bluuebunny/crossref_metadata_2025_split huggingface dataset:
The results of the research on the pipelines protection from Dreissena on the water intake technological complexes of multi-purpose water supply systems for urban farms
Authors: Khetsuriani E D , Bondarenko V L , Ilyasov A I , Semenova E A 
Published: December 2019

Abstract
The main purpose of the Sengileevsky reservoir is currently the flow part accumulation of the Nevinnomyssky canal for municipal and industrial water supply of the city of Stavropol, the city of Mikhailovsk, Shpakovsky and Grachevsky districts, the irrigation of the river Egorlyk and the water supply regulation in the Rostov region and the Republic of Kalmykia, provision of water to the Right-Egorlyk Canal, Mezhdurechenskaya Environmental Protection Agency and incidentally, Egorlykskaya and Novotroitskaya Hydroelectric Power Station, Stavropol CPP. From the Sengileev reservoir water is supplied to the city of Stavropol and several other districts of the region, with more than 1 million people being provided with water. Water intake structures with a pumping station on the Sengileev reservoir are unique and have no analogues in Russia. Water is taken by pumps from a depth of 10 meters and then supplied by three pumping stations to a height of about 500 meters.
The water quality in the reservoir in different years mainly corresponds to classes II – III, “pure” or “moderately polluted” with a WPI close to 1, whereas in the tributaries for a number of sections the water quality may decline in certain periods to V-VI as “Dirty” and “extremely dirty”.
The main idea of the work is to use an environmentally safe technology to combat drainage, pre-purification of water in front of the sewage treatment plant and ensuring uninterrupted water supply in settlements at any time of the year.
On the air conditioning issue: the heat and mass transfer processes between water and moist air
Authors: Kalov R Kh , Balkarova S B , Kalov Kh M , Etezova M B 
Published: December 2019

Abstract
The variants of calculation formulas for heat and mass transfer in the convective processes, the radiant heat transfer and the mass between water and moist air transfer are given, taking into account the contribution of each of these processes. The simplified calculation formulas for the following options were obtained: the amount of heat transferred by radiant heat is insufficient or can be neglected; the heat flux transferred by convective heat exchange is not significant; mass transfer has low effect on the heat transfer.
System approach to the evaluation of a consumer appeal for the objects on the secondary housing market
Authors: Kalashnikov S Yu , Godenko A E , Kalashnikova Yu S , Tarasova I A 
Published: December 2019

AbstractA real property item of the secondary housing market is presented in a form of a multilevel hierarchical structure. An overall evaluation of a consumer appeal for the object under the study is carried out in terms of the chosen key indicators of housing appraisal with an application of the theory of quality, which is based on the quasi-arithmetic functional mean proposed by Kolmogorov-Nagumo. The elaborated methodology allows customers to choose the best variant of a real property item taking into account architectural and constructive decision of a building, usage of construction and finish materials, accessibility of urban and transport infrastructures, ecological area, as well as personal preferences.
Accounting for the light climate of the city of Nalchik when calculating natural light
Authors: Guketlov Kh M , Gukov A H 
Published: December 2019

Abstract
The mathematical model of the light regime in the considered constructional area has been developed. The amount of horizontal outdoor natural illumination from the sky with a standard brightness distribution established by the International Commission on Illumination (ICI) was determined in the annual cycle for the cities of Nalchik and Moscow. As a result of comparing the values of the amount of illumination for the cities of Nalchik and Moscow was determined, a correction coefficient for the light climate, the use of which will improve the technical and economic efficiency of the lighting devices when calculating with natural lighting, was found.
Development and testing of a steel regulating thermostatic valve
Authors: Antsiferov S A , Usmanova E A , Chirkova E V 
Published: December 2019

Abstract
A steel thermostatic valve group has been designed from a more affordable, cheaper domestic material - structural carbon steel grade PS08, which makes it possible to improve the manufacturability, installation, ease of the developed product operation, and reduce production costs. As a prototype, bronze thermostatic valves with threaded connections of foreign manufacturers were used, other geometrical parameters were determined by the production manufacturability. The results of the thermostatic valve steel body new design studies for two-pipe water heating systems are presented. A 3D model was built using the Solidworks design and graphics package, optimizing the geometric, mass, and strength valve characteristics. The application Solidworks Flow Simulation calculated the pressure loss in the digital 3D-model of the valve, its hydraulic characteristic was calculated. According to the numerical experiment results, a physical model of the valve group was manufactured and tested on a pouring stand. A comparison of the hydraulic characteristics of the digital and physical models was made, improvements to the design were made, and the purity of the internal surfaces was improved. A series of tests was carried out to determine the hydraulic characteristics for the regulating mechanism various values adjustment. In the heating season 2018 - 2019, full-scale tests were carried out at the operating facility with the installation of a valve and a thermal head on experimental convectors. The internal air average temperature measurements showed that the air temperatures in all the rooms with the same settings of the thermostatic head were within the acceptable limits. Therefore, the control quality of the pilot valve was adequate. The experimental thermostatic valve group was launched into small-scale production for the field tests in the buildings for various purposes.
Two-dimensional motion equations in water flow zone
Authors: Evtushenko S I , Kelekhsaev D B , Kokhanenko V N , Kondratenko A I 
Published: December 2019

Abstract
The paper studies a two-dimensional water flow from a non-pressure rectangular or round pipe placed into a wide horizontal channel. To simplify the problem, the real three-dimensional flow is modeled as a two-dimensional zone by eliminating the liquid particles’ velocities and accelerations in the direction perpendicular to the flow zone. To describe the water flow motion law, L. Euler’s equations for the ideal fluid are used, taking into account the continuity equations and the Bernoulli equation. The two-dimensional flow models in the spreading zone with the adequacy degree sufficient for practice, describe the movement of water flows arising in the lower road drainage systems races, Liman irrigation systems, small bridges, water volley channels, various culverts and water-crossing facilities. The obtained dependences of the velocity distribution, depth and water flow geometry give an accuracy exceeding that known by the previously used methods both by the velocity values and by the boundary current lines geometry.
A method for the identification of dynamic characteristics car suspension materials
Authors: Deryushev V , Zaitseva M , Megera G , Fedyanov A 
Published: December 2019

Abstract
Identification of dynamic characteristics of the machine suspension materials is required for troubleshooting and improving the ride quality. The method of identifying the suspension materials characteristics, based on the application of needle-shaped variation of the L.S. Pontryagin dynamical system to the invariant features of the dynamic system actual movement is presented in this study. The use of the needle-shaped parameters variation to the Hamilton-Ostrogradskyi action integral gives a condition of the objective functional minimum in the form of the maximum principle with the exception of the consideration of the vector of conjugate variables. As a result, the computational costs are reduced, the task of identification and optimization is simplified the convergence and accuracy of the algorithms is improved [1 - 5].
Traffic modeling
Authors: Kushchenko L E , Kushchenko S V , Baranov Y N , Dnistrenko N S 
Published: December 2019

Abstract
The transport infrastructure in the modern world is one of the most important infrastructures ensuring the life of regions and cities. Recently, in large cities, the possibilities of expanding transport networks have been exhausted. In this regard, special attention is paid to improving road safety, improving traffic management, optimal network planning and streamlining public transport routes. Solving these issues with minimal cost is possible with the help of traffic flow modeling [9].
The dynamic factor determination of the vibration mechanism with asymmetric vibrations
Authors: Gerasimov M , Vorobiov N , Romanovich M , Amini E 
Published: December 2019

Abstract
A vibration mechanism with asymmetric vibrations is discussed in the article. The mechanism consists of two stages of vibration blocks with directional vibrations. The asymmetric vibrations nature is estimated by the driving force components magnitude acting in opposite directions. The article deals with the obtaining rational parameters issue of a vibration mechanism with asymmetric vibrations, using the vibration mechanism dynamic factor. The vibration mechanism dynamic factor is numerically equal to the driving force largest component magnitude ratio to the smallest acting in the opposite direction. The work solves the following problems:
- obtaining the vibration mechanism dynamic factor maximum value with asymmetric oscillations at the driving force largest component given value;
- the conditions determination for reaching its maximum by the dynamic coefficient;
- the conditions determination for obtaining the total driving force maximum value of the vibration mechanism with asymmetric vibrations, consisting of several stages of vibrators with directional vibrations.
Special aspects of the use of “floating” cars information to estimate the quality of road traffic in real time
Authors: Topilin I , Zyryanov V , Volodina M 
Published: December 2019

Abstract
The article provides a rationale for the transition from the existing estimation methods of traffic conditions, focused on a single car-laboratory, to total "floating" cars methods of estimation at the network level. The paper presents the results of cluster and dispersion analyzes of experimental data. Based on these results it was concluded that a reliable estimation of the proportion of simultaneously stopped cars can be carried out when measuring traffic parameters with different time discreteness in the range from 1 to 180 seconds.
Multimodal transport as a mechanism for increasing the competition of long-distance passenger services
Authors: Kotenko Alexey , Malakhova Tatiana , Shchmanev Timofey 
Published: December 2019

Abstract
Multimodal transportation will not only increase the intensity of use of vehicles, but also reduce the passenger's travel time. The main task of organizing multimodal transportation is to maximally satisfy the demand of the population for transport services with the most efficient use of rolling stock. For a more effective solution to this problem, it is necessary to analyze the process of planning passenger transportation, evaluate the possibilities of marketing research in this area and conduct typifying of lines from the point of view of organizing multimodal transportation. The paper describes in detail the passenger transportation planning scheme and proposes an algorithm for assessing the effectiveness of managerial decisions. To improve the efficiency of making managerial decisions in the field of destination and cancellation of passenger trains of various categories, direct trains, trailing cars, organization of multimodal transportation, it is proposed to typify the lines with dividing them into 5 categories. Thus, the solution to the problem of maintaining the share of passenger traffic can be either the development of direct railway links, or the transition to multimodal transportation with the condition of coordinating the time of transfer.
New technology of the automated individual fuel consumption standardization for the motor vehicles
Authors: Moroz Sergey 
Published: December 2019

Abstract
A new technology of individual automated control of fuel consumption for the commercially operated motor vehicles is proposed. Thus, it allows the automatic collection of data on operating conditions, operating hours and fuel consumption of the vehicle. Moreover, this technology provides for the calculation of two packages of standards for a separate assessment of the technical condition of the vehicle and the quality of the driver’s work. Norms are unique for each motor vehicle and for each combination of the operating conditions and regimes. The new technology is going to minimize usage of motor vehicles with a high level of fuel consumption and provide an objective assessment of the driver’s quality and fuel efficiency for the commercially operated transport.
Method of complex organizational and technological designing underground structures and services
Authors: Oleynik Pavel 
Published: December 2019

Abstract
In the article it is considered a linkage of underground services construction sequence with buildings and constructions which allows imagining development model of entire underground space. For this purpose, it is proposed to divide the whole underground services into sections with their subsequent integration into homogeneous organizational and technological groups. Each of these groups has strictly defined erection sequence parameters in time schedule of facility construction. For the purpose of unification one developed organizational and technological solutions as rational schemes for above mentioned groups – schemes of temporary underground services functions replacement permanent, schemes of laying underground services under transport routes of construction site, etc.
Features of management of objects of protected areas of the Tyumen region
Authors: Bogdanova Olga , Varlamov Anatoly , Galchenko Svetlana 
Published: December 2019

Abstract
Tyumen region is a complex subject of the Russian Federation. Management of specially protected natural areas in this region has a number of features. In this article the example of legal contradiction and complexity of decision-making in cases of development of oil and gas fields and preservation of object of especially protected natural territories is considered.
The organization of transportations by container trains
Authors: Merkulina Irina , Kolesnik Georgiy , Kakhrimanova Diana , Ivanov Pavel , Saltakhanov Anzor 
Published: December 2019

Abstract
The article is devoted to the organization of transportation of container trains. The main elements of the transportation process and the main types of shipments are considered. Export railway deliveries from Russia to China began to develop relatively recently. China is actively purchasing Russian wood and wood materials, thereby raising the economic sector of the Russian Federation. The focus on the development of international rail transport is because with respect to other types of transport the railway is the most competitive. Transportation of large-sized various goods in large-capacity containers has a great prospect, both in the transport services sector and in foreign economic activity. Increasing such transportation means targeting the modernization of old rolling stock and the creation of new improved units to improve the efficiency and quality of cargo container traffic, as well as to reduce costs and shorten the delivery time for goods. To optimize both transit cargo and passenger, as well as import and export traffic, it is necessary to improve the border crossing procedure. Clearly, this issue requires discussion at the state and international levels, as well as the enormous costs of developing activities and the elimination of difficulties and time resources for the whole complex of procedures.
Study of the current state of the transport infrastructure of road and rail transport of the Russian Federation
Authors: Kurenkov Petr , Pokrovskaya Oksana , Anastasov Mark , Sokolov Mikhail , Bochkov Alexander 
Published: December 2019

Abstract
The transport system plays an important role in the conditions of dynamic development of the national economy, reliability and regularity of transport provision. The unified transport system is a combination of means of communication of conveyances, all types of transport, industrial enterprises, transport organizations, providing transportation of goods and passengers. This article describes the main advantages, disadvantages and specifics of railway transport. Currently, the majority of transport and economic land connections between the countries of Europe and Central, East and Southeast Asia to the territory of the Russian Federation, to its transport system, due to the peculiarities of the geographical position of the Russian Federation. The characteristic of the main Russian shipping companies is given. The main objects of the infrastructure of the railway industry in Russia. The main problems of the functioning of the railway industry of the Russian Federation listed. A comparative assessment of the railway transport network of Russia, USA, China and India is present. A SWOT analysis conducted to assess the strengths and weaknesses of the Russian rail and road transport.
Bridge health monitoring: the Davtashen bridge example in Yerevan
Authors: Sargsyan A N , Sargsyan G G , Sargsyan A A 
Published: December 2019

Abstract
AcceloAl system was developed by NUACA Chair of Roads and Bridges for the purpose of frequency-based bridges monitoring. The system allows measuring accelerations and determining the frequency of vibrations in real time, at four points of the bridge span simultaneously. The system provides the capability of making measurements both at the pier and the span. AcceloAl system has been used for monitoring of vibration frequency in the superstructure of Davtashen Bridge in Yerevan (Armenia). Davtashen Bridge has been chosen as a model for creating a Bridge Monitoring system for large bridges in Armenia. The results of the system usage and the analysis of measurements over the last years are presented in this paper.
Evaluation of reproduction processes and efficient operation of apartment blocks stock interrelation
Authors: Potapenko O S , Kuzovleva I A , Filippova T Ya 
Published: December 2019

Abstract
The article is dedicated to the interrelations analyzes of the reproduction processes in apartment blocks housing stock and efficiency indicators of housing operation in the region. Scientific novelty of the research is presented by the proposed system of criteria for assessing the reproduction and operation efficiency of housing, interaction modification diagram of housing stock markets and housing services.
Features of territorial organization of regional investment and construction complex in Russia
Authors: Khasheva I A , Serebryanaya D S , Serebryanaya I A , Sologub V A 
Published: December 2019

Abstract
Within the framework of the conducted comparative analysis, the features of the organization of the regional investment and construction complex were revealed; the dynamics of the construction industry was shown. Based on the in-depth analysis of the factors of formation and functioning of the investment and construction complex of the region, the question about identifying determinants of negative character was raised, the ways of improvement were offered.
Application of the engineering forecasting method in managing the competitiveness of a construction company
Authors: Pesotskaya E V , Selyutina L G , Egorova O A 
Published: December 2019

Abstract
The article discusses one of the pressing problems of managing a construction organization as a subject of the investment and construction market, focused on introducing new technologies and materials - the need to improve methods for assessing its competitiveness and making management decisions to ensure, maintain and develop the competitiveness in strategic and tactical periods. An algorithm for assessing the competitiveness of a construction organization based on the integration of particular indicators characterizing competitiveness, taking into account the significance and intensity of their determining effect is presented. The algorithm is formed on the basis of an engineering forecasting methodology intended for solving comparison and multi-criteria tasks. The necessity and possibility of using an expert method in assessing the competitiveness of a construction organization, requirements for the procedure for its application, as well as a methodical approach to the implementation of monitoring of the competitive environment of the investment and construction market are revealed.
The construction materials actual cost accounting issues in terms of the estimated and regulatory framework reforming
Authors: Golikova U A , Voronova S P , Narkevskaya T V , Shaikina L K 
Published: December 2019

Abstract
Some problems in the materials actual cost accounting caused by the operating methodological and regulatory framework imperfection and discrepancy in the conditions of pricing system reforming and budget rationing in construction are considered in this article. These problems’ influence on the receipt accounting processes and the construction materials use is discussed.
Informational platform of the digital accounting
Authors: Shumeyko M V , Sagamonova G V , Sagamonova E V 
Published: December 2019

Abstract
The article discusses the background and the need for transition to digital technologies in the economy at the global, macro, meso and micro levels. The necessary and sufficient conditions for creating a microeconomic platform for digital accounting are analyzed. The complex of problems of their creation and the ways of their solution are investigated.
Development of protective measures providing environmental safety in areas affected by water-intake constructions of urban households
Authors: Bondarenko V L , Khetsuriani E.D. , Ilyasov A.I. , Semenova E.A. 
Published: December 2019

Abstract
The article represents the results of integrated studies of development of protective measures providing environmental safety in areas affected by water-intake technological complexes as a technological component of specified type of natural-technical systems (NTS) ‘natural aqueous medium – water intake technological complex – multiple-use water supply system’ (NAS-WITC-MUSS) concerned with a stable residential water supply of urban households.
Calculation of an electrochemical reactor for cleaning the air of the city from hydrogen sulfide emissions
Authors: Golovanchikov A. , Churikova V. , Fomichev V. 
Published: December 2019

Abstract
The environmental safety of the urban economy requires the creation of new environmentally friendly technologies that ensure human protection from the negative impact of water management systems, in particular the urban sewer system, which is a potentially dangerous source of decomposition products of biological waste. Hydrogen sulfide is a gas that has a significant danger for both the city population and the high corrosivity of metal and concrete structures. At the Department of General and Applied Chemistry (VSTU), we developed an electrochemical method for purifying air from hydrogen sulfide, which allows to neutralize it locally, in the zone of hydrogen sulfide emission, with the release of environmentally friendly products: chemically pure sulfur and water.