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

Researches of hardness of various steel grades for the purpose of determination of density of their distribution and distribution of extremes of selections are conducted. Results of the received researches are used for definition of a resource of details with use of a graphic method of transition from selection to set.

Keywords: selection, fatigue resource, population of final volume

The article raises the problem of soil compaction. The analysis of the dependence of the compaction duration on various factors, such as: the type of soil, its humidity, its physical properties, as well as volume. The review of technologies of compaction applied at the moment in construction is given. The results of the technologies used in the construction of the project Yug. The second stage of construction of mnpp Volgograd-Tikhoretsk. GPS of Tinguta"". The study will allow construction companies to assess the economic feasibility of the use of soil compacting machines and mechanisms.

Keywords: compaction, soil moisture, soil density, cohesive soils, unrelated soils, compacting mechanisms, vibration-dynamic effect, compaction depth, effective methods of compaction

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 article once again highlights the problem of injury growth in our country. The article presents the developed digital jumpsuit for work at height, excluding the possibility of violation of the rules of TB, controlling the integrity of the belts. It is concluded that human security, his life can not be given to him only in a rapidly developing technogenic society, a person should actively help digital technology

Keywords: poor working conditions, simple protective measures against the fall of man, fiber optics, probability, risk, and digital technology

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

The econometric analysis of GDP per capita in the Russian Federation is being given. The number of the departured people from the Russian Federation, nominal average charged wages and exports volume are used as the exogenous variety. The received model of the multiple linear regression is being studied for quality.

Keywords: gross domestic product, GDP per capita, econometrics analysis, multiple linear regression model, endogenous variety, exogenous variety, heteroskedasticity

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 deals with the problem of formation and management of securities portfolio, which is actual for the developing economy. To solve it, an active strategy is used, which implies changes in the structure of the portfolio. The shares of assets are included in the portfolio using the Quasi – Sharpe method. The model is used in volatile stock markets for efficient performance. Research is conducted on the example of the dividends of large foreign companies Model "Quasi − Sharpe" combines the yield on a bond with a yield of a single portfolio, and the risk of the security using linear regression functions. The risk in this method is measured using the beta β coefficient, which is characterized by a degree of sensitivity to changes in the profitability of a single portfolio. Using the data Analysis package, you can find regression equations that allow you to forecast for future periods of time.

Keywords: an effective portfolio, portfolio theory, expected return, rate of return, given the risk, investment, securities, trend line, forecasting, model Quasi -Sharpe

The aim of this work is to research and directly develop a virtualization service for mobile applications in the browser. The paper describes possible ways of virtualization of mobile applications, and the emphasis is on the most correct method from the economic and technical point of view, namely, hardware virtualization. The possibility of creating such a service is justified, the reasonability of this kind of systems is explained, in the conditions of increasing coverage of the Internet network. The process of system development, a stack of applied technologies, problems and their technical solutions, as well as further ways and technologies for improving this system are described.

Keywords: Cloud computing, virtualization, hardware virtualization, application services

The article discusses the problem of building a portfolio of securities. Analyzed the two models on the basis of sample data on the course of profitability of the five firms according to the site Investing.ru. A comparative analysis of risk of return of the portfolios obtained by the models of black and Markowitz. With the help of MS Excel software tools, a portfolio of minimum risk securities by Markovits is formed. Black and Markowitz models are compared, the conclusion that the investor must finally accept is formulated.

Keywords: Investments, portfolio theory, expected return, yield, variance, risk, securities, minimum risk, value, equity, black, Markowitz

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

A brief overview of the AutoCAD software product is presented, which is a universally recognized world leader in the field of graphical work automation and is gaining increasing popularity in our country. Using the presentation capabilities of AutoCAD, the authors created an electronic training program on engineering graphics, while solving a two-fold problem: on the one hand - to consolidate and popularize the classical educational material at the rate of engineering graphics; on the other - to instill in future engineers the skills of owning a modern "electronic kulman".

Keywords: AutoCAD, Autodesk, presentation, slide, script, engineering education, engineering and computer graphics

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

Forecasting is required for effective control of the processes of electric power transmission and consumption, load estimation, and reduction of technical and commercial losses. The methods based on artificial neural networks are the most universal. However, practical application of those methods is limited by the complexity and the cost of software and by high requirements to the personnel who create and operate such systems. We propose two ways of the interaction between providers and consumers of forecasts of electric power consumption that solve those problems. The first way implements "model as a service" conception and the second way implements "forecast as a service" conception.

Keywords: electricity demand forecasting, information system, artificial neural network, forecast provider, forecast consumer, way of interaction

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

With the management of projects, any customer in the industrial oil and gas production sector faces. This article discusses important features of project management, highlights the main stages in this area, briefly describes each stage separately. For the organizational structures of the Customer company it is very important to develop an internal control plan and implement projects, as it eliminates many of the errors that may occur at the stages from the origin of the investment plan to completion of the design and survey works. At each stage in this economic process of the firm, there is interaction of all the main structures (departments, divisions). In order to avoid chaos in micro-relationships between departments, the firm develops internal documents (standards) that strictly regulate all communications between responsible employees.

Keywords: management, project, customer, oilfield, valuation, risks, technical and economic concept, design, implementation, schedule, quality control

As a result of the implementation of threats to information security, enterprises suffer significant material and reputational losses. The paper suggests a methodologyAs a result of the implementation of threats to information security, enterprises suffer significant material and reputational losses. The paper suggests an approach to conducting a cluster analysis of information security threats, which allows to obtain groups of similar threats and to identify the possibility of reducing the damage from their implementation. The data on the realized threats are analyzed by using different clustering methods for a different number of clusters in order to share the threats in the best possible way. Realized threats are described by the damage that arose from the implementation of the threat and the duration of the elimination of the consequences of the threat. Clustering allows you to identify common characteristics of threats in each group. Analysis of the resulting breakdown of a variety of information security threats into clusters will allow separating threats into groups with the identification of those threats, the implementation of which leads to the most negative consequences and causes the greatest material damage. Thus, security specialists of the enterprise can take measures to protect information, direct efforts to provide protection from threats with the greatest negative consequences. The proposed approach to the clustering of threats to information security made it possible to analyze the enterprise protection system, identify approaches to reduce losses from vulnerability, and identify ways to improve the level of protection. for conducting a cluster analysis of information security threats, which allows to obtain groups of similar threats and to identify the possibility of reducing the damage from their implementation. The data on the realized threats are analyzed by using different clustering methods for a different number of clusters in order to share the threats in the best possible way. Realized threats are described by the damage that arose from the implementation of the threat and the duration of the elimination of the consequences of the threat. Clustering allows you to identify common characteristics of threats in each group. Analysis of the resulting breakdown of a variety of information security threats into clusters will allow separating threats into groups with the identification of those threats, the implementation of which leads to the most negative consequences and causes the greatest material damage. Thus, security specialists of the enterprise can take measures to protect information, direct efforts to provide protection from threats with the greatest negative consequences. The proposed approach to the clustering of threats to information security made it possible to analyze the enterprise protection system, identify approaches to reduce losses from vulnerability, and identify ways to increase the level of protection.

Keywords: information security, the threat of information security, the damage from the implementation of the threat of information security, cluster analysis

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

The paper is devoted to the construction and expansion of such linguistic resources as dictionaries and thesauri using microtask-based crowdsourcing. Approaches for microtask complexity estimation, worker ranking, and adaptive task assignment are discussed. The implementation of these approaches is available in a software system designed using the three-tier architecture.

Keywords: linguistic resource, language resource, crowdsourcing, synset, relation, microtask, computational semantics, natural language processing, human-machine system, data mining, software

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

One of the key points of planning individual iterations in IT projects is the forecasting of the so-called focus factor. More specifically, it is the concentration of the workforce and the team's efforts to perform tasks. The purpose of this work was to clarify the previously obtained results on the choice of optimal methods of such prediction. This used another criterion for the quality of the forecast, not a mistake in planning the performance of the iteration, as before, and the inaccuracy of the prediction of the focus factor. The analysis carried out according to the new criterion fully confirms all the results obtained earlier. Among the considered mathematical methods of forecasting for planning in iterations of IT-projects the most suitable is extrapolation by moving average (both arithmetic and geometric) for the previous 1-4 periods. The error of the focus factor forecast for them is about 4.7%. Another aim of this work was the formalization of the intuitive methods of planning undertaken by specific teams of developers of projects. On this basis, within the framework of the theory of fuzzy sets with the use of linguistic variables, a heuristic forecasting model is developed. Numerical experiments on the basis of specific production data have shown for it a higher accuracy of the forecast than for extrapolation. The error was about 3% against 4.7%. The paper also presents a combined model using elements of both the heuristic approach and the above-mentioned extrapolation. It showed even higher accuracy of the forecast, with a mean square error of about 1.5%. The results obtained in this work, in our opinion, completely solve the problem of the optimal method of planning individual iterations in the implementation of IT projects.

Keywords: management, IT-project, iterative nature, iteration planning, forecast, focus factor, moving average, standard error, linguistic variables, fuzzy analysis, heuristic model