bluuebunny/crossref_metadata_2025 huggingface dataset:
Airplane positioning using airborne collision avoidance system data
Authors: Kharchenko Volodymur , Ostroumov Ivan , Kuzmenko Nataliia , Larionov Arkadiy
Published: May 2020

Mid-air collision is an important problem of modern air transport system. Development of Airborne Collision Avoidance System (ACAS) is grounded on safety criteria in order to support air traffic capacity and equipment. In research, we study the possibility and performance of airplane positioning by data accumulated in ACAS. ACAS surveillance equipment supports accurate range and poor angular measurements of airspace user’s data. An approach is based on a fusion of surveillance data with airplanes locations obtained from decoded Automatic Depended Surveillance-Broadcast messages. Performance of positioning approach is considered in more detail. An error of positioning in the horizontal plane is estimated in relation with uncertainty of airspace users’ location. Numerical demonstration with a live air traffic data indicates poor positioning accuracy in comparison with primary positioning system on-board of airplane and accuracy dependence from geometry and capacity of air traffic.
Space-planning development of high-rise dominating structures in the historical center (case study of St. Petersburg)
Authors: Zolotareva Milena
Published: May 2020

The article addresses the evolution of layout and spatial design development regarding high-rise zoning in the central part of St. Petersburg. The skyline has always played an important role in the spatial composition of St. Petersburg. Study objective of the study is to analyze the evolution of the spatial and spatial structure and high-altitude zoning in the historical part of St. Petersburg in the end of the 19th – beginning of the 20th century. A study of the sustainable development of the historical urban environment is of undoubted interest from the point of view of identifying promising approaches to the implementation of planning, architectural and construction measures for for modern construction in the historical city. The study is based on cartographic, literary end field methods. St. Petersburg is a unity of space-planning structures that were shaped during the 18th–19th centuries. Moreover, every subsequent urban-planning concept of city development acted both to develop the city and to connect the concepts to each other. Therefore, regularities in the development of the system of high-rise dominating structures in St. Petersburg shall be analyzed with account for the historical stages of the layout shaping of its urban environment. Analysis of examples of new construction at the beginning of the 19th – beginning of the 20th century in the center of St. Petersburg allows you to capture a change in the urban landscape. The practice of active transformation of the city center was accompanied by changes with regard to the height range and scale, and, sometimes, replacement of the existing spatial structure and high-rise zoning.
The problem of urban design universals: modeling and planning of ensemble spaces
Authors: Norenkov Sergey , Krasheninnikova Evgenia
Published: May 2020

The purpose of the article is to pose the problem of the universals of urban design and show schematic features of its solution in modeling and planning ensemble spaces of modern cities. An integral, correlatively universal model of urban design is yet to be created in the paradigm of sustainable development of “smart garden-cities” - as opposed to stochastic random development processes of urban territories following some quick-fix projects. Deductive and inductive methods are proposed as a basis. The general methodology is developed in the spectrum of transitions from generalized vision in the logic of universals, to particulars, revealing in the specifics of the unique. In a city that lives its own life, as a kind of faceted, multisided “Philosopher’s stone”, the universals are present everywhere and realized in the consistency of each and every element. Urban ensemble spaces that organically link the unique expressiveness of every historical chronotope gain their own algorithms in the process of urban design, supported by modeling and planning. The main results relating to the productivity in application of the universals as criteria for the estimation of architectural urban design were obtained in the design activities of the LLC “SynARChiya” and in the educational process in Nizhny Novgorod State University of Architecture and Civil Engineering.
Urban planning objects of protection as a component of the system of protection of the world heritage object
Authors: Mikhailov Aleksei
Published: May 2020

The paper is devoted to research of scientific and methodological approaches to the definition of urban planning objects of protection. Attention is paid to individual objects of cultural heritage and the totality of such objects united in ensembles, as well as a significant area and complexity of the world cultural heritage site “Historical center of Saint-Petersburg and related groups of monuments”. Typical examples are considered: Kirov Department Store and factory-kitchen, G. F. Voldt’s Summer house, Estate of E. I. Lopukhina (Levashovy’s, Vyazemski’s) “Aspen Grove”.
Developmental peculiarities of nobles’ estates on the territories of distant uyezds in St. Petersburg province
Authors: Shuvaeva Evgenia
Published: May 2020

The research is devoted to studying the prerequisites for occurrence, development peculiarities and the distinctive characteristics of nobles’ estates located in the territories of distant uyezds of the St. Petersburg province. Such presentable estates have a number of characteristics that are distinctive from ordinary noble estates. The following are considered as examples: Rapti estate in Luzhskii, Kotly estate in Yamburgskii, Volyshovo estate in Gdovskii, Pokrovskoe estate in Novoladozhskii districts. The studies of previous years affecting the manor housing of the Leningrad Region are analyzed in order to determine the knowledge level on the topic.
Destabilizing factors of urban renovation
Authors: Topchiy Dmitriy , Kochurina Ekaterina , Ekba Sergey
Published: May 2020

To optimize the organizational and technological model of construction of buildings and structures in a dense urban environment, it is necessary to take into account the factors that have a destabilizing effect on the process of construction and installation works, and arising from the very definition of " constrained urban development", which involves getting near buildings, structures and linearly extended objects in the zone of influence of new construction or reconstruction. This article highlights a number of destabilizing factors that most strongly affect the time and economic costs that must be considered when developing a construction project.
Characteristics and problems of the standardization of urban design in the development of urban underground space
Authors: Belyaev Valery
Published: May 2020

The current situation and national features of technical regulation (standardization) of preparation of planning solutions for the development of urban underground space are considered. The article describes the history of the issue and examines the wording of the draft Code of rules "buildings, structures and complexes underground. Rules of town-planning design". The purpose of the analysis was to assess the effectiveness of the draft Code of rules, identifying the problems of standardization at the planning level. The analysis was carried out in conjunction with the directions of improving legal regulation. It is concluded that before the removal of legal barriers, the approval of the draft Code of rules is premature. The results of the analytical stage showed the presence of system defects of standardization for this urban level and identified their causes. On this basis, General proposals for the elimination of such defects are given and the specifics of finalizing the draft Code of rules are proposed. These recommendations can be useful for the developer, the state customer, the executor of the draft Code of rules, as well as for representatives of the expert community.
Architectural and constructive concept of the historical residential development of St. Petersburg in the XVIII-early XX centuries
Authors: Golovina Svetlana
Published: May 2020

The most important stages of the formation of residential development are considered, the spatial and structural features of the construction of historical residential development of St. Petersburg in each period are identified. The organization of private plots, functional and spatial characteristics and design solutions of residential buildings are described. The typology of residential planning systems used at that time was clarified, design options and variants for using building materials in difficult geological conditions and taking into account the peculiarities of the local microclimate are shown. These characteristics are considered by the general system and are the basis for a comprehensive renovation of historical buildings in St. Petersburg.
First building engineers in architectural practice of St. Petersburg at the beginning of the 19th century
Authors: Vozniak Ekaterina , Golovina Svetlana , Kolesova Maria
Published: May 2020

The emergence of the specialty of civil engineer in the first half of the 19th century had a significant impact on architectural practice in St. Petersburg. The differentiation of the professions of engineer and architect took place for the first time; both specialists began to participate in the design. The appearance of such engineers as Augustine Betancourt, Matvey Clark, Pierre-Dominique Bazin and Wilhelm von Tretter brought about changes in all areas of architecture and construction. New building structures and materials appeared, as well as methods for checking and calculating. Designing has become comprehensive, the activities of the Committee for Structures and Hydraulic Works led by Betancourt covered urban development, individual buildings and all types of utilities. The formation of engineering education took place, which brought up the next generation of Russian engineers.The article considers the most important aspects of the activities of Augustine Betancourt, who laid the foundations for engineering education in Russia; Matvey Clark, who created the first metal beams and trusses; Pierre Dominique Bazin, who continued the development of engineering education, as well as Wilhelm von Tretter, one of the founders of iron bridge construction in Russia.
Role of Leningrad architects in last-recovery repair of center of Sevastopol and problem of preserving their heritage
Authors: Vasiliev Nikolay , Ovsyannikova Elena
Published: May 2020

Destroyed in Sevastopol in 1945, it was restored by architects from Leningrad engineering organizations: Centroamerica, Langosteira and Logoinstant, as well as architects from Moscow and other Russian cities. The purpose of the study: to show the influence of representatives of the Leningrad architectural school on the formation of the post-war image of Sevastopol. Methods: publication of historical data not previously entered into scientific circulation, based on the materials Of the state archive of Sevastopol. Results: archival materials about the work of Leningrad architects in Sevastopol were identified, and their implemented projects were reviewed.
Architecture of modern coastal development. Saint Petersburg realias and experience of Amsterdam, Rotterdam and Hamburg
Authors: Perov Fedor , Lavrov Leonid , Eremeeva Aleksandra
Published: May 2020

Results of the first stage of territory development in the Gulf of Finland near the western coast of Vasilyevsky Island in Saint Petersburg are rated unsatisfactory. Results in the field of aesthetics, ecology, social stability and functional arrangement of the urban environment on new lands are negative. According to the analysis of experience in coastal areas' reconstruction in Amsterdam, Rotterdam and Hamburg, ambitious goals that were set for the project in Saint Petersburg were not achieved due to defects of the urban planning system — there was no centralized project management, activities of contractors, who neglected exclusive potential of the coastal area and its proximity to the historical core of the city, were insufficiently coordinated and controlled. It is argued that this is due to inertia of the Saint Petersburg design and construction system. During many years, it was focused on large-scale residential development of vast peripheral territories and, therefore, it was not capable to resolve issues related to development of highly urbanized environment in the city center. Omissions made during construction of a highway through the residential area are identified. The highway design does not provide reliable protection against negative impact on residential quarters. The route of the highway was designed as a bypass of the city center, but it became the shortest route to the center. It is noted that further development will offer opportunities for partial correction of the errors made. The new management team of the city architectural services considers the territory perspective for expansion of the Saint Petersburg center towards the water area of the Gulf of Finland.
Features of the formation of highest nobility estates in the neighboring districts of the St. Petersburg province
Authors: Kozyreva Ekaterina
Published: May 2020

The paper is devoted to studies of the location until 1917 in the neighboring districts (Peterhof, Tsarskoye Selo, Shlisselburg and St. Petersburg) of St. Petersburg province of large, representative and prestigious suburban estates - "estates of the highest nobility". Such representative estates received special material and intangible characteristics that distinguish them from "ordinary" estates. Typical examples are considered: Grevov's estate in Koporye, Shuvalovs' estate (of Vorontsova-Dashkova E.A.) "Pargolovo", Belogorka estate, Irinovka estate. The relevance of the work is caused by the fact that an active search for ways to adjust estates is currently underway. To carry out these works, it is necessary to understand the unique features of adjustment objects. In the European and domestic practice of adjustment of objects, special attention is paid to estates belonging to the upper strata of society (in pre-revolutionary Russia, to the nobility). The purpose of the study is to identify a separate type of object "near estates of the highest nobility". Results preserved and existed earlier estates of the highest nobility are analyzed. The regularities of the formation of features and characteristics are revealed, which allows distinguishing them into a separate type of objects - "near estates of the highest nobility".
Competitiveness of seafood enterprises: the case study of Ba-Ria-Vung-Tau province, Vietnam
Authors: Tran Aí Huu
Published: May 2020

This study aims to identify and measure the impact on the Competitive capability of frozen seafood processing enterprises in BR-VT province. Research access tocompetitiveness is based on competency theory, different from previous domestic studies primarily approaching competitiveness based on traditional competition theory and value chain theory. The research model consists of 9 factors. The study was conducted with 356 survey samples of 76 frozen seafood processing enterprises, surveyed through a questionnaire.Data analysis through SPSS 24.0. The test results have 8 accepted hypothesis, the highest impact factor is the ability to access and innovate technology with β = 0.3328 (p = 0.000) and the lowest is local infrastructure factorwith β = 0.067 (p = 0.042), and Policy and Legal Factor with β = - 0.038 (p = 0.249), there is not statistical significance should not be accepted.
Model of optimization of materials and equipment for machinery fleet when servicing objects of reclamation systems
Authors: Apatenko Aleksey , Sevryugina Nadezhda
Published: May 2020

Factors defining business adaptability to economic changes were identified. Creation of service clusters will provide the balance of interests for all agencies using technological machines and increase their performance. The result of the study is a solution of the optimization task aimed at determining the criteria of economic activities of a network of enterprises that service objects of amelioration with the use of various equipment. This solution enables regulating the level of materials and equipment taking into account the expected demand for repair stock and expected minimization of transportation costs for distributing stocks with estimate of the function of flow rates accounting. The system of distributing dead stocks of materials and equipment is proposed. The authors elaborated the economic-and-mathematical model for storage costs optimization when warehousing and selling unused materials and equipment. Results of testing the distribution scheme for dead stock of materials and equipment belonging to Stroytekhnika company, who is a supplier of consumables, fuel and lubricants, as well as spare parts for reclamation and road construction machinery.
Biosynthesis lipase from the fungusPenicillium hordeiisolated from waste fat
Authors: Beliaev Daniil , Pushkarev Mikhail , Kozlov Grigorii , Ryabinin Igor , Mishin Alexander
Published: May 2020

The article provides a method of isolating a lipase producer and identification methods by classical methods in microbiology of an isolated micromycete producing lipase. The species affiliation ofPenicillium hordeihas been determined. The temperature of micromycete cultivation was studied, as well as the dynamics ofPenicillium hordeilipase biosynthesis. Screening plans were also carried out (Plackett-Berman Plan), then optimization according to the steep climb plan and an experiment based on the plan of a full-factor experiment (three-level CFE) was also conducted to determine the optimal concentrations that are significant for lipase biosynthesis of components. A mathematical model is constructed that describes the relationship between the influence of two significant factors on the volumetric activity ofP. Hordeiculture fluid. The most optimal composition for the culture fluid for lipase biosynthesis,Penicillium hordeimicromycete, was compiled.
Incorrect application of the epicycloid equation to the planetary mechanism of the cotton harvester
Authors: Turanov Khabibulla , Shaumarova Mukhaya
Published: May 2020

The content of the paper is based on the mathematical construction of the parametric equation of the epi- and hypocycloid curve described by a circle point. The purpose of the paper is to present the equations of epi- and hypocycloids in a parametric form in relation to the epi- and hypocyclic mechanism in a form convenient for calculation; to present the results of computational experiments on constructing phase trajectories of motion of a moving point of an epi- and hypocycloid. A detailed analysis of the analytical model of epi- and hypocycloids circumscribed by a point of a circle (on a moving circle) has been made. The equations of epi- and hypocycloids are presented in parametric form as applied to the epi- and hypocyclic mechanism in a form convenient for calculation. The results of studies on the construction of phase trajectories of a moving point of an epi- and hypocycloid with an analysis of the obtained curves are presented. The analytical model of epi- and hypocycloids is of practical importance, since it allows designing geared linkage mechanisms formed by attaching two-wire Assur group of various modifications to the planetary mechanism, as the primary mechanism.
Development of e-commerce, transport and logistics in rural Russia: attitudes and obstacles
Authors: Aleksandrov Igor , Fedorova Marina
Published: May 2020

The objective of the paper is to research the attitudes of local people of the countryside of one Karelian typical village towards the development of e-commerce and remote work. E-commerce and remote work are seem to be a solution for local people to find new jobs and earn more or some extra money. Moreover, abovementioned can be the way to find new markets for selling some good, products and even “not-importables”, which are seen to be the must to be created to revitalise the economic system of rural areas. Except the lack of knowledge on the the theme, the main obstacles for e-commerse are bad roads and bad Internet connections. The delivery and logistics system should be revised.
Industrialization of housing construction as a tool for sustainable settlement and rural areas development
Authors: Popova Olga , Antufieva Polina , Grebenshchikov Vladimir , Balmashnova Mariya
Published: May 2020

The development of the construction industry, conducting construction in accordance with standard projects, and transforming the construction materials industry in hard-to-reach and sparsely populated areas will make significant progress in solving the housing problem. Industrialization of housing construction is a catalyst for strong growth of the region’s economy and the quality of life of citizens. The purpose of this study is to develop a methodology for assessing the level of industrialization of the territory’s construction complex and its development potential for increasing the volume of low-rise housing stock. Research tasks: 1) assessment of the need to develop housing construction, including low-rise housing, on a particular territory; 2) development of a methodology for calculating the level of industrialization of construction in the area under consideration to determine the possibility of developing low-rise housing construction in this area in the proposed way; 3) approbation of the method using the example of rural areas of the Arkhangelsk region. It was revealed that the districts of the Arkhangelsk region have medium and low levels of industrialization. The districts that are most in need of an increase in the rate of housing construction have been identified. Recommendations for the development of the construction industry in certain areas have been developed.
3D Modelling in solution of cadastral and geodetic tasks
Authors: Demidova Polina , Kolesnik Olga , Al Fatin Hasan
Published: May 2020

The main purpose of this study is demonstrating possibilities of using 3D modelling in solving scientific and practical problems et the field of geodesy and cadastre. Increasing number of publications on this topic among Russian and foreign authors are shown. The article considers examples of creating three-dimensional models for the purposes of cadastre and geodesy. A 3D model of cadastral registration of a complex object (gas station) in the specialized software ArchiCad together with Google Earth is presented. The composition of each stage and data set of each “step” of cadastral works in relation to such objects in Russian Federation are proposed. The article considers shortcomings of legal regulation in relation to 3D cadastre at the present stage. In addition, three-dimensional models of the Dukan reservoir (Iraq), showing water levels at different times, were modelled. They based on digital data obtained from the digitized contour map. And it were used such software products like GlobalMapper, ArcMap and ArcScene. After analyzing the regulatory sources, conclusions about the lack of legal regulation in relation to the 3D cadastre in the Russian Federation were made.
Conflicts in the land use in mountainous territories
Authors: Ivanov Zaur , Gurtuev Alim , Kunasheva Zara , Khocheva Zukhra
Published: May 2020

The purpose of the study is to determine the causes of conflicts in the land use in land-hungry regions and to develop optimal solutions in land disputes. The research is based on the field data, collected in land- hungry regions of Russian Caucasus and historical data for same regions. We analyze the data acquired and use the system approach for developing a classification for studied conflicts. It supports the thesis that the agricultural land ownership is critical for the development of a stable regional system of agricultural production. In the majority of Russian regions land reform has been already carried out. Thus, market mechanisms for the functioning and realization of the right to use and possession of agricultural land are in effect. But in North Caucasus republics, institutionalization of land ownership is still vague. As a result, the number of disputes and conflicts in land use is growing. In the article, we carried out a classification of conflicts in land use and the analysis of land conflicts in the republics of the North Caucasus.
Geoecological evaluation of the territory in the GIS environment in the preparation of information for land management design
Authors: Osipov Aleksey , Bogdanov Vladimir , Garmanov Vitaly , Pavlova Viktoriia , Uvarova Ekaterina , Layshev Kasim , Nikonorov Aleksandr , Akimov Luka
Published: May 2020

This study focuses on improving the technology for the preparation of geospatial information for land management design. The following hypothesis was the basis of the study: if the technology of geoecological assessment of the territory in the GIS environment is developed in the preparation of information for land management design, then its quality will increase, and as a result, the effectiveness of managerial decisions in the field of environmentally friendly land use will increase as well. The geoecological assessment of the territory is understood as the mathematical-cartographic, spatial, multi-parameter analysis of the auspiciousness of its agro-resource and geoecological conditions for sustainable production of plant agricultural products without disrupting the functions of life support (environmental and resource production). The developed technology can be used to solve the following problems: a) improving the land management system; b) improving control of land management; c) the formation of a database on the suitability of the territory for agricultural development, taking into account its sustainability; d) the territorial distribution of agricultural loads based on the geoecological situation. The advantage of the technology developed by the authors lies in the fact that a really working mechanism of geoecological assessment of the territory in the GIS environment is created when preparing information for land management design, which will allow to improve the quality of the developed design solutions and as a result will ensure the environmental safety of the functioning of natural and agricultural systems and the careful use of land resources.
Process of forming a regional recreation system in the conditions of a border region
Authors: Vasilieva Anastasia , Belaya Raisa
Published: May 2020

Significant heterogeneity of the level of development of the Russian border, including in the field of recreation, imposes requirements for differentiation in the regional policy. Definition of the types of territories helps to solve applied management tasks more effectively. In this context, the factors by which these types were formed are important. To solve this problem, the authors conducted a factor analysis through the principal component method using oblique factor rotation. Three blocks of variables were analyzed that characterize the subjects of the Russian Federation that have land borders on the mainland (including river and lake borders) and sea borders with neighboring countries located on the map clockwise from Norway to the United States (border regions of Russia) for the period from 2010 to 2018. As a result, five factors were identified: the factor of the demand for the services of the recreational system, the factor of the development of the infrastructure of the recreational system in climatic conditions, the environmental safety factor, the factor of investment in the development of the recreational system infrastructure, the factor of the location at the border. The results of the study can be used as a practical tool for developing recommendations in the field of regional policy aimed at development of a recreational system, taking into account the factors determined for each identified group. The results of the study were obtained in the framework of the state task of the IE KarRC RAS on the topic “Institutions and social inequality in the face of global challenges and regional restrictions”.
Arrangement and safe operation of auto-roads on a construction site
Authors: Doroshin Ivan , Zhadanovskiy Boris , Kazaryan Ruben
Published: May 2020

Traditional and innovative ways of constructing temporary roads at a construction site are considered. The basic principles of the preparation of construction operations are given, which should be taken into account at this stage. Particular attention is paid to the preparation of the construction of the facility and preparation for the construction and installation works. The organization of designing construction roads, temporary and permanent, is considered. Methods for determining the parameters of construction roads are described. The main technical indicators of construction roads are given. Dangerous areas of the roads are indicated. The main purpose of the research is to generalize and systematize the modern ways of arrangement and operation of auto-roads on a construction site. For carrying out of the study the methodical and scientific literature on the subject was analyzed, and also the statistic methods of data investigation were used. The main results of the research is the accomplishment of estimation of expenses on arrangement of auto-roads, the indication of order of working out of design of the auto-roads, also the indication of necessity of use of permanent roads as temporary. The design of temporary and permanent construction roads is very important because of their greater use in comparison with railway transport and a great influence on the supply of construction materials.
Qualitative analysis of safety factors of organizational and technological decisions made at the stage of development of project documentation
Authors: Lapidus Azariy , Sinenko Sergey , Shesterikova Yana
Published: May 2020

Many factors influence what organizational and technological decisions will be made to ensure the safety of buildings and structures. The authors considered factors reflecting their full characteristics. Based on the regulatory documentation used in the design of buildings and structures for the section of design documentation “Structural and space-planning decisions”, the types of safety that are influenced by the design decisions are determined, factors for each type of safety are determined, and safety factors are ranked by importance.
Development of building exploitation programs in the concept of energy-sustainable urban development
Authors: Dement'eva Marina
Published: May 2020

In the life of every major metropolis, there comes a time when it is impossible to reach new levels of development without the use of innovative technologies. They are necessary to optimize ongoing processes in the urban environment and ensure energy-sustainable urban development. The purpose of the study was to develop a model of an exploitation program designed to monitor and ensure the safe and energy efficient exploitation of buildings and assess the quality of work of managing organizations. The relevance of the study is justified, on the one hand, by the lack of a unified system of planning and quality control of building management, and, on the other hand, by the need to use information technologies as part of the Digital Economy of the Russian Federation program for successful planning of a sustainable urban environment. The object of research was the process of technical operation of buildings. The subject of the study was the study of the principles of the formation of building maintenance programs based on information technologies taking into account energy efficiency requirements. One of the significant results of the study is the developed algorithm for the formation of a building maintenance program for deciding on corrective maintenance measures. Criteria are proposed for assessing the quality of managing the safety and comfort of a building, which can be taken into account when developing voluntary national standards in the field of "green" construction.
Application of organizational and technological modeling approaches in the construction of buildings with green roofs
Authors: Korol Elena , Shushunova Natalia
Published: May 2020

The predominance of green spaces on the coatings of buildings and structures contributes to the formation and development of a new urban space, improves the environment, reducing greenhouse gas emissions into the atmosphere. The aim of the research is to study the various types of greening systems form a variable base of organizational and technological modelling, which allow to adopt the rational organizational and technological decisions in the construction. The research methodology and research methods are based on the theory and practice of constructing organizational and technological models and methods of rational planning in construction, decision theory, expert assessments, and comparison methods. As the results of streamlining the technological processes and operations of the roofing device with modular greening systems, the organizational and technological sequence of the roofing device with the modular greening system is formed. Application of the approaches of organizational-technological modeling in the construction of buildings with green roofs will allow verification with a limited set of experimental data.
Criterion of stability of hydraulic cylinder and method of increasing its reliability under longitudinal-transverse loads
Authors: Kobzov Dmitriy , Repin Sergei , Gubanov Vladimir
Published: May 2020

Currently, in most cases, the study of the operability of hydraulic cylinders in terms of their bearing capacity is carried out by means of assessing the longitudinal stability of a compressed rod with the variable cross section. In this case, the inclination of the rod in space is not taken into account. However, during operation, as a rule, a hydraulic cylinder inclined in space due to longitudinal-transverse loading is deformed in the vertical longitudinal plane with the appearance of a full-scale deflection. So, the limit value of the longitudinal compressive force is less than the limit compressive force of a stable rod, which implies that a rod having an initial curvature is more susceptible to bending, appearance of residual deformations in its elements and has less reliability than a straight, vertically arranged one. As the guide elements of the hydraulic cylinder wear out, its total deformation increases, which leads to an increase in longitudinal-transverse loads. With regard to long-stroke hydraulic cylinders, a special danger is their immediate stop in space when the working equipment of the machine meets an insurmountable obstacle. The purpose of the study is a scientifically based description of the areas of functioning of the hydraulic cylinder in the conditions of longitudinal-transverse bending or stability, as well as the boundaries separating them
Application of 4D BIM modelling in planning and construction of zero cycle works
Authors: Konyushkov Vladimir , Sotnikov Sergey , Veretennikov Vladislav , Ershov Ivan
Published: May 2020

4D BIM modeling is a unique and effective management technology in construction projects. However, it is not widely used in geotechnical construction. This paper summarizes main aspects that characterize the essence of this new technology. An extensive literature review and analysis of ‘pilot’ projects were conducted. The main 4D modeling tools are presented. As a result of the study of ongoing projects, a calculation of the economic efficiency by implementation of this technology was made. The use of this method in planning and construction can increase the main criteria for assessing the success and effectiveness of zero-cycle work.
Geodetic monitoring of deflections of reinforced beams and reinforcing elements under variable static loading
Authors: Rubtsov Igor , Rubtsov Oleg
Published: May 2020

In the framework of the present study was carried out monitoring of reinforced concrete structures subjected to reinforcement. As reinforcement elements, steel channels were used, rigidly connected to a reinforced concrete beam to be reinforced. Object of research: systems of quasi-continuous observations of the parameters of the construction object carried out on the basis of the monitoring system. Subject of research: identification of the possibility of using various systems, in particular, geodetic and strain gauge monitoring, to monitor the bending of reinforced concrete elements and, in particular, reinforced concrete beams. Aim: Comparative analysis of strain gauge and geodetic monitoring in the process of fixed changes in static loads on structural elements. Materials and methods: the initial materials for this study were the results of geodesic and strain gauge monitoring during statistical step-by-step loading of reinforced concrete beam by steel channels. Results: on the basis of the obtained dependences of the deflection of elements of reinforced and reinforcing structures in time during their step-by-step statistical loading the possibility of using geodetic control is shown. Conclusions: The possibility of using geodesic and strain gauge methods for monitoring reinforced concrete structures is proved.
Selection model of work technology based on multi–criteria evaluations
Authors: Barkalov Sergey , Kurochka Pavel , Khodunov Anton , Kalinina Natalia
Published: May 2020

A model for the selection of options for the production of work in a construction project is considered, when each option is characterized by a set of criteria. The number of analyzed options is being reduced based on the construction of the Pareto-optimal solution set. The remaining options are used to solve the problem based on the network model,\ in which the solution will be a subcritical path that meets budgetary constraints. At the same time, the proposed comprehensive indicator characterizing the preferences of the customer makes it possible to determine alternative options for performing work in the energy project in such a way that the amount of costs allocated to implement the set of work under consideration is minimal. Another statement of the problem is also considered when it is necessary to determine a strategy for the implementation of an energy project that, given a planned budget constraint, maximizes the growth of a comprehensive indicator that characterizes customer preferences in this project. The solution of the tasks is given under the assumption of the convexity of the cost function.
Organizational, technical and economic fundamentals of waste management and monitoring
Authors: Velichko Evgeniy , Tshovrebov Edward , Niyazgulov Ural
Published: May 2020

The article deals with issues of monitoring, planning, organizational and technical support, economic regulation and improving the efficiency of the infrastructure for processing, recycling and disposal of waste, resource conservation and management of secondary resources, their use as secondary raw materials for production, services, work and power generation. The Russian Federation has significant potential for economic growth due to the efficient use of secondary resources from billions of tons of generated production and consumption waste annually. These ecologically unsafe anthropogenic objects can be characterized as a source of valuable renewable raw materials, material and fuel and energy resources. However, the scale and level of use of various types of secondary resources are characterized by considerable unevenness and depend on the demand for secondary raw materials, the resource value of the waste, the environmental situation arising from treating them as environmental polluters, on the real economic conditions that determine the profitability of each specific type. economic activities that use secondary resources for the manufacture of products, works, services, energy production. The methods of monitoring the industry for the treatment, disposal and disposal of waste are: information-analytical, information-statistical, sociological, geo-information. The legal status of the monitoring system of the industry for the treatment, disposal and disposal of waste is determined by the limitations of its functionality within the framework of the goals and objectives facing it.
Integration of the supply system in design
Authors: Akristiniy Vera
Published: May 2020

The article discusses ways to obtain positive effects when integrating the supply system into the design during the implementation and completion of the investment-construction project. The use of the principles of centralization and decentralization with the distribution of the main functions of the parent and subsidiary construction organizations is proposed. The improving mechanism for the material and technical supply system is consolidated according to principles of planning, organization, and control. The stages of a supply system integration into the building design are proposed during the implementation of the investment- construction project. The proposed mechanism allows you to plan the work of the supply system during the construction period, reduce the time frame for the implementation of the investment-construction project and obtain savings in financial resources.
Special issues of IFRS application in Russian organizations
Authors: Melekhina Tatiana , Sedova Elena , Karpova Irina
Published: May 2020

In modern conditions, Russian accounting is increasingly oriented to international standards. Accounting for leasing relations is also subject to changes that are associated with the transition of Russian accounting to international financial reporting standards (IFRS). In 2016, a new standard was approved for accounting for leases in public sector organizations - the SPS “Leases” (entered into force on January 1, 2018). For other organizations, on October 16, 2018, FAS 25 “Lease accounting” was approved. This standard introduces the type of asset - the right to lease, which represents a new format for accounting methodological documents. The purpose of the study is to consider the features of the application of FAS 25 “Lease accounting” based on the new IFRS 16 “Leases” in accounting for operating leases of Russian organizations. The authors consider the lease relations of economic entities of the Russian economy using the example of pharmacy organizations, in particular, the main aspects of FAS 25, the procedure for accounting for operating leases from the perspective of a lessee and lessor, features of accounting for sublease, leaseback, lease on special terms, as well as disclosure of lease information in accounting (financial) statements. The methodological basis of the study consisted of elements of the accounting method (system of accounts, double entry book-keeping, reporting) and tools of economic analysis (method of comparison, absolute and relative values, tabular and graphical representations of data, coefficient method). As a result of the study, an operating lease accounting mechanism was proposed, which reflects the specifics of pharmacy organizations.
Increasing the efficiency of land use in real property complexes development projects
Authors: Nosov Sergey , Bondarev Boris , Venevtsev Evgeny , Svintsova Tatiana , Eroshkin Sergey
Published: May 2020

The relationship between the development of the city ’s transport infrastructure and urban land use is a pressing problem in the territory development of any metropolis. Addressing this challenge requires the creation of new tools and mechanisms. Transport infrastructure is the main component of the entire infrastructure of any city, affecting the social, economic and environmental efficiency of urban land use. Therefore, the authors, choosing transport infrastructure as the object of the research, analyze the patterns that arise during its development on the conditions of the entire urban land use. Methods such as calculation-graphical, analysis and synthesis, abstraction method, etc., are used. The authors analyze management methods of urban transport systems as part of real property complexes. The ecological and economic justification of development projects for the real property complex is proposed as a tool for determining perspective directions and mechanisms for increasing the efficiency of land use.
Environmental awareness and development of the financial market
Authors: Semenkova Elena , Andrianova Ludmila
Published: May 2020

The relevance of the paper is caused by the need to find new channels to attract public funds to the domestic stock market. It is known that the population of Russia invests in securities no more than 5% of their savings. The study of the pro-environmental behavior of investors in the Russian stock market seems to be very relevant and useful in line with the policy of the Bank of Russia in the financial market. In the “Guidelines for the Development of the Russian Financial Market in 2019 – 2021”, it was noted that the rapid development of financial technologies, changing consumer demands, the growing cross-border nature of financial services, new approaches to regulation in the world create additional opportunities for the development of the domestic stock market [1]. The subject of the study is the pro-environmental awareness of investors in the stock market, which results in the formation of a new investment quality of green bonds. The aim of the study is to identify the factors and conditions of pro-environmental behavior of investors in the Russian stock market, ensuring the development of green financing mechanisms. Methodology. To study the pro-environmental behavior of investors in the Russian stock market, the main factors that influence the pro-environmental behavior of investors in the Russian stock market and the practice of disclosing non-financial statements by issuers of green bonds in the stock market are systematized. In substantiating the findings, comparative, economic and statistical methods of analysis were used.
Impact of meaningful work on elderly people’s intention to continue working after retirement: A Vietnamese study
Authors: Doan Thi Mai Huong , Pham Huong Quynh , Tran Thi Mai Phuong
Published: May 2020

The study focuses on examining the relationship between meaningful work and elderly people’s intention to work after retirement. Based on the previous research, we examined the impact level of the three aspects of meaningful work, which are positive meaning, meaning making through work and greater good motivations. The analysis of a sample of 784 workers aged 40 and above showed that all three aspects considered have a positive effect on the intention to participate in the workforce after retirement. In particular, positive meaning has the strongest impact on the workers’ intention. The results of the current study extend previous research on factors affecting workers’ intention to continue working after retirement. The implications of these findings are discussed in the practical aspect of those involved in the development of effective human resource management policies to retain older workers.
Investment in human capital as the basis for the country’s economic growth
Authors: Nezhnikova Ekaterina
Published: May 2020

A key factor in modern economic growth is investment in people and in the development of human capital, as evidenced by the experience of many countries. Investments in human capital create conditions for sustainable economic growth, constant adaptation of the socio-economic structure to new areas of scientific and technological progress. In addition, investments in people form demand in many adjacent sectors, thereby causing a significant multiplier effect. Currently, the role of the state in this area is quite large. The role of the state is especially great in the most important spheres of the formation of human capital - in the field of education, health care and the allocation of research.