bluuebunny/crossref_metadata_2025 huggingface dataset:
Macroeconomic aspects of maintenance optimization of critical infrastructures
Authors: Timashev S A , Bushinskaya A V
Published: November 2020

The main goal of maintenance is prevention, timely detection and elimination of failures and damage. From the point of view of critical infrastructures (CIs), the main purpose of their maintenance is to increase the safety of CIs and / or to ensure life safety. CIs should be optimal in terms of their purpose, cost, as a source of income and profit at all stages of their life cycle, and also acceptable in terms of possible loss of human lives or injuries. The paper considers the assessment of necessary optimal investments in the maintenance (time interval between subsequent maintenance), to increase the safety of life, the so-called life saving costs. The problem of limiting the threat to human life is as follows: “how much money is society ready and able to spend to reduce the likelihood of premature death”. A quantitative criterion of risk acceptance is used, in which the marginal cost of life saving is compared with social willingness to pay. This value is determined using the life quality index of population.
Investigation of thermal characteristics of multitubial thermosyphon heat-exchangers
Authors: Yakovlev L O , Klimova V A , Shcheklein S E
Published: November 2020

Prospects of application and advantages of heat-exchangers based on sealed two-phase thermosyphons are compared with analogies of alternative widespread designs. Theoretical limitations of heat transfer are considered. Experimental facility requirements were formulated. Heat transfer coefficients obtained by calculation, computer simulation and in experiments.
Evolution of the Safety of Fast Neutron Reactors
Authors: Oshkanov N N , Shcheklein S E
Published: November 2020

In its history, fast neutron reactors (BR) have gone through a long evolutionary period. However in general, BRs have gone the way of the evolutionary development. The function of retention radioactivity in case of an accident was performed by BRs safety vessels. For protection against external influences, new BR projects must be constructed containments. In the function of the reactor core cooling, changes have occurred related to the transition of the emergency cooling from the water circuit to the intermediate sodium circuit. Developments in emergency cooling systems are associated with the placement of an emergency heat exchanger inside the reactor, and the use of natural circulation in sodium and air. In the function on reactivity controlling due to the increase in core sizes, difficulties arise with the suppression of positive reactivity caused by sodium void reactivity effect. Therefore, in BR projects, the use of sodium plenum over the fuel part of the core and / or use of heterogeneous cores are needed. With an increase in the core sizes, the risk of jamming the long shifts of emergency rods increases. Therefore, it is advisable to transfer the safety rods to the hydraulic suspension in a sodium stream.
Heaving Pressure Occurring at Frost Penetration in the Clay Soil in Confined Space
Authors: Kim Vyacheslav , Kim Marina , Kim Michael
Published: November 2020

The article describes the results of laboratory studies of the frost heaving pressure development at the clay soil freezing in confined space. Intensive construction of industrial and civil buildings in the North and North-East of Russia determines the relevance of research on the topic. The conducted studies allowed us to reveal the peculiarities of frost heaving pressure development, depending on the temperature conditions and physical properties of the clay soil, as well as possible heave deformations. The paper gives dependence of frost heaving pressure development during one-sided and uniform frost penetration in confined space on the degree of its water saturation, temperature conditions and possible deformations. It was revealed that in sandy soils, the formation of frost heaving pressure is caused by the freezing of free (gravitational) water and can be determined by the Bridgman-Tammann formula. In clay soils, the development of frost heaving pressure is associated with the freezing of loosely-bound (film) water and can be determined by the method that we propose both in the absence and in the presence of heaving volumetric deformation. The experimental technique that we offer makes it possible to analyze the development of the frost heaving pressure of the clay soil when it freezes in confined space.
The analysis of computer aided methods applied for pit wall stability rating
Authors: Koltsov P V , Ivanov Y S , Pykhteeva N P
Published: November 2020

A comparative analysis of the results of the pit slope stability rating carried out under normative technique and Scad Office Slope application is presented. The possibility of combination of normative technique and computerized calculations to gain integrity and computation operability is suggested.
Lateral-Torsional Buckling Behaviour of Triangularly Tapered Corrugated Web Beam
Authors: Franco Andres Camilo Amaya , Kudryavtsev Sergey
Published: November 2020

This paper presents a study of the behaviour of Lateral-Torsional Buckling (LTB) that is one of the common failure modes of large span beams. LTB for non-prismatic I-beams still needs more investigations, due to its sophisticated formulation for cross-section properties. This paper presents the results of numerical (Finite Element Software ABAQUS) and theoretical analysis for LTB of a simply supported I-beam with triangularly tapered corrugated web under concentrated loads. The corrugation densities adopted in this study represent the most commonly used types for such structures in practice of construction. For numerical analysis, the formulas were adopted from the case of a trapezoidal corrugated web, which is successfully verified by different authors. Recommendations of this study are given for simply supported tapered triangularly corrugated web at lateral torsional buckling.
About actual contradiction in geotechnical design and optimal way of it resolution
Authors: Alekhin A N , Alekhin A A , Alekhin V N
Published: November 2020

The paper describes serious and fundamental contradiction in geotechnical design, which manifested itself to the greatest extent when designing the foundations of high-rise buildings in the third quarter of the 20th century has begun to form from the late of the 19th century to the 20th years of the 20th century. Prime cause of this contradiction is in complex physical structure of soils, complex nature of their formation and, therefore, in complex form of their deformation. The article also notes the high technical and economic efficiency of using realistic physically nonlinear soil models in the design of geotechnical parts of buildings and structures. In this case such a designing is most effective when using the parameters of nonlinear models determined from data of in-situ tests.
The Formation of a Comfortable Urban Environment
Authors: Kondrat’eva L N , Stepanova N R , Bochkov P V
Published: November 2020

The concept of “smart city” and the need to follow this direction in the light of current trends, so as not to miss the chance to improve life in cities. The development and improvement of cities allows humanity to reach a new level in the quality of life and intellectual development. Hence, the population has more prospects to change the surrounding life and their personal. The article reflects the main ideas in the formation of a comfortable urban environment, their relationship and impact on a favorable social climate. The scenario algorithm of practical action for the active citizen on determination of the direction of improvement of comfort of the city environment, establishment of communications of objects of infrastructure of the city environment, Association of the used methods of changes in the concept is offered. The results of the project “;Formation of a comfortable urban environment” on the example of the Sverdlovsk region. The stages of organizational procedures are analyzed, the data of analysts are analyzed, conclusions are drawn about the need to involve citizens in the implementation of projects initiated by citizens.
Suitability of map data for processing of pedestrian analysis questionnaire in small towns
Authors: Kramářová Z
Published: November 2020

From a historical point of view, pedestrian movement is the oldest way one moves from place to place. It is a basic, most natural and environmentally friendly means of transport, which is unattractive for many individuals in terms of today’s trends. Walking is absolutely indispensable for the creation of cities, especially their public space, as it alone allows people to interact with their surroundings. Public space in cities is an essential element that ensures the existence of a settlement, its life and the life of its inhabitants. If we consider as a premise the fact that cities are created for people’s living, public space fulfills the functions of socializing, communicating, passing, etc. - that is, a function that supports the community of society. The analysis of the permeability of settlements, especially of small towns, is one of the most important documents for the creation and regeneration of the public space. A questionnaire survey is one of the methods for its quality processing, which is most easily done by plotting the map. Choosing a suitable map background that is sufficiently understandable to the general public is the first prerequisite to obtain quality data for this analysis.
Analysis of the motivation of the residents of Saransk for the transition to the use of “smart bikes”
Authors: Maryonkin A V , Razumov A V
Published: November 2020

This article aims to analyze the main motives of using a bicycle as sustainable public transport. Consider the prerequisites for the introduction of “smart transport” for the territory of Saransk. More than 1000 citizens took part in the survey. The majority of respondents stated low satisfaction with the bicycle infrastructure, but are interested in the implementation of the “smart bike” system in the vicinity of the city. The analysis provides an understanding that residents are concerned about environmental issues, affordable transport and personal health. That speaks about the high potential of development of this system in the city of Saransk.
The Use of Municipal Solid Waste as Secondary Energy Resources on the example of the Housing Complex Novopatrushevo, Tyumen
Authors: Afonin K V , Zhilina T S , Zagorskaya A A , Pavlova M N , Shchekin A N
Published: November 2020

The article considers the feasibility of using biomethane, obtained on the basis of municipal solid waste (MSW) for the production of thermal energy. Research suggests the possibility of using biogas directly at the place of generation. The article also proposes a solution for the processing of numerous sludge of household waste water, which allows to improve the operating conditions of domestic sewage networks. The authors carry out detailed calculations for a residential complex under construction in the city of Tyumen. This paper determines the energy efficiency of a selected waste management scheme.
Alternative Energy Sources in Resolving Environmental Problems and Providing Safety of Single-Industry Towns
Authors: Permyakov M B , Krasnova T V
Published: November 2020

Environmental protection and reasonable use of natural resources stipulates for shaping consumer culture correcting the way of life of a modern society in compliance with the environmental requirements of modern life. It is necessary to introduce the measures efficiently regulating economic activity and orienting it towards environmentally correct forms. It is generally known that the key factor of the further civilization development is an efficient use of energy sources. In this connection, a reasonable way of developing national economy is the replacement of traditional “non-renewable” energy sources by alternative ones. The way of the economic development is the search for new ways of providing the national economy with a sufficient amount of energy with a corresponding reduction of the general volume of its use.
Energy Efficiency Increasing of Premises through Type of Illuminating Lamps
Authors: Ivanov Y A , Morozov A Y , Malyar E A , Ovchinnikova E V
Published: November 2020

The study is considered issues of energy efficiency improving of exhibit and other halls with a large number of people. In such cases maintenance of required parameters of intensity of illumination is accompanied by heat emissions from the lighting, constituting significant part of the total heat gain in the room that increases load on the system of microclimate maintenance. By the example of an exhibit hall in a multifunctional complex it is shown that replacement of incandescent lamps for energy-saving lamps allows to reduce energy consumptions for lighting and also capital and operating expenses on the microclimate control systems. At the same time, temperature and humidity conditions and air velocity are supported, optimal conditions for staff, equipment and machinery are created.
Features of the calculation of heat losses through the filling of window openings
Authors: Sukhov A D , Ushakov M G
Published: November 2020

The article is devoted to the calculation of heat losses through the filling of a horse aperture. The scheme of formation of the “cold bridge” through the filling of the window opening was presented. Two window designs were calculated and analysed using numerical simulation. It was calculated to reduce the cost of the project by changing the constructive solution. The article examined various ways to take into account the position of the window opening when calculating heat losses. A formula was proposed for the correct calculation of heat losses through the filling of a window opening. Separately highlighted issues that need to be considered in further research.
Assessment of pollutants discharges and air pollution in the Tyumen region (without considering autonomous districts) and its urban districts
Authors: Sapega V A
Published: November 2020

The article provides an analysis of pollutants discharges in the Tyumen region, in the Tyumen region without considering autonomous districts, and in its urban districts for the period of 2013-2017. The researcher compares the number of stationary emission sources throughout the Tyumen region in 2017 and in 2013. The increasing amount of pollutants discharges has also been ranged from the Tyumen region (129083 tons) to its urban districts, namely Tyumen (16890 tons), Tobolsk (13723 tons). The decrease in emissions was noted in Ishim and Yalutorovsk in 2017 compared to 2013. It has been determined that the total amount of discharges in urban areas contained the average portion of solid discharge up to 5.0%, and of gaseous and liquid discharges up to 95.0%. Carbon monoxide and hydrocarbons (without VOCs) prevailed among gaseous emissions in the Tyumen region without considering autonomous districts (29.1 and 26.1% of all gaseous emissions respectively). Testing revealed the increase in the number of trapped and neutralized pollutants in the Tyumen region without considering autonomous districts and including urban districts in 2017 compared to 2013. In the analyzed period, the atmosphere in Tyumen and Tobolsk was characterized as slightly polluted.
Development of the energy efficient residential low-rise house concept for the Ural region
Authors: Vasileva D A , Nikitina N P
Published: November 2020

In the article the problem of energy-efficient construction in Russia is considered. The energy-saving technologies and renewable energy sources acceptable in construction in the Ural region analysis is carried out. Main reasons of the irrational consumption of thermal energy are highlighted and the strategy of the energy-efficient construction development in the Urals is described. As a result of the research, a conceptual project of an individual residential house was developed.
Solving problem of airflow in the open air space in double pitched roofs of passive objects with concrete cover
Authors: Plachy J , Šál J
Published: November 2020

The paper deals with air flow in open air gap in pitched roofs with folded roofing. The sloping roof is thermally insulated to the passive standard. Double-skinned roofs work with the drainage of moisture from the air gap based on the difference in water vapor pressure that is generated by the warming of the air gap. Moisture removal is suppressed due to the large thickness of the thermal insulation. The paper compares experimentally measured values with values obtained by calculation using the appropriate computer software. For experimental verification of the air flow, a model of the roof cladding was constructed, on which air flow in the air gap was verified. There was no air flow on the roof model. In the theoretical calculation the flow occurred.
Defining the Principles of Organic Shaping while Classifying Organic Architecture
Authors: Bystrova T Y
Published: November 2020

The creation of organic forms brings architectural objects closer to the organization and needs of a human being. With all the variety of design approaches, it is possible to identify the basic principles of organic shaping, helping to avoid superficial “mimetic” solutions. Classification of approaches of organic shaping in the architecture of the 19thȁ21st centuries provides a complete analysis of the material necessary to derive such principles, as well as the conceptual one-sidedness, in which one possible solution is prioritized. Developed by the author tables help to master a wide range of areas and approaches of organic architecture.
Improving the calculation of the cost of the construction project using BIM technology
Authors: Belyakov V A , Salnikov V B , Galiakhmetov R T
Published: November 2020

In the scientific article the authors summarize the results of theoretical research and practical implementation in the design of residential and public buildings BIM – information modeling technology. The questions of application of digital models for control of financial expenses at all stages of project implementation in construction are considered. An attempt is made to harmonize BIM technology with the Comsol Multiphysics software package. A review of existing studies on this issue in Europe, Asia, the United States and Russia. With the participation of the authors of the article developed a set of specialized families for the system Autodesk Revit, which allow you to perform a comprehensive preliminary study of the construction site of residential buildings. The approach providing increase of efficiency of determination of estimated cost of works on construction of object of construction based on several generalized principles is offered. This innovative approach has been tested in the design of several large construction projects in the Ural region of Russia, implemented in 2017-2019.
Application of effective concrete composites to increase radiation protection of residential areas
Authors: Rudnov V S , Belyakov V A
Published: November 2020

The scientific article presents the analysis of studies of radiation safety of residential buildings in the city of Yekaterinburg, Sverdlovsk region and the results of the development of new building materials with protective properties. The review of available statistical data on the specified subject is carried out. It is revealed that the most simple and economically justified method of increasing the protection of the population from the radiation impact of man-made or natural environment is the construction of buildings with the use of innovative building materials or reconstruction of existing ones with the use of heavy concrete with effective radiation-protective aggregates.
Bochkarihinskoe clay as raw material to building ceramics production
Authors: Pavlovets A Yu , Pavlova I A , Farafontova E P
Published: November 2020

The possibility of using clay from Bochkarikhinskoe deposit (Sverdlovskaya oblast, Russia) in the ceramic building production has been considered. The chemical, mineral and granulometric composition of clay was determined. The basic technological properties of clay were studied: plasticity, sensitivity to drying, sintering. The frost resistance and mechanical properties of ceramic brick samples were determined. The clay studied with introduction of organic additives also may be used in ceramic production.
Fractal analysis of tensile deformation curves of epoxy polymers based on modified epoxy binders
Authors: Nizina T A , Nizin D R , Artamonov D A , Kanaeva N S
Published: November 2020

The paper proposes an approach to study the mechanism of deformation of epoxy polymers based on the methods of fractal calculations. The advantages of the method for determining the fractality index of the deformation curves of polymer samples using the minimum coverage method are shown. An algorithm for the quantitative determination of the location of the “critical” points of the deformation curves of polymer samples under tension is proposed. It is shown that the use of the developed methodology for the fractal analysis of time series on the basis of a set of points of deformation curves of epoxy polymer samples under tension, provides valuable information about the processes occurring in the structure of composite materials affected by mechanical loads and various aggressive factors.
Construction Materials with Tailings of Quartzite Enrichment
Authors: Kapustin F L , Ponomarenko A A , Gorohovskiy A M , Ponomarenko Z G
Published: November 2020

The composition and properties of the tailings of quartzite enrichment of “Gora Karaul’naya” deposit, the possibility of its using as an aggregate in the composition of heavy and fine-aggregate concrete and dry construction mixture were determined. The introduction of quartzite tailings increases the water demand of the mixture, reduces the compressive strength of concrete and mortar, increases the bending strength compared to quartz sand.
Optimization of the Strength Characteristics of the Cellular Structure in Samples of Thermoplastic Polyester
Authors: Erofeev V T , Elchishcheva T F , Preobrazhenskaya E M , Makarchuk M V , Afonin V V
Published: November 2020

When making a prototype during design in industrial design, specialists use the data on the strength characteristics of filaments for extrusion provided by the manufacturer of equipment for FDM printing. It is likely that the strength characteristics of the product may deviate from the characteristics of the threads. The authors suggested that the samples of the cellular structure made on 3D printers from polylactide with an internal volume filling of 10% with the filament laying direction according to the standard settings of the equipment manufacturer during the experimental determination of strength characteristics will demonstrate values several times lower than the samples with filling the cell volume with polylactide by 100% and having in their geometry the same direction of laying the extrudable material. To confirm the hypothesis put forward by the authors, a study was carried out of the characteristics of products made of polylactide using the FDM printing method. A comparison is made of the relative change in some parameters of the samples (mass, elongation, and the force used to break the samples), the two devices for growing prototypes – 3D printers MakerBotReplicator 5 Gen and MakerBotReplicator Z18 in percentage terms. Recommendations are given on the optimal operation of equipment for 3D printing, depending on the goals set by the user. The results can be used to select equipment for printing and sample production technology, cell filling density and amount of material when creating a prototype using the additive method in industrial design.
Carbonate-Quartz Cement Composites
Authors: Erofeeva V , Emelyanov D V , Bushes M A S , Balatkhanova E M , Nadorov S V , Bogdanov A S , Efremov P A
Published: November 2020

The technology of obtaining multicomponent high-quality concrete using limestone powders as fillers is considered. In order to select fillers for powder-activated concrete, a study was made of the water absorption of limestone gravel of various kinds. According to the water absorption index, eight categories of limestone species have been identified. It was revealed that organogenic limestone is one of the materials that is preferred as a filler for high-quality concrete. The experimental results were obtained and graphical dependences of changes in the tensile strength under bending and compression, the dynamic modulus of elasticity and water demand of organogenic cement composites filled with limestone from granulometric composition and filler content were constructed. It has been established that the best strength properties are manifested in materials with optimal indicators of the content and size of limestone and silica powder.
Theoretical and methodological approaches to management of resource flow processes of development projects on macro-, mezzo-, microlevels
Authors: Platonov A , Larionova V , Davy Y , Bazhenov S
Published: November 2020

Paper is devoted to the actual problem of managing resource flows of development projects as complex, unique, and open systems, across the different project lifecycle stages that differ in content and are distributed in space and time. The idea was to create a single throughout system for managing resource flow processes of the long-term projects. The research goal included development of theoretical and methodological approaches that can be used in order to manage the combination of development project resource flows using “order from chaos” paradigm. That includes by-stage organization of resource flow processes on of macro-, meso- and microscale, going from sources and sinks of the chaotic project environment resolve to ordered stages of project life cycles. It is proposed to implement resource flow management in form of the stage and resource-based “project-logistic” relay of a triune movement, ordering and transformation of the resource flow processes. This relay is created within a project-logistic field of project management that change by project phases. Synergetic effects of self-organization and self-control appear in the project logistic field due to horizontal interactions, sharing experience, competences, and values among the stakeholders in course of transforming entropic resource-flow processes into the negentropy processes related to project phase goals (attractors). Results can be used to forecast and develop multilevel resource-flow and process systems arranged by resource sources and sinks, and chaotically ordered for projects in different application areas. Further research perspectives include development of self-control and self-organization forms for development projects stakeholders that would comply with international best practices, and fit corresponding project stages.
Building of effective management structures based on the digital technologies in the mining industry. A case study of UC RUSAL
Authors: Prokofeva E N , Vostrikov A V , Stebenev A Y , Volchkov D M , Agasandyan B L
Published: November 2020

The most competitive in the current global market and defining the economy of the country persists products of extractive industries. According to this reason precisely this direction requires effective management, continuously connected with advanced technologies. Developing enterprises not only are able to impact the situation in the mining industry but to reform the economy situation in general. Changing external environment produces up-to-date demands on planning based on calculated predictive values, and creates the possibility of increasing the competitiveness of the organization. One can’t help underestimating the importance of integrating quality management system to any modern company, as it determines further ways of its prospects.
Energy management strategy in the construction industry
Authors: Prokhorov S
Published: November 2020

Saving energy resources is the first priority of the world community. In modern society, construction industry has a huge impact on the economic, social and technological environment of human life. New architectural forms and concepts are emerging, building materials and technologies are improving, environmental friendliness and friendliness of buildings to the surrounding nature increases. Currently, issues related to improvement of the economy’s energy efficiency are attracting everyone’s attention. Projects of energy-saving and energy-active houses are becoming increasingly popular. Existing construction regulations originate in the 70-90s of the last century, and do not reflect modern reality. Another important aspect of the introduction of modern technology is the environmental pressure during construction and installation works. It raises a question about the need to develop economically and technically sound standards in the design and organization of construction, compliance with which would be monitored not only at the stage of project documentation, but also during the building process. The study addressed the issues of energy consumption reduction at the construction design and maintenance stages, during building and installation works, as well as in sanitary, technical and material support of construction production.
Experimental and calculated testing of the efficiency of cyclone filtering devices
Authors: Belyaeva G I , Zamalieva A T , Ziganshin M G
Published: November 2020

The aim of the study is to identify ways to improve the efficiency, reliability of the dust collection process and improve the aerodynamic properties of cyclone apparatuses in the gas cleaning unit. The analysis of existing methods of cyclone filtration of fuel gases is carried out. Bench tests of a cyclone filter based on the serial cyclone CN-11-200 were made, and the aerodynamic characteristics of its operation were found. The efficiency of the use of multi-cyclone apparatus, the elements of which combine both stages of cleaning, are also analyzed. The problem of finding the optimal location in the apparatus of cyclone elements with semi-tangential inlet nozzles are solved. A numerical model of a multi-cyclone is created and several options for the arrangement of elements are considered. The most effective location is determined taking into account the overall hydraulic resistance of the device. The numerical model also made it possible to evaluate the influence of various factors on the dust sedimentation efficiency in the developed cleaning device.
Modern Air-Conditioning Systems without Wiring Duct
Authors: Shiryaeva N P , Malyar E A , Ustyantsev P V
Published: November 2020

The calculation involved in the design of integrated heat-hydraulic air-conditioning system in which air is supplied through the raised floor was presented. Calculations were made using the premises of an office building in Yekaterinburg, Russia. Raised floor in the current study was presented in the form of a channel with a concrete wall on one side and chipboard -on the other. It has been successfully established that the loss of pressure during air movement in the raised floor space is minimal, this was suggested as a result of the possible uniformity in air supply to the air distributors. It was also demonstrated that due to transmission losses through the walls of the raised floor, the cooling capacity of the air conditioning system was significantly reduced (up to 15%). Following the results obtained, conclusions were drawn about the main features of such systems.
Modelling and monitoring of security unique underground structures of the sewerage system of major towns in difficult ground conditions
Authors: Perminov N A
Published: November 2020

On the basis of many years of experience in the construction, reconstruction and operation of underground engineering infrastructure of the metropolis developed the concept and philosophy of the creation and operation of Geomonitoring security system of the tunnel collector. The philosophy of construction of space-time structure of Geomonitoring is described. The article presents the experience of modeling, monitoring and taking protective measures aimed at ensuring the safety of tunnel reservoirs located in the area exposed to the geotechnical effects of underground and high-rise construction. The analysis of calculation and experimental data and the results of long-term monitoring aimed at ensuring the safety of underground drainage and treatment facilities of megepolis. The special protection against technogenic influence is required for long-operated tunnel sewage collectors. This paper, based on the extensive data of studying the work of the tunnel collectors in conditions of soft soils and intense technogenic influences, describes new methods of diagnosing, the features of defects, and the results of modeling joint interaction of the “tunnel – soil bulk” as well as experimental data on experimental objects. The geotechnical methods for protecting the long-operated tunnel collectors have been developed, and there has been given the unique experience of their application in the objects of St. Petersburg together with their monitoring support.
Variable boundary conditions for solving the problem of dispersed flow moving
Authors: Paramonov A , Mostovenko L
Published: November 2020

The paper presents comparing the results of numerical and full-scale experiments which conducted on an inertial-vacuum dust collector (IVDC). In September 2018, a full-scale experiment was held at the Omsk heat power station №4, it was allowed to verify the calculated data in ANSYS CFX. The boundary conditions were corrected after the initial calculations on IVDC of second generation. The results of numerical experiments, that conducted earlier, were corrected. In article it is spoken in detail about comparison of the dependences of the individual elements heights and their influence on the installation collection efficiency.
The Heating System Capacity Calculation of the Cultivation Facilities
Authors: Shiryaeva N , Mitroshina O , Kharkova N
Published: November 2020

The article is devoted to the heating system capacity calculation of the cultivation facility, based on the conditions for ensuring the microclimate parameters regulated by the standards of technological design, depending on the external climatic conditions and the facility design parameters. One of the distinguishing features of the heating system capacity calculation of greenhouses is that the heat balance equation of the structure must be considered together with the equations of heat and mass transfer on the soil and covering constructions. The calculation is made for the greenhouse block № 3 in The Greenhouse Complex with a production area about 12 ha in the village of Sadovy, Ordzhonikidze District, Ekaterinburg. It takes into account convective and radiant heat exchange between the soil and the covering constructions, heat and mass exchange during evaporation and condensation and heat loss for heating infiltrating air.
Comprehensive methods to obtain and process information flows in centralized heat supply systems
Authors: Sagynganova I K , Kvasov A I , Kalinin A A
Published: November 2020

The article discusses the principles of creating the structures of information and control systems for urban heat supply. The necessity to create and develop such systems is due to the significant energy intensity of the country’s GDP, which is twice as large as the majority of developed countries. Modern multi-level distributed control systems of the centralized heat supply system facilities, which are built according to the object rule, are described in the paper. The article analyses advantages and disadvantages of various options for information management systems. In the process of thermal automatics development based on software and hardware, including modern intelligent sensors and industrial controllers, modern thermal automation systems began to be intensively introduced. The use of standard techniques of cycling poll of all local objects included in the centralized heating systems, without taking into account the dynamic characteristics of the measured parameters, including the pipeline processing of this information, leads to a significant increase in the time of collection, processing, transmission of information and decision-making in a centralized heating systems. The concept of measuring and processing information in centralized heat supply systems is proposed, based on variable polling cycles of parameters of heat supply systems at heat points taking into account their dynamic characteristics with subsequent conveyor processing of information at the top level of automated centralized heating systems.
Method of assessment of the accidental leakage of trunk the pipeline in the winter
Authors: Chelombitko S I
Published: November 2020

Some features of emergency leaks from oil trunk pipelines in winter, when there is snow cover, are considered. The increase in the intensity of accidents and the scale of oil spills in the Northern regions are of concern to both the public and scientists, who are increasingly calling what is happening an environmental disaster. According to various estimates, the rivers of Western and Eastern Siberia annually carry 0.7 to 2 million tons of oil into the sea, and lists of rivers where MPC of pollutants are several times higher than permissible. The same applies to large rivers in their lower reaches, there was a sharp decline in valuable species of fish in their places of historical mass habitat. In rivers and streams that feed them oil products fall primarily with floodwater and sewage. According to the normative documents, the localization (limitation) of the oil slick in winter is carried out by compacting snow, and the first stage of reclamation of oil-contaminated territories (mechanical) involves plowing and harrowing, i.e. the beginning of restoration work is possible after thawing of the soil. This leads to the fact that after the snow melts, the remaining oil after the collection together with flood waters rushes into streams, rivers and other reservoirs. The remaining oil on the surface of the day or seeps into the soil, or after plowing is filtered into the ground with rain and melt water, polluting groundwater. It is established that oil-contaminated mosses and lichens die, vegetation cover with meadow grasses is restored in more than 15-20 years. Therefore, studies that make it possible to realistically assess the consequences of accidental oil spills and to compensate for the damage caused to nature are important and relevant. The proposed method of estimating the amount of spilled oil in winter is based only on the results of a survey of the contaminated area and does not concern either the causes of the accident or the parameters determining the formation of an oil slick, which may be inaccessible or distorted for certain purposes.
Bio-WTiP: Biology lesson in handheld augmented reality application using tangible interaction
Authors: Yusof C S , Amri N L S , Ismail A W
Published: November 2020

Augmented Reality (AR) is a combination of objects of both real and virtual that partially merged into a single environment. In the education field, the process of teaching and learning can be more interesting with the engagement of AR as aided learning tools during classes. However, the remaining problems are, Biology was one of the subjects that hard for students to easily understand such as learning water transport in the plant. The use of touchscreen in handheld interaction is limited due to screen size for user to use in handheld AR interaction for 3D object manipulation. Therefore, this project aims to develop a Biology lesson handheld AR application using tangible interaction (Bio-WTiP AR). There are three phases that have been carried out, which are AR feature-based tracking, integrate Biology application with tangible interaction in handheld AR and evaluation. The testing and evaluation have been performed based on usability and user acceptance. The results show the application has been accepted by the users as the users found it is interesting to learn the process of water transport in the plant on hand. Based on the results, this project has successfully produced a Bio-WTiP application that can enhance the users learning process at once gave users experience in AR.
A mobile game SDK for remote collaborative between two users in augmented and virtual reality
Authors: Ong Y H , Ismail A W , Iahad N A. , Rameli M R M , Dollah R
Published: November 2020

Remote collaboration is important in Augmented Reality (AR) and Virtual Reality (VR) that allow users to communicate and interact with each other. Mobile games are gaining its popularity due to its portability and lower in cost. Software Development Kit (SDK) allows developer to speed up the development process. However, most of the collaboration of these technologies only focus on either AR or VR independently. Besides, most AR and VR that had been developed are only available in expensive devices but not in mobile devices. Therefore, this research aims to create a remote collaboration between AR and VR with mobile games. There are four phases have been carried out, analysis phases, development phase, construction phase and evaluation phase. The evaluation has been performed and it is based on the usability and user acceptance. The usability results show the application is accepted by the user. User acceptance results show the application works accordingly. Based on the results, this research has successfully produced a working SDK for remote collaboration between AR and VR with mobile games.
3D telepresence for remote collaboration in extended reality (xR) application
Authors: Fadzli F E , Kamson M S , Ismail A W , Aladin M Y F
Published: November 2020

Extended Reality (xR) encapsulates various computer-altered reality technologies that cover virtual reality (VR), augmented reality (AR), and mixed reality (MR). xR is a technology that merges a virtual element into the real-world with the aims to enhance reality on the virtual world immerse onto real-world space. xR has been improved from time to time as the advanced immersive technologies to extend the reality we experience by either combining the virtual and real worlds or by generating a fully immersive experience. Remote collaboration in xR is a challenge since both parties need to have the same system and to set to parallel to xR environments. In a collaborative interface context, the user can be in a remote collaboration or face-to-face to sense the immersive environment. Human teleportation is transferring a human from a local location to a remote location, where the reconstruction of a human appears in a realistic visual representation. However, creating a fully realistic representation of the human figure need a complex 3D reconstruction method. Therefore, the paper describes the human teleportation in the xR environment using the advanced RGB-D sensor devices. It explains the phases to develop the real human teleportation in xR. The paper also discusses the proposed collaborative xR system that has successfully actualized the user teleportation.
Needs analysis for the development of interactive virtual reality-based educational media on combustion engine mechanical technology
Authors: Sutiman  , Yudantoko A , Yudianto A , Solikin M , Adiyasa I W , Suaib N M , Sholichin F , Irawati D A
Published: November 2020

Needs analysis is the first and necessary step for the researchers to design a newly developed learning media to find out a set of specific requirements to conduct the research activities. The study aims (1) to investigate the user’s learning preference, (2) to select the suitable learning materials and to choose the appropriate type of engines, and (3) to identify the needs for the virtual reality development. A focus group discussion (FGD) comprising some representative users and experts in learning media has been involved in the activities with the use of the FGD guidance sheet as the supplementary tools. Additionally, the literature study has also been conducted to collect the necessary additional data to perform a 3D design of the engine. The data were analyzed qualitatively by examining the comment from the users, the experts, and the outcome of the literature review study. It was then concluded that (1) the users require the learning process, which does not need to alternate the learning objects. (2) The two-stroke single-cylinder engine was decided to choose by considering the complexity of the engine mechanical construction. Finally, (3) the needs for engine assembly drawing and virtual reality development have also been described.
Cultural heritage preservation efforts in Malaysia: A survey
Authors: Suaib N M , Ismail N A F , Sadimon S , Yunos Z Mohd
Published: November 2020

Malaysia, just like its neighbouring countries in the region, has a rich and diverse culture and heritage treasures. What makes Malaysia more unique is its diversity as a multi-racial and multicultural country. These cultural heritages might become lost and extinct without any efforts in preserving and safeguarding due to modernization, assimilation, and globalization. We present an overview of different cultural heritage in Malaysia and available efforts to preserve these treasures found from literature. Digital preservation efforts that computer graphics, media scientists and practitioners could offer as alternatives in preservation of culture and heritage preservation will also be included in this paper.
AR-TO-KID: A speech-enabled augmented reality to engage preschool children in pronunciation learning
Authors: Aladin M Y F , Ismail A W , Salam M S H , Kumoi R , Ali A F
Published: November 2020

AR-TO-KID is an application produced for preschool children between ages five to six years old with an Augmented Reality (AR) application. The significant purpose of AR-TO-KID is to improve the pronunciation of the children in English. Hence, this paper discusses an AR application with speech input. The detection of the children speech input when they need to pronounce the words correctly, and they need to have critical thinking to identify the environment suit with the 3D objects that they will utter the word. Educational technology should be interactive and attractive for 5 to 6 years old preschool children learning; however, some at preschool teachers still used the conventional methods in teaching and children are not fully engaged with the method. Therefore, this project is to design and develop an interactive AR tool called AR-TO-KID for preschool children in pronunciation learning and teaching. This paper presents the evaluation and testing for preschool children with non-native English speaking. The article ends with results and discussion.
Educational science game for early primary school
Authors: Latif A H A , Rahim M S M , Ismail A W , Suaib N M , Aladin M Y F , Nor’a M N A
Published: November 2020

Learning is a process to extend the knowledge, but learning science helps to understand the world. Science education is important due to the relevance in human’s lives and the universally applicable problem-solving and critical thinking skills it uses and develops. It is a foundation of education for student. When it comes to student, science education gives them the skills and knowledge that are required for their problem solving and critical skills. Science is the best subject that can be learn by experimenting and experiencing. Nowadays, technology had taken part in many domains. Same goes to education, technology had contributed many improvements to make the learning process more attractive. Hence, in this modern era, the implementation of video games in education can be the effective way for student to learn while having fun in learning. Therefore, this project aims to develop a science game for student to play while experiencing the new method of learning process. The game is developed by using Unity 3D game engine.