bluuebunny/crossref_metadata_2025_split huggingface dataset:
An informational approach to quantizing the effectiveness of test data arrays for static memory devices
Authors: Akinina Ju S , Bolnokin V E , Tyurin S V , Akinin A A , Popov S A 
Published: May 2020

Abstract
While testing of the Static Random Access Memory (SRAM) the effective detection of potential faults is mostly determined by the structure and the algorithm of test arrays of data generation. This article proposes a multiplicative indicator W, which allows us to quantify the quality of test arrays of data. It is necessary to represent test arrays of data as a binary matrix, where each column corresponds to a certain bit of SRAM, and the rows correspond to test patterns. In this case, the process of sequential formation of test patterns is identified with the percolation process on a rectangular grid. It is assumed that percolation occurs at the moment when the maximization of the binary antagonisms both on the rows and on the columns of the binary matrix is provided. In this case, the binary sequences in all columns of the matrix must be different. Preliminary experimental data allows to suggest that the evaluation of the quality of test arrays of data based on the proposed indicator W can simultaneously be considered as the maximum efficiency of detecting a certain class of potential SRAM faults in a certain order of reading test data.
Computing process as a diagnostic object
Authors: Oblomov I A , Rzhavin V V , Pervova N V , Fadeeva K N , Gerasimova A G 
Published: May 2020

Abstract
The issues of improving the reliability of the functioning of the computing process are in the focus of attention of many developers and researchers of computer systems. Based on an analysis of research in this area, we came to the conclusion that the theory of reliability of computing systems has not yet been adequately developed, and none of the available groups of methods provides a satisfactory solution to the problems of reliable functioning of the computing process under given restrictions on cost and efficiency. The article discusses the main software methods of diagnosis and control, highlights their significant shortcomings. The conclusion is drawn on the need to develop new methods of program control and diagnostics of the computation process. These methods should ensure reliable functioning of the computing process in the conditions of hardware failures, and allow recovering the computing process and data from the consequences of failures in an acceptable time for the diagnosed process. The definition of the computing process as a sequence of elementary acts on a change in the state of the environment is refined. A path has been outlined for choosing mathematical models of the computing process, the most suitable of which are schemes of programs and algorithms.
Packet fragmentation as data protection method in automated systems
Authors: Gorokhov D E , Ryabokon V V , Kuzkin A A , Sherbakov V S , Kutsakin M A 
Published: May 2020

Abstract
The paper gives a detailed description of the information transfer covert channels and their main types. One of the most popular protection methods, the one with the software and the hardware applied to traffic encryption, against the information disclosure threat is considered. Experimental data obtained from the statistical analysis of the encrypted traffic and contributing into the identification of different modern info-communication services by the IP-package distribution and the time intervals between their arrival are collected and provided. A detailed classification of the information transfer covert channels is looked upon under the regulating documents in the in-formation protection sphere. An overall mechanism of a convert channel functioning in the automated systems is described. The areas to counteract the convert channels as an information disclosure threat are specified. The authors put forward a protection method employing IP fragmentation. A diagram of a pilot stand for the videoconference systems which was tested during the experiment is presented. The parameters and the characteristics of the obtained results are described. The results are analysed, and the possible applications of IP fragmentation as a method to counteract the information transfer convert channels in the videoconference systems are offered.
Thermal bar studies in the Krasnoyarsk Reservoir based on remote sensing datasets
Authors: Bondarenko E V , Gosteva A A , Shaparev N Ya 
Published: May 2020

Abstract
We study a possibility of using remote sensing datasets to identify a thermal bar in the Krasnoyarsk Reservoir. MODIS thermal band data have been used to produce sets of images showing temporal and spatial temperature distribution across the Krasnoyarsk Reservoir. Thematic maps of temperature distribution across the reservoir have been derived for the spring period of 2016-2019, which show the thermal bar period to commence and end up within about one and the same time interval.
Complete ultrashort pulse decomposition in modal filters with circular symmetry
Authors: Belousov A O , Gazizov T T 
Published: May 2020

Abstract
The work carried out simulation and optimization of structures with circular symmetry which is multiconductor lines to protect critical equipment from very fast acting pulses. Six cross section configurations of structures with circular symmetry are considered. Through parametric optimization, a complete splitting of the actuating pulse signal is achieved when the structures are matched with the path. The prospects of further investigations of structures with circular symmetry are shown.
Solving classification problems of visual evoked potentials for the brain-computer interfaces
Authors: Bulanov V A , Zakharov A V , Chaplygin S S 
Published: May 2020

Abstract
Development of the electroencephalogram-based neurocomputer interfaces requires application of the efficient algorithms for signal analysis. One of the methods of neurocomputer interface development is based on using single visual evoked potentials for characteristics control. However, it is a difficult task, requiring a combination of various methods of signal processing such as Blind Source Separation method, machine learning method and other modern mathematical and computational tools. In this paper, we drew a comparison between various classifiers for the visual evoked potentials recognition problem. The electroencephalogram records analyzed in this paper were published in the public domain.
Technologies and applications for the support of tourism in Krasnoyarsk region
Authors: Nozhenkov Alexander , Korobko Alexey 
Published: May 2020

Abstract
In this article we describe modern information technologies and applications for the support of tourism in Krasnoyarsk region. Applications provide services for registration of tourist groups and control of their travel. All information is automatically sent to the Territorial center of monitoring and forecast of emergencies, as well as to rescue and emergency services. The software is developed in form of a mobile application for tourists and online web-system for the emergency services.
Algorithms and methods of image classification for automated medical systems
Authors: Kovalev I V , Shelomentseva I G , Yakasova N V , Voroshilova A A 
Published: May 2020

Abstract
Modern medicine in the diagnosis of diseases increasingly relies on the use of automated image recognition systems. Automation is of particular importance in the diagnosis of socially significant diseases, when the quality and speed of diagnosis is important. The pathology processes imposes certain restrictions on the methods used, which are associated both with image quality and with the speed of analysis. The article discusses the algorithms and methods for classifying medical images as the basis for automated diagnostic systems; Criteria for choosing among them those methods that satisfy the requirements of the task are determined. Based on a comparison of compliance with the criteria of the methods, neural network methods were selected: a neuro-fuzzy network, a convolutional neural network, and self-organizing maps.
The role of digital technologies in economic development
Authors: Magomedov I A , Murzaev H A , Bagov A M 
Published: May 2020

Abstract
This work is focused on the main aspects of the development of the digital economy. The following work looks at the role of digital technologies in the economic development of modern society. The largest companies in the world influencing the development of the digital economy are considered and the influence of digital technologies on the attitude of society to the economy are also covered.
Industrial and ecological safety analysis for modeling oil and petroleum products spills in the Arctic waters of the Kola Bay
Authors: Katansky A A , Minchenok E E , Zhuravleva N G , Aleksandrova Ye Yu , Trotsenko A A 
Published: May 2020

Abstract
The paper analyses the industrial safety of the coastal and water areas of the Kola Bay of the Barents Sea when modeling the spill of oil or petroleum products. It gives a brief description of the methods and stages of liquidation of oil spills in the water and coastal areas as well as the main causes of accidents. It presents the results of physical and mathematical calculations in theoretical modeling of oil and petroleum products spills, namely: fire risk analysis, calculation of the minimum amount of combustible substance with partial destruction of the tank, calculation of probable areas of hazard boundary during an accident at the pump station, results of calculating the probability of explosion at the pumping station, and individual, collective and social risks. The most likely scenario is an event with partial depressurization (the probability will be 3.9·10−5 1/year): partial depressurization of the tank with liquid oil or petroleum products → oil slick formation → oil slick fire → personnel and equipment present in the hazardous area → exposure of people to thermal radiation. It was found that a minimum of 1182 kg of spilled crude oil is required for uncontrolled combustion to occur with an intensity of thermal radiation of not more than 4.2 kW/m2 m. The time to reach the maximum volumetric average temperature (894 K) in an accident at the pumping station is 136.8 minutes. In these calculations, the individual risk Rind = 3.31·10−5 1/year exceeds the regulatory standard, which shows an urgent need to reduce this risk. The collective risk is: Rcol total = 1.98·10−4 persons/year. Regarding the social risk, we can conclude that the minimum number of injured people will be three in case of an accident at the pump station or during the spill of oil or petroleum products into the Kola Bay, taking into account the fire development. The presented theoretical accident models will reduce the risk of major accidents involving petrochemical pollution of environmental objects, thereby preventing environmental damage, and the problem of the management of large oil spills at various facilities and technological systems of industrial enterprises will be solved.
Theoretical framework of the polymer waste thermal degradation
Authors: Petrov S K , Patrusheva T N , Matveev P V , Logunova T V 
Published: May 2020

Abstract
The article provides a theoretical analysis of the pyrolysis of polymer waste. The main products of pyrolysis are considered. The thermal degradation of polymers was studied depending on the composition of the materials. The main factors affecting the product distribution of pyrolysis of waste plastics are determined. Gaseous medium in the pyrolysis chamber plays a significant role in the process. The operating conditions of the pyrolyser are considered. The use of pyrolysis makes it possible to significantly reduce the amount of solid waste and increase energy savings without harming the environment and human health.
Modernization of gas treatment equipment from pollutants in alumina production
Authors: Shepelev I I , Kiryushin EV , Pilyaeva O V , Eskova E N 
Published: May 2020

Abstract
In this paper, it is the previous system of gas treatmenton sintering furnaces used at JSC “RUSAL Achinsk”, consisting of a dust chamber and electro filters, did not provide the necessary treatment degree. Old four-field electro filters were not effective and required constant replacement and adjustment of electrode systems and shaking mechanisms. Shown that the modernization of gas treatment equipment in alumina production reduces the emissions of polluted substances into the air. The introduction of technical solutions for modernization of obsolete and worn-out electric filters to more modern and efficient five-layer electro filters increases the degree of gas treatment from sintering furnaces from inorganic dust. The introduction of an additional stage of “wet” gas treatment on sintering furnaces in scrubbers has been confirmed by industrial tests, while ensuring high efficiency of gas treatment from fine-disperse dust. When using sub-sludge water as an irrigation liquid at the stage of “wet” gas treatment, it was not necessary to build additional treatment facilities, since the modernization project provides for its subsequent return to the hydrochemistry shop for technological needs.
Logic-sense model of primary oil processing plant safety assurance
Authors: Vakulenko M V , Zharinova N V 
Published: May 2020

Abstract
Safety of oil refining processes, their further technical improvement depend on how soon effective methods of information processing will be found, generalized schemes of reflection of the main dangers of these processes. Modeling of oil refining processes takes an important place in the study of safety issues. The results obtained are the basis for the subsequent systematization of the conditions for the occurrence of accidents and the systematic synthesis of measures to prevent and (or) localize them, eliminate the consequences (in case of occurrence) and reduce possible damage. The proposed model gives a clear idea to the production personnel of the main risks of the primary oil processing process, the consequences of accidents and the main directions of reduction of the plant risk.
Calculation of transition processes in stabilized power sources on the basis of a single-phase serial current inverter
Authors: Umarov Sh B , Rakhmatov D D 
Published: May 2020

Abstract
In article on the basis of an operational method the design procedure of transients duple key of converters of constant pressure in constant pressure with adjustable size of target pressure is offered. Are recived recurrent parities for required currents and pressure which allow to make calculation of transitional process at change of entrance pressure, change of loading and also at their simultaneous change to settle an invoice transients at change of loading. Also results calculation of transitional process in the form of time diagram’s are presented.
Investigation of the dependence of small rivers on the state of bottom sediments by mathematical methods
Authors: Nafikova E V , Dorosh I V , Alexandrov D V 
Published: May 2020

Abstract
Emergency inflow of contaminants into river waters, construction of various hydraulic engineering structures can have an adverse impact on the river ecosystem. Water quality assessment is necessary for operative water resources management, development of engineering solutions for water streams rehabilitation. In this work, application of genetic algorithms for selection of significant indicators of bottom sediments quality for water quality indicators of small rivers in the Republic of Bashkortostan (Russia) has been tested. Selection of significant parameters for indicators of water quality of small rivers was conducted from input parameters: hydrochemical indicators of water quality, indicators of quality of bottom sediments.
Thermal and material balances of the synthesis of PE block copolymers
Authors: Pliushchev V V , Nazarova M A , Bronskaya V V , Aminova G A , Manuyko G V , Shaikhetdinova R S , Guzaerov A M , Kharitonova O S 
Published: May 2020

Abstract
The complex two-phase model based on the well-mixed and two-phase models is presented. The profiles of concentrations and temperatures in microparticles are obtained. The average concentrations and temperatures at the active sites of the catalyst are determined. Heat exchange efficiency on the basis of temperature dependence on technological parameters was studied.
Monitoring of technogenic pollution of soil in the region
Authors: Zhichkina L N , Nosov V V , Zhichkin K A , Starikov P V , Vasyukova A T , Smirnova Z A 
Published: May 2020

Abstract
The purpose of the study is to conduct monitoring of technogenic pollution of soil in the Samara region. The objectives of the study are to identify the sources of technogenic pollution of soil, to analyze the minimum and maximum concentrations of heavy metal on long-term observation plots and background plots, to assess the average and the maximum values of total petroleum hydrocarbons (TPH) in soil of observed land plots. The allowable concentration levels of heavy metals (manganese, lead, cadmium, copper, nickel and zinc) in the soil of the Samara region are not exceeded. Mean heavy metal concentrations in soil did not exceed the maximum permissible concentration (MPC) and the approximate permissible concentration (APC) and was 0.1-0.6 MPC (APC). The maximum concentration of metals in soil was 0.1-0.9 MPC (APC). However, the obtained results were higher than background concentrations of metals. The mean concentrations of aluminium exceeded the background levels by a factor of 3.4-6.7. The maximum concentrations of aluminium in soil was observed in the area of the Samara metallurgic plant (ZAO ‘Arconik’) and was 9.2 of background.
Study of shrinkage of heat storage materials for building envelope structures
Authors: Aimbetova Indira , Suleimenov Ulanbator , Ristavletov Raimberdy , Baigenzhenov Omirserik 
Published: May 2020

Abstract
The article presents the results of thermophysical properties developed by the authors of heat storage materials for building envelope structures. Based on the results obtained, the materials obtained by mixing individual n-alkanes are distinguished by stable thermo-physical characteristics. Results of shrinkage of the developed heat storage materials depending on the temperature during crystallization and expansion during melting. Several shrinkage peaks and two heat release peaks were determined during crystallization and phase transition, which explains that the shrinkage coefficient curves and heat release graphs do not coincide. This is due to the complexity of the chemical composition of commodity paraffin, which contains other groups of hydrocarbons along with n-alkanes. The dependence of shrinkage of heat storage materials on temperature is obtained and their shrinkage coefficients from temperature are analyzed. Developed heat storage materials with a melting point of 250C provide energy savings by increasing the heat capacity of building envelope structures and can be used in the design of energy-efficient buildings.
Calculation of geometric parameters of diesel fuel ignition flares
Authors: Likhanov V A , Lopatin O P , Vylegzhanin P N 
Published: May 2020

AbstractThe fuel flare in the gas-diesel cylinder is the main source of ignition of the methane-air mixture, so the effective combustion of fuel depends on the processes that occur in it when vaporized fuel particles penetrate into the air and form a fuel-air mixture. Thus, the consideration of the parameters and structure of the fuel phase allows us to approach the analysis of the interaction between the methane-air environment and fuel particles, as well as the problems associated with the formation and burning of soot particles in the form of gas diesel.
Passenger gas diesels to preserve the city’s ecology
Authors: Likhanov V A , Lopatin O P , Vylegzhanin P N 
Published: May 2020

AbstractToday, one of the main tasks of manufacturers of automobiles and mobile power tools is to increase the efficiency of using motor fuels in internal combustion engines while reducing the aggressiveness of toxic components contained in exhaust gases. The paper deals with the main aspects of converting diesels to work on the gas-diesel cycle and presents the results of upgrading a city passenger bus with a modified power system for working on natural gas.
Innovative development technologies of oil and gas industries
Authors: Kiseleva O N , Kulbyakina A V , Ozerov N A 
Published: May 2020

Abstract
Development of oil and gas industries on the base of innovative trends is indicator of sustainable development of the economy of any state. Advancement of innovative trends in the development of the Russian oil and gas industry is the only way to preserve and hold favorable positions on the home and international markets. The authors propose to apply an integrated approach to the design and implementation of innovative development projects at oil and gas enterprises. First, oil and gas enterprises should widely introduce a wide range of innovative technologies with a high potential for internal reserves. Implementation of innovative technologies by empowerment of the energy resources allows for significant economic benefits and upgrading the efficiency of an enterprise within a short term. Another aspect of the problem is related with supporting innovation technologies interconnected with managerial technologies or managerial innovations being the changes aimed at providing a favorable environment for the outcome of innovative technologies. Creation of a favorable management environment as the basis in innovative processes is one of the key factors for successful development. The proposed solution will contribute to innovative development of domestic enterprises and the Russian economy as a whole.
Synthesis of a zinc oxide/graphene hybrid material by the direct thermal decomposition of oxalate
Authors: Little Daniel J , Pfund Jacob D , McLain Avery A , Sporie Jacqueline A , Lantvit Sarah M , King Seth T 
Published: May 2020

Abstract
Hybrid materials of zinc (II) oxide (ZnO) nanocrystals and graphene are of current interest due to their cheap, Earth-abundant composition, low toxicity, and varied applications in photocatalysis, sensing, and electronics among others. We have developed a novel methodology for the synthesis of such materials utilizing the thermal decomposition of zinc (II) oxalate in solid-state solution with graphene nanoplatelets. Although the procedure simply involves precursor mixing and heating, electronic interaction between the ZnO and graphitic phases is spectroscopically observed in the hybrid material—beyond that of a homogeneous mixture of ZnO and graphene—via powder XRD, XPS, and ATR-IR spectroscopy. The synthetic method employed can be easily tuned for the desired hybrid product stoichiometry, and is easily industrially scalable with minimal chemical waste products.