bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development and testing of a conveyor for detecting various types of vehicles when transporting agricultural products from the field
Authors: Uspenskiy I A , Rembalovich G K , Yukhin I A , Ryabchikov D S , Stepashkina A S 
Published: June 2020

Abstract
Research purpose: development of a technology that will detect various types of vehicles in the image. To achieve this purpose it is necessary to solve the following objectives: Highlighting requirements for the technology being developed; Development of the technology for finding an object in an image; The choice of methods and algorithms for the allocation of objects for the development of the technology; The choice of methods and algorithms that allow detecting objects of a certain class; Implementation of the developed technology in the software system. The scientific novelty of the work lies in the application of previously known methods, which have been shown to be effective in other studies, to a new object of study, namely, to detect in images vehicles of various classes used for the transportation of agricultural goods. The practical value of the expected results lies in creating the software based on the developed technology, which makes it possible to detect vehicles of a certain class with a high degree of probability in a static image. The development of such software will automate part of the business processes and reduce labor costs. The following methods are used as the main ones in the developed technology: the HOG method (histograms of oriented gradients) and the support vector method (SVM).
Analysis of reliability and sustainability of organizational and technical systems of railway transportation process
Authors: Olentsevich V A , Belogolov Yu I , Grigoryeva N N 
Published: June 2020

Abstract
The increase in the throughput and processing capacity of railway stations in many cases is solved through organizational and technical measures, which makes it possible to solve this problem only partially, while limiting the possibility of increasing the volume of work in the future. Private funds should become investors in the creation of specialized points for bulk staging and preparation of station cars. Car owners and manufacturers, leasing companies, and rolling stock operators are interested in creating this type of stations. The layout of the stations specialized for the car staging should ensure the implementation of a complex of processing operations: reception, sorting, dispatch, technical inspection, all types of maintenance and repair. The article presents the dynamics of the throughput capacity of the East Siberian Railway. It analyzes the indicator un-der consideration with parallel and non-parallel schedules, which determined the main factors affecting the throughput capacity of railway stations and sections of the East-Siberian Railway and the degree of their significance. To determine the main ac-teal reasons for reducing the throughput capacity of railway stations and improving the quality of use of the indicator in question, the Ishikawa diagram was constructed. It provides a systematic approach to determining the root causes of the problem under consideration based on data on the throughput capacity of railway stations in Russia in 2013-2015. The analysis of the Ishikawa diagram identified the main factors: mismatch in the level of development of the federal railway network; errors in the management of car fleets; excess of car fleets; non-uniform arrival of car traffic volumes; decrease in the quality of car fleet management; private car fleet growth.
Maintenance and repair management taking into account specialization, cooperation and unification within a united bus company consisting of several branches
Authors: Pozhivilov N V , Maksimov V A , Krylov G A , Zavgorodniy A A 
Published: June 2020

Abstract
The issue of maintenance and repair management of fleet in a bus transit agency consisting of several branches is presented in the article. Technical base development takes place due to increasing of effectiveness as a result of specialization and cooperation of maintenance and repair, as well as using maximum potential, reducing and optimal costs allocation. The minimum total reduced cost was taken as a criterion for the efficiency of production placement, focusing on the costs associated with the choice of specialization and subsequent cooperation of maintenance (mainly the costs of transportation of units and vehicles between the branches). The management approach of cooperating in the issue of maintenance and repair of buses is aimed at the distribution of a particular type of work between the technical bases of different branches of the united transit agency. The applied method is based on the common approach to the solution of the “transport problem” and adapted specifically for the united transport company involving two and more separate branches. The method was tested on the united agency operating urban buses in Moscow, aiming to allocate fleet maintenance with regard to its needs and resources.
Taxi transport characteristics in Vietnam
Authors: Thai Huy Truong , Rementsov Andrey , Nguyen Khac Minh , Le AnhTuan 
Published: June 2020

Abstract
In recent years, economic growth and urbanization have been rapid in Vietnam, which has led to an increase in mobility in urban areas, especially in large cities. The government of Vietnam and the city authorities are trying hard to find the best solution, in which developing public transport is considered the most optimal solution to traffic urban problems. Hanoi and Ho Chi Minh City are the two special cities in Vietnam; they have applied the best policies for developing public transport and actually made a great leap forward in economy and tourism. However, the reality shows that the level of meeting the transport needs of urban people is still very low (about 14 % in Hanoi and 8 % in Ho Chi Minh). Obviously, there are objective and subjective reasons for this problem, such as: low quality of urban transport infrastructure, asynchronous development of urban transport network and the shortage of taxis and system bus. In particular, the management and monitoring of the operation of the means of public transport are very weak leading to poor quality transport services, reducing the attractiveness of the customer for the service of public transport. In this situation, the goal of increasing the efficiency of public transport to satisfy the needs of people in the large urban centers becomes a major and urgent problem. The article analyzed and evaluated the role of passenger transport in Vietnam’s economy. Important factors that will be needed to improve the quality of passenger service of Hanoi’s public transport system have been identified. The characteristics of managing and operating taxi cars of major passenger carriers are also analyzed and evaluated in this article.
Improving the performance of technical services personnel of car enterprises in digital ecosystems
Authors: Trubitsyn V A 
Published: June 2020

Abstract
Based on the research, the article discusses the trends in the use of digital technologies and the creation of digital ecosystems in the road transport industry. Transport informatization has created the basis for a transition to a new level of functioning in the context of digital production ecosystems, which focuses personnel’s attention on increasing labor productivity, accelerating interactions with consumers of transport and car maintenance units. However, the digital environment requires automotive personnel to improve existing and create new competencies related to digital literacy, information exchange, and increased communication skills. A digital ecosystem of the engineering and technical service of a car enterprise, a model of personnel competencies (by the example of a controller of the technical condition of vehicles) are proposed.
Analysis of failures of urban buses in the conditions of the transit agency “Mosgortrans”
Authors: Zavgorodniy A A , Maksimov V A , Pozhivilov N V , Krylov G A 
Published: June 2020

Abstract
The article presents the results of analysis of failures of low-floor urban buses LiAZ-529221, LiAZ-529222, LiAZ-621321 and LiAZ-621322 in the conditions of operation in Moscow. The research was based on the statistical data collected on failures of the bus modifications under consideration for the period from 01.08.2017 to 31.12.2018. As a result, the causes of failures of systems, assemblies and units, their seasonality, development of recommendations to improve the maintenance and repair system of LiAZ buses were identified. The research was carried out on the base of the branch of SUE “Mosgortrans”.
Application of digital technologies in higher education in “Materials Science” for transport complex
Authors: Chudina O V 
Published: June 2020

Abstract
The article is devoted to the problem of digitalization of higher technical education in transport engineering and is aimed to improve the efficiency of independent work of students and improving the classroom work of the teacher with students through the visualization of lecture materials. The article presents a new electronic educational resource (EER) on the subject “Material Science”, which is a multimedia textbook on the chapter “Theory of heat treatment” and “Practice of heat treatment” for visualization of complex hidden processes occurring in metals during heat treatment. Specific examples show how the usage of multimedia teaching methods in the educational process contributes to the visualization of invisible diffusion processes, which are accompanied by the formation of micro-and nanosized structural components. The technology of open modular systems (OMS), used to create a software environment, its advantages and wider interactive possibilities in comparison with traditional software tools are described.
Determination of Power and Kinematic Wheel Parameters when Rolling against a Drum
Authors: Balabina T A , Simonov D S , Rogov V R , Mamaev A N , Vorontsov A S 
Published: June 2020

Abstract
Car tire tests, including rolling resistance tests, are often performed on drum stands. Car tests on drum stands of various designs are also becoming more widespread: with a different number of drums, their locations and types of drives. However, in the literature there are no works describing the process of interaction of the wheel with the drum. In this regard, there is a need to consider the mechanics of the interaction of an elastic wheel with a drum and determine its kinematic and power characteristics, which is the task of this study. The mechanics of rolling the wheel against the drum is considered, taking into account the frictional interaction of the pair “elastic wheel – rigid drum” using the theory of preliminary displacement of the wheel elements in the zone of contact with the drum. This made it possible, inter alia, to obtain relationships for determining the rolling resistance caused by hysteresis losses in the wheel material, the tangential force acting in the contact, the moment on the wheel, the power of friction losses in the contact, the coordinates of the boundary of the adhesion and sliding sections in the contact of the wheel with the drum, relative loss of speed (slippage) of the wheel. The interaction of the wheel with two drums is also considered.
Investigation of changes in the properties of engine oil depending on the sulfur content in gasoline
Authors: Khaziev A , Laushkin A 
Published: June 2020

AbstractIn exploitation of modern cars, there are cases of power unit failure due to a sharp deterioration in the properties of engine oil and loss of performance of the lubricant. The article describes the causes of failures of the engines of modern cars associated with the loss of the resource of oil in the engine and the processes occurring in the lubricant. They are increase of kinematic viscosity, decrease of Total Base Number, increase of the acid number, decrease of flash point, increase of water content, decrease of additives content, increase of wear products. Decrease in properties and motor oils lifetime was caused primarily by the deviation of the physicochemical parameters of applied motor gasoline beside regulatory petrol. The process and chemical reaction of sulfurous acid formation during engine operation are described. We have established a pattern of changes in physico-chemical parameters of motor oils in automotive gasoline sulfur compounds. Made quantification is produced by the combustion of 1 kg of gasoline sulfur acid. The low values of the loss of the alkaline number of motor oil, caused by the low sulfur content of the ecological class 5 gasoline, are a prerequisite for an increase periodicity of oil change in the operation of modern cars.
Analysis of operating modes of a traction electric drive
Authors: Klimov A V , Filatov V V , Maslennikov I K , Ospanbekov B K , Belash V Ch 
Published: June 2020

Abstract
Nowadays the modern society thinks more about the adverse impact of transport on the environment. Therefore development engineers and manufacturers of automobile and bus facilities have recently started to take more interest in creation of transport facilities with a reduced impact on the environment. These transport facilities comprise an energy storage unit as a traction battery that has a key impact on their cost and characteristics, such as like a carrying capacity and a distance on one charge. Development engineers must get all the necessary technical specifications of system components, as well as rapidly and flexibly evaluate an impact of their changes on service characteristics. It allows applying a simulation approach by using the Matlab/Simulink software suite while analysing motion modes under service conditions. This article contains the results of such an analysis for motion modes of passenger vehicles with high capacity depending on their routes. This analysis was executed by recording speed rates with subsequent statistical processing. It shows that average running speeds don’t exceed 15 km/h. And the vehicle doesn’t reach any maximum speed values. It has been established that the electric engine working points relate to the first zone of the external characteristic. The most typical speed values do not exceed 1/3 from the maximum speed, and the values of a torsion tractive effort torque and a brake torque are within the limits and do not exceed 35 from the maximum short-time torque.
Influence of temperature and geometric parameters of elements in a turbocompressor seal assembly on its operability
Authors: Nikitin D A , Asoyan A R , Nikitin P D , Turoverov C A 
Published: June 2020

Abstract
Currently, most power units using internal combustion engines are equipped with turbocharging and that is explained by the requirements for efficiency, environmental safety and specific power characteristics. At the same time, the turbocompressor (TCR) is one of the resource-determining elements of power units, which accounts for a significant number of failures. Studies conducted towards the analysis of turbocompressor failures have shown that the main reason for it lies in a malfunction of the seal assembly, which is a consequence of extremely unfavorable conditions for its operation, consisting in a high (up to 800 °C) exhaust temperature, aggressive environment, a high (up to 120,000 min−1) rotor speed, the sliding speeds of the mating parts, up to 150 m/s. Oil for lubrication and cooling of the TCR is supplied through floating plain bearings, while the cavities of the turbine and compressor are isolated by means of the seal assemblies. Violation of their operability leads to the ingress of oil in a cavity of the impellers, to the imbalance of a rotor and, ultimately, to a turbocompressor failure. The determining factor affecting the operability of the seal assembly is a heat density of its parts. This factor is especially manifested in operating under forced conditions and engine shutdown, when cooling of a turbine volute is stopped by blown air, and a bearing assembly is stopped by circulating oil. In this case, a large part of the thermal energy is transferred from a heated turbine volute to the seal assembly and to the bearing assembly. The focus is on the temperature influence on performance of the turbocompressors’ sealing rings.
The regression model of automated control of timely replacement of air diesel air filter
Authors: Aslamova V S , Taiwan T , Rush E A 
Published: June 2020

Abstract
The article analyzes the literature sources and experience of four-year operation of the diesel locomotive of series 2TE116UM No. 016 on the Ulan-Bator railway (Mongolia). The results of the analysis show that the turbocharger does not exhaust its service life until regular preventive maintenance, due to the onset of such a phenomenon as surging, stability of its operation is disrupted. It has been established that the main causes of surge emergence are: flow stall from the diffuser walls, and/or from the guide vanes, and / or from the impeller blades and others. These deviations from the operating conditions are caused by various factors, the main among which is the contamination of the air filter. The dynamics of the onset of surging, the inspection and the replacement of the air filter are analyzed. An empirical dependence of the air flow on the degree of pressure increase in the turbocharger is obtained. In order to automate the control of the turbocharger’s unattended operation in the diesel locomotive operation mode set by the controller, the dependences of the pumping distance on the ambient temperature, the degree of pressure increase and the pressure at the inlet of the turbocharger, depending on the degree of air filter contamination, were investigated. The source data from the controller was processed in the Statgraphics Plus package and adequate regression equations were obtained to determine the running period magnitude before the surge start from each parameter individually and from the combined effect of all parameters. The coefficients of determination of the regression dependencies obtained are 92-99%.
Methods for determining transport delays at simple intersections
Authors: Bedanokov M K , Guketlev Y H , Udzhukhu A Z , Labutin A S 
Published: June 2020

Abstract
The article analyzes the flow of traffic to the city of Maikop. Existing methods for determining transport delays at intersections have been considered. It is established that the assessment of transport delays at intersections with a railway crossing is important from the point of view of traffic safety. The subject of the study is the intersection of Pushkin and Zheleznodorozhnaya streets in Maikop. The object of the study is the transport delay at this intersection. A new approach for transport delay calculating has been proposed. Preliminary results of the study have been presented; the author’s formula for calculating transport delays has been given. The proposed method for transport delay calculating at another intersection has been verified.
Development of an approach to the selection of the necessary method of arrangement of the left turn in the area of controlled intersection
Authors: Dorokhin S V , Novikov A N , Zhulai V A , Likhachev D V 
Published: June 2020

Abstract
In this article the analysis of the main ways of the organization of the left turn in a zone of the regulated intersection with use of foreign and domestic scientific sources is carried out. In the analysis the authors determined that today in the choice of the necessary way of organizing the left turn option uses a minimal set of data, namely, intensity of traffic, causing a traffic controlled junctions may not be effective. Studies of changes in the main characteristics of the traffic flow as a result of conflict analysis “left turn-direct conflicting flow” allowed the authors to develop a new approach to the selection of the necessary method of arrangement of the left turn, taking into account changes in the main characteristics of the traffic flow – delay, speed and queue length. The experiment showed the feasibility of using the proposed approach.
Results of parking survey in the central part of Moscow for new tariff determination
Authors: Pospelov P I , Martyakhin D S , Rudakova V V , Strokov D M 
Published: June 2020

Abstract
The need to conduct a study of the parking space in the center of Moscow was caused by a significant overload of paid parking lots and, thus, traffic jams due to car mileage in search of free parking spaces in the central part of the city, increased noise and air pollution. Excessive loading of parking lots also leads to numerous violations of parking rules. The demand for parking within the Boulevard Ring is determined by the concentration of historical monuments, government agencies, museums, exhibition halls, shops, leisure facilities and other facilities that are extremely attractive to residents and visitors of the city. The results of one of the survey stages included the following: the inventory of existing car parking within the territory in question and the indicators of the current level of the parking space system development in the territory under consideration. The inventory included the analysis of parking place location with the allocation of parking lots on the street-road network, in underground and elevated capital structures, and in courtyards. Simultaneously with the monitoring, they carried out mass surveys of drivers parking cars in paid parking lots of the road network.
Thermal contact conductance at melting and crystallization of metal micro-droplets
Authors: Minakov A , Morikawa J , Zhuravlev E , Ryu M , Schick C 
Published: June 2020

Abstract
To measure interfacial thermal contact conductance in fast thermal processes, ultrafast scanning calorimetry combined with high-resolution high-speed infrared thermography is applied. The dynamics of temperature distribution on the sample surface is measured by thermography during melting and crystallization of a tin particle of about 580 ng and 70 μm in diameter. The temperature difference on the sample/sensor interface is measured and used to determine the interfacial thermal contact conductance with acceptable accuracy on a millisecond time scale. It is shown that the temperature difference can be of the order of 100 K at melting and crystallization. This is very essential for applications with fast temperature changes like additive manufacturing and for calorimeter calibration. The method can be applied to different materials in fast thermal processes on a micro-scale. During crystallization, the effect of reheating (about 100 K) is observed.
Virtual corrosion testing on stainless steel AISI 304 welded pipe with Hydroxyethyl Cellulose in 3.5% NaCl solution and turbulent flow
Authors: Boonsa Parinya , Rodchanarowan Aphichart 
Published: June 2020

Abstract
A virtual corrosion testing machine is used to investigate the corrosion inhibition efficiency and mechanism of an inhibitor in stainless-steel 304 pipes under turbulent flow conditions. The pipes are welded by the gas tungsten arc welding method and evaluated in 3.5 percent sodium chloride solution with absence (0 ppm) and presence 100, 300, and 600 ppm hydroxyethyl cellulose concentrations. The solutions are absence and presence the inhibitor, are fed in the welded pipe at a flow rate of 7,500 and 15,000 cm3 per minute as behaves to be turbulent flows. Electrochemical impedance spectroscopy and potentiodynamic polarization techniques are used to investigate the corrosion inhibition process. The inhibitor can adsorp on the surface of stainless steel welded pipe and inhibit the corrosion rate of the stainless steel. The concentration volumes of the inhibitor are correlating the corrosion rate in the same direction. The turbulent flow is to reduce the adsorption mechanism of the inhibitor, affect to corrosion reaction for the stainless-steel welded pipe and relate to the corrosion rate. If the flow rate increases, the corrosion rate would also increase. The corrosion inhibition efficiency is reached up to 66% by addition HEC 600ppm concentration in the condition. Pitting corrosion is observed on the heat-affected zone of the welded pipe by scanning electron microscope.