bluuebunny/crossref_metadata_2025_split huggingface dataset:
Video traffic estimation algorithm
Authors: Soroka E O , Obedin A V , Karaseva M V , Bartenev V A , Zeitler A V 
Published: January 2020

Abstract
The paper investigates the evaluating task of the traffic as the registered number of vehicles of one of the three classes (a bus, passenger car or truck) that passed in a certain direction per unit of time, according to data from CCTV cameras in real time. For simplification this problem solving was divided into three components. They are registration of traffic flow objects and their classification, finding trajectories of fixed objects and determining traffic lanes, as well as counting objects in each direction. A comparative analysis of the existing algorithms, software and hardware systems that solve problems similar to the problems was carried out; also, a proprietary approach was proposed. The analysis describes the feasibility for developing their own approach due to the lack of an algorithm that meets all the requirements, such as estimating the traffic on the basis of data from surveillance cameras. Besides, the existing hardware and software systems are of the high cost and complexity. The YOLO artificial neural network was used to recognize objects on the frame in the form of rectangles containing the image of a vehicle. To build tracks, objects are compared frame-by-frame based on a set of characteristics, including a simple (average) perceptual hash and the coordinates of the corresponding rectangle. The developed algorithm for constructing trajectories of moving traffic objects, highlighting lanes of automobile traffic and counting vehicles is proposed as a software module. The testing results concerning the quality of the algorithm are introduced. The main advantages and disadvantages of the proposed approach are highlighted.
Methodology for assessing the competitiveness of space services
Authors: Yudin A V , Grosheva P Yu 
Published: January 2020

Abstract
The main components of the competitiveness of space services are their price and quality, as well as the ratio of these parameters. These indicators are determined by the values of technical and economic parameters of the service. The competitiveness of a space service refers to its ability to meet the requirements of a particular consumer in a given market and period of time in terms of quality and consumer costs for the acquisition and operation (or consumption) of this service. In order to increase the competitiveness of space services and their commercialization in the domestic and international markets, it is necessary to have an objective assessment of their competitiveness and ability to solve economic problems with a high accuracy. The article contains developed methodology for assessing the competitiveness of space services that used to solve specific economic problems in the interests of various sectors of the economy. Based on the assessment of the competitiveness of space services aimed at solving sectoral economic problems, the growth trends of economic sectors can be identified, and economic growth scenarios due to the emergence of highly competitive space services can be formed, replacing traditional methods of solving problems.
Methods and formal models of intelligent analysis of weakly structured data
Authors: Rabin A V , Petrushevskaya A A , Sinitsin O V 
Published: January 2020

Abstract
The article presents a formal presentation of four ontologies of knowledge bases of the software environment: ontology of a problem area, linguistic ontology, ontology of precedents, ontology of rules for analyzing texts in natural language. When developing the knowledge base of the software environment, it is necessary to formulate requirements for the model of knowledge representation, the ontology. The development of a unified environment for semantic analysis of flows of weakly structured information that implements modern intelligent algorithms for processing text information will greatly facilitate the decision-making process by a specialist in the time constraint mode, due to the possibility of using a single unified bank of expert knowledge in the work of the question-answer system, and will also allow an automated semantic verification of information flows in order to provide information ion safety organization.
An implementation of artificial neural networks into behavioral analysis system
Authors: Anashkin E V , Zhukova M N 
Published: January 2020

Abstract
The paper describes the architecture of the behavioural analysis system in development. This system is directed to inner threat countering in computer systems through user behaviour analysis. A part of system’s working algorithms is additionally presented together with the architecture. Also, next question is being decided - possibility of applying artificial neural networks for detection behavioural deviations instead comparing of statistical parameters.
DNA-based image encryption algorithm
Authors: Gasimov V A , Mammadov J I 
Published: January 2020

Abstract
The development of a new image encryption algorithm using real structures of deoxyribonucleic acid (DNA) molecules is considered. In the proposed algorithm, the encryption process is performed by confusing and rearranging the pixels of the image based on the coordinates of the chaotic points obtained by the chaos game of DNA symbols, the sequence of DNA symbols, and the encoding rule. The selection of a specific DNA sequence from the Databank and the determination of the encoding rule for DNA symbols is based on the secret key.
Cognitive decoding of redundant block codes in the system of processing and protection of biometric data of air passengers
Authors: Gladkikh A A , Volkov Al K , Volkov An K , Il’in V M , Kozlov D A 
Published: January 2020

Abstract
The article proposes a unified principle of permutation decoding (PD), which applies to redundant systematic block codes. This method allows using correction capabilities of such codes, but in the classical interpretation, the method requires cumbersome matrix calculations, which does not allow using the positive properties of the error correction method. The computing process is excessively complex. Therefore, to reduce the negative effect in the PD system, it is proposed to use the cognitive principle of data processing at the channel level, which significantly reduces the decoder complexity and ensures PD application in the air passenger biometric data systems.
Method and results of laboratory tests of the device for application of mineral fertilizers
Authors: Shamin A E , Gerasimov A R , Igoshin D N 
Published: January 2020

Abstract
The process of application of mineral fertilizers with simultaneous sowing of sugar beet seeds should ensure timely feeding of root vegetables with nutrients, at the same time creating a favorable zone for comfortable development of the fetus root system. The method of planning research of tight sealing body consists in selecting of certain number of experimental tests to solve the task. However, the number of tests received should be minimal, with the maximum quality of the final result, in order to analyze the obtained data and to report these results in the graphs.
Features of fatigue processes occurring in restored welded joints of offshore fixed platforms
Authors: Starokon I V 
Published: January 2020

Abstract
There are significant offshore oil and gas resources on offshore and ocean shelfs in Russia, which are developed using offshore fixed platforms. These platforms work in adverse conditions and are subjected to extensive structural deterioration characterized by enormous stress from environmental, which leads to problems when extending the life of offshore platforms, and in particular to assessing the life of repaired welded joints of platforms. Currently, there is insufficient information about the resource of a repaired connection differs from a new one or not. Based on the conducted experimental studies, the author discovered the location of points in the restored welded joint, for which there is the greatest risk of cracking. The causes of cracks in the restored welded joint are combinations of unfavorable factors: the presence of a stress concentration zone, the presence of a heat-affected zone with reduced ductility characteristics and the effect of high residual stresses.
Study of technological modes of formaldehyde-containing solid waste pyrolysis
Authors: Rasstegaev A N , Tarantseva K R , Golubovskiy V V , Tchufistov O E 
Published: January 2020

Abstract
The technological modes of medium-temperature non-oxidative pyrolysis of formaldehyde-containing solid waste are studied, using the example of particle boards waste. During the study, the moisture content of formaldehyde-containing waste of particle boards and the preheating temperature of the pyrolysis chamber varied in intervals of 5…35 % and 400…700 °C respectively. It is established that the most rational value of the preheating temperature of the pyrolysis chamber is in the interval of 550…600 °C. It was found that temperatures more 600 °C do not lead to a significant decrease in the duration of the pyrolysis process of formaldehyde-containing waste of particle boards, and temperatures less 550 °C lead to a significant increase in the duration of the pyrolysis process. It is shown that the moisture content of the waste of particle boards has a great influence on the duration of the pyrolysis process, when the waste moisture content is more than 15%, the total pyrolysis process time is significantly increased.
The analysis of work of presses continuous action when processing wood
Authors: Sergeevichev Alexander , Sergeevichev Vladimir , Sokolova Viktoriia , Markov Viktor , Kretinin Viktor 
Published: January 2020

Abstract
In case of application of smooth hold-back rolls from wood laminated plastics and a compregnated wood which elastic modules are close to an elastic modulus of the wood given by rollers, deformations of the roller and wood can be determined by the given formulas. Deformations are arcwise connected with loadings and gradually increase with their increase
Modeling the dynamic characteristics of a high voltage asynchronous electric motor
Authors: Ryumin Evgeny V , Enikeeva Elza R 
Published: January 2020

Abstract
Mathematical models of the individual modules of the complex electrical load node are considered. A review of the well-known method of calculating the dynamic characteristics of the asynchronous motor (AM) supplemented with new analytical dependencies allowed us to explore the process of its launch with compensating devices in different voltage values in the power networks for supply and distribution. The analysis of the results of mathematical modeling of the dynamic characteristics and electromagnetic compatibility of the asynchronous motors of the extruder large unit capacity of 5.7 MW in steady and transient conditions with other power consumers considered node load.
Some features of the physicochemical properties of structural materials used in the clinic of orthopedic dentistry
Authors: Medvedeva N N , Kiprin D V , Samotesov P A , Salmin V V , Marugina T L 
Published: January 2020

Abstract
The study of modern basic materials used in orthopedic dentistry has been carried out. The basic physicochemical properties of the base materials, the characteristics of the materials, the features of the influence of the base materials on the tissue of the prosthetic field have been considered.
CFD modeling of aerosol flow through a granular filter with porous granules
Authors: Soloveva O V , Khusainov R R , Yafizov R R 
Published: January 2020

Abstract
In this work, we made a comparative calculation of a granular filter with different shapes of the granules. We created granular filter models with solid and porous granules. The diameter of the granules was 5 mm, and the porosity was ε = 0,8. A comparison was made on the deposition efficiency, pressure drop, porosity, and filter quality parameter. We have found that for a filter with porous granules, the particle deposition efficiency is slightly lower than for a filter with solid granules. However, the pressure drop is an order of magnitude higher for a filter with solid granules, which ensures the maximum value of the filter quality.
Features of physical and mechanical properties of materials used in orthopedic rehabilitation of patients
Authors: Medvedeva N N , Kiprin D V , Levenets A A , Salmin V V , Gorbunov N S 
Published: January 2020

Abstract
Basic materials have been studied. Types of applied basic materials, readings for application are considered. In a comparative aspect, their physical and mechanical properties are considered, and features arising in the manufacture of dental prostheses are indicated.
Investigation of the efficient thickness of the porous filter based on the quality parameter
Authors: Soloveva O V 
Published: January 2020

AbstractIn this work, we conducted a study to identify the effective thickness of the porous filter. Initial models of porous structures with cell diameters of 6 mm and 4 mm and a thickness of 10 mm to 110 mm with a porosity of 0.7 were created. We compared porous structures with each other in terms of efficiency, pressure drop, and filter quality factor. It was found that the particle deposition efficiency and the filter quality factor practically do not change when the thickness of the filter medium is 90 mm for the case with a 6 mm cell diameter and 70 mm for the case of 4 mm cell diameter. Also, if we take the results at which the efficiency is quite high, then we can use porous structures with a thickness of 50 mm in the case of a 6 mm cell diameter and 20 mm in the case of a 4 mm cell diameter.
Influence of alcohol-fuel emulsions on effective indicators of the diesel depending on change of a corner of injection of fuel
Authors: Chuvashev A N , Chuprakov A I , Anfilatov A A 
Published: January 2020

Abstract
Today in our country and around the world much attention is paid to the environmental situation. Road transport plays a significant role in environmental pollution, especially air pollution. One of the most effective ways to reduce exhaust emissions is the use of alternative fuels, including those produced from renewable raw materials. Such fuels are methyl and ethyl alcohols, as well as emulsions based on them. The use of these fuels in spark-ignition engines has been used for a long time and has shown its effectiveness. At the same time, the question of the use of the above fuels in automobile and tractor diesels has not been studied. In addition to reducing the toxicity of exhaust gases at work of engines on alternative fuels, noted by most researchers, there is a need to further explore effective and economical indicators of the combustion process. The article presents a comparative analysis of the use of diesel fuel emulsions with methanol and ethanol and concludes on the effectiveness of the use of alcohols as an additive to diesel fuel.
Recycling of glass fibers sheets from thermoset reinforced plastic using thermolysis method
Authors: Protsenko A E , Pimenova ED , Petrov VV 
Published: January 2020

Abstract
This article presents research data on the process of recycling fiberglass reinforcing fillers from polymer composite materials. The analysis of the thermal stability of the polymer matrix is carried out. In this work, the thermolysis of fiberglass reinforced plastic based on E-glass and the epoxy vinyl ester binder was carried out at 400 °C. The influence of thermolysis time on the strength of composite materials based on regenerated reinforcing glass filler was studied. The PCM sample made of the filler obtained by 30-minute treatment at 400 °C and cooled in water withstands the bending load by 1.6 % lower than that of the primary material.
Methods for assessing the impact of the energy fields of implantable wireless charging device and biotelemetric system on experimental animals
Authors: Rabin A V , Petrushevskaya A A 
Published: January 2020

Abstract
The article describes the influence of electromagnetic fields during testing on experimental animals (rats) of a developed experimental prototype of a device for providing wireless charging of implant batteries. The invention relates to medical implantable devices that receive transdermal energy transfer and is aimed at solving the problem of optimizing this type of energy transfer. A magnetic field of any origin affects individual organs and the biological organism as a whole. The article presents the main indicators affecting biological objects, namely: the relative magnetic permeability of the environment, the magnitude of the wave, the power that is distributed in the dielectric material with losses, the penetration depth of the electromagnetic wave and the magnitude of the wave resistance. The integration scheme of prototypes of a wireless charger and an implantable biotelemetric system is considered. The testing of the performance of a wireless charger while integrating with an implantable biotelemetric system is considered in details. The test results confirmed the compliance of these parameters with theoretical ratios and the requirements of technical specifications.
The trend for environmental engineering in agribusiness: leaders and prospects
Authors: Savchenko Y Y , Goleva O G , Korchagina I A , Ovsyannikova A V 
Published: January 2020

Abstract
The article discusses global shifts in the global agricultural development market, as well as in Russia. One of the main conditions for the development of agribusiness at the present stage is the formation of an effective innovation environment. The main negative trends in the development of agribusiness in Russia are revealed. A low level of technologicalization and digitalization of agriculture is noted. The main priority areas for taking measures to protect and strengthen the development of agribusiness have been identified. Among which are considered the main components of the concept of environmental engineering of agribusiness. The paper analyzes the data on the production of organic products in Russia and the countries of the world. Examples of the development and implementation of advanced environmental engineering solutions in Russian agribusiness are given. According to the results of the study, the authors identified the TOP-10 trends in the development of environmental engineering in the agribusiness of Russia, as well as the main directions in the development of agribusiness. Ecological engineering will help realize the idea of sustainable development of agribusiness, which can simultaneously reduce the harmful effects on the environment and increase the efficiency of technological processes.
Influence flame speed and flame thickness on completeness of combustion hythane
Authors: Shaikin A P , Galiev I R , Epishkin V E 
Published: January 2020

Abstract
The article is dedicated to experimental and theoretical studies characteristics of flame propagation in combustion chamber of internal combustion engine with spark ignition and their influence on completeness combustion. It is theoretically and experimentally proved that relationship of flame propagation characteristics with completeness of combustion composite fuel is complex, non-linear, and depends on chemical composition combustible mixture and temperature in combustion chamber. It was revealed that an increase thickness near-wall unburned fuel layer, size of slots in combustion chamber and surface area of combustion chamber contribute to a reduction combustion efficiency of the fuel. It is shown that an increase rate flame propagation and a decrease thickness flame front leads to an increase completeness combustion fuel. It was revealed that proposed formula, using fundamental characteristics of flame propagation, allows calculating completeness combustion composite fuel. This indicates feasibility of using this formula at the design stage and fine-tuning low-emission and energy-efficient combustion chambers of engines and power plants.
Relationship between flame speed, maximum pressure and pulsation velocity in a variable volume combustion chamber
Authors: Shaikin AP , Galiev I R , Epishkin V E 
Published: January 2020

Abstract
The results of an experimental study of the relationship between the propagation velocity of a methane-hydrogen flame and the maximum pressure in the combustion chamber of variable volume and pulsating velocity are presented. The article shows that the influence of the pulsation velocity on the flame propagation velocity depends on the phase of combustion, i.e. the larger the size of the combustion zone, the stronger the influence of the pulsation velocity and the coefficient of excess fuel. When stoichiometric mixtures are burned, an increase in the pulsation velocity leads to a more noticeable increase in the flame velocity than when burning poor and rich mixtures. It was experimentally found that, despite the change in the coefficient of excess air, the concentration of hydrogen in the fuel and the pulsating velocity, a direct linear dependence of the maximum pressure in the combustion chamber on the flame propagation rate is maintained. Processing the results of foreign scientists showed the validity of the laws we obtained for combustion chambers of various designs. The results of the work can be used in the design and development of energy-efficient and low-emission combustion chambers of variable volume.
The technical condition assessment and the resource of safe operation of technological pipelines using electromagnetic-acoustic effect
Authors: Bashirov M G , Bashirova E M , Khusnutdinova I G , Luneva N N 
Published: January 2020

Abstract
The combined use of the electromagnetic-acoustic effect and a mathematical model of the dynamics of the stress-strain state of technological pipelines in the form of a transfer function to increase the reliability and accuracy of estimating their residual life, taking into account the degradation of the metal structure during operation has been justified.
Verification of the results of numerical modeling of the developed cavitation in a cramped flow by experimental data
Authors: Radzyuk A Yu , Istyagina E B , Pyanykh T A , Baranova M P , Grishina I I 
Published: January 2020

Abstract
The existing mathematical models of fluid flows accompanied by cavitation describe quite accurately the flow behavior in wide ranges of input parameters, however, the multiparameter and variety of problems to be solved require experimental confirmation of the calculation results based on the selected models. The article presents the results of calculations based on modeling the flow of a quasi-homogeneous mixture by the Navier-Stokes equation, and their comparison with measurements on an experimental setup with a similar geometry and flow parameters.
The transfer function of a traction asynchronous motor controlled by a four-square converter
Authors: Fayzullayev J S , Jurayeva K K 
Published: January 2020

Abstract
An expression for the transfer function of a traction asynchronous motor with a four-square converter is derived. It is shown that the basic properties of the traction motor, which are a four-square converter, correspond to the linearization coefficients. The values of linearization coefficients for a typical system in the entire region of equilibrium states are given.
Device for detection of the phase current asymmetry in the three-phase lines of non-traction consumers
Authors: Safarov A M , Jumaboyev S Kh , Sattarov Kh A 
Published: January 2020

Abstract
electrified railway transport receives power from the power system and operates on a single-phase current, which leads to uneven loading of networks of the traction power supply system. There is a danger of overload and additional losses of active power and electrical energy of three-phase electric motors by reverse sequence currents, therefore, any information obtained about the values (phase currents and voltages) allows carrying out corrective actions for the level of asymmetry. In this paper, discuss the design of the device for detecting the asymmetry of phase currents in three-phase lines is proposed. It is shown that the device can convert the DC current difference and measure three linear currents in a three-wire three-phase circuit.