of creation of effective composite materials for performance of repair and restoration works of operated reinforced concrete structures are considered. The necessity of introducing repair compositions is justified. Theoretical foundations of concrete mixtures preparation process are given. Original repair compositions developed by the authors with an expansion additive based on Portland cement, as well as substandard fine aggregates with increased physical and mechanical properties of concrete are proposed
The design parameters optimization of the oscillating ploughshare mechanism of the root harvester
Authors: Vislousova I N , Matrosov A A , Kotov V V , Lesnyak O N , Soloviev A N 
Published: January 2021

Abstract
The problem of optimizing the design parameters of the oscillating ploughshare drive is solved. The purpose of optimization is to ensure the technological process of digging up the soil and harvesting root crops while expanding the speed range of the harvesting machine. The optimization criterion is the torque amplitude on the drive shaft determined from the dynamic drive model. The value of the optimization criterion depends on the parameters of agricultural background and kinematics of the drive mechanism. The load levels and reliability indicators of the optimized and original design of the digging mechanism are investigated.
Multifractal parameterization of metal structure dynamic evolution under high-speed surface heat treatment
Authors: Brover A V , Brover G I , Topolskaya I A 
Published: January 2021

Abstract
The paper presents the results of experimental studies of the structural state peculiarities and the properties of steel surface layers after laser treatment. The study is devoted to the examination of relationship between the processes of self-organization and adaptability of structures emerging from laser radiation, and material properties using key synergistic basics and fractal theory.
Mechanical properties and failure mechanisms of 3D-printed PLA scaffolds: A preliminary study
Authors: Mitrin B I , Chapek S V , Sadyrin E V , Swain M V 
Published: January 2021

Abstract
Polylactic acid (PLA) porous composite scaffolds with three different infill patterns were subjected to compression testing. The composites were fabricated by 3D printing based on Fused Filament Fabrication (FFF) technology. Stress-strain curves were obtained which allowed to identify Young’s modulus, yield point and residual strain of samples. 3D tomography images were taken before and after deformation. Comparison between images corresponding to a particular sample were used to identify deformation and failure mechanisms.
Organization of unmanned aerial vehicles movement as a group
Authors: Heiss E A 
Published: January 2021

Abstract
This paper describes the organization of movement of unmanned aerial vehicles in a swarm based on modification of the potential field method. Collision prevention is carried out by the potential field method, and relatively uniform distribution of agents in the free space is provided by the control system component, which uses the change of the repulsion field radius depending on the number of neighbors and the distance to them. Averaging the value with neighbors is used to reach consensus on the value of the repulsion field radius. In addition, the results of modeling an algorithm demonstrating satisfactory work and low requirements to the speed of information exchange network are given.
The formalization of the characteristics of automatic workplace (AWP) with the use of linguistic variables (LV)
Authors: Kramarov S O , Khramov V V , Belyaev A V , Grebenyuk E V 
Published: January 2021

Abstract
The article suggests using a new approach to formalize requirements and describe them in the form of a fuzzy area in the settings space. To do this, an alphabet is made that contains the values of linguistic variables. Using this method, it is possible to quantify the extent to which the proposed system is part of a variety of effective ARM’s. In this article, the authors used a new solution to apply elements of artificial intelligence and elements of fuzzy logic in the creation of ARM. Using linguistic variables in the article it is possible to determine the degree of belonging of the research system to the effectiveness of this ARM. The method of fuzzy aggregation using linguistic variables (LV) is used in this paper when forming a vector of requirements for an automatic workplace (AWP), as well as its elements, including cognitive analysis methods, a technical description of existing AWPs, their algorithmic and software tools, as well as to determine the degree of compliance of AWP variants with the necessary technical requirements. In this article, we have applied a new approach to formalizing the requirements for determining the effectiveness of ARM use using artificial intelligence and fuzzy logic elements. To do this, we propose to make a special alphabet that contains the values of linguistic variables. Using this method, it is possible to quantify the extent of belonging to many effective ARM’s.
Wave hydrodynamics discrete models construction and research
Authors: Sukhinov A I , Chistyakov A E , Protsenko E A , Sidoryakina V V , Protsenko S V 
Published: January 2021

Abstract
Analysis of the existing methods and tools for predictive modeling of hydrodynamics suggests the need to develop discrete analogs of the constructed models that have the properties of conservatism, stability and convergence, as well as algorithms for their solution, providing an increase in the accuracy of predictive modeling. In this work, a continuous three-dimensional mathematical model of the hydrodynamics of shallow water bodies is considered, and its discretization is carried out. To solve the problem of hydrodynamics, the method of correction to pressure in the case of variable density was used. When constructing discrete mathematical models of hydrodynamics, the filling of the control cells was taken into account, which made it possible to increase the real accuracy of the solution in the case of a complex geometry of the investigated area by improving the approximation of the boundary. The preservation of the flow at the discrete level of the developed hydrodynamic model, as well as the absence of non-conservative dissipative terms obtained as a result of the discretization of the system of equations, is proved.
Dependent twin-engine hydraulic drive of the drilling rig with a mechano-hydraulic variable pump control circuit
Authors: Rakulenko S V , Grishchenko V I , Poleshkin M S , Sirotenko A N 
Published: January 2021

Abstract
The work is devoted to the study of an adaptive hydraulic drive for tool feed of a mobile drilling rig. The analysis of the ways of regulation of the considered hydraulic systems is carried out, the criteria and parameters of their functioning are determined. As a result of the analysis, an original circuit design of an adaptive hydraulic drive was applied, where the tool is fed using an adjustable volumetric hydraulic motor with a hydraulic control loop, taking into account the changing load on the tool during drilling. By a computational experiment in the Matlab Simulink program, the parameters of the control loop devices are determined: a hydromechanical sensor and a hydraulic valve, on the basis of which the experimental setup is implemented. The performed multifactorial experiment made it possible to identify the processes in the original hydraulic circuit for controlling the hydraulic motor under various modes of tool loading. The results made it possible to determine the rational ranges of functioning of the hydromechanical system for a typical working cycle. The use of the developed research methods and their results makes it possible to reduce the time and money spent in the design of adaptive hydraulic systems of mobile technological machines, in the creation of prototypes and in the commissioning.
Probability of thermal runaway in high-capacity nickel-cadmium batteries with pocket electrodes
Authors: Yazvinskaya N N , Galushkin D N , Isaev I R 
Published: January 2021

AbstractAn experimental investigation was given to the occurrence probability of the thermal runaway in the high-capacity nickel-cadmium batteries with the pocket electrodes. 800 charge-discharge cycles were performed using a hard charge mode at a voltage of 2.2 V and a temperature of 40 ° C. It was shown that in the batteries of this kind, the thermal runaway is either impossible or its probability is much lower than that in the batteries with the sintered electrodes. The explanation was given to this phenomenon based on the previously proposed thermal runaway mechanism based on the exothermic reaction of the thermal runaway.
Energy saving based on minimization of water consumption in housing and communal services machines
Authors: Larina L V , Ruslyakov D V , Tikhonova O B 
Published: January 2021

Abstract
The paper considers the feasibility of using a jet aeration system for water and energy saving in the operation of sweepers, irrigation and washing machines, channel washing machines. On the basis of physical models of air-water jets are made to the calculation of process parameters of aeration of the working fluid, to establish the possibility of reducing the consumption of water supplied to the washing chamber sewer machine 15%, when the pressure of the water inlet to the water system is 0.17 ATM. To establish the limits for regulating the parameters of the aeration process of liquid jets, a complete factor experiment was conducted for 6 significant factors. The resulting mathematical model of the water jet aeration process is adequate to the process under study. The limits of regulation of the process in question are determined: compressed air pressure, Q=0.3 - 0.35 MPa; nozzle size z=5-8 mm; angle of attack of the abrasive jet α=55-60°; distance to the treated surface L=120-180 mm; appropriate reduction of the diameter of the water jet during aeration -15÷ 50%. It is shown that the water saving in the washing chamber on the example of the KO-502B2 channel washing machine based on the ZIL-433362 chassis when using the aeration system will be, and the pump power will decrease by 1709 watts.
Analysis of the main trends in the development of municipal equipment has shown that the provision of resource-saving technologies for cleaning, maintenance of urban areas and pipelines is one of the priorities in the development of housing and utilities.
RETRACTED: The composition of the hydraulic drive on the example of the power head of high-speed equipment
Authors: Kobzev K , Rybak A , Zolotuhina I , Zanina I , Il’ev A , Kobzeva N 
Published: January 2021

Abstract
The article discusses the control system of a hydraulic power source of constant pressure, which is a pump-storage power source, equipped with the original design of the automatic unloading of the hydraulic pump, which provides relay switching of its operation mode. A mathematical model is proposed, obtained using a modeling technique based on the application of the theory of volumetric rigidity of hydraulic systems and their elements.
The main property of a power source with an automatic unloading device of the proposed design, confirmed as a result of a numerical experiment, is that the automatic unloading device provides a clear relay switching of the pump operation mode from unloading to operating mode and vice versa. The revealed properties make it very promising to use a pump-accumulator power source in the hydraulic systems of mobile machines and technological equipment.
RETRACTED: Dynamic change in the assessment of labor protection conditions at technological enterprises
Authors: Zolotuhina I , Kokun’ko I , Pashkova O , Kobzeva N , Kobzev K 
Published: January 2021

Abstract
Labor protection is a system of ensuring the safety of life and health of workers in the process of work, including legal, socio-economic, sanitary and hygienic, psychophysical, treatment and prophylactic, rehabilitation and other measures. The functions of labor protection are the study of sanitation and occupational hygiene, the implementation of measures to reduce the influence of harmful factors on the body of workers in the process of work. The main method of labor protection is the use of safety measures. At the same time, two main tasks are solved: the creation of machines and tools, when working with which the danger to humans is excluded, and the development of special protective equipment that ensures human safety in the labor process, as well as training workers in safe working practices and the use of protective equipment, conditions are created for safe work.
The main goal of improving working conditions is to achieve a social effect, i.e. ensuring labor safety, preserving the life and health of workers, reducing the number of accidents and diseases at work.
Improving working conditions also yields economic results: an increase in profits (due to an increase in labor productivity); reduction of costs associated with compensation for work with harmful and difficult working conditions; reduction of losses associated with injuries, occupational morbidity; decrease in staff turnover, etc. The main document in the normative and technical documentation is the normative act “Occupational safety standards system”.