In article traffic safety and capacity of bridge crossings is considered. The road accident which happened on the bridge crossing sharply reduces its capacity and, therefore, all road in general. At emergence of danger to the movement in difficult road conditions the driver is compelled to apply the emergency braking. Thus the road accident won't occur when a distance between cars more or is equal to the size of a stopping way. At determination of length of a stopping way of the car at the emergency braking values of sizes of time of delay of operation of the brake drive and time of increase of delay are used.

Keywords: traffic safety, bridge crossing, capacity, stopping way, distance

This article presents the results of studies on the effect of the erbium chelate complex on the processing of secondary raw materials from polyethylene terephthalate (PET).

Keywords: polyethylene terephthalate, recycling, extrusion, polyisobutylene, chelate complex of erbium.

Modeling and investigation of filters of selective rejection of narrow-band noise with a priori unknown frequency and selective suppression of multidimensional pseudorandom signals of discrete-nonlinear Lorentz system are carried out. The transformation of signal with phase manipulation in the digital selective nonlinear reject filter are studied. The digital functional rejection filters for selective signal rejection by form, synthesized in according to the principle of two-channel invariance theory, in information transmission systems with PSK-signals for suppressing additive harmonic signals of narrowband interference and masking pseudo-random signals of discrete nonlinear Lorentz systems is recommended. Recommendations on the use of digital non-linear rejection filters using mathematical programs are developed and justified.

Keywords: reject filter, narrowband interference, Lorenz system, pseudo-random signal

The questions of desorption of the elemental composition of glass during processing with an electron beam is discussed. Sample silicate glasses prepared by standard technology were studied after polishing by electron beam processing (EBP). Calculated estimates showed that the depth of the surface depletion layer of weakly alkaline elements reaches 20-50 nm. Herewith the temperature front reaches the machining depth of 50 µm.

Keywords: electron-beam, glass, diffusion, desorption, microsystems

A comparative analysis of the methods of heat engineering calculation and an assessment of the efficiency of heat exchange in frame-panel housing construction are presented.

Keywords: Skeleton-panel housing construction, air permeability, heat exchange efficiency, heat and moisture regime

The article deals with the problems of using structural systems with outriggers for high-rise buildings. The analysis of various designs is carried out, the features of their work are specified, the advantages and disadvantages are identified, the areas of their application.

Keywords: high-rise building, structural system, outrigger, skyscraper, column, core of rigidity, strength, reliability, horizontal load, aerodynamics

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

An actual problem of the lack of green spaces in modern cities is considered. Some ways of applying gardening in the structure of the building are suggested, which can solve the indicated problem. The most detailed consideration is the reception of horizontal external landscaping, examples of domestic and foreign experience are given.

Keywords: Green architecture, green spaces, vertical landscaping, atrium landscaping, horizontal outdoor landscaping, house-garden decoration of building facades, roofs in operation

The safety of technological processes in the performance of loading and unloading, construction and installation works is becoming increasingly important. The desire of manufacturers to increase the power characteristics of load-lifting mechanisms and their number makes their mark on the unsatisfactory OSH management system in general, plus the discipline and unsatisfactory technical condition of the equipment leave much to be desired. The situation is not better with observance of elementary safety standards, which, as a rule, are skeptical not only for the working class, but also for engineers and managers who do not conduct personnel training, are not interested in the application of personal protective equipment (in rare cases), attestation of workplaces, everything is done formally, as a result of which the picture is not formed in the best way.

Keywords: safety engineering, construction, cranes, industrial injuries, construction and installation works, industrial accidents

The system analysis of the main directions of the fourth scientific and technological revolution, called "Industry 4.0" in the field of road transport, is conducted in the article. The essence of the industry 4.0 is the development of the digital economy using cyberphysical systems, the Internet of things and large data. Applicable to road transport can be identified three areas: the creation of an unmanned vehicle, the development of technological support for the movement of trucks in the convoy, the development and implementation of "automobile Internet". At the same time, there are a number of technological, legal and ethical problems that hamper the large-scale development of a new generation of transport.

Keywords: Industry 4.0, unmanned vehicle, Internet of Things, Cyberphysical systems, autonomous transport, cloud technologies

The issue of quality, reliability and safety of the final products is under consideration. Process approach is the base of quality control system, and mon-itoring program is regarded for illustrative purposes.

Keywords: Quality, processor approach, quality management, monitoring

In article traffic safety in intensive transport streams on bridge crossings is considered. In a case when the bridge crossing has on one lane in each direction, at repair of a half of width of the carriageway - density of a transport stream sharply increases. The increase in density of a transport stream leads to change of speed of the movement of vehicles and to reduction of minimum safe distance between the cars moving in the passing direction on the bridge crossing during its repair or reconstruction. At the movement of vehicles with minimum safe distance specified in the table the maximum capacity of the bridge crossing at its repair or reconstruction will be provided.

Keywords: traffic safety, bridge crossing, intensity of the movement, repair of the carriageway, minimum safe distance

The main maintenance of a diversification of production as activity of subjects of managing is considered. being shown in purchase of the operating enterprises, theIn this work, we carried out computer simulations of the equilibrium polarization in the ferroelectric noise within the two-dimensional model Ishibashi in the case of deposits and intra-parietal areas. We considered different configurations influence of thermal noise. The analysis revealed flicker noise in the simulated time dependence of the current strength.

Keywords: simulation, polarization current, domain walls, the noise, Ishibashi model, intra-region, parietal region

Piezoceramic frames made of PKP-12 material with porosity up to 50% are made. The effect of the total, open and closed porosity on the properties of porous piezoelements on a given piezoelectric material is studied. Hydrostatic tests of porous piezoelements have been performed to determine the pressure at which irreversible changes occur.

Keywords: piezoceramics, PKP-12, piezocomposites, porous piezoceramics, piezoelectric materials, ferroelectrics, PZT, hydroacoustics, hydrophone

In the Landau theory of phase transitions taking into account thermal fluctuations of the computer modeling of ferroelectric polarization noise. Based on the spectral analysis, thermal and polarization noise are investigated. The presence of 1 / f noise in the polarization spectrum is detected.

Keywords: ferroelectric, modeling, polarization noise, thermal noise, Fourier transform.