bluuebunny/crossref_metadata_2025_split huggingface dataset:
Electronic digital signature
Authors: Dzhangarov A I , Suleymanova M A 
Published: May 2020

Abstract
The object of this article is an electronic digital signature that allows to identify the author of the document. An electronic digital signature is some details of the source document obtained by converting information using special cryptographic algorithms. In addition to determining the author, it also allows to check the accuracy of the information and evaluate its distortion from the moment of the formation of the signature itself. As part of the scientific work, a software product was created that was able to sign electronic documents using one of the well-known cryptographic algorithms, and the prospects for the development of this direction were also analyzed. Despite the fact that the electronic signature has not yet become widespread, there is a high probability that its widespread adoption in public and private institutions is expected in the very near future.
An approach to algorithmizing the problem of vertex minimization of nondeterministic automata. Part I. Problem statement and the brief description of the basis methods
Authors: Abramyan M E , Melnikov B F 
Published: May 2020

Abstract
We consider our approach to the problem of vertex minimization of nondeterministic finite automata. It comes down to constructing a lot of grids and knocking out on its basis an optimal (or pseudo-optimal) subset. However, our problem is much more complicated than the classical problem of optimal coverage of a set, since we need to succeed (to build pseudo-optimal solutions in an acceptable time) in its particular case; in this particular case, we are considering has many specific features, which are not characteristic of most other variants of the problem of optimal coverage of a set. In the first part of the paper, we consider issues related to the brief description of the basic branch-and-bound method, testing approach to the basic method, and some modifications the basic algorithm.
Multi-chip assemblies combining wire bond and flip-chip package technologies
Authors: Ershova N Yu , Reginya S A , Lunkov P V , Kirienko D A 
Published: May 2020

Abstract
The paper considers technological solutions for the production of multi-chip package-on-package assemblies. To evaluate the capabilities of the manufacturer product line the PoP prototype samples were produced. The results of qualification tests of PoP prototype samples are presented. Conclusions have been drawn on the applicability of systems in package, combining the installation technologies of Wire Bond and Flip-Chip crystals.
Technology for reducing urease activity in soybeans
Authors: Morgunova N L , Rudik F Y , Semilet N A , Lovtsova L G , Ivanova Z I , Pfeifer Sh A 
Published: May 2020

Abstract
The main biochemical component of soy is protein, but it contains quite active anti-nutritional substances, such as proteolytic enzyme inhibitors, urease, lectins and others that reduce its nutritional value. This is the main deterrent to the use of soy in raw form for feeding farm animals and widespread use in the food industry. The article deals with the issues of inactivation of anti-nutrient substances using low-frequency ultrasound in water with hydrogen peroxide.
Bioindication methods in environmental engineering
Authors: Esyakova O A , Voronin V M 
Published: May 2020

Abstract
One of the activities in the field of environmental engineering is the monitoring of environmental pollution, in which a preliminary stage is carried out – bioindication studies. The Siberian spruce assimilation apparatus is a very reliable tool for the air environment estimation because of high sensitivity to pollutants and the possibility to perform an annual observation. The system of aerogenic pollution estimation in terms of biochemical parameters deviations is considered to be rather reliable. The anthropogenic air pollution leads to the change of the plant metabolism. The increase of the terpenoid compounds content in the needles is due to their biosynthesis intensification as the response of the plant to an unfavorable environment. Under similar conditions other secondary metabolites – phenol substances – are accumulated in tissues. The phenol compounds content in the Siberian spruce assimilation apparatus is increased by more than 60% in the polluted areas compared with the background one. The pigment system of the assimilation apparatus is influenced by the air pollution as well. This study suggests the Siberian spruce assimilation apparatus to be an indicator of air pollution. Results of its composition research and morphometric parameters give a full picture about environment condition.
Numerical-analytical method for determining the barodiffusion coefficient of technological process of ion-exchange suspension filtration
Authors: Palvanov B , Saidov U , Yusupova J , Kravets O Ja 
Published: May 2020

Abstract
A method for determining an experimental parameter of the barodiffusion coefficient for conducting computational experiments in technological process of filtering liquid ionized solutions is given in the paper. The developed mathematical model allows obtaining calculated data for the study of other parameters of the unit, taking into account the physicomechanical properties of fluid when cleaning solutions in an ion-exchange column. An analytical solution to the systems of linear equations of diffusion and mass transfer with a constant flow velocity and a variable pressure gradient is obtained. Using these data we can verify the adequacy of the developed mathematical models of the mass transfer process in porous media.
Analysis of some chemical indicators of soils of industrial-oil-polluted territories
Authors: Gerasimova L A , Eremina I Yu , Makarskaya G V , Kuklina A I 
Published: May 2020

Abstract
The object of the research is the territory of the military unit (Technical missile base). The subject of the research is chemical pollution of soil and structures on the territory of the former military unit. There remained destroyed structures for various purposes on the territory and there is visible soil pollution with various chemicals, presumably oil products and rocket fuel components. Methods of instrumental and titrimetric analysis of water extraction of soil samples were used to assess the pollution. A total of 13 soil samples and a control sample were analyzed. All samples were subjected to multicomponent complex analysis, during which acidity - Ph, salinity, electrical conductivity, alkalinity, Ca, Mg, Cl ion content were determined in each sample. An attempt is made to answer the question about the composition and danger of such anthropogenic pollution, as well as about the possibility of further use of these lands.
Synthesis of sulfated starch-casein complex
Authors: Kazachenko A S , Vasilyeva N Yu , Malyar Y N , Kazachenko A S , Slyusareva E A 
Published: May 2020

Abstract
In this paper, a new method for the synthesis of the sulfated starch-casein complex is proposed. The resulting new complex was characterized by FTIR and UV-spectroscopy. It has been shown by FTIR spectroscopy that both nitrogen atoms and the carboxyl group of amino acid residues are protonated in casein. The sulfated starch-casein complex obtained in this work may have biological activity, as well as its analogues isolated from plants, fungi, and microorganisms, as well as synthesized in laboratory conditions.
A dynamic model of the impact of engineering services on the parameters of the economic system
Authors: Shinkevich M V , Klimenko T I , Ostanina S Sh , Garipova G R 
Published: May 2020

Abstract
The article presents the author’s approach to the concept of engineering as a service sector of innovative infrastructure. The key components of engineering as a service are identified. A factor analysis of the impact of the engineering services sector on the development parameters of an innovative economy has been carried out. Based on it, a prognostic dynamic model of the contribution of the engineering services sector to the development of an innovative economy is proposed.
Calculation of the optimal number of redundant elements of power systems using the Lagrange multipliers method and information theory
Authors: Karandeev D J , Dulesov A S , Bazhenov R I , Karandeeva I J 
Published: May 2020

Abstract
The article analyzes the applicability of information theory tools in solving problems of analysis of functioning engineering networks. This applicability is justified by the laws of distribution of random variables. There is a need to develop methods for determining the number of redundant elements. A method for calculating the optimal number of redundant elements of an engineering network based on the method of Lagrange multipliers taking into account the measure of information uncertainty is proposed. At the end of the article, an example of calculating the number of redundant elements that should be added to the system to increase the system reliability level to the required value is shown.
Assessment of factors ensuring industrial safety of enterprises of the electric power complex
Authors: Gibadullin A A , Sorokina V V , Sadriddinov M I , Petrusevich T V , Izzuka T B , Kokurina A D 
Published: May 2020

Abstract
The presented study is devoted to the issues of industrial safety of workers employed in harmful and hazardous working conditions in the Russian electric power complex. Because of the analysis, it was revealed that about a third of the employees of the electric power complex are employed in harmful and dangerous working conditions, and the number of workers receiving compensation for harmful working conditions is reduced annually and in 2018 reached a minimum. At the end of the study, a model for ensuring industrial safety for working in harmful and hazardous working conditions was proposed, including material incentives, the issuance of special products, social assistance and medical and preventive measures. The implementation of the model will increase industrial safety for employees working in harmful and hazardous working conditions.
Research of an electromagnetic vibrator with a non-linear power supply
Authors: Ibadullaev M , Nuraliev A , Esenbekov A 
Published: May 2020

Abstract
Electromagnetic vibration exciters (EMW) are widely used in various sectors of the national economy (chemical, mining, engineering, oil and gas) for transportation and simultaneous processing of bulk cargo, mixing and batching, grinding, separation, etc. Recently, more and more attention has been paid to the problems of their automation. This is caused by the fact that controlled vibration machines can significantly increase and stabilize at a given level of technological processes. Automation of EMVV can be solved only by developing automatic stabilization of performance with closed feedback. Rational design of this kind of sustainability needs theoretical justification. This article discusses the analysis of self-oscillations in electromagnetic exciters with a nonlinear power source used in vibration technology. To analyze the equations, the averaging method was used. Using this method allows obtaining periodic solutions for current and mechanical vibrations. The results of the analysis can be used in the development of self-oscillating electromagnetic exciters.
On the issue of using a robotic manipulator to perform operational switching in electrical distribution devices and substations
Authors: Dmitriev A A , Martyanov A S , Yurkin V V 
Published: May 2020

Abstract
During the operation of power supply systems, a sufficiently large number of labor cost of operational personnel is required to perform operational switching. The classification of operational switching has been considered in the article; conclusions have been made about the possibility of using robotic manipulators for some of them. A description of the design of this device and the functions that it should have has been given. A block diagram of the collection and exchange of information and control signals for the power supply system is presented, in which the robot manipulator automatically performs a certain set of manipulations according to a predetermined algorithm or at the command of an operator. Conclusions are drawn on the appropriateness of using these devices in substations with large room for installing switchboards.
Assessment of the influence of weather conditions on the concentration of PM2.5 in the atmosphere of Krasnoyarsk
Authors: Tokarev A V , Shaparev N Ya 
Published: May 2020

Abstract
The influence of weather and terrain on the seasonal distribution of surface concentration PM2.5 in the atmosphere of the city of Krasnoyarsk (Russia) in 2018-2019 is analyzed. We use data from the Geoportal developed by the authors, which has a data connection with the regional monitoring system of weather conditions (wind direction and speed, relative humidity and air temperature, atmospheric pressure) and particle concentration PM2.5.
The beneficial using the heat of the exhaust gases of the furnaces of the technological unit for the ethylene oxide production
Authors: Balzamov D S , Balzamova E Yu , Bronskaya V V , Oykina G I , Rybkina E A , Shaikhetdinova R S , Kharitonova O S 
Published: May 2020

Abstract
The solution to the issues of increasing energy efficiency and optimizing the work of enterprises in the petrochemical industry is due to the constant increase in prices for primary energy resources. In this article, the technological site for the production of ethylene oxide, which is characterized by high energy intensity, is considered as an object of study. The largest consumer of energy in this area are technologically furnaces. In the framework of the study, an analysis of the operation of the furnaces was carried out, a balance of the heat-technological flows of the site was compiled, the potential for energy conservation in the utilization of the exhaust gases of the process furnaces was calculated, and the possibility of the beneficial use of the obtained heat was calculated. The economic efficiency and payback period of the proposed method of utilization of flue gases is determined.
Optimization of environmental performance of a car diesel engine running on natural gas by reducing carbon black in the exhaust gas
Authors: Likhanov V A , Rossokhin A V 
Published: May 2020

Abstract
The article considers ways to reduce the soot content in the exhaust gases of motor-tractor diesels (smoke) by using an alternative fuel-compressed natural gas. The influence of gas engine fuel on the parameters of the combustion process and soot content in the cylinder and in the exhaust gases of a high-speed diesel D-245.12C with a dimension of 4CHN 11,0/12,5 (turbocharged, liquid-cooled) is considered. The results of experimental and theoretical studies are presented, which allow us to draw a conclusion about the efficiency and feasibility of using this fuel to reduce the smoke content of exhaust gases.
Situational model of decision-making system based on environmental monitoring data in the conditions of urban development
Authors: Ivanova I G , Danilov A D , Burkovskii V L , Gusev K Yu , Gusev P Yu 
Published: May 2020

Abstract
Urban population growth is a trend of industrial society. According to the annual UN reports on the rate of urbanization of countries in 2007, the urban population became equal to the rural population in the world and continues to increase. As a result, following the population growth and the growth of cities. Development planning of urban areas is a complicated and important task, requiring the solution of a number of social issues: the optimization of the location of municipal facilities, improve the quality of life of citizens, the formation of leisure and recreational areas, the formation of the urban landscape and design, the formation of zones of residential development, the transport infrastructure, street and road network with minimal impact on the environment, placement of objects of social sphere, development of suburban areas. Compaction of the development of modern Russian cities, with narrow streets and often no sidewalks, makes the task of reducing the level of environmental safety in megacities difficult, and in some cases impossible. On the other hand, urban areas are constantly increasing due to the introduction of new districts, residential areas and cottage settlements, which requires taking into account the level of environmental safety at the planning stage of their development.
Energy consumption of small-since mixers in emulsification processes
Authors: Shulaev N S , Laponov S V , Shulaeva T V , Bondar’ K E 
Published: May 2020

Abstract
There is given a common method of calculation of power consumptions for emulsification at systems liquid-liquid in low volume mixing devices (rotary pulsating apparatuses and rotor-disc mixers) in this Article. Named mixing devices shown a high efficiency at processing of liquid-liquid systems and are widely used at chemical processes. It is shown that at determination of energy consumptions it is need to take in account energy dissipation processes, caused by viscous friction forces, which affect a significant influence at high gradients of speeds turbulent motion. It is obtained the ratio, which connects an angular velocity of rotor rotation of mixing device and a characteristic size of dispersed phase particles of a mixing device. There are given an experimental equations of consumed power of rotor-disc mixers on rotor rotations number and characteristic sizes of dispersed particles for th system water and diesel fuel. Also it is known that in decrease of dispersed particles size and in increase of volume consumption of the processed mixture, the consumed power is increase, and it due to the fact by increase energy consumption for creation of interphase surface.
Assessment of air pollution trends in Krasnoyarsk using indicators of sustainable development
Authors: Tokarev A V , Shaparev N Ya 
Published: May 2020

Abstract
This paper studies the state of atmosphere in Krasnoyarsk (Russia) in terms of sustainable development indicators based on data from State reports ‘On the state and protection of environment in the Krasnoyarsk Territory’ for the period from 2007 through to 2018. Gross emissions, their structure and dynamics as well as atmospheric pollution indexes are analyzed.
The energy industry in Russia: assessment of the state, problems and prospects
Authors: Sheveleva Oksana B , Slesarenko Ekaterina V , Mamzina Tatiana F , Vagina Nina D 
Published: May 2020

Abstract
An assessment of the state and the problems of the development of the energy sector of Russian industry, which plays an important role in ensuring both the country’s energy and national security, are presented in the article. In the course of the analysis, a number of positive aspects were identified that characterize the increase in the efficiency of the research industry, namely, there has been an increase in labor productivity, overall savings in energy resources used for own needs have been noted, and environmental profiles of enterprises have improved. However, along with this, a number of negative trends are revealed, the most significant of which authors consider to be: the growth of unprofitable enterprises, the decrease in solvency and current financial stability due to the significant exposure of the industry to opportunistic and seasonal fluctuations, as well as the persistent negative impact of the industry on the environment. An important feature of the energy sector of Russian economy is the lack of positive dynamics in increasing renewable energy sources in the total volume of its production, which does not allow talking about a significant increase in environmental security in this industry. The authors associate the perspective directions of the Russian energy sector development with the need to increase the share of renewable energy sources, and the development of the industry using traditional sources should be based on the interconnection of three important components: economic feasibility, resource endowment, and environmental acceptance.
Analysis of the use of methanol with a pilot portion diesel fuel
Authors: Chuvashev A N , Chuprakov A I 
Published: May 2020

AbstractDue to the depletion of oil fuel reserves, the deterioration of the environmental situation in many countries and the global problem of climate warming, there is a need to develop and use alternative, renewable fuels. In Kirov, at the Vyatka state agricultural academy, at the Department of thermal engines, automobiles and tractors, research on the use of alternative fuels has been conducted for many years. The article presents an analysis of the use of alcohol fuel (methanol) with a pilot portion of diesel fuel according to the economic and energy indicators of diesel 2CH 10.5/12.0 depending on the change in the speed of rotation of the crankshaft.
Problem analysis of improving the environmental performance of public transport
Authors: Ugarova L A , Kravtsova E A , Danilina N E 
Published: May 2020

Abstract
The transport system of any locality raises a number of environmental problems: atmospheric, hydrological, lithosphere and noise pollution. Due to the fact that the exhaust gas of gasoline engines contains a large amount of harmful substances, many manufacturers of passenger transport do not consider gasoline as the fuel of the future and alternative fuels are increasingly being used in world practice. This paper analyzes the problem of improving the environmental performance of public transport, provides solutions to the problem of air pollution in various developed countries, formulates the most important criteria for the design of environmentally friendly buses and presents a hybrid bus model using an exhaust turbine running on ethanol, based on an analysis of the design city buses of various manufacturing companies.
Inhomogeneous pollution by particulate matter of the atmospheric surface layer of the Oktyabrsky district of the city of Krasnoyarsk in 2019
Authors: Zavorueva E N , Zavoruev V V 
Published: May 2020

Abstract
Using the air monitoring system of the Krasnoyarsk Scientific Center of the SB RAS, the nature of the atmospheric surface layer pollution by particulate matter (PM2.5) in the Oktyabrsky district of the millionth industrial city was studied. The average annual and seasonal concentrations of PM2.5 were determined in the area where six air monitoring stations are located. Statistical analysis showed that the distribution of PM2.5 in the air is uneven in the Oktyabrsky district of Krasnoyarsk. In the summer air pollution was caused by the smoke of large-scale forest fires in the northeastern regions of Siberia.
Matrix model of energy audit
Authors: Izmailov E B , Amuzade A S , Tankovich T I , Shevchenko V V 
Published: May 2020

Abstract
The work attempts to build a mathematical model of energy audit as an activity associated with a complex of technical, organizational and economic events. Measures of these events are aimed to identify the possibility of cost-effective optimization of the consumption of energy resources at industrial enterprises. The goal of the energy audit is to identify sources of wasteful energy consumption and energy losses, to develop a comprehensive energy saving program, and to increase energy efficiency. The logical basis of the activity under consideration is the presentation of the cobination of energy and material flows in the enterprise, as a set of connected graphs. The number of graphs considered is determined by the many types of material and energy flows (electricity, thermal energy, enterprise products, etc). The node of the graph, depending on the details of the description, can be either an entire enterprise, which will be a set of interacting enterprises, or a workshop, or installation, etc.