The article proposes the concept of mobile Internet service based on a combination of the functionality of applications – aggregators of discounts and navigation applications with GIS technologies. The new application allows a potential buyer to make a list of necessary products, as well as a list of stores where he can buy them at the lowest prices, indicating the routes, time spent and money. The user can choose the most appropriate scenario from the proposed (minimum money, minimum time, the best option). It takes into account the characteristics of the buyer, its financial and transport capabilities, the required list of products, the available variety of stores, factors of attractiveness of stores (prestige, convenience, level of service, availability of Parking, etc.) Mathematical implementation of the service – optimization on graphs (search for the shortest path taking into account restrictions) and simulation of the behavior of customer flows when prices or store locations change.

Keywords: crisis, cheap goods, promotions, discounts, mobile application, discount aggregator, price navigator, GIS technology, optimization

A systematic analysis of the trends in the development of the electric transport industry has been carried out. Revealed a significant increase in sales of electric vehicles. On the basis of the analysis formed the advantages and disadvantages of its application. Particular attention is paid to the use of alternative energy sources.

Keywords: car, electric transport, environmental pollution, solar energy, energy, battery

The task of real-time identification of control objects is relevant and in demand at the stages of auto-tuning and self-tuning of regulators. Modern industrial controllers have sufficient computational capabilities to implement adaptive control. The article discusses two approaches to obtaining the impulse transfer function of an object: by the least squares method and directly by the transient response. Least square identification is applicable for a wide class of objects, including oscillatory objects. But this method requires a fairly large amount of computational resources, which imposes a limitation on the speed of the object. The direct identification method for transient response requires significantly less computational resources, but is applicable for aperiodic objects. Algorithms are implemented in the form of programs for industrial controllers and can be used both at the stages of preliminary identification of control objects and at the stages of autotuning typical PID controllers and controllers in the state space.

Keywords: adaptive control, pulse transfer function, least squares method, transient response, PID controller, programmable logic controller, state variables control, programming language ST, prorgamming language C, CoDeSys

A system analysis of technologies and equipment for logging work was carried out in order to synthesize new solutions. It is based on the original functional and technological analysis of objects of logging technologies and equipment, worked out on a number of basic operations of timber industry. In the analysis, intellectual knowledge bases are being formed on technologies and equipment that are being improved or replaced, their role in the end-to-end technologies of timber production and related operations of these processes is taken into account. It is shown that it is advisable to harvest industrial wood with harvesters and forwarders during their cyclical work, to conduct forestry operations, to prevent and extinguish forest fires during the continuous movement of forest machines. As a result of the analysis, technical solutions were found for the technology of work and the structural elements of the multifunctional forest machine protected by patents.

Keywords: knowledge bases, logging work, methodology, multifunctional forest machine, system analysis

At the end of 2018, a pilot survey of DSTU students was conducted to identify their perception of propaganda in General. In total 169 respondents of 1 - 4 courses, age from 17 to 37 years were interviewed. Of these, 96 people were technical specialties, 73 were humanitarian. The paper presents the results obtained by the cognitive block of the questionnaire. It asked students to describe the fairness of the policy pursued by the state and the credibility of both government and opposition political propaganda in General. At the same time, domestic and foreign policy were considered separately. Diagrams of the distribution of these six values by respondents are given. It is received that in General on the investigated group the assessment of justice of policy of the state can be called rather negative. For domestic policy, 70% of respondents indicated a level of justice below the average, 36% of them consider it completely unfair. For foreign policy, these figures are 10% better. Approximately the same regularities are observed for assessing the reliability of political propaganda, both Pro-government and opposition. At the same time, about 10% consider opposition propaganda to be more reliable.

Keywords: perception, government propaganda , opposition propaganda, questioning, cognitive attitudes, distribution functions, evaluation, credibility of propaganda, justice of foreign and domestic policy

The article presents an analysis of the main methods of processing building structures, that contribute to the preservation of the strength characteristics under aggressive environmental influences, as well as the basic principles for calculating the parameters of cleaning materials with free abrasives.

Keywords: Free abrasive, particle, aggressive environment, dynamic impact, machining parts, probability estimate, contact patch, packing square, trajectory of movement, purification rate

The article is a structured source of relevant types of building materials, which are used in the design of facades of high-rise buildings and structures. The technological features of each of them are considered and examples are given from the construction practice, in particular, the city of Rostov-on-Don.

Keywords: High building, facade, panorama of the city, construction material, architectural-planning solution, atmospheric exposure, ""mirror"" material, economical raw materials, ventilation, combined facade

In this review article high-rise construction is considered, factors affecting the choice of a constructive system of a building are given. The shell (box-shaped) structural system is described in detail. The advantages and disadvantages of this structural system are listed.

Keywords: high-rise building, structural system (CS), shell (box-shaped) system, horizontal load, stiffness, stability, bezreskosnaya grille, diagonal grille, column, strapping beam, diagonal connection

The problem of negative impacts of various nature on the environment from the functioning of public facilities is currently particularly relevant. A special place among such objects is occuped by shopping and entertainment complexes representing a unique symbiosis of various zones. This makes them objects an extensive list of negative factors affecting the environment. At the first stage of the research to solve this problem we carried out a study of the existing scientific approaches to the assessment of the state of the environment and the selection of the scientific basis for subsequent research. The results obtained at the completed stage of the research can be used as the basis for improving the existing scientific base in order to minimize the shortcomings of the existing approaches.

Keywords: environmental safety, urban areas, urban environment, renovation of industrial areas, shopping and entertainment complexes, environmental impact, socio-environmental and economic assessment

Analysis of current requirements for the level of knowledge of the judicial construction and technical expert. The article is devoted to the problem of the lack of practical training, as well as a low level of knowledge in the use of modern electronic devices by judicial construction and technical experts.

Keywords: Current requirements for a forensic expert, forensic expert, construction and technical expertise

The issue of urban infrastructure management and urban planning technology "Smart city". The possibility of urban areas’ modernization using this technology is being studied. Actual problems of management of "Smart cities" are considered. The possibility of a positive economic effect is being studied.

Keywords: organization of construction, construction’s economy, application of technology "Smart city", urban environment, city life cycle

In article results of the analysis of method of calculation of flat plates of girderless floors are considered on breakdown according to the Russian and foreign design codes are considered. The analysis of the received results demonstrates that in the considered calculation procedures on breakdown similar settlement models are used and identical power factors are considered. Namely the pressing-through effort and the bending moments operating in two planes. Taking note of the moments in various techniques is carried out in two ways. The first way – tangent tension is entered into settlement model. And each technique offers the form of an epyura of tangent tension. The second way – introduction to a condition of durability of the empirical coefficient considering influence of the bending moments. Approach to purpose of geometrical parameters of a settlement (critical) contour is not identical. Contours of different techniques differ in a form and the sizes. And the difference of the sizes is very considerable. It is established that work of knot of interface of girderless flag with a column is studied yet not fully and additional researches on generalization of calculation procedures are required.

Keywords: reinforced concrete, girderless floor, breakdown, working height of section, transversal armature, pyramid of breakdown

Aspects of determination of pressure losses in local resistances at hydraulic calculation of underground polyethylene gas pipelines are considered. Calculation of coefficient of local resistance of saddle branch of firm FRIALEN (Germany) is resulted. The analysis of the dependence of the local resistance coefficient on the geometric parameters of the main gas pipeline and the gas pipeline-input is given.

Keywords: gas pipeline, hydraulic calculation, pressure loss, coefficient of local resistance, gas consumption, geometrical parameters

In the course of construction and technical expert examination, the non-destructive testing is widely used. Its main difference from other research methods is that the inspected facility is not subject to destruction and deformation, while the use of non-destructive control methods allows determining the characteristics of the facility technical condition and individual structures, as well as identifying the need for additional strengthening or reconstruction of the building components.

Keywords: construction and technical expert examination, non-destructive testing, methods of non-destructive testing, quality of construction works, inspection of the building technical condition

The article is devoted to the comparative analysis of the construction and operation of buildings of traditional shape and round shape in the plan. Given data on material costs in the operation of buildings of different shapes.

Keywords: shaping, round buildings, energy efficiency, square buildings, building shapes, heating, thermal protection

The article analyzes the natural conditions of the Northern latitudes of Russia, where the main reserves of fossil hydrocarbons and metals are concentrated. It is shown that mining requires the development of the road network and artificial structures on the roads. It is noted that the most difficult stage in the construction of bridge structures is the construction of foundations. The types used in the Northern latitudes of foundations are considered, and their positive and negative qualities, such as weight, method of construction and volume of earthworks, are noted. The paper emphasizes the relevance of the problem of maintaining the stability of permafrost soils in seasonal thawing and loss of their bearing capacity. Methods of maintaining the soil in a solid state can be natural and artificial. The methods of thermal stabilization of soils, as well as machinery and equipment used in these conditions.

Keywords: permafrost, road network, bridge, polystyrene, superstructure, pile support, Foundation, thermal insulation screen, heat stabilizer

The results of the calculation of installations for reducing the level of air pollution from dust and gas emissions from the Bzugu wastewater treatment plant are given. The aerodynamic calculation of pipelines of the system for cleaning dust and gas emissions and the calculation of prevented environmental damage during the implementation of the proposed environmental measures have been performed.

Keywords: dryers, dust and gas emissions, dust, ammonia, turboscrubber, Yatagan gas convector, axonometric scheme

The article discusses the results of the development of the installation, which allows to ensure the process of purification of multicomponent wastewater containing organic impurities of the phenol series based on the combined method in a single apparatus, consistently combining the ozonation process with the sorption purification of oxidized wastewater, ensuring the continuity of the process and allowing the reuse of residual ozone, which greatly increases the degree of wastewater treatment and eliminates the need for the destruction of ozo on. The degree of purification achieved in this way allows the treated wastewater to be directed to the circulating water supply. The novelty of the task and the lack of available information about the combined process determined the nature and scope of experimental studies. There was a need to develop an apparatus that provides the process of purification of wastewater containing mixtures of organic compounds of the phenol series, consistently combining the process of ozonation with sorption purification of oxidized wastewater, ensuring the continuity of the process. The achieved degree of purification allows directing the treated wastewater to the circulating water supply.

Keywords: multicomponent wastewater, wastewater treatment from organic compounds of the phenol series, ozonation, sorption, adsorption, oxidation-sorption column

Over the last years there is much concern about the quality of execution and selection of the actual documentation in the registration proceeding of the facilities construction turn-over package. There is no exact consolidated catalog of as-built documentation in the new normative and technical literature. Each executive document represents as an application to various sources of regulatory and technical literature. Therefore, the article presents a divided into chapters detailed catalog of as-built documentation for the oil and gas facility construction. An explanation is given for each chapter for which purpose it is formed and what function it has in the general package of as-built documentation. The main aspects of the as-built documentation execution are considered, a list of the documentation and some recommendations on the facility commissioning to the Client are given. Additionally, there is a suggested recommendation on the execution and filling of the package (folders) of the construction as-built documentation. This article recommends a common procedure for filling out and arrangement of the document flow of PTW package and as-built documentation of construction and installation works and the commissioning of the capital construction facilities. The article clearly describes the goals: - Improvement of the quality of as-built documentation execution; - Organization of the process of preparation, making up and verification of the package contents and quality of turnover documentation for construction and installation works; - Conducing the as-built documentation to a uniform style, which provides a high degree of the documents identification and control over the execution of the quality of preparation and completeness of the turnover documentation for works and construction projects; - Making-up of the objects reporting documentation; - Making-up of a document collection of the objects and work performed; - Establishing of universal explanation of the normative requirements by the all participants in the construction process. The focal point of this article is to provide recommendations on the execution of the turnover documentation for the facility construction, as well as improving the quality of as-built documentation execution. This article is action-oriented and is aimed to help young professional of the production and technical department of contracting companies, specialists of the Capital Projects Department, construction control and customer companies.

Keywords: acceptance documentation, construction and installation works, client, document control department, construction quality control, technical production department

The article is devoted to the analysis of the physical essence of the process of reducing air pollution for the woodworking shop of the enterprise serving the objects of urban construction, within the framework of the physical and energy approach. According to this approach, wood dust is considered from the position of the theory of dispersed systems, which changes its properties under the influence of external dispersed systems. The whole process is gradually illustrated by a physical model of the process of reducing air pollution, as well as a scheme of transformation of the dispersed system (dust aerosol) in the process of reducing air pollution.

Keywords: environmental safety in construction, the object of urban construction, dispersion system, woodworking shop, wood dust, air pollution reduction, physical and energy approach, physical model of the process of reducing air pollution.

In the present work determined the specific tensile strength of the samples connected to various mounting accessories brand "MDM-Komplekt" and justified her choice to secure parts for various purposes. The study showed that the mounting hardware differs not only in ways of fixing the two parts and the invisibility of fasteners, but also important is the ability of a particular screed to resist loads exerted on the unit

Keywords: Cabinet furniture, fittings, tensile strength, laminated chipboard

The features of natural water reagent treatment are considered. The evaluation of the efficiency of coagulants, the most frequently used in the Russian Federation, rational methods of their introduction into the treated water is given. A method of water treatment is proposed, which allows to use the advantages and minimize the disadvantages of mineral coagulants. Experimental data confirming the effectiveness of the proposed method of concentrated coagulation using a mixed coagulant are presented.

Keywords: water of superficial sources, coagulant, sulfate aluminum, aluminum polyoxychloride, the concentrated input of a coagulant

The article presents a typology of architectural solutions for residential houses for families with children, formulated requirements for the creation of an urban residential house under conditions of intensive use of residential territory at three structural levels of the dwelling, respectively: living cell, residential house, residential group. Proposals are given for zoning, composition, areas and interrelationships of the premises of the living cell, its shaping, taking into account climatic features and blocking requirements; on the adjustment of existing standards, the planning schemes of residential houses are given, illustrating the essence of the proposed method of dwelling formation; disclosed the socio-economic effect of the introduction of the proposal.

Keywords: architecture, dwelling, planning, Arab house, construction, Anbar province and Iraq

The results of the study of the stability of the core structure of a polygonal ring under the action of a system of self-balanced radial forces are presented. A complete solution of the problem is given in accordance with the fundamental equations of the theory of R. Mises as applied to a statically definable planar structure. It is established that the instability parameter of the core structure of the hexagonal ring is determined solely by the number of nodal points of the hinged rod system.

Keywords: core structure, regular polygon, hyperboloid, annular diaphragm, determinant, characteristic polynomial, cyclic symmetry