bluuebunny/crossref_metadata_2025 huggingface dataset:
The issues of the archaeological complex conservation in Armenia and Nagorno-Karabakh
Authors: Kirakosyan L V
Published: December 2019

The article discusses the results of practical and preventive measures for the preservation and conservation of the historical environment of architectural and archaeological complexes undertaken by us in recent years during the excavations of Tigranakert in Nagorno-Karabakh. It is important to note that the conservation of complexes is considered as an important part of the research process of the monument. The article describes the strategic directions and methods of conservation and restoration of objects, which are formed in accordance with the theory of protection of monuments and the principles established by the international charters on conservation and restoration of monuments. The presented materials and recommendations can be useful in preserving the historical and architectural heritage of the Republic of Armenia and Nagorno-Karabakh.
On the medieval architecture chronology of the Black sea Coastal area north in the North Caucasus and the Crimea
Authors: Pishchulina V V
Published: December 2019

During the research we revealed three periods of architectural and building activity activation in the Black Sea coastal area north territory of the North Caucasus and the Crimea. All these periods were connected with the Christianization waves. The first period, the Christian expansion beginning (the VI-IX cc.) is characterized by the Christian objecting role conceptualization development the landscape territorial organization, the mono-apsidal churches and certain types of temples building, mainly within fortresses built according to the classical rules of Vitruvius. In the second period (X-XII cc.) when the existing denominational centers influence was at its peak, the main principle was to follow the temple architecture tendencies of the Byzantine Empire, Armenia, Georgia, for the North Caucasus – Abkhazia. In this period depending from the influence area the basilicas, cross-domed churches, hall churches with pasto-phoria and an inscribed apsis, mono-apsidal churches of different types were built. In fortification architecture, on the contrary, there was a tendency towards regionalization. The feature of the third period (XIII-XV cc.) is the regional development and the Christian architecture ethnic variants on the population world views religious blending, the fortified settlements creation basis.
Safety level assessment of frame buildings by example of NPP unit engine compartment
Authors: Pimshin Yu I , Zayarov Yu V , Lagutin P P
Published: December 2019

The paper considers the parameters determining issue during the frame building inspection and its safety level assessment. It was proposed to use the “synthesized” tolerance for the transverse frame of the workshop frame as an estimated value. The dimension chains well-known theory is used to determine this tolerance value. As a final characteristic of the framework technical state the safety factor is proposed to use which is determined by the limiting and current value of the "synthesized" tolerance.
About prospects for the air laser scanning technology implementation for obtaining a digital model of densely built-in territories
Authors: Gura D A , Markovskii I G , Hahuk B A , Pshidatok S K
Published: December 2019

The work raises the question of the urban development using a digital model based on the results of airborne laser scanning for the municipality administration needs. The processes of air laser scanning and subsequent cameral processing of the results are described. Specialized software for analyzing the information received and authors’ methods for classifying the objects are considered. The available achievements analysis in the field of city models compilation and the analysis of natural and man-made objects obtained from aerial surveys of urban areas is carried out. The conclusions are drawn about the prospects for the application and development of this technology for the purpose of accounting and monitoring the urban areas in terms of its impact on the urban economy, the quality of the population life and forecasting emergencies.
The big structures modeling and archiving using terrestrial laser scanner and proposing a new geodetic method for future monitoring
Authors: Choker H M , Hatoum H M , Abboud M R
Published: December 2019

The terrestrial laser scanner (TLS) method was developed to be the optimal digital technology to protect and preserve various objects, including cultural heritage monuments for about 20 years ago. This method allows the high precise measurements of cultural features at archaeological sites in the aim of preserving them for the future generations. However, the traditional geodetic techniques, such as GPS and Total Station (TS) are still needed for assuring the geo-referencing of the resultant model. This article presents the results of the study of the state of the Temple of Jupiter in Baalbek castle, Lebanon. In addition, a 3D virtual model was created using terrestrial laser scanner [1]. A new method for monitoring strain is also proposed for direct and rapid detection of any changes in building structures [3].
Methods of changing the thunderstorm electricity by modifying convective clouds natural and artificial origin
Authors: Doronin A. P. , Kuleshov Yu. V. , Petrochenko V. M. , Shchukin G. G.
Published: December 2019

The report describes the methods of changing the thunderstorm electricity of convective clouds of natural origin, excluding the possibility of the formation of storm clouds, as well as methods of creating artificial clouds of vertical development, changing the electrical state of the atmosphere. Quantitative estimations of suitability to destruction of convective clouds over the Central and Northern regions of the European territory of Russia received as a result of processing of materials of aircraft sounding of the atmosphere of TAE-7,7 m on stations "Vnukovo" and Arkhangelsk are given.The results of field experiments on the creation of clouds of vertical development carried out to date are analyzed. Some fields of application of the methods of change of storm and atmospheric electricity given in the report are considered.
To the question of heat and mass transfer in clouds and in engineering
Authors: Kalov R Kh , Balkarova S B , Kalov Kh M , Etezova M B
Published: December 2019

Heat and mass transfer in the nature and engineering with the help of the following physical mechanisms: convective heat transfer, mass transfer, radiant heat transfer (transfer of energy by radiation) are studied in the given work. In various cases each of these physical mechanisms can make major or minor (which may be neglected) contribution to heat and mass transfer. Simplified calculation formulas of heat and mass transfer are received for the following cases: heat amount transmitted by radiant heat transfer is small and may be neglected; convective heat transfer is not significant; mass transfer has poor influence on heat transfer.
Results of expedition research of thermodynamic conditions influence in atmosphere on charge transfer under the influence of mechanical forces
Authors: Panchishkina I , Petrova G , Petrov A , Egorov E
Published: December 2019

Observation results accumulated to date show that the processes of mechanical charge transfer in the surface atmosphere play an important role. Mechanical transfer current can be considered as a local generator of electric field acting everywhere in the surface atmosphere layer. Operation regularities studies of such a generator will make it possible to evaluate its effect on the formation of the electrode layer structure. To do this, it is necessary to identify the connections between the mechanical transfer current and other physical factors, which is a complex multiparametric task, the solution of which is facilitated by the analysis of experimental data on the electrical and meteorological characteristics of the atmosphere surface layer. The paper discusses the results of current density measurement of mechanical transfer from the atmosphere to the ground, obtained during a long-term expedition experiment in the Rostov region. Simultaneously with measurements of current density, meteorological parameters were recorded: air temperature, wind speed and direction, vertical air velocity at different levels. To assess the effect of meteorological parameters describing the thermodynamic state of the surface atmosphere on charges transfer under the influence of mechanical forces the method of one-way analysis of variance was used. The F-test calculated according to measurement results in the Rostov region for each investigated case made it possible to reveal the high reliability of this effect.
Electrodynamic processes models in atmospheric surface layer
Authors: Kupovykh G V , Timoshenko D V , Klovo A G , Kudrinskaya T V
Published: December 2019

The paper outlines the methodological approaches to the problem of mathematical modeling of electrical processes taking place in the surface layer of the atmosphere. A comparative analysis of various problem statements was carried out in terms of the possibilities of qualitative and quantitative analysis, as well as a set of hypotheses taken into account in the models regarding the properties of the studied processes.
Experiments on lightning data assimilation: preliminary results
Authors: Rubinstein K G , Gubenko I M , Yusupov Yu I , Tikhonenko N D
Published: December 2019

This article is devoted to the analysis of the first results of the impact of lightning data assimilation on the numerical weather forecast. The article includes a description of the used algorithm and the results of the conducted numerical experiments for the convective storms over Krasnodar region of Russia observed in 2017. Numerical weather prediction model WRF-ARW (Weather Research and Forecast) and lighting data gathered from WWLLN (Worldwide Lightning Location Network) are used [1. 2]. It was found that the average absolute errors of the temperature. atmospheric pressure. humidity. precipitation and wind are reduced. It is shown that the configuration of prognostic precipitation fields and their intensity is much closer to the observations. This is especially clearly seen for shallow precipitation (0-7 mm).
Lightning discharges registration by the electric field mill
Authors: Korovin E A , Gotyur I A , Kuleshov Yu V , Shchukin G G
Published: December 2019

Analysis of opportunities of use of the electric field mill for lightning discharges detection on the basis of data of an experiment is carried out in the work. Data of joint registration of lightning discharges by the lightning location systems and by the electric field mill are presented. The option of improvement of single-station system characteristics due to joint working of the electric field mill and the lightning direction and range finder is offered.
Use of composite materials for reconstruction of flooring in industrial buildings
Authors: Abramyan S G , Burlachenko O V , Oganesyan O V
Published: December 2019

The paper highlights the relevance of using composite materials for reconstruction of heavy-duty concrete and reinforced concrete flooring in industrial buildings, stating that at the current stage of construction development special attention is paid to the use of steel fiber concrete flooring, as this material allows for reconstruction of industrial floors with minimum financial and labor expenditure. The novelty of the research lies in the fact that the adhesive between the flooring to be restored and reinforced and the new steel fiber concrete layer is a composite polymer-bitumen material with cement and graphite powder additives, which was previously experimentally developed by the authors. This material, given an adequate thickness, also serves as a structural spacing to level the surface of the underlying layer and reduce friction under the bottom of the upper steel fiber concrete layer and the existing floor. The paper describes the reconstruction workflow. The composition of the steel fiber concrete layer has been assumed based on the research of other authors. Although experiments proved the integrity and strength of the flooring after its reconstruction with the new technology, it is noted that the final characteristics of the proposed floor structures and workflow can only be assessed in the course of normal use, which can be the basis for further research aimed to optimize the thickness of the suggested composite layers. The experiment delivered certain labor and material cost figures for evaluating the economic efficiency of the use of the composites described below in the concrete flooring reconstruction.
Main principles of choice of multi-purpose design solutions for construction operations when conducting judicial construction and technical expertise (JCTE)
Authors: Zilberova I Y , Nikulina O V , Novoselova I V
Published: December 2019

The article contains the discussion of materials on the principles of selection of multi-purpose design solutions for the construction industry when conducting a judicial construction and technical expertise, as well as the presentation and an algorithm for solving problems of this type. Based on the interpretation of results of theoretical works and analysis of judicial practice, a method was obtained that can be used when conducting a judicial construction and technical expertise in order to solve the issues of selecting design solutions and materials. When using this method, all rearrangements of variants are checked by their preference and compared with each other. The considered method has been continually applied in solving practical issues of judicial construction and technical expertise. Actually, this type of tasks is often found in the framework of arbitration processes when solving issues on the effectiveness of the use of budgetary funds. The use of the proposed algorithm is the most optimal for the preparation of conclusions of a forensic construction expert for cases of this category.
Supply volume forecasting of building materials
Authors: Kabanov V N
Published: December 2019

Fault times occur due to the late delivery of building materials for which it is impossible to create a stock on a construction site (for example, a concrete mix) when erecting buildings made of monolithic concrete and reinforced concrete. High reliability of supply volume forecasting of building materials per unit time is required to reduce non-production fault times. Based on the equality intensity of the work performance and the structural materials supply intensity, the goal is to develop a generating forecast method of the demand for building materials, taking into account a given level of organizational and technological reliability. The use of classical methods of probability theory made it possible to develop a non-complex mathematical apparatus, which use reliably ensures high confidence of demand forecasts for building materials. The study results can be used in relation to building materials for which it is impossible to create a stock on the construction site, for example, a concrete mix. The practical application of these research results is capable of developing production plans reflecting the real possibilities of contracting organizations, including the production intensity increase of construction and installation works.
Features of determining the concrete structures strength at dangerous production objects by means of non-destructive control
Authors: Gubeladze O A , Gubeladze A R , Kirilchik L F
Published: December 2019

The article deals with the assessment of reinforced concrete structures of a hazardous production facility, namely, the localizing facility of a nuclear power plant during the construction. The analysis of the methods applicability for determining the strength of concrete for this type of structures.
Combined pneumatic cleaning and aspiration system using vortex dust collectors
Authors: Azarov A , Zhukova N , Startseva Yu
Published: December 2019

The article discusses the main calculating methods of the dust removal systems. Calculation and design of systems for cleaning is made taking into account the technological features of the production process and operating conditions, the typical equipment designs use and the units and machines sizes minimum number use. As a rule, the dust deposited on the ceilings of the enterprise has smaller fractions than the dust removed from the nodes of the process equipment. What is important is the parameters selection of the dust collecting apparatus for the dust to be cleaned. So, to adjust the vortex dust collectors, when using the existing aspiration systems, for the dust removal purpose, it is proposed to use a probabilistic-stochastic approach to establish fractional efficiency. The vortex dust fractional collectors’ efficiency depends on the probability of trapping dust particles of a certain diameter in the areas of installations. The procedure for determining the fractional efficiency of vortex dust collectors to adjust the stationary aspiration systems for dust removal is considered.
Environmental safety in the irrigation and watering systems design stage
Authors: Vasiliev S M , Senchukov G A , Gostishchev V D , Ponomarenko T S
Published: December 2019

At the present stage of water management complex development as a part of the agricultural-industrial complex (AIC), there is an ambitious task to create fundamentally new technologies for using water resources for existing and emerging irrigation and watering systems (I.W.S.). Based on the transformations in natural environments natural processes unity (atmosphere, hydrosphere, upper layers of the lithosphere and soil cover) aimed at the water resources formation (surface and underground runoff) within the basin geosystem under consideration spatial limits, with water use technological processes at I.W.S. as a part of the natural-technical system (NTS) “Environment - I.W.S. – Population” (“E.- I.W.S. - P.”), presents the comprehensive studies results of the processes of interconnection, interaction and relationship (IIR) of the I.W.S. technogenic component with E. and living P., on the basis of which the methodological foundations were developed for putting forward the new ideas on water resources use, where the central concept is the “Ecological Acceptability” of design decisions, stipulating the system principle of the principal role of the whole in relation to the main problems of Energy, Water, Food and Ecology. The I.W.S. environmental acceptability is determined by the current regulatory environmental requirements for environmental safety (ES) in the areas of I.W.S. influence. Based on the comprehensive research results, the constructive and technological requirements are formulated for providing electronic components in design solutions, as factors in providing electronic information for I.W.S.
Environment-friendly solutions for the disposal of waste generated during drinking water disinfection with electrolytic sodium hypochlorite
Authors: Skryabin A Yu
Published: December 2019

The present article is concerned with the problems of recycling and reuse of waste generated in the electrolytic production of sodium hypochlorite at water treatment plants. New engineering solutions aimed at ensuring environmental safety and lack of waste during large-scale production of sodium hypochlorite from aqueous solutions of common table salt are recommended herein.
The influence of finishing materials on the formation and propagation of acoustic resonant waves from external sources of noise in a closed room
Authors: Sidyakin P , Belaya E , Shchitov D , Pershin I
Published: December 2019

The analysis and selection of the optimal finishing building materials according to the criterion of influence on the formation and propagation of acoustic resonant waves from the external sources of noise in a closed space have been carried out. The buildings located directly on the red line or at a distance of up to 100m from the roadway get most of the acoustic pressure from motor vehicles. Exceeding the permissible norms is especially often observed during the rushhours and on weekends. Acoustic waves, getting into the room and partially reflected from the enclosing structures create a resonance negatively affecting people in the room. This problem can be partially solved by the correctly-chosen home decoration materials, which have an absorption coefficient at average frequencies greater than 0.2 at geometric frequencies of 500-4000 Hz.
Problems of operating the hot water supply system during transfering the hostel to the apartment house status
Authors: Antsiferov S A , Lushkin I A , Usmanova E A
Published: December 2019

The energy infrastructure modernization is a complex social and technical problem that requires an integrated approach. After analyzing the hot water system operation in a residential apartment building, previously a hostel, the reason for the temperature regime violation was determined. In connection with the building status change the number of residents has significantly decreased, the service block has been eliminated, which led to the changes in water consumption conditions. In addition, the requirements for minimum water temperature in the centralized hot water systems have changed. The using a dead-end hot water supply system possibility question, provided for by the project or its reconstruction into the circulation network, was considered.

The studies were conducted in accordance with the methodology described in MUK4.3.2900-11 “The centralized hot water supply systems hot water temperature measurement”. There was a discrepancy in the standard indicators of the coolant temperature at the points of dismantling on different floors of the building. The difference in temperature at the input (data of the heat meter and thermometer) and at the end user is associated with additional water cooling in the supply pipes of the HWS system. When transferring public buildings to housing stock, it is necessary to revise not only water consumption volumes, but also the hot water supply scheme in general. The lack of circulation leads to hot water waste 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 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 hot water supply system is switched to the circulation mode with the installation of circulation piping and the circulation pump.
Safety ensuring of the rail lift and transport facilities at the track ends
Authors: Demyanov Al An , Demyanov Al Al , Pavlitskiy B I , Pavlova I V
Published: December 2019

The dead-end stops that prevent the descent and destruction of rail lift and transport facilities are used to ensure their safety. They are shock type, shockless type and combined. The most promising are the dead-end stops of unstressed type, since the main task of the dead-end stop is to stop the rail type device at the minimum distance. The probability of the crane overturning in the longitudinal or transverse planes of the track will depend on the "smoothness", "softness" of the braking. To improve the "smoothness" and consequently the braking safety, the dead-end stop design with the self-reinforcement effect of the resistance forces work is proposed and that can be used both for lifting and transport, and for main rail systems. Analytical dependence for the design calculation of the dead-end stop according to its main functional characteristic was obtained. The calculated dependency includes all the basic parameters allowing to determine its dimensions and configurations of the power elements and is the basis for the development of a diagrammatic layout, a general view drawing and a subsequent refined calculation of the dead-end stop design.
Ways to Improve the Durability of Pneumatic Tires
Authors: Evseev D Z , Kotesova A A , Kosenko V V , Golubeva A Y
Published: December 2019

Current trends of functional improvement of pneumatic car tires are described in the article. As a rule, these are the structural features of a car wheel that allow getting the nearest service station after a tire damage. The airless tire design eliminates the damages specific for pneumatic tires. They have been used for construction vehicles and military vehicles exclusively. However, improving the durability of pneumatic tires is relevant. This is due to the increase of free speed. There are two ways to improve the durability of automobile tires. The first way is to use tire damping, thanks to the new material structure of the tire. The second way is to use thermoelectric cooling to reduce thermal effects on the tire.
Study of the material crush process with an anisotropic texture between rolls with displaced rotation centers
Authors: Romanovich M , Osalou A , Mamatova V
Published: December 2019

The article aims at obtaining the analytical dependences to determine the optimal material crush process with an anisotropic texture between rolls with displaced centers of rotation. The data analysis allowed establishing the grinding materials process implementation due to the sectional mode with the coarse grinding stage removal outside the ball mill in a separate unit, providing the best conditions for the material crush and is very promising. The material crush process is determined by the rocks’ destruction mechanism and its features, which include the rock-crushing action dual nature– crushing rock axial force, as well as some design features of the rolls. The features affecting the anisotropic rock crush process and the overturning moment appearance the shape and size of the rock-breaking inserts, the angle of their suspension, the parameters of the rock-breaking elements’ physical and mechanical properties.
About the technological equipment tightness evaluation method in asbestos-cement products manufacturing
Authors: Burhanova R A , Evtushenko A I , Stefanenko I V , Vinshu M S
Published: December 2019

The technological equipment evaluation method as a dust emission source, adapted for the asbestos-cement production field is presented. An example of determining the process equipment tightness and calculating the dust emissions amount in the stocking plant workshop for the asbestos-cement products manufacturing is given. It made it possible to identify the sources of the highest dust emissions, to evaluate the quality of functioning of the used means of air purification of the working area, the harmful substances maximum permissible concentration excess level. The recommendations to reduce the negative impact of the dust factor in the enterprise working areas air are given.
World experience in the development of container traffic
Authors: Egorov Anatoly , Pilipchuk Nadezhda , Khmelev Igor , Shatokhin Vitaly , Kovkin Alexey
Published: December 2019

The article is devote to the study of the global market of logistics services. The main issues on the containerization of international cargo transportation, as well as on the improvement of the development of multimodal transportation on their basis are the most important and priority in the state transport policy of all major exporters and importers in the international trade market. The approaches to the implementation of the concept of container traffic with the participation of various types of transport in various countries are investigate. In connection with the sanctions imposed by the West, cargo turnover has increased significantly, primarily with the countries of the Asia-Pacific region. Most of the goods transported to the Russian Federation in the most convenient, versatile and reliable way - through container shipments. However, the infrastructure and experience of many Russian participants in the container business turned out to be unprepared for such a development of events, and often the distrust of many foreign companies becomes an insurmountable obstacle to the further rapid growth of the Russian economy. Customers of large projects and international organizations wishing to see an assistant and reliable partner in the logistics operator periodically meet with an unprofessional approach and suffer losses where they should not be. They can guarantee the acceleration of cargo traffic and product distribution, increased safety of the goods transported while reducing the requirements for their packaging, facilitating workflow and other factors.
Organization of export transportation of goods from Russia to China
Authors: Miloslavskaya Svetlana , Panychev Alexander , Myskina Anna , Kurenkov Petr , Rudakova Elena
Published: December 2019

The relevance of the scientific article is because the growth rate of export shipments of container trains is increasing, and the transport infrastructure is developing. The article is devoted to the organization of containerized export transportation of goods from Russia to China. The transit, domestic, import and export transportation of containers carried out along the main railway of Russia - along the Trans-Siberian Railway (Great Siberian Route). Transition of the document flow of participants of foreign economic activity into electronic form with the possibility of using electronic signatures, as well as maintaining a register of all documents using the Internet platform, will allow customs authorities to track the legitimacy of companies. Since rail transport at this stage of development still belongs to the branches of the natural monopoly, the character and completeness of the regulation of tariffs for freight rail transportation is of no small importance in improving tariffs. The article explores the main advantages in organizing rail container transportation. Lists the services that include the rate of export of goods from Moscow to Shanghai by rail. Also, services that are not included in the calculation of rates. “Drop Off Charges” rates are presented depending on the place of departure and the place of delivery of the empty container. On the example of the Trade Logistic company, an algorithm is proposed for calculating the rate for sending one container from the Bazaikha station from the Trade Logistic company.
Study of the stability of soil slopes and downhills with the use of fiberglass dowels
Authors: Ryabukhin A K , Lesnoy V A , Kalashaov D Y
Published: December 2019

This article presents the findings of a study of applicability of fiberglass dowels for reinforcement of soil slopes and downhills in geological conditions of the Greater Sochi. Within the framework of the performed surveyes, the analysis of the data array on engineering-geological conditions has been executed, physical- and mechanical properties of soil properties for the Greater Sochi have been defined. According to the results of mathematical modeling in the software complex PLAXIS, applicability of using fiberglass dowels and its scope of application has been determined. Economic efficiency in comparison with the widely-used soil dowels Titanium has been herein estimated.According to the survey findings multiple landslide areas with surficial character of formation, which currently do not threaten the safety of human life, are identified. However, lack of timely measures on fixation of the above said slope areas may lead to the development of global deformations.
On studying the R&D support and the bridge structure monitoring
Authors: Fil O A , Kliuchnikova O V
Published: December 2019

This article discusses the scientific and technhical support of the engineering survey and design of unique buildings and structures at the time of construction. The R&D support aims at developing and implementing some new research approaches to collecting most accurate and reliable data that would both the prediction of the reliable future of the structure to be built and also save on construction costs. As an example, the authors offer a highways bridge at the town of Kamensk-Shakhtinsk on the M-4 "Don" federal highway. Bending moments at the design stage were determined by simulation using the SPIKA software, which enables, in a short time, to obtain the factual data on the structure, thus avoiding some outdated methods of inspecting building objects, thus facilitating the operations and shortening the time of diagnostics.
To a question of the setting of measures for culvert repair during technical inspection
Authors: Karpushko M O , Bartolomei I L , Karpushko E N
Published: December 2019

Culvert pipes are one of the largest categories of engineering structures on roads of both regional and federal significance. During operation, the structure is affected by static and dynamic loads, for example, from the weight of the dam and passing vehicles, temperature changes, melt, and rainwater is directly flowing through the pipe, streams and small rivers, as well as geological factors - earthquakes, shifts, and vibrations ground. Also, over time, the installed reinforced concrete sections of the conduit have a habit of shifting in horizontal and vertical directions under the influence of various kinds of loads, which leads to the formation of gaps and differences between them. Swings reduce the effective cross-section of the pipe, throughput, and lead to silting. Under flood conditions, the presence of discrepancies between the links of the tube leads to significant erosion, leaving voids in the dam, which is fraught with the collapse of the roadbed and road pavement, and in such situation, it is impossible to talk about the possibility of road operation as a whole. The traditional effective solution to this problem is culvert repair. Identifying the need for repair or reconstruction of the structure is the primary purpose of assessing the technical condition during the professional inspection of culverts.
The mini-ring intersections efficiency estimation at Volgograd street road network
Authors: Ovchintsev A M , Devyatov M M
Published: December 2019

The studies to evaluate the effectiveness of mini-circular intersections at the Volgograd street road network to improve traffic safety, which is achieved by eliminating the traffic flows intersection conflict points and reducing speed have been conducted.
Social, ecological and economic factors in evaluating the energy efficiency in housing construction
Authors: Shvydenko N V , Aksenov A A , Usatkina O I , Olatalo O A
Published: December 2019

Mass housing does not satisfy energy efficiency. This article proposes a system of social ecological economic factors in assessing the housing construction energy efficiency. A performance evaluation criteria list has been developed. This toolkit consists of 4 groups. The authors of the given work have made an attempt to develop an inventory for evaluating the energy efficiency projects. The social ecological economic factors are taken into account in opposition of other assessment systems. The housing construction projects evaluation is based on the costs spent during the building life cycle. This criterion can be considered by the construction investors when making the projects decisions.
Technological innovations in the proactive modernization strategy of a construction company (by the example of Tandem group of companies)
Authors: Gontar N V , Gaishun E S , Sapozhnikova A G
Published: December 2019

Significant positions of the construction industry in the economy of Russia and its regions, as well as a large number of people employed in the industry cause a great deal of attention to the modernization processes of construction companies. The article discusses the application of a proactive approach to the companies development in the construction industry. Using the example of the Tandem group of companies, the possibility and focus of a proactive modernization strategy for a company in the construction sector (with an emphasis on the innovations use, in particular, in the ceramic bricks production using new raw materials in the burning mechanism) is being considered, such strategy effectiveness in terms of economic results and strengthening its position in the markets of building materials is proved.
Features and prospects of the information technologies use in urban management (on the example of the city of Volgograd)
Authors: Baranova N
Published: December 2019

This article shows the modern information technologies role in city management. The basic prerequisites for the information technology development in Russian cities are described. The features of the information technologies use in the management of the city of Volgograd are shown, and also the prospects for the information technologies development for managing this city are described.
Economic and organizational mechanisms of forming business networks in the construction industry
Authors: Bondarenko S V , Takhumova O V
Published: December 2019

In recent times, emerging new types of economy have given rise to the changes in people’s attitude and behavior at different levels of their participation in business, which results in the economic effect of each industry in the market [1]. Society confidence depends on food security of the region and satisfactory living conditions, which determines the research of the construction industry development level and the search for the ways to decrease the cost of housing estate objects as the welfare factor of the population [2]. The article features the rating analysis of the country regions according to the volume of housing delivered as well as the leading real estate developers on the Russian territory. The dominant factors of the construction industry development are determined [3]. The model of the construction cluster of the region is suggested. The financial solvency analysis of the companies in the specified region is done on the basis of cluster organization applying Russian and foreign methodology. Moreover, the recommendations on improving the construction industry infrastructure and costs reduction in the industry are proposed.
Prospects for the development of regional investments in Russia based on the public-private partnership arrangement
Authors: Sagamonova G V , Shumeyko M V , Sagamonova E V
Published: December 2019

The aim of the study is to analyze the current state of development of regional and municipal investments in Russia on the basis of public-private partnership. This topic is particularly relevant, since in terms of the number of PPP projects, and in their volume, regional and municipal projects significantly dominate over federal ones. The article deals with the features of investment projects in different regions, their experience and the results of using PPP arrangements. It analyzes the main problems and gives recommendations on the main directions for the development of regional and municipal investments using PPPs.
Ecological and economic aspects of the waste management reform: the experience of the Rostov region
Authors: Ivanova D G , Ivanova O E , Sukhinin S A
Published: December 2019

The problems of the household garbage and industrial wastes utilization are currently central in the regions with a high concentration of population and production. This region in the South of Russia is the Rostov region. The industrial specialization of economy, intensive agriculture, the saturation of infrastructure facilities and high with a predominance of cities are the factors, causing the waste production and consumption large volumes formation in the Rostov region. Since 2018 the process of reforming the waste disposal system has been carried out in the Rostov region, as well as in other regions of Russia. Instead of landfills, where production and consumption wastes were simply stored and buried, the innovative technical and ecological chain, allowing the processing of garbage and recycling of waste, is being created in the region. The waste management reform involves the creation of 8 inter-municipal ecological waste-treatment complexes in the Rostov region, including solid household waste landfills, waste sorting plants, waste transfer stations and other infrastructure facilities for the waste management. At the same time, this reform faces a number of organizational, managerial, engineering, economic, environmental and socio-psychological problems. The essence and problems of the waste disposal system reform in the Rostov region, the reasons and possible ways of the decision the general assessment of efficiency of the developed scheme of utilization of waste a way of the solution of a problem of accumulation and removal of garbage in the region are considered in this article.
Evaluation of environmental safety of waterworks for urban water supply systems
Authors: Bondarenko V L , Khetsuriani E D , Ilyasov A I , Semenova E A
Published: December 2019

Basing on the results of long-term research of currently functioning and constructing of waterworks known as ‘activity objects’ (‘AO’) as parts of natural-technical systems (NTS) ‘natural medium – activity object – population’ (‘NM-AO-P’) limited by basin geosystems of Kuban, Lower Don and Terek rivers, in this article are presented the methodological basics of evaluation of level of environmental safety affected by functioning ‘AO’, forming in their impact areas space-time environmental state of NM (surface stratum of the atmosphere, waterbodies of hydrographic river system limited by the water-taking territory where the surface water discharge is formed; higher layers of the lithosphere where the underground water discharge is formed; soil surface with underlying layer),what influences all the processes of life activity of biota, fauna and health of local population.
Synthesis and characterization of Zn doped WO3 nanoparticles: photocatalytic, antifungal and antibacterial activities evaluation
Authors: Arshad M , Ehtisham-ul-Haque S , Bilal M , Ahmad N , Ahmad A , Abbas M , Nisar J , Khan M I , Nazir A , Ghaffar A , Iqbal M
Published: December 2019

In view of enhanced bioactivity and photocatalytic applications, the doped material has gained much attention and present study was focused on the preparation of Zn doped WO3 (Zn–d–WO3) via precipitation method. The prepared Zn–d–WO3 was characterized by Scanning Electron Microscopy (SEM), x-ray diffraction (XRD), Energy-dispersive x-ray (EDX). The effect of Zn concentration was studied on antibacterial, antifungal and photocatalytic activities along with structural and morphological variation. The Zn–d–WO3 was triclinic, spherical and rod shaped and particle size was decreased as the Zn concentration increased. The antimicrobial activity of Zn–d–WO3 was evaluated against a panel of bacterial strains (Escherichia coli, Pasturellamu ltocida, Bacillus subtilis, Staphylococcus aureus) and fungal strain (Aspergillus niger, Aspergillus flavus, Penicillium notatum). The Zn–d–WO3 showed promising antibacterial activity with minimum inhibitory concentration (MIC) values in the range of 211–387 (μg ml−1), whereas the antifungal activity was less than the standard (Fluconazole), which revealed that the Zn–d–WO3 are highly active against bacterial strains since activity was comparable with standard drug (Rifampicin). The photocatalytic activity (PCA) was evaluated by degrading methylene blue (MB) dye in an aqueous solution and dye degradation of 78% and 92% was achieved in 120 min under visible and UV irradiation, respectively. Results revealed that the Zn–d–WO3 could possibly be used as photocatalyst for the degradation of dyes in wastewater.
Photoionization model for streamer propagation mode change in simulation model for streamers in dielectric liquids
Authors: Madshaven I , Hestad OL , Unge M , Hjortstam O , Åstrand PO
Published: December 2019

Radiation is important for the propagation of streamers in dielectric liquids. Photoionization is a possibility, but the effect is difficult to differentiate from other contributions. In this work, we model radiation from the streamer head, causing photoionization when absorbed in the liquid. We find that photoionization is local in space (μm-scale). The radiation absorption cross section is modeled considering that the ionization potential (IP) is dependent on the electric field. The result is a steep increase in the ionization rate when the electric field reduces the IP below the energy of the first electronically excited state, which is interpreted as a possible mechanism for changing from slow to fast streamers. By combining a simulation model for slow streamers based on the avalanche mechanism with a change to fast mode based on a photoionization threshold for the electric field, we demonstrate how the conductivity of the streamer channel can be important for switching between slow and fast streamer propagation modes.
HHV-7 U21 exploits Golgi quality control carriers to reroute class I MHC molecules to lysosomes
Authors: Dirck Aaron T. , Whyte Melissa L. , Hudson Amy W.
Published: December 2019

U21 is a viral protein that forms hetero-oligomers with class I major histocompatibility complex molecules and reroutes them to lysosomes. It is shown that U21 exits from the Golgi in a distinct clathrin-independent carrier that also carries unfolded and aggregated proteins to lysosomes.
Calling for More Consistency, Refinement, and Critical Consideration in the Use of Syntactic Complexity Measures for Writing
Authors: Deng Yaochen , Lei Lei , Liu Dilin
Published: December 2019

In the past two decades, syntactic complexity measures (e.g. the length or number of words per clause/t-unit/sentences and number of clauses per t-unit/sentence, and types of clauses used) have been widely used to determine and benchmark language proficiency development in speaking and writing. (Norris and Ortega 2009; Lu 2011). However, the results of some recent studies (e.g. Lu 2011; Bulté and Housen 2014; Crossley and McNamara 2014) have raised questions about the earlier findings regarding the use of such complexity measures in assessing L2 writing. While a couple of plausible explanations have been proposed for the conflicting findings, they have failed to look at the syntactic measures themselves as likely sources causing the discrepancies in the research findings. In this forum piece, we would like to argue, with empirical evidence, that the conflicting research results might have resulted from issues with some of the existing measurements of clausal and phrasal sophistication, including inconsistency and lack of necessary fine-grained differentiation in the measurements of subordination sophistication and possible inappropriate use of high values of phrasal sophistication.
Neural Dedifferentiation across the Lifespan in the Motor and Somatosensory Systems
Authors: Cassady Kaitlin , Ruitenberg Marit F L , Reuter-Lorenz Patricia A , Tommerdahl Mark , Seidler Rachael D
Published: December 2019

Age-related declines in sensorimotor performance have been linked to dedifferentiation of neural representations (i.e., more widespread activity during task performance in older versus younger adults). However, it remains unclear whether changes in neural representations across the adult lifespan are related between the motor and somatosensory systems, and whether alterations in these representations are associated with age declines in motor and somatosensory performance. To investigate these issues, we collected functional magnetic resonance imaging and behavioral data while participants aged 19–76 years performed a visuomotor tapping task or received vibrotactile stimulation. Despite one finding indicative of compensatory mechanisms with older age, we generally observed that 1) older age was associated with greater activity and stronger positive connectivity within sensorimotor and LOC regions during both visuomotor and vibrotactile tasks; 2) increased activation and stronger positive connectivity were associated with worse performance; and 3) age differences in connectivity in the motor system correlated with those in the somatosensory system. Notwithstanding the difficulty of disentangling the relationships between age, brain, and behavioral measures, these results provide novel evidence for neural dedifferentiation across the adult lifespan in both motor and somatosensory systems and suggest that dedifferentiation in these two systems is related.