The article considers the concentration dependence of dust particles PM2.5 and PM10 on a curb stone on a number of influencing parameters. According to the data of field measurements, a quadratic regression equation was compiled, according to which the factors that have the greatest influence on the spread of fine dust near the roadway were determined. The results of mathematical processing of experimental data are presented in the form of a graph of the confidence area of the observed and predicted values constructed using the STATISTICA software product.

Keywords: PM10, PM2.5, fine dust, roadway, linear city, concentration dependence

When developing the final qualifying paper the problem of choosing the optimal structural concept for bearing and enclosing structures. To solve it, normative technical and economic indicators, variant comparison (trial design) and other methods can be used. The objective of the present study, which is carried out as part of the final qualifying paper, is to search for and develop an algorithm that is understandable for practical use for choosing an effective (in terms of specific consumption) structural concept for a steel truss.

Keywords: optimization, specific consumption, cost value, steel truss, steel structure design, STARK ES, analysis of trusses, optimal structural concept, changing the section type, selection of an effective structural concept

The main types of formwork systems used in monolithic construction are described. The types of formwork by construction, by the type of concreted structures, by the base material, by turnover, as well as the types of formwork during concreting under different temperature conditions are considered. The historical reference of the appearance of the formwork is given.

Keywords: formwork, frame-monolithic construction, structures, vertical, horizontal, large-panel, small-panel, block, volume-adjustable, heating, inventory formwork

The article provides a systematic review of measures to improve the quality of installation work. The question of improvement of installation works of building structures is studied. A set of tools for improving the quantitative assessment of installation work is proposed.

Keywords: organization of construction, quality management

The paper is devoted to the actual problem of ensuring the information security of web-sites. It discusses a method for detecting intentional threats to the confidentiality of information as a result of unauthorized access and is manifested in the form of atypical requests to resources by users. The paper proposes a method based on data mining. Its essence lies in the classification of users' behavior on the basis of information about their actions using an artificial neural network. As a basis for the implementation of the proposed tools, site security audit tools are used as a source of information. The structure of neural network, training methods and practical application are described, and the effectiveness of the proposed methods is evaluated.

Keywords: Data mining, artificial neural network, web-design, machine learning, classification

The article is devoted to the problem of using artificial neural networks as one of the methods of data mining (intellectual data analysis) for classifying the competencies of university students when determining the educational specialization. It describes the complexity of the process of selecting specialization and the associated negative consequences, as well as an approach to solving the given problem using software classification tools. As a basis for the implementation of the proposed tools, the student's information system is used on the website of the University of Tartus, Syria. The article presents data selection criteria to form the training sample, which includes the academic performance in some courses as input vectors. The values of the output vector depend on completed specialization and it get into the training set only if it is properly selected. On the basis of these data, the structure of a multilayer artificial neural network is formed and the learning algorithm is selected, the results of which are reflected on the university's website in the form of advice on the choice of future specialization, which has allowed increase the effectiveness of the educational process.

Keywords: Data mining, artificial neural network, web-design, machine learning, classification

АнглийскийПеревести вGoogleBingThis article is devoted to the development of suhodolnyh pits in the permafrost zone. For the development of fields in the Arctic requires a large amount of sand for engineering training close to roads, well pads, sites for the installation of complex gas treatment, high pressure pump stations, the Central points of separation and other site projects. Development suhodolnyh quarries of sand in the Arctic requires further activities for the preparation of the sand to a condition suitable for construction. Range transport of sand from the quarry to the designed object will be considered acceptable when the object is within 20 km of the planned quarry, the transportation distance is more than 20 km puts an end to the possibility of further implementation of the project and directly affects the net present value of the project. Improvement of technology of development of dry sand in quarries can positively influence the Economics of the projectThis article is devoted to the development of suhodolnyh pits in the permafrost zone. For the development of fields in the Arctic requires a large amount of sand for engineering training close to roads, well pads, sites for the installation of complex gas treatment, high pressure pump stations, the Central points of separation and other site projects. Development suhodolnyh quarries of sand in the Arctic requires further activities for the preparation of the sand to a condition suitable for construction. Range transport of sand from the quarry to the designed object will be considered acceptable when the object is within 20 km of the planned quarry, the transportation distance is more than 20 km puts an end to the possibility of further implementation of the project and directly affects the net present value of the project. Improvement of technology of development of dry sand in quarries can positively influence the Economics of the project

Keywords: permafrost, perennial cryolithozone, quarries, sand, sand, career preparation to sand mining, development of oil and gas fields.production

the design of a new object presupposes not only the functional aspect, but an important factor is the location of the building or structure. The choice of location is one of the fundamental criteria: it is necessary to take into account the infrastructure and architectural appearance of the selected area, the needs of the district or region in the projected facility.

Keywords: constructivism, the architectural appearance, the blue line, multi-center, prototype, monuments, cultural centers, the Great Patriotic war

We consider the method of texts comparison in Russian in the subtask of semantic proximity determination. It is performed a review of existing methods of comparison. It is proposed a method of determination of similarity degree between textual passages within a semantic class. Existing methods are compared with the proposed method and a comparison made by people, in an experiment, which shows the suitability of the proposed method.

Keywords: textual similarity, semantics classes, comparison of texts, semantic schemes representation, textual passages

The problem of functioning of difficult innovative enterprise elaborative modern наукоемкие technologies and wares is in-process considered, therefore the questions related to the priv at all levels of work of such enterprise are very actual and important. The most essential links and control parameters are distinguished, his periodicity is regulated. From the mathematical point of view a problem is taken to the decision of the optimization task put as a task of optimal allocation of resources with the scalar or vectorial criterion of optimization. A few approaches (methods and algorithms) of decision of this task are offered. Using the offered methodology, it is possible to conduct verification of work of enterprise from the point of view of providing of informative safety in acceptable time and with acceptable

Keywords: control parameters, scalar, vectorial criterion, testing, optimization

The possibility of increasing the production of vegetables by different methods of preplant treatment of seed as an example of culture of a cucumber. The technique of obtaining a mathematical model describing the dependence producing vegetables on the methods of preplant treatment. The resulting mathematical model allows the company to forecast prices for the products and the distribution of income of the agricultural enterprise.

Keywords: Vegetables, seed mixture, pre-treatment, nutrient solutions, the electric field, productivity, mathematical model, normal distribution, the theoretical curve, the experimental curve, time series, yield and production

Most important information about an environmental resistance (moisture, cyclic change of the temperature, ultraviolet radiation) of high strength composite material can be received at the compressive mechanical testing. The reinforcing fibers that are oriented along the specimens axis (or are oriented on the small angles relative to this axis) carry the main tencile loading. Conversely, at the compression the elastic and strength properties of the material, basically depend on the matrix properties. The specimens for mechanical testing are usually manufactured as relatively thin rectangular plates by winding or laying-up that corresponds to the ready composite parts. In order to eliminate buckling of the specimen at compressive test, its working length must be very shortened. So, this working part is unavalable for the extensometer instalaltion, and compressive strain of the specimen can be determined by the stroke of crosshead only. This stroke is a sum of very small contraction of the specimen and crosshead displacement due to elastic deformation of the testing machine. We determined the dependence of elastic deformation of the testing machine at the preliminary testing to exclude this deformation from the testing data. We present the features of the compressive testings and their numerical processing at the study of high strength GFRPs, and also the character of composite fracture studied by means of the scanning electron microscopy.

Keywords: Polymeric composite materials, multilayered composites, environmental resistance, experimental technique, compressive testing, scanning electron microscopy

The present research was realized in the field of expanded clay production technology with support ingredient as a waste of biological sewage treatment and charcoal production. The iInfluence of the introduced ingredient on the blowing of clay raw materials was analysed. The comparative physical and mechanical characteristics of samples, the main chemical reactions which took place during the firing of clay with addition of waste in raw materials were provided in article.

Keywords: expanded clay, coal waste, low-melting clays, treatment facilities, blowing, waste water, activated sludge, ecology, construction materials, porosity.

In this article is reviewed the nature of organic hybrid nanocomposites. Promising directions in the field of organic hybrid nanocomposite materials will be methods for the synthesis of multicomponent materials, as well as the type of "net net" and "host-guest". The fundamental problem with the chemistry and physics of nanocomposites is dependent "structure-property". Solving this problem will move from research materials to their purposeful design.

Keywords: nanocomposite sol-gel technology, synthesis, nanoparticles.

In order to improve minimally invasive technique knee arthroplasty authors propose "retractor to retract the patella in minimally invasive total knee arthroplasty," which can improve visualization during surgery to protect the extensor apparatus of the knee joint and reduce the number of complications and "Apparatus for carrying a minimally invasive knee arthroplasty" to improve the accuracy of the endoprosthesis implantation through access «quadriceps-sparing».

Keywords: invasive knee replacement, gonarthrosis, medical instruments