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  • Designing automated process control systems using graph theory methods

    The objectives of improving production efficiency and product quality are relevant for any enterprise. One solution to this issue may be to optimize the processes of automation of production processes in enterprises. This article proposes a solution that will allow you to design the most optimal routes for network connections at all levels of the process control system, which in turn will provide significant resource savings and thus increase the efficiency of automation processes in enterprises.

    Keywords: efficiency improvement, graph theory, automated process control system (APCS), graph frame, optimization methods

  • Structural and functional model of modernization of the regional system of vocational education

    The article is devoted to the development of an effective model of interaction between the main participants of the regional labor market: the system of vocational education, the leading employers of the region and regional Executive authorities. The proposed structural and functional model includes a management system based on regional Executive authorities, a system for forecasting the needs of employers in key sectors of the region's economy, a system for assessing the quality of graduates ' competencies and educational programs, a system for monitoring the employment of graduates, a training system and a funding mechanism for the vocational education system, as well as a career-oriented Internet portal for informing the population about the future needs of the economy in the workforce. Using the proposed model of modernization will allow to bring into line the issue of the vocational education system to the needs of the regional economy, increase the level of employment of graduates and thereby increase the effectiveness of functioning of regional system of vocational education.

    Keywords: vocational education, effectiveness of functioning, modernization, model, needs of employers, labor market

  • The Composition of Intelligent Models for the Assessment of Complex Risks and the Approach to Its Fformation

    The outlines of the composition of intelligent models for the assessment of complex risks, consisting of a ways of extracting and formalizing knowledge based on an ontological model, intelligent models for evaluating the process, structural and system aspects of risks are determined. A method of forming a composition of models for the assessment of complex risks, based on the decomposition of the problem of risk assessment into separate requirements, is proposed. The boundaries of the participation of subject matter specialists and / or risk management specialists in setting up, training, adapting and assembling both individual intellectual models and their composition as a whole are determined.

    Keywords: intelligent models, risk management, intelligent model composition, ontological model

  • Modeling the operation of the power supply system of the greenhouse

    The results of a numerical experiment that obtained with using of the developed mathematical model of the operation of the power supply system of the greenhouse are presented. The list of input factors of the model included external factors: ambient temperature, length of daylight hours, wind speed, insolation, and factors that characterize the internal working conditions of the greenhouse.The values of external factors varied within the average daily values for the location of the greenhouse, the process parameters were determined taking into account the possible modes of operation of the greenhouse. The dependences between the amount of thermal energy consumed by the greenhouse, the energy consumption of the energy supply system, the gross energy consumption of the energy supply system, the utilization rate of gross energy and the levels of factors are shown. The results of the analysis of the obtained dependencies are presented.

    Keywords: modeling, power supply system, greenhouse

  • Modeling of temperature regulation system in the bioreactor for cultivation Chlorella microalgae

    The paper considers the bioreactor for cultivation of Chlorella microalgae. The indicators of the process quality and the description of the bioreactor design are given. The computation of the transfer function of the system to maintain the temperature of water in the main tank by the method of Rotach is calculated

    Keywords: automation, bioreactor, biotechnology, Chlorella, system of regulation, transfer function calculation, Rotach method

  • Quantum computation, quantum theory and artificial intelligence

    the paper is focused on the latest advancements in the field of quantum computation. The aim of the paper is to point out the main problems arising in the process of developing a computer based on quantum computation. In addition, the paper covers what has already been done to solve these problems. Furthermore, various aplications of quamtum computation are covered, for example, the use of quantum computation in artificial intelligence and search.

    Keywords: qunatum physics, quantum computation, quantum computer, quantum programming, quantum theory, artificial intelligence, quantum search, quantum circuit, qubit, quantum algorithm, Turing Machine

  • Geoinformation model of the justification of territory for placing of automobile transport enterprise

    In this paper, the task of territorial planning of road transport enterprises is considered, taking into account modern requirements for the development of the urban environment. Methods for solving problems of territorial planning using geographic information technologies are highlighted. The work identified the factors of placement inherent in this subject area and characterized by spatial, temporal, pragmatic characteristics. Given the spatial nature of the task and the input data, it is proposed to use geoinformation modeling as an effective means of solving problems, which are based on geodata. The model of a geographic information system is presented as a combination of a model of visualization and consideration of spatial distribution factors, including sets of production rules. This model also contains a block of regulatory data that regulates the process of land use and allows us to evaluate the suitability of a particular site. The process of visual analysis is described and the main elements of the visualization model are identified. The totality of the data components of the geo-information model makes it possible to take into account heterogeneous information, conduct its complex analysis and make better decisions.

    Keywords: geoinformation modeling, spatial planning, automobile transportation company, visualization, location factor

  • A simulation model of the perception of propaganda

    This study examines the dynamics of the perception of individual segments of the advocacy news. A probabilistic-stochastic approach for simulation is proposed. As the main actor describing the situation, the probability of a positive assessment of the veracity of the new information by a separate subject is taken. For the description of the process of forming the relation to it the discrete-event paradigm is chosen. The change in the level of evaluation occurs under the influence of random perturbations of the individual's opinion, experienced at discrete moments of time. An intuitive recalculation after this perception of the news is modeled based on Bayes ' theory of decision making. Mathematically, this approach fully coincides with the previously used by us in the numerical analysis of the resolution of intrapersonal conflicts. The results revealed at that time were adapted to study the dynamics of the perception of propaganda news by a neutral part of the population. Which is made by the individuals estimating truthfulness of propaganda activity as a whole neutrally, at the level of ½ (on a scale from 0 to +1). It is found that when assessing specific news such neutrality is violated, in the end, the individual believes the news is either completely true or false. But it is already being restored at the level of the ensemble of all news. About half of them are considered by the individual to be true, half – false. The time before the formation of the final perception of a particular news depends on the degree of its importance for the subject, and the minimum is observed at the level of significance slightly below the maximum. The model of taking into account the social environment in the resolution of intrapersonal conflicts has also been adapted for the analysis of the perception of propaganda information. While the assessments of the credibility of the individual stories of neighbors are correlated. Over time, clusters with the same perception are formed in society. Ideally, in the absence of other influences, eventually one opinion is formed in the whole study group. Here again, for some propaganda news, the neutrality of perception is broken, but it is restored at the level of the ensemble of all news. The proposed models can be used to study not only the neutral part of the population, but also groups with any level of assessment of the truthfulness of propaganda in General, both homogeneous and heterogeneous in this parameter. In addition, the proposed approach can serve as a basis for the study of the impact of agents of influence (in the information space) and the development of advocacy strategies.

    Keywords: propaganda, perception, in General, separate news, modeling, probabilistic-stochastic approach, discrete-event approximation, Bayesian theory, multi-agent analysis, social environment, clustering

  • Creation of an information system to optimize the operation of the Parking lot

    The article presents materials on the creation of Parking management AIS. The results of simulation modeling, which allowed to identify the "bottlenecks" of the project. Design diagrams have been corrected, processes have been included to optimize the operation of the Parking lot. The user interface is shown, the prospects of the system development are outlined.

    Keywords: modeling, implementation,information system, IP design, Queuing system, diagram, Parking

  • Logical-combinatorial algorithm for experimental data fragmentation of in "Cut-Glue" approximation problems

    The construction of mathematical models of technical objects is most often associated with the mathematical processing of experimental data. Due to significant non-linearities, approximation of such dependencies using known methods (polynomial expansions, spline approximation, etc.) is, firstly, difficult, and, secondly, is associated with large errors. Studies have been conducted to create and substantiate an alternative to the existing “Cut-Glue” method of approximation (CGA).In the CGA problem, there are three subtasks: fragmentation, approximation, and multiplicatively additive processing of the results of the first two subtasks. The initial subtask is data fragmentation. It is a preparatory stage for the subsequent stages of the implementation of the Cut-Glue approximation method.The method of its solution is based on logical-combinatorial features and conditions for partitioning multidimensional data. It allows you to consider the maximum possible number of various solutions when searching for the best.The CGA method implements a fundamentally new approach and is designed to solve the problems of experimental description of nonlinear dependencies. To implement the CGA method, the software package ""Algorithmic structure and functionality of the"" CutGlueApproximation ""software complex was developed. The article describes the nature and capabilities of the functional implemented in software tool ST. ST can be used as part of the entire software package (SP) or independently to perform intermediate tasks in isolation from the entire complex. The connection between the parts is realized with the help of auxiliary libraries, which allow both to use input data and to present the resulting data in various forms, which makes the SP more flexible. A convenient user interface contains many variable parameters for flexible configuration and convenient structured information output at all stages. With the help of the developed ST, many demonstration experiments have been carried out.

    Keywords: Approximation, optimization, mathematical model, combinatorics, heuristic algorithms, modeling, software complex, fragmentation

  • The calculation of the deformation of a becoming hardened concast billet under the action of internal ferrostatic pressure

    The article is devoted to the close studying of heat transfer and hardening of the ingot in the secondary cooling zone (further SCZ) in the continuous casting machine (further CCM), and also determining a stress-strain state of the ingot including continuously varying temperature field inside it in order to prevent the process of buckling the ingot by setting rollers in the center of the largest displacements and deformations and as a consequence of reducing the length of the roller section. This aim is achieved through the development of methods of calculation of the stress-strain state of the ingot in a CCM with a help of the temperature object decision, correct selection of the approximation model of the experimental data and the selection of finite element-based on the Lagrangian description of motion of a continuous medium and comparison the calculation results for multiple selected sections.

    Keywords: continuous casting machine, ingot, hardening in the secondary cooling zone, rollers, heat-exchange

  • Numerical study of the propagation of nonlinear waves on the surface of a viscous liquid

    A nonlinear boundary value problem on the propagation of surface waves in a layer of viscous incompressible fluid of infinite depth is considered. Equations of motion and boundary conditions are written. The solution of the problem is found by the small parameter method. An expression for the damping decrement of the wave oscillations is obtained. The program code in C++ for the numerical study of the propagation of nonlinear waves on the surface of a viscous liquid is developed.

    Keywords: viscous liquid, slabowska fluid, nonlinear surface waves, the damping rate of waves, phase velocity, frequency wave

  • Implementation of the method of machining deep grooves of the turbine rotor

    The article deals with the results of the practical implementation of the method of milling deep grooves of the turbine rotor.

    Keywords: Turning, milling, disk milling, deep grooves

  • Numerical research and optimization of the shape of an axisymmetric body in an aerodynamic flow

    In this paper, a numerical study of the optimized body shape with minimal aerodynamic drag has been carried out. A computational experiment involves the transition from the study of a real object to the study of its mathematical model, for the study of such processes, a full-scale study of which is impossible, for some reason is difficult or expensive. The conditions for comparing the forms of bodies in a computational experiment are that they are kept constant for all bodies: the volume and shape of the working area; distances from sources, drains and centers of bodies; gas flow rates; body mass and other secondary characteristics besides just the very shape of the surface.

    Keywords: aerodynamic resistance, optimized body shape, numerical simulation, computational experiment, temperature field, convective heat transfer

  • Combating the opportunistic behavior of subjects in river water quality control systems

    The article deals with the task of dealing with the opportunistic behavior of the supervisor and agents in the river water quality control system. A two-level hierarchical model is built, including a supervisor (master) and agents (slaves). Each of the subjects seeks to maximize their objective function. In the model, the principal is implicitly present, fighting against the opportunistic behavior of the supervisor and agents. As the method of control used the method of inducement. The behavior of the system is investigated in the case of Shtakelberg’s information regulations. The algorithm for finding the Stackelberg equilibrium is indicated. The results of model simulation under various initial conditions are demonstrated. An analysis of the results is provided.

    Keywords: Shtakelberg equilibrium, two-level system, prompting, imitation, opportunistic behavior, river water quality, hierarchy

  • Evaluation of the effect of the trace elements on the reliability of the project in the field-programmable gate array basis

    In this article, the evaluation of the effect of the trace elements on the reliability of the design of the combinational circuit in the field-programmable gate array (FPGA) basis is researched. An evaluation of the reliability of combinational circuits in the basis of three-input FPGA cells, as well as three-input FPGA cells, taking into account the trace elements, is given. Proposed methods for evaluate the reliability of the project at various stages of the development of fault-tolerance projects in the FPGA basis. The use of these methods allows the design of combinational circuits of increased reliability in the basis of reconfigurable integrated circuits without built-in reliability features.

    Keywords: reliability, evaluation fault tolerance, combinational circuit, FPGA, fault injection

  • Developing a web application using Spring Framework and jQuery

    The paper describes the process of developing a web application that contains audio content. When designing the system, the methodology of OOAP (Object-Oriented Analysis and Design) and the MVC (Model View Controller) design pattern were used. With umbrello, canonical UML diagrams are constructed, describing various aspects of the system being modeled. Based on the diagrams created, the application was implemented using the java programming language. Also, the user interface is made, allowing to demonstrate the capabilities of the application. The developed application should be a multi-page client-server application with the ability to listen to music and create playlists based on their preferences.

    Keywords: web application; audio content; methodology of object-oriented analysis and design; UML - chart; java programming language

  • Methods of selecting a contractor when conducting tenders for construction based on the principles of subject-oriented management

    The article discusses the results of the development of a methodology based on the principles of subject-augmented management for choosing a contractor in construction when placing orders for contract bidding to meet state and municipal needs. The considered methodology is based on determining criteria for evaluating bidders for contract bidding, processing expert information, translating quality indicators into qualimetric units of measurement, and also modeling the preferences of bidders. The principle of subject-oriented management, on which this methodology is based, involves the use of a non-manipulated mechanism. The application of this methodology on the principles of subject-oriented management becomes relevant when the individual with different preferences is involved in setting the minimum initial contract price. The urgency of finding methods for objectively selecting the winners of tenders in construction is due to the established practice of allocating government contracts through an auction mechanism, where the only criterion for determining the winner is to offer a minimum cost of work, which directly affects the quality of work performed and services rendered. The study of the relevance of the investigated problem revealed the fact that to evaluate and account for technical and technological solutions used to select the winner of contract bidding it is necessary to use qualimetric methods based on non-manipulable mechanisms - exclusion of any kind of manipulation of the results of the bidding in their interests. The technique describes the concept of contract bidding. A system of criteria is proposed that is most fully capable of evaluating the participant’s application. The criteria can be divided into three groups: the first group describes the motivation of the participant, the second group evaluates the tender proposal, separately allocated the contract price.

    Keywords: contractors, municipal order, subject-oriented management, non-manipulable mechanisms, contract bidding in construction, integrated assessment, integral indicator

  • Overview of Intellectual Transport Systems Architecture Design Methods

    Two basic approaches to designing architectures used in the United States and the European Union are considered. The role of the architecture design stage in the development of projects for intelligent transport systems has been determined. Prospective development directions for design methods of architectures of this type have been identified

    Keywords: Architecture, intelligent transport systems, subsystems, functional and physical architecture, services

  • Technical science. Building and architecture

  • Comparison of the effect of fiber reinforcement of various types on the properties of centrifuged and vibrated products from heavy concrete class B20

    The current state of the issue of the nomenclature of centrifuged thin-walled prefabricated reinforced concrete products of the ring configuration is analyzed. The scientific interest, which is represented by the technology of fiber reinforcement for such concretes, is grounded. The actual problems for concretes produced by the centrifugation method are indicated. A series of large-scale experimental studies has been carried out to establish the nature of the change in the properties of heavy concrete manufactured by various methods, depending on the reinforcement by different types of dispersed fibers. To systematize the accumulated experimental data, at the first stage of the investigation, products of low-strength concrete, class B20, manufactured by vibration and centrifugation, were molded and investigated, followed by a reduction to uniformity. The compressive strength and tensile strength, as well as their increments, depending on the type of reinforcing fiber-polypropylene, basalt or steel fiber, were studied. The effect on the properties of the investigated concrete of the B20 class is determined by the combination of various prescription and technological factors.

    Keywords: centrifuged concrete, vibrated concrete, thin-walled reinforced concrete products, fiber reinforcement, polypropylene fiber, basalt fiber, steel fiber, compressive strength, tensile strength

  • Comparison of the effect of fiber reinforcement of various types on the properties of centrifuged and vibrated products from heavy concrete class B35

    The scientific interest, which is represented by research for concretes differing in strength characteristics, is substantiated. A series of large-scale experimental studies has been carried out to establish the nature of the change in the properties of heavy concrete manufactured by various methods, depending on the reinforcement by different types of dispersed fibers. At this stage of the study, in order to systematize the accumulated experimental data, the authors molded and examined products made of concrete of class B35, manufactured by vibration and centrifugation, with subsequent reduction to uniformity for the convenience of an analytical comparison of the results obtained. The compressive strength and tensile strength, as well as their increments, depending on the type of reinforcing fiber-polypropylene, basalt or steel fiber, were studied. The influence on the properties of the investigated concrete of class B35 on the combination of various prescription and technological factors has been established.

    Keywords: centrifuged concrete, vibrated concrete, thin-walled reinforced concrete products, fiber reinforcement, polypropylene fiber, basalt fiber, steel fiber, compressive strength, tensile strength

  • The study of nonlinear wave processes on the surface of the liquid in the electric field

    The dependence of the values characterizing the propagation of nonlinear waves on the surface of a liquid conductor on the electric field strength and on the wavelength is described. Electrohydrodynamic waves are investigated, namely, the motion of drops, convective motion of liquid, deformation of drops and bubbles in the applied electric field, propagation of surface waves in a linear approximation are considered. A mathematical model of nonlinear wave propagation on the charged surface of a liquid conductor is constructed. The graphs of the dependence of the wave oscillation frequency on the electric field strength and phase velocity on the wavelength are plotted.

    Keywords: nonlinear surface waves, liquid conductor, dielectric constant, phase velocity, magnetic field strength, surface charge

  • Evaluation of the operational fitness of reinforced concrete crane girders with abnormal damages

    This article analyzes the stress-strain state of exploited reinforced concrete crane beams in order to identify the causes of abnormal damages. Also, the degree of influence of the revealed damages on safety and operational fitness was assessed.

    Keywords: crane beam, technical condition, operational availability, defect, durability, damage, inspection, discretization, stress-strain state

  • Analysis of the ratio of shifts and extreme members of aggregates and samples by resource and strength

    The simulation variances of the final volume considerably simplifies the solution of certain problems of reliability. The collection of information for aggregates of large volumes is impractical because of the duration and high cost. Therefore, the analysis and calculation are subjected to a representative sample. To move from sample data to finite volume population parameters, an analytical method for determining the Weibull parameters for the population was used. Analysis of the analytical method for determining the parameters of the three-parameter Weibull distribution for the aggregate confirmed the possibility of using the method of modeling statistical data of strength and life of parts and components of machines. The calculations proved that in practice it is possible to use both the value of the shift parameter and the value of the extreme terms of a number of the population.

    Keywords: reliability, analytical method, simulation, General population of finite volume, the sample, the Weibull law, strength, resource, detail, Assembly, machine