bluuebunny/crossref_metadata_2025 huggingface dataset:
The idea of pedestrian pockets as a key for successful transit-oriented development for Najaf city-Republic of Iraq
Authors: Al-Jaberi A A , Al-Khafaji A S , Ivankina N A , Al-Sawafi M H
Published: December 2019

The article discussed one of the trends for new urbanism movement, namely transit-oriented development and pedestrian pockets. Two zones were examined within the city of Najaf in the Republic of Iraq, where two pockets were identified within the city were Maidan and the Sadrain squares. Three criteria were identified (land use, density, transport), then the indicators were derived from the criteria and their limits were defined to achieve a sustainable urban form.The analysis process was applied using the GIS environment. According to the results, It has been identified as the most important measures the most positive and negative characteristics of Maidan and the Sadrain squares and recommends the procedures to be carried out for the purpose of developing the two pockets, so as to help stakeholders decisions–making in the development of urban projects.
Material and function: on the specifics of formation in modern architecture
Authors: Kaschina I V , Nesterova A N , Yazyeva S B , Danilova-Volkovskaya G
Published: December 2019

The article considers the architectural creativity preservation problem and its internal meanings and values within the post-industrial society evolution. Architectural shaping as the Constitution spatial experience free accumulation and transmission process is analyzed from the point of view of changing the “material” and “function” ratio in the mass production and culture development context. The structural-functional approach development prospects to the theory architectural principles independent development are evaluated.
Fortification-spatial framework of the great Silk road Misimian branch
Authors: Pishchulina V , Treyman J
Published: December 2019

This article is devoted to the Great Silk Road as one of the branches fortification-spatial framework reconstruction which passed across the territory of the North Caucasus in the Mismian direction. As an initial condition for identifying the Great Silk Road Misimian branch fortification-spatial framework, the trade routes scheme having an archaeological rationale, derived by V.A. Kuznetsov. As a result of the study, a spatial-spatial pattern of resettlement in this Great Silk Road segment was revealed; the Great Silk Road strategically important sections of the Misimian direction were highlighted; the fortified settlements on the Misimian branch Great Silk Road types are identified.
Urban development in the republic of Iraq. Ecological assessment, development stages. Impact of the planned object on the environment
Authors: Abuali A M , Al-Shaybann A A , Buragba R
Published: December 2019

The article outlines the stages of urban development in the Republic of Iraq on the example of the province of Najaf. The stages of the environmental assessment development are consecrated and the types and mechanisms of the planned activity impact on the individual components of the environment are considered.

It was concluded that, in order to reduce the environmental tensions, it is necessary to continuously assess the effects of the impact both actual and planned on the natural environment and to find the optimal solutions to prevent possible adverse effects, the consequences of which may cause the negative changes in the environment. The environmental issues and environmentally prudent planning are of particular relevance.
Low-energy architecture in the south of Russia
Authors: Dvoretsky A , Klevets K , Spiridonov A
Published: December 2019

For the certification of the building (establishing the efficiency class), a simplified calculation of the excess heat energy during direct solar heating of the building can be applied. This excess is possible under appropriate climatic conditions of the construction site and the parameters of translucent structures. An example of a building project with low-energy architecture for the climatic conditions of Krasnodar is given. The use of passive solar heating devices reduces energy consumption for building heating by 43% and, accordingly, reduces carbon dioxide emissions into the atmosphere.
Hospital town of the Nikolaev city hospital in Rostov-on-Don in historic retrospective
Authors: Ludmirskaya A V
Published: December 2019

The article comprehensively analyzes the constructions of the Nikolaev Hospital City in Rostov-on-Don in context of the architect N.M. Sokolov creative style, discusses the volume-spatial composition of historic buildings, identifies the planning structural features of the complex and its style dominant for the first time. A deep study of the buildings of different time periods and their attribution is performed.
Replacement of the containment prestressing system (CPTS) when the NPP unit life extension
Authors: Pimshin Yu I , Korneva M V , Naumenko G A , Yagovkina E N
Published: December 2019

The paper deals with the replacement problem of the containment prestressing system (CPTS) at the extending stage of CCB life characteristics. The features of domestic CPTS used in the blocks construction in the 80s and the system developed by the French company Francine - CPTS-M used today as a replacement for the units modernization are studied. The paper describes their features and some problems associated with the monitoring organization of the unit life extension period.
Analysis of inter-production interaction in the geodesic industry
Authors: Germak O V , Gugueva O A , Kalacheva N A
Published: December 2019

Modern document management of topographic production was formed and developed since Soviet times, but with the development of market relations, the number of its participants (customers, manufacturers and consumers) has increased significantly. Thus, the role of the geodesist in the construction industry is expanding significantly. The task of the surveyor is to communicate with all participants of the engineering project: architects, representatives of design organizations, planners, engineers at the construction site, utilities, tenants, representatives of government and others. The purpose of this study was to analyze the production interaction between the customer of the work and the geodesic organizations (the survey executor). The survey by questionnaire, which we conducted, was attended by representatives of design organizations that are engaged in the preparation of project documentation for the construction (reconstruction or overhaul) of buildings and structures of various levels of responsibility, and survey organizations that are engaged in the preparation of technical reports on engineering and geodetic organizations.
The terrestrial laser scanning during the industrial object construction results analysis
Authors: Kuznetsova A A , Bryn M J A
Published: December 2019

This paper shows the results of monitoring the construction of industrial facility using terrestrial laser scanning and BIM. The construction object’s monitoring has been carried out for one year, from the moment of the foundations’ installation beginning to the main supporting building structures installation end. During the monitoring period, the geodetic basis for construction controlled, terrestrial laser scanning controlled, laser scanning data processing controlled, the construction of an executive digital information model controlled and the mounted structures deviations identification from their design solutions were performed.
Geodesic methods for modeling and protection of megalopolis objects
Authors: Hatoum H M , Choker H M , Mustafin M G
Published: December 2019

This article presents new techniques for the use of geodetic instruments when performing work on monitoring deformation processes and protecting monuments of cultural heritage. The prevention of dangerous deformations and destruction of building structures is an extremely important task, the solution of which ensures the preservation of all construction costs. For this reason, an increased attention was given to the development of early detection methods of possible structural damage to structural elements. There are many different methods for detecting displacement. Nevertheless, little work has been devoted to the development of real time observation methods. In addition to the existing methods, a permanently operating observation station is considered. The new method is based on: 1-The use of robotic motorized total station; 2- A preliminary calculation of the measurement accuracy. The actual results of the observations are given. Besides, the technique of preserving monuments of cultural heritage, including the creation of their models based on laser scanning and survey with unmanned aerial vehicles, is shown.
The excess measurements influence analysis in creating geodesic networks by the polygonometry method
Authors: Bogomolova N , Nikitchin A
Published: December 2019

The article analyzes the polygonometric moves elements accuracy in the redundant measurements implementation to ensure accuracy in the geodetic networks’ construction.
The functionality analysis of the quantum GIS Geo-information system as a part of the small-scale maps creation
Authors: Kopylova N S , Mustafin M G , Mishina M E
Published: December 2019

The article discusses the process of creating small-scale maps by means of a Quantum GIS geographic information system, and also highlights the current directions for the software products functionality development in order to automate and optimize the mapping processes in a GIS environment.
Meteorological database using in developing of empirical (physical and statistical) hail storm cloud models
Authors: Inuhin V S , Berezinsky I N
Published: December 2019

The paper presents the use of a meteorological database for a complex study of storm clouds on the example of a single-cell cloud. The database is presented in the form of a structure, including meteorological, radar, lightning and satellite information.
A study of hailstorms in the South of Western Siberia
Authors: Kuzhevskaia I , Volkova M , Nechepurenko O , Chursin V
Published: December 2019

The paper presents the mapped spatial distribution of the maximum hail days in the period 1966–2016 and the number of hailfall with different diameters and hail frequency from 2015 to 2018. The territories most affected by hail are identified, the key factor is orography. Hail with an annual frequency of occurrence is observed mainly in regions with an altitudes of more than 300 masl which influenced by the southern mountains of Siberia. The characteristics of convective clouds (height and cloud top temperature, thickness of the cloud, temperature at the condensation level) are presented according to upper-air sounding and satellite measurements. An assessment of synoptic processes on days with hail has shown an increase share of intra-mass processes, in particular, mesoscale convective systems (MCS) in the summer.
Comprehensive impact assessment development of the Coal field Campha in Vietnam to the coastal territory
Authors: Mustafin M G , Thanh-Son Tran , Manh-Hung Tran
Published: December 2019

Quang Ninh is a province in the North of Vietnam, located close to the sea and has high potential for economic development and conservation value with a wide variety of creatures as well as scenery. Coal mining activities in Quang Ninh province have had a great impact on the regional environment, including the coastal zone. Derived from the ability to measure and manipulate various materials and display on maps and drawings of the current status of the coast through time and space, the authors studied and processed the telecommunication data. Recruit multi-time to effectively monitor the variation of the coastal zone in general and the coast of Vietnam in particular, especially due to coal mining activities in Quang Ninh. The research results are important to provide the necessary data and information to support the planning and adjustment of coal production and exploitation in Cam Pha and Quang Ninh, Vietnam.
Creation of an information-integrated project management system for reprofiling of industrial facilities
Authors: Topchiy D , Lapidus A
Published: December 2019

There are renovation and conversion programs currently under way in all major Russian cities with million-plus population. Based on the findings of integrated survey of built-up areas, existing buildings and their architectural and space planning concepts, as well as the outdoor utility systems, and also taking into account economic expediency, developers make decisions on demolition of buildings or converting them into non-production facilities. Despite the available extensive international experience and a wide spread similar trend everywhere in Russia, no system-based, research-backed approach to such projects is known to exist. The article discusses the basic principles of forming a system that permits the interconnection of project participants, organizational structures and information bases, leading to an increase in the effectiveness of the project’s main indicators, provides an opportunity for managers to quickly evaluate the activities of project participants and manage individual modules of the system. The main elements of the system are: conversion; information support, as well as organizational structure. The harmonious synthesis of these elements makes it possible not only to evaluate the existing level of efficiency, but also to design a system of interconnections, as well as to control it. The main basis for the formation of the possibility of designing this is the differentiation of the existing system and its elements into separate organizational and managerial modules. These modules allow to make their quantitative and qualitative assessment, which in turn, makes it possible to control the entire system.
Use of regression analysis to calculate the required number of stalls for disabled people in the trade objects construction
Authors: Skachkova M E , Gureva O S
Published: December 2019

The article addresses the unified methodology lack problem for calculating the required number of stalls for people with disabilities in parking lots near various infrastructure facilities. To solve this problem, one of the possible algorithms for calculating this indicator is presented. this algorithm application is shown for the trade objects in St. Petersburg and the equation of the pair regression is found.
Parameter control of the adjustable pipeline heat supply system
Authors: Emelyanov R T , Klimov A S , Turysheva E S , Avlasevich A I
Published: December 2019

Controlled pipeline heat supply systems are equipped with shut-off valves that causes a decrease in the stabilization level of the heat-transfer agent transportation process and reducing the pressure in the network during transition processes. Booster pumping stations are installed to stabilize the pressure in the heat supply system. The heat-transfer agent transportation process becomes turbulent that significantly reduces the hydraulic system stability when such systems are working. The process of transporting the coolant. Regulator that contains proportional, integral, and differential control components is used to control the dynamic parameters. Studies have revealed the reduction level of dynamic characteristics depending on the regulator components. The use of PID control allows to change the oscillatory process into acyclic process.
Heat exchange process intensification in solar collectors
Authors: Pirozhnikova A P , Govorunov M A , Pirozhnikova T L , Muro G E
Published: December 2019

The article discusses improvement of a flat solar collector with the heat exchange process intensifying aim, which improves the quality and the equipment efficiency in question. Based on the solar thermal plants’ calculation, taking into account the design features affecting the generated energy amount, a comparative analysis of the characteristics of traditional flat solar collector and solar collector of intensified heat exchange with an independent heating contour was carried out. The theoretical study results of the thermal energy accumulation processes by solar receiving devices of two types are presented.
Improving the air cleaning devices from Thesolid fine aerosols
Authors: Puring S M , Vatuzov D N , Tyurin N P , Titov G I
Published: December 2019

The industrial processes are noticed to be accompanied by the contaminators’ emission inter alia the high-dispersion aerosols. To reduce the amount of the dust emitted into the atmosphere, it is advisable to provide the cleaning devices installation as a part of exhaust ventilation systems. Entrapped substances may be recycled or returned back to production, and it’s especially valuable if rare and expensive row materials are used in manufacturing. Trapping aerosols of fine dispersion with simple and reliable mechanical devices with low energy consumption is quite important. The proposed apparatus for the dust particles cleaning emissions is with a dispersion of 0,1 μm. Device operation is based on enlargement and following entrapment of solid fine particles on slabs perforated by the way of chinks and irrigation water contaminated air by the nozzles with the particulate composition of from 2,0 to 10 μm. The chinks width on the first and the second slabs, displacement of chinks hole axes of the first and the second slabs relative to each other and distance between slabs ensure creation of increased coagulation and stable sedimentation of particles are discovered.
Self-purification of the biosphere – aspect of surface water purification technology
Authors: Bulat A D , Filenkov V M , Obrubov V A , Chirkova E V
Published: December 2019

The article is devoted to the aspects of surface water treatment under the external (meteorological) factors influence. The aspect of atmospheric thunderstorm activity, as the current technology of cleaning and disinfecting the Earth’s air-water basin, is considered from the standpoint of the cyanobacteria functioning and its lysis mechanism. In the thesis form, aspects of the development and creation of a nature-like technology for disinfecting liquid substances based on the principles of atmospheric electricity are proposed.
Innovative design solutions to ensure the environmental safety in the existing water intake technological complexes of water systems for urban farms
Authors: Khetsuriani E D , Bondarenko V L , Ilyasov A I , Semenova E A
Published: December 2019

The main design flaws in terms of protection against young fish entering the water intake bucket, sediment inflows, sludge and floating objects, which largely do not provide the current regulatory environmental requirements for ensuring environmental safety (ES) of water intake technological complexes (WITC) directly interacting with the natural water environment (WE) of the water body (MPWS) as a part of the natural technical system (NTS) “WE-WITC-MPWS” were identified during the comprehensive studies to assess the functional effectiveness of existing water intake structures (about 44) of multi-purpose water supply systems (“MPWS.”) of urban farms and settlements in the Lower course of the river Don from the Tsimlyansky reservoir to the mouth (Azov).

In order to ensure the operating “WITC” operating systems based on the results of constructive studies using domestic experience in the use of high-strength synthetic fabric materials, an innovative design of a water intake structure in the form of a soft floating structure (SFS) has been developed providing the regulatory requirements on the main indicators of ES by 85%-95%.
Ammonium nitrogen content regulation in sewage water at the transportation stage
Authors: Wilson E , Serpokrylov N
Published: December 2019

Practical observations of the ammonium nitrogen content at the existing wastewater treatment plant show its excess over the calculated concentration by 30–60%, which occurs due to the atmospheric nitrogen fixation and its transition to ammonium.

Hydrogen peroxide has been shown theoretically and experimentally to be an environmentally friendly oxidizer in the wastewater pretreatment technology in order to prevent and regulate corrosion processes in the systems and structures transporting wastewater, as well as nitrogen fixation, and can be recommended for practical use.
Operating the hot water supply system problems during transfering the hostel to the apartment house status
Authors: Antsiferov S A , Lushkin I A , Usmanov E A
Published: December 2019

The energy infrastructure modernization is a complex social and technical problem requiring an integrated approach. After analyzing the hot water system operation in a residential apartment building, being previously a hostel, the reason for the temperature regime violation was determined. In connection with the building status change, the residents number has significantly decreased, the service block, which led to a change in water consumption conditions has been eliminated. In addition, the requirements for minimum water temperature in centralized hot water systems have changed. The question of using a dead-end hot water supply system possibility, provided by the project or its reconstruction into the circulation network, was considered. The studies were conducted in accordance with the methodology described in MIC 4.3.2900-11 “The centralized hot water supply systems hot water temperature measurement”. There was a discrepancy in the temperature coolant standard indicators at the dismantling points on different floors of the building. The difference in temperature at the input (the heat meter and thermometer readings) and at the end user is associated with additional water cooling in the supply pipes of the domestic hot water heating system. When transferring the public buildings to housing stock, it is necessary to revise not only water consumption rates, but also the hot water supply scheme in general. The lack of circulation leads to waste of hot water and increases the cost to the consumer. To ensure the required temperature standards for a full day in a dead-end hot water supply system, which is provided for by the project, continuous dismantling of the water is required, which is difficult to achieve with a changed building status. The resolution of the problem is possible only when the domestic hot water heating system is switched to the circulation mode with the circulation piping and the circulation pump installation.
The dynamic wave coefficient
Authors: Yaksubaev K D , Kochergina D D
Published: December 2019

Seismic calculations nowadays are carried out without accounting for the wave nature of the problem. All the seismic wave energy is assumed to be transmitted to the structure, but the wave part is reflected. The oscillating structure, in turn, affects the soil and gives back some of the energy to the soil. Thus failure to the wave nature of the problem results in to the excess of the calculated seismic loads over the real loads. Moreover, the magnitude of this excess is unknown.

The paper presents a solution of the wave effects determining problem. To account for the wave effects the system consisting of the soil seismic vibrations wave equation and the structure vibrations equation is solved. Thus, the task seems to be very difficult.

The purpose of the work is to develop and analyze compact exact solutions of the above task, since compact exact solutions can be put into practice of engineering calculations.

In the works of well-known authors an exact solution of the system of equations consisting of a wave equation describing the joint longitudinal seismic vibrations of the earth's crust and the equation of oscillation of the structure in the form of a point insert was obtained.

But the numerical calculations for the exact solution were not carried out.

The abstract solution analytical calculation from the work [1] for a concrete initial form of a seismic wave was carried out in this paper. The initial seismic wave is selected in the truncated harmonic function form. This choice allowed to derive a new coefficient – a dynamic wave coefficient. Numerical calculation of the wave dynamic coefficient showed that the classical non-wave methods for calculating seismic forces give overstated assessment. The dynamic coefficient depends on the properties of the soil.

In general, it also depends on the material of which the structure is made. For example, if the soil passes only high frequency seismic vibrations, it may be useful to select new materials to create a low frequency structure.

But the exact solution of the wave seismic stability problem is difficult even in the initial formulation. Therefore, in the present work a detailed analysis of the obtained exact solution was carried out.
Parameterization of environmental components in the information-modeling context of roads
Authors: Bobrova T V , Kodentseva Yu V , Perfiliev M S
Published: December 2019

The design diagrams for the interaction of natural structures components at various stages of the linear-type facility information modeling have been introduced: territorial planning, pre-design, engineering and detailed design. To improve the reliability of design solutions, the need for more detailed road zoning based on the engineering surveys findings at the design stage has been justified. Bunch of methods for transforming indicators of primary materials in engineering surveys into summarized attributive characteristics of the environment has been proposed. The order of the three-dimensional configuration of linear facility (stations) elements the into the operational territorial units (OTU) for the implementation of the linear road zoning process based on the aggregate taxonomy algorithm has been specified.
Simulation of wave processes in the multilayer structure surface layer properties identification by the finite element method
Authors: Cherpakov A V , Shilyaeva O V , Grigoryan M N , Polyakova T V
Published: December 2019

The modeling of a layered structure in a finite element Ansys complex is considered. The model is an imitation of a layered pavement design. The design consists of 10 layers, each of which has a certain fixed list of properties. We consider the simulation in the form of a simplified, flat statement of the problem. Simulated dynamic analysis under shock. The wave field of displacements in a certain part of the structure is analyzed. The correlation between the amplitude of the field displacement in a certain region of the surface layer and the variation of its elastic modulus is considered. Based on a numerical experiment, an approach to estimating the characteristics of a layer is constructed.
Ensuring assigned fatigue gamma percentage of the components
Authors: Kotesova A A , Teplyakova S V , Popov S I , Kopylov F C
Published: December 2019

The problem of increasing the efficiency of the construction machines functioning continues to be relevant in modern conditions. The downtime of construction equipment, in particular, of a single-bucket excavator (SBE), leads to a violation of the terms of work and to significant economic losses. One of the most loaded elements of a single-bucket excavator is a boom. Increasing the reliability of its work reduces the number of the machine failures greatly, and as a result reduces the cost of repairs and equipment downtime. The gamma-percentage fatigue life of the components, in particular, a single-bucket excavator boom, must correspond to the resource before discarding the machine. To prevent failures, it is necessary to increase the gamma-percentage fatigue life of the boom to the optimum value by changing the steel grade and the geometric characteristics. This will reduce the repair expenses and the damage from the downtime of the excavator as well as the mechanized machinery complex associated with its operation, thereby determining the relevance of the work presented.
Optimization of light oil products transportation to petrol stations of urban agglomerations
Authors: Fedotov V , Aleksikov S
Published: December 2019

Transport is one of the most important sphere of material production that provides population with manufacturing and non-manufacturing needs in all types of transportation. In the modern conditions of globalization, the necessity of transport providing is rising. Now one of the successful transport action main conditions is the transport service quality level increasing (quality of delivery of transported cargo etc.) and reduction of transport costs (cost of transportation, turnover ratio etc.), that is why the new organizational approaches in this field are necessary for these aims achieving. The accounting parameters, that have influence on vehicles work on line, let the transportation efficiency increase, reduce business costs due to vehicles and stops on the line list quantity reduction.
The grinding bodies movement dynamics study in a ball mill equipped with energy-exchanging devices
Authors: Romanovich A , Osalou A , Mamatova V , Pahomov E
Published: December 2019

The article deals with the issues related to energy saving during grinding in a ball mill equipped with energy exchange devices, pre-milled in a press-roller grinder. The bulk solids movement analysis in a ball mill at different locations in the energy exchange devices drum is presented.
The grinding clinker pressure process study
Authors: Romanovich A , Amini E , Apukhtina I , Pahomov E
Published: December 2019

The article describes the grinding process by pressure in order to study the effect of pressing on the fineness of grinding at its different granulometry. Experimental studies have been conducted to study the compressible layer height effect on the clinker grinding fineness, taking into account the initial granulometry.
To the question of the cement production materials destruction
Authors: Sharapov R R , Kharlamov E V
Published: December 2019

The article deals with the problem of determining the energy for the cement production materials destruction. It is shown that the destruction of various materials consumes a significant amount of energy. One of the most energy-intensive building materials is cement. The method of energy calculation for the cement production materials grinding on the cement clinker example is proposed. The grinding cement clinker process and additives is described on the basis of the thermodynamic method. The assumptions are made under which the destruction of the cement clinker occurs under the influence of external forces. The change in the volume of the crushed material due to the increase in energy in the original volume is shown. The expression for the elementary work on the cement clinker particles destruction is proposed. The expression for determining the total work on grinding the particle of cement clinker depending on its size, generalized thermodynamic force and elastic modulus of the crushed material is obtained.
Quality assessment and development of eco-development of urban development environment for preparing decisions on territory management
Authors: Kryakhtunov Alexandr
Published: December 2019

To date, there is an accurate understanding of the need for competent formation of a highly functional spatial framework of the urban environment. In order to effectively manage the development of the urban development environment, various projects are being created and implemented to create a comfortable urban environment at the level of the municipality. The author considers the approach of creating and implementing a system for assessing the quality of the urban environment, which would allow the formation of an index of the quality of the urban environment in a particular municipality.
To the question about prospects of territorial development of Tyumen city
Authors: Avilova Tatiana
Published: December 2019

The economic development of the region is strongly influenced by the proximity to oil and gas in the Khanty-Mansiysk Autonomous Okrug - Yugra and Yamalo-Nenets Autonomous District with the high demand for imported resources for productive activities and livelihoods. South of the organization deliver a variety of products to the North of industrial and consumer goods, providing a wide range of the population of the North of social services. The article describes the main directions of territorial development of residential development in all directions of the city of Tyumen.
Improvement of structures and methods for construction of unpaved roads in conditions of West Siberia
Authors: Chizikov I A , Slepnev P A , Kochetkov A V
Published: December 2019

The article discusses the roads construction methods in Western Siberia, built in difficult engineering and geological conditions. Consideration includes both traditional methods of constructing roads on a weak base and modern methods, including using geosynthetic materials. A bio-positive construction, the use of which is aimed at preserving and protecting the environment has been proposed. The main differences of the proposed design from the existing ones are given. A design diagram and a mathematical model for determining the overall stability of a bio-positive structure in complex geotechnical and hydrological conditions are given. The full-scale experiment results are given.
Travel printer with positional stepper motor control
Authors: Yemelyanov R T , Klimov A S , Turysheva E S , Servatinsky V V
Published: December 2019

A new technical solution of the road printer proposed to improve the efficiency of the device and reduce the complexity in the application of complex graphic images on asphalt concrete pavement to improve road safety was considered. The results of theoretical studies of the “Road Printer” project with the implementation of a simulation model of the automatic control system for a stepper motor of a road printer using the MATLAB & Simulink software are presented. The results of modeling a control system model with synthesized parameters of the proportional-integral-differentiating (PID) controller are given.
The main aspects of the bionic bridges building
Authors: Ivanova N V , Makarov A V , Kalinovsky S A
Published: December 2019

The history of bridge construction has been analyzed. It is revealed that the bionic approach allows to design bridges to the greatest extent harmoniously forming a cultural landscape, public areas of the city and dynamically developing coastline in order to provide a comfortable living space sphere. This is due to the fact that architectural bionics is the direction that allows to borrow the architectural lines and volumes from nature, to create an object that most organically fits into the natural city environment. Some methodological approaches to the bionic engineering structures design and the possibility of their use in the formation of bridge structures in the modern city structure are highlighted. Some solutions of bridge structures elements, which, when used as components of bionic bridges are proposed. They will improve their efficiency from an engineering point of view.
Trends in state management of spatial planning
Authors: Fedoseev I V , Yudenko M N , Grigoriev K A , Gospodinova A
Published: December 2019

A combination of factors, influencing the spatial regional planning is defined as follows: social stratification, low migration capacity; move into next technological paradigm according to the results of the fourth technology revolution; insufficient accounting of low material intensity of production in post-industrial economy. It has been determined that civil and housing construction defines socio-economic development of territories and the significance of prefabricated construction in modern conditions has been increasing with the application of new construction technologies, as well as advanced materials and structures.
The economic damage from biodeterioration in building sector
Authors: Dergunova A , Piksaykina A , Bogatov A , Salman Al D S D , Erofeev V
Published: December 2019

The article deals with the problem of biological impact in building materials and construction. The method of determining the losses from biological damage is given. The structure and method of estimation of direct and indirect costs of biological damage are considered. The definition of environmental damage from biological damage and its components.
Economic model of the construction subjects’ intellectual potential transformation
Authors: Alexeenko V V , Seredina N S , Kosaynova V N
Published: December 2019

The human potential is of great importance in modern economy during the period of technological structure change and the transition to the knowledge economy, the imperative of which is the cognitive technology. Human abilities aimed at making managerial decisions strategically important for the progressive development of economic entities are expressed in the process of transforming potential into “new resources”. In this regard, the direction and power of the transformation processes form the basis of the economy. The basic factor in the production of the transformation is human (intellectual) potential. The economic effect obtained as a result of transformation processes is directly dependent on the knowledge of the person, taking the decision. In order to improve the effectiveness of the resources use a methodology for assessing the transformational costs of enhancing the intellectual potential of business entities was developed. The analysis of the products cost structure produced by business entities will make it possible to identify the priority areas for the revitalization of resources necessary for the finished goods production and the conditions for transforming the potential into “new resources”.
Eco-cities in the paradigm of a circular economy and a comprehensive internet
Authors: Rudskaya E N , Eremenko I A , Yuryeva V V
Published: December 2019

The article examines the cause-effect relationship of sustainable development and the formation of urban ecosystems on the principles of a circular economy using green technologies. For the purpose of the study, problems of organizing eco-city and eco-city management systems based on the cloud-based sharing platforms were selected. Particular attention was paid to exploring the possibilities of municipal government in the comprehensive Internet aspect.
Management of housing construction and reconstruction of the housing stock based on the modern concept of forming marketing investment decisions
Authors: Selyutina L G , Pesotskaya E V , Maleeva T V
Published: December 2019

The article investigates the important and topical aspects of the organization of the housing stock reproduction process management in the context of modern marketing management theory, the key feature of which is its integration into the enterprise system. The article considers the expediency of formation of investment developments implementation mechanism in housing reconstruction and construction sphere using tools offered by modern marketing management concept. The concept of investment marketing is specified, which is focused on the search for investment solutions that provide implementation of investment proposals in the field of construction and reconstruction of housing, the importance of which increases in modern conditions, taking into account the application of new technologies of construction of houses, new materials, and structures. In the light of the obtained results of the research, the author's approach to the formation of marketing investment decisions in the field of housing construction and reconstruction of the housing stock is presented.
Problems justifying the discount rate in emerging capital markets
Authors: Voronina N V , Zaretskaya V G
Published: December 2019

The article discusses the methods of calculating the discount rate when evaluating the investment projects’ effectiveness. The authors have studied the problems of its justification taking into consideration the peculiarities of emerging capital markets. The identified problems are aimed at improving the projects cost-effectiveness calculating accuracy.
Development of a methodology for assessing the financial security of construction enterprises
Authors: Kosaynova V N , Seredina N S , Alexeenko V V
Published: December 2019

One of the key challenges in the housing market is to ensure the developer’s reliability. The transition to the project financing mechanism requires the financial sustainability observation within the limits of the established standards by the specialized developers. In current economic conditions a more comprehensive analysis including not only financial sustainability indicators is needed for the disclosure of the financial situation of a building industry company. The authors selected the indicators groups and identified the specific indicators for the construction industry. These indicators were considered in comparing their actual values with standards. They reflect the financial security. The highest degree of safety is achieved under the condition that the whole complex of indicators is within the permissible limits of its threshold values, and the threshold values of one indicator are achieved with no connection with the others. In the process of implementing the assessment methodology the cumulative indicators were calculated for each group of indicators. On the basis of the above-mentioned, an integral index was obtained for each of the enterprises included in the sample. The authors adapted the financial security assessment model based on the data presented on the portal of the Unified Developers Register taking into account a specific territory (Bryansk Region). The formulated and tested model made it possible to assess the financial security of the largest enterprises in the construction industry, draw appropriate conclusions and propose management solutions within the framework of these or those indicators.
Consideration of the effect of flue gas emissions into the atmosphere when selecting construction sites
Authors: Azarov V.N. , Burlachenko O.V. , Chebanova S.A. , Seimova G.V.
Published: December 2019

The influence of the district gas boilers emissions on the atmospheric air is studied. prediction of the air pollution by determining concentrations along the length of the dispersion of smoke emissions will determine the degree of pollution in the existing buildings and the suitability of vacant land for construction near thermal enterprises. The proposals for the selection of sites for construction near thermal power plants have been developed.
Improving workplace safety for construction workers handling dry construction mixtures
Authors: Menzelintseva Nadezhda , Karapuzova Natalia , Marinina Olga , Yermilova Natalia
Published: December 2019

To improve the reliability of respiratory protection available for workers handling dry mixtures, when dust and noxious gases penetrate the work area, it is necessary to both upgrade the design of the respirators currently in use, and develop new porous layer materials to enhance the protection level along with user convenience. An ion-exchange filtering material has been developed, which offers both protective and hygienic properties. A mathematical model has been created to simulate the half-mask casing of a Snezhok GP-V type respirator. The finite element method was used for stress analysis of the casing.
The assessment of air pollution of the city of Nalchik by road transport
Authors: Gekkieva Safiyat
Published: December 2019

This work is devoted to the assessment of the state of the air environment of the city - the surface layer of the atmosphere in which the most intense processes associated with the arrival of harmful substances occur. In complex processes of interaction of a large number of factors that determine the air quality at a particular time, the most important are the characteristics of emissions of harmful substances from sources of air pollution, as well as weather conditions affecting the spread of impurities. This study attempts to assess the role of air pollution from vehicles in Nalchik.
The study of the parameters of the dust features of the roadside territory of the coastal city
Authors: Abukhba B A , Sakharova A A , Lupinogin V V , Nikolenko D A
Published: December 2019

The article considers the level of air pollution in several zones of the roadside territory in the city of Gudauta. Four zones are selected: roadside, residential, resort and industrial. Chemical analysis of dust samples of each zone was carried out. Comparative chemical analysis was performed between all samples. The chemical background characteristic for each zone was revealed. The dispersed analysis of the selected dust in each zone was carried out and analyzed..
CR regular embeddings of 𝑆⁴ⁿ⁻¹ in ℂ²ⁿ⁺¹
Authors: Kasuya Naohiko
Published: December 2019

Ahern and Rudin have given an explicit construction of a totally real embedding of

S
3

S^3

in

C

3

\mathbb {C}^3

. As a generalization of their example, we give an explicit example of a CR regular embedding of

S

4
n
−
1

S^{4n-1}

in

C

2
n
+
1

\mathbb {C}^{2n+1}

. Consequently, we show that the odd dimensional sphere

S

2
m
−
1

S^{2m-1}

with

m
>
1

m>1

admits a CR regular embedding in

C

m
+
1

\mathbb {C}^{m+1}

if and only if

m
m

is even.
Emergent flocking dynamics of the discrete thermodynamic Cucker-Smale model
Authors: Ha Seung-Yeal , Kim Doheon , Li Zhuchun
Published: December 2019

We present two sufficient frameworks for the emergent dynamics to the discrete thermodynamic Cucker-Smale (TCS) model. Our proposed frameworks are formulated in terms of the initial data and system parameters. The TCS model was first introduced to incorporate the effect of a temperature field in the dynamics of the Cucker-Smale model, and it has been systematically derived from the hydrodynamic model for gas mixture under the spatial homogeneity assumption. The particle model by Cucker and Smale describes the temporal evolution of mechanical observables such as position and velocity, whereas our TCS model governs the dynamics of position, velocity, and temperature of thermodynamic C-S particles. The TCS model conserves the mass, momentum, and energy, and the total entropy is monotonically increasing so that it is consistent with the principle of thermodynamics.
Individual-Level and Couple-Level Discordant Chronic Conditions: Longitudinal Links to Functional Disability
Authors: Polenick Courtney A , Birditt Kira S , Turkelson Angela , Kales Helen C
Published: December 2019

Background

Multiple chronic conditions may erode physical functioning, particularly in the context of complex self-management demands and depressive symptoms. Yet, little is known about how discordant conditions (i.e., those with management requirements that are not directly related and increase care complexity) among couples are linked to functional disability.

Purpose

We evaluated own and partner individual-level discordant conditions (i.e., discordant conditions within individuals) and couple-level discordant conditions (i.e., discordant conditions between spouses), and their links to levels of and change in functional disability.

Methods

The U.S. sample included 3,991 couples drawn from nine waves (1998–2014) of the Health and Retirement Study. Dyadic growth curve models determined how individual-level and couple-level discordant conditions were linked to functional disability over time, and whether depressive symptoms moderated these links. Models controlled for age, minority status, education, each partner’s baseline depressive symptoms, and each partner’s number of chronic conditions across waves.

Results

Wives and husbands had higher initial disability when they had their own discordant conditions and when there were couple-level discordant conditions. Husbands also reported higher initial disability when wives had discordant conditions. Wives had a slower rate of increase in disability when there were couple-level discordant conditions. Depressive symptoms moderated links between disability and discordant conditions at the individual and couple levels.

Conclusions

Discordant chronic conditions within couples have enduring links to disability that partly vary by gender and depressive symptoms. These findings generate valuable information for interventions to maintain the well-being of couples managing complex health challenges.