In the article the technique of data processing of field and laboratory research of water-dissolved gases, osnovna on the use of the developed software and databases

Keywords: Water-soluble gases, software package, database, data processing

Тhe article deals with the malfunctions of the vehicle's brake system, resulting in uneven wear of the brake pads. Illustrations of damaged pads are given. Recommendations for troubleshooting are given.

Keywords: car, brake system, brake shoe, wear pads, malfunction

In the article questions of diagnosing of a technical condition of antiblocking system (ABS) of brakes of the car are considered. The main types of faults and the causes of their occurrence are outlined. Recommendations are given to drivers for the prevention of damages or failures of ABS

Keywords: car, anti-lock braking system, diagnostics, stand, malfunction, failure

The article is devoted to the development of a multicriteria transport problem solution. As criteria, the minimal cost of transportation, the minimal time of transportation, the minimal overhead charges and the maximal volume of transportations were taken. Classical methods for solving multicriteria optimization problems are modified and adapted to the transport problem specification. In Visual Studio C # programming language, is used as a software package to solve the multicriteria transport task problem by one of the methods of linear convolution, or the main criterion, or compromise method or the method of guaranteed result and to compare the results obtained. The first paragraph is devoted to the formulation and mathematical model design of four-criterial transport problem. The second paragraph contains an example the application of guaranteed result method to solve transport problem. The next paragraph describes the program realization of transport problem with four criteria.

Keywords: four-criterial transport problem, method of potentials, initial symplex table, main criterium method, compromise method, lambda-problem, liniar convolutuin method, transporat carriages, program realization, multiplicative convolution, guaranteed result me

The task of this work is a survey of passenger correspondence, a traffic intensity survey ,a passenger traffic survey of the road net on the example of Sochi. Used methods: passenger correspondence polling by questionnaire, statistical analysis for the array of correspondence processing, observation, registration and analysis of traffic and passenger intensity.

Keywords: passenger correspondence, traffic, public transport, passenger traffic

In the work described and the criteria of layout of self-propelled forestry tractors, processing equipment(crane, chipper), mounting structure, capacity of mobile chippers. The system analysis on the choice of optimum arrangement is carried out.

Keywords: logging self-propelled tractor, hydraulic manipulator, chopping machine, system analysis

The article reports about approximation algorithm for Integer Factoriation Problem (IFP) using reduction to optimizing case of SAT problem with 3 literals per clause (MAX-3SAT). A continuous functional that equivivalent MAX-3SAT is builded and solved by simple iteration method with variable neighboordood search and Bayesian rounding. It shown that global minimum of the functional cannot be reached in almost samples because local extremums but arguments of ones can be compared with the exact solution. The experiments show that the developed gybrid algorithm improves earlier version developed by authors. Also this method is analyzed by quantum channels defense In systems of quantum key distribution. A typical structure of one is described.

Keywords: Integer Factorization Problem, an optimzed version of SAT problem (MAX-3SAT), various neighboorhood search, continuous functional of MAX-3SAT representation, quantum key distribution

Passive detection sensors are widely spread in engineering-technical systems of information protection. During designing such systems, it may be difficult to calculate the coverage areas of infrared detectors. This is due to the fact that the problem of establishing a relationship between the theory of statistical detection and the choice of parameters for the equation of the maximum detection range is not considered in detail. In this regard, the task was to develop a method for applying the basic equation of passive location to calculate the coverage areas of infrared detectors. The calculation method is developed on the basis of the equation of the maximum range of the passive receiver. The study considered three models of the signal-to-noise ratio: a signal against a white noise background with fully known signal-to-noise parameters; detection of a signal whose phase and amplitude are unknown; and detection of a random signal against a noise background. As a result of the research, the conditions under which the passive signal detection formulas on the background of noise give correct results were found. Thus, the connection of the statistical theory of detection with the equation of the range of the passive emitter was established.

Keywords: information security, infrared detector, passive location, engineering and technical protection, the pyroelectric element

In the article on the basis of the analysis the basic technical and organizational actions are defined that allowed to carry out statement of a task on improvement of system of management of technological process of portal car wash. A mathematical model of fuzzy car wash control is developed due to the program control of water supply depending on the shape, geometry and degree of pollution of the car, in order to reduce water consumption and improve the energy efficiency of the portal car wash. Mamdani algorithm is proposed as fuzzy inference algorithm, which is easily implemented in MATLAB software product on the basis of knowledge and experience of experts, as well as modeling of the operator. Formalization of the description of water supply level, shape, size and degree of pollution of the car is carried out by means of linguistic variables, their type and description of elements of thermal sets of these variables is given. The proposed mathematical model can be used in the design of control systems and other types of automatic car washes.

Keywords: car wash, mathematical model, fuzzy control, fuzzy inference algorithm, linguistic variable, term-set of linguistic variable, basic set

The article considers the device for experimental and laboratory testing of microclimate systems. The device is an experimental setup in which it is possible to study the microclimate parameters of multi-functional and multi-level buildings by modeling various processes and their location in the total volume of buildings. Accordingly, with the help of this test model, the parameters of the movement of contaminated air masses and convective flows are studied.

Keywords: test model, installation, microclimate, multi-functional multi-level buildings, process modeling, air, convective flows

The purpose of the ongoing research work is to create a platform for automated data processing, that provides the user with a coherent textual report with the results of the analysis. The results of the first stage of the work are: the development of a system of meta-data properties, the development and implementation of an algorithm for obtaining meta-properties from the user, writing code for the application of basic statistical methods in R, constructing an algorithm for automatic analysis based on meta-properties and its software implementation. The results of the second stage of the work are: testing and updating of platform algorithms, investigation of text generation methods, development of a system of multivariate templates for interpretation of results, and development and implementation of algorithms for forming a coherent textual report with data analysis results. Based on the recommendations of data analysis report formatting (GCP and others), templates for interpreting the results for each statistical method have been developed. Possible combinations of properties of initial data and results are analyzed and template variants for each scenario are created. All the developed algorithms (4 tasks, 6 modules) are launched on the platform (online service online.statzilla.ru).

Keywords: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production

The article describes the concept of corporate information portal, its types and classification. The main features of both Internet portals and corporate portal are described. The concept of corporate information system is considered both in the classical version and under the enterprise concept of Enterprise 2.0. The problem of use of ideas of social networks in corporate information systems is presented.

Keywords: portal, information technologies, corporate information technologies, social networks, Enterprise 2.0.

In this article to solve the problem of optimal distribution of information resources over the nodes of distributed inorganic system according to the criterion of minimum of the medium time, the response of the system to the requests of the users an original heuristic algorithm is proposed that uses the notion of databases as points of a mulltidimensional space, but about nodes in which these bases are placed as clasters. The resuts of numerical experiments are presennted depending on the architecture of the distributed system used and on the method of ensuring data integrity. Numerical experiments showed rather high efficiency of the proposed algorithm.

Keywords: Distributed information system, distributed data base, local computing system, mass service network, non-lineare combinatorial optimization, query generation, a matrix of probabilities for generating queries by users, a matrix for distributing relations a

New possibilities of using variable information signs for traffic management are proposed. The advantages of using these signs, their shortcomings and ways to eliminate these shortcomings

Keywords: road signs of variable information, intellectual traffic management, traffic management

The problem of distribution of compensating devices of consumers between separate nodes of the power system is considered in the article. The analytical model and the algorithm for optimizing reactive power compensation are presented. Criteria of optimality of reactive power compensation are singled out. The account is taken of poorly formalized, technological factors.

Keywords: Keywords reactive power compensation, multicriteria, information uncertainty, consumer compensating devices, analytical model, optimality criteria, normalized factors

It contains materials of the expert analysis of the project for creation of the first in Russia engineering forum of scientific and technological activities, social and technological entrepreneurship called “Rozmysly”, which was also held within the framework of the roundtable discussion “Introduction of high technologies into modern production; Information support of engineering activities” at the IV Congress of Don Engineers. The problem of formation of the publicly accessible Internet space in the field of engineering is proposed to be solved on the basis of three system principles: the principle of initialization, support and development of creative inventive activity; the principle of increasing the public accessibility, namely, implementation of open, publicly accessible electronic environment based on the model of a double open access, the model of an open access to publications with attribution and the model of an open access to publications of engineering monographs; the principle of collegiality in the development of innovative interactive forms of interaction based on the open public forum “Rozmysly”. The project implies involving a wide range of practitioners, research engineers, young scientists, applicants, graduate students, students and even senior pupils in scientific engineering knowledge by providing them with the opportunity to publish, read and discuss the results of publications. “Rozmysly” project of the Rostov branch of the Russian Engineering Academy “Public open engineering forum of scientific and technological activities, social and technological entrepreneurship” is developed using the grant of the President of the Russian Federation for development of the civil society provided by the Foundation for Presidential Grants.

Keywords: engineering activity, Internet platform, forum, storage, open access, publication, community

The article presents a physiological and hygienic evaluation of the heat-protective properties of winter clothing for outdoor activities taking into account criterial marks characterizing the human thermal state, using a measuring-calculating complex and special software. The software allows to calculate a thermal insulation value of clothing with the energy consumption, cold and wind, deformation characteristics of insulation, clothing package design, the air permeability of the upper fabric, the existence in the cold and the degree of human cooling. The use of computer technology at the design stage allows you to create clothes for outdoor activities of high quality with a stable heat-shielding properties, reduce development time and reduce the influence of the subjective factor of the designer. The carried out researches of the advanced design of a heat-shielding package confirm high quality and exploitative properties in real conditions.

Keywords: heat-protective clothing, automated calculation, compressive deformation, insulation of clothing, insulating materials, automated designing of clothes

Optimal usage of territories appears as applicable problem at the present time. Its description is hold in geographic information systems (GIS) and may be used for solving ecological, administrative, transport and logistical tasks. We consider to use topographic maps for production GIS. By now algorithms for reconstruction of plan of contour lines are developed. This plan of contour lines appears as matrix of spatial scattered data, which are needed to interpolate for production a digital terrain model. There are some common algorithms for interpolation (linear, cubic spline, natural), but they aren’t fit for good shape reproduction. We consider an algorithm based on 3-class classifier of points. Points of 1st class are between two contour lines and are interpolated by n nearest points of the nearest contour line and the nearest point of another line. Points of 2nd class are inside of one contour line, accord with peaks or depths and are interpolated with similar algorithm and value of extremum which is taken by mark of height is used. Points of 3rd class are between a contour line and boundaries of topographic map; their interpolation may be taken by union of several maps and they become points of 1st class. Processing speed, maximal error and mean-root square error are used as measure of quality. Considered algorithm has shown improvement by comparison with other methods with decrease of errors and nonthreatening increasing of processing time.

Keywords: interpolation, geographic information system, topographic map, digital terrain model, scattered data

The shift to the separately integrated logistic system depends on the necessity for managing material flows in the systems. The idea of ABC analysis is to single out the most important object with regard to the purpose from the set of whole homogeneous objects.The ABC method envisages deeper division into three parts, as well as the overall statistical distribution. The first major step of ABC analysis is to define the goal. The same sets of the objects of management will be divided into the subsets A, B and C. Management of high-performance warehouses envisages and devotes much time to the problems of superfluous movements in the warehouse. The goal is to save time and energy, i.e. resources that always are in deficit. It is possible to avoid over-expenditure of turnover resource, if we place this assortment in the so-called "hot zones", i.e. in the zones that are located in places convenient for delivery of goods. The second stage of ABC analysis is identification of the analytical management objects. Although, other objects also can be selected for solving these tasks. For example: the stock in warehouse can be reduced if we pay particular attention to those suppliers accounting for the main part of the warehouse stock. In this case, the objects of management will be the suppliers. This is the sign, which can be used for the classification of suppliers (3rd stage of the algorithm - the share of goods obtained from the given supplier in the warehouse). Once, the classification sign is identified, each supplier is assessed according to the identified sign (stage 4). Then, we organize the grouping of objects, depending on the reduction of the identified signs (stage 5). The upper part of the ordered list will play a major role in terms of the goal set. The solution method is described in the following manner. The first is the method of determining the boundaries by the ABC curve. The described method can be used to divide the nomenclature.Analysis of ABC allows us for differentiating the assortment according to the contribution to the targeted result. The principle of differentiation of assortment is different during XYZ analysis. In this case, the entire assortment (resources) are divided into three groups, according to the equidimensional demand and prediction accuracy. The X group includes goods the demands for which is equidimensional or subject to minor deviations. The volume of realization of goods in the given group will be well calculated. The Y group includes goods, which are consumed in changing volume. Particularly, the item of seasonal demand can be included in this group. Forecasting the need for Y group products is medium. The variation coefficient is the most applicable indicator among the relative indices. The Z group includes goods, the demands for which arise only episodically. It is impossible to predict the volume of sales of Z group goods. The sign, on the basis of which the X, Y and Z groups pertain to the increte positions in the assortment, is the variation coefficient. Between the variation relative indicator the variation coefficient represents the most commonly used relative variation indicator. The variation coefficient is the most applicable indicator among the relative indices.The variation coefficient varies from zero to infinity.

Keywords: Logistic, material flow, stock, method, analysis, stillage, risk, warehouse, goods, nomenclature, management

One of the main components of the urban passenger transport system is represented by bus services, the effective implementation of which depends on numerous factors. Passenger transport problems have been addressed mostly by upgrading the technical parameters of the buses and by adapting them them to the urban operational conditions, which is no longer effective at present, and it is necessary to provide management of public transport of transportation by means of different models ensuring maximum comfort and quality of passenger traffic.he paper dwells on developing the measures required for the effective functioning of urban bus routes, which are of great practical importance.Based on this, it was carried out the analysis of factors affecting the urban bus services, and we have developed measures for improving efficiency of urban passenger traffic by transport companies. transport transports was carried out and we have developed measures to increase efficiency of city passenger transport in transport companies.

Keywords: bus; efficiency; comfort; model; service quality; passenger traffic; urban transport; system.

Based on the results of theoretical and experimental studies at FGBAC FNAC VIM, we conducted a system analysis of the existing gravitational grain cleaning machines and developed a prototype of a gravity-pneumatic seed-seeding machine (VIM-3). His laboratory (preliminary) tests were carried out. The general view, constructive and techno logical scheme of the machine are presented. The prototype of a cleaning machine can purify wheat seeds up to 99.5% by feeding the processed material up to 2.5 t / h with an impurity content of more than 80%, which corresponds to the category of OS and ES of GOST R 52325-2005, as well as to international norms .

Keywords: System analysis of grain cleaning machines, gravity column, pneumatic assortment channel, specific metal consumption, productivity increase

This paper presents an analysis of the development process of the electronic scientific journal "Inženernyj vestnik Dona (Rus)". Conceptually, the journal reflects a new culture of scientific publications based on global and mini Internet platforms. It is shown that the basic advantage of an electronic journal is achieved through the implementation of an open access initiative. From the date of publication, the material is available for the widest possible range of readers. This imposes additional reputational risks on authors and on the journal as a whole, motivates mutual responsibility. Conceptually, the journal "Inženernyj vestnik Dona (Rus)" focuses on the traditional branches of engineering knowledge. The journal supports publications in the light of convergence of engineering methods and professional and scientific competencies of specialists in various fields of science. The journal represents a kind of interdisciplinary scientific engineering forum. The journal implements the initially adopted principle of "development based on science."

Keywords: electronic scientific journal, Internet platform, interdisciplinarity, open access, concept, results

The appearance of new types of polymer gratings on the market, which have other functional and technical-operational indicators, raises the question of new kinematic solutions to their work. In this paper, questions of parametric optimization of the functioning of this type of sieves from the angle of their origin and kinematic sieves are considered. We have carried out a system analysis of existing technological schemes of lattice mills and identified promising areas of modernization.

Keywords: system analysis of technologies, grain separation, grating mill, parametric optimization, seed material, seed injuries, post-harvest grain processing

In this paper we consider the problem of constructing a precise passability model by point cloud obtained from stereo cameras. To solve this problem, we used a hierarchical elevation map. The criterion for dividing cells into smaller ones was extended to take into account the cell's completeness with a limited field of view. The passability model was also supplemented with an algorithm for detecting step obstacles. The accuracy and completeness of the detection of obstacles and a free surface was calculated experimentally on dataset taken in real conditions. The result of the experiment shows that the proposed approach increases the number of detected obstacles without significant loss of accuracy.

Keywords: passability model, elevation map, obstacle detection, stereo vision, principal component analysis

The studies are devoted to a comparative assessment of the average performance characteristics of the timber stands of the regions of the Northern economic area (NEA). The work presents the distributions for the NEA regions: the total timber resources, the timber resources of ripe and over-mature plantations in operational forests, the volume of logging, and the volume of the cut-off area and the species composition of stand. Based on the evaluation of the performance characteristics of timber stands and individual trees, the weighted average characteristics of the model stand for NEA were calculated. The obtained results of a comparative assessment of forest resources can be used in forecasting the productivity and operating costs of forest harvesting machines operating in the conditions of NEA forests.

Keywords: timber resources, timber stock, estimated cutting area, volume of logging, average timber stand, volume of stem, species composition of stand, model stand