Category Archives: Issue # 1(12)

ANALYSIS OF THE ALCOHOLIC PSYCHOSES AND ALCOHOLISM INCIDENCE BASED ON THE RESULTS OF FORECASTING AND CLASSIFICATION MODELING

UDC 616.89

V.P. Kosolapov, I.I. Manakin

The authors analyzed the alcoholic psychoses and alcoholism morbidity of the population of the Russian Federation, Central Federal District and Voronezh Region based on results of forecasting and classification modeling. From the time-series analysis the authors revealed major trends in population morbidity by means of exponential smoothing and gave short forecasts. The paper classifies the districts of Voronezh Region with a view to alcoholic psychoses and alcoholism incidence that allows to outline the areas with favorable and unfavorable situation in terms of the current state and its evolution.

Keywords: classification modeling and forecasting, time-series analysis, exponential smoothing, alcoholic psychosis and alcoholism, classification of geographical units.

Full text:
KosolapovManakin_1_16_1.pdf

THE CHARACTERISTICS OF TWO-DIMENSIONAL PERIODIC COMBS WITH DIELECTRIC WAVEGUIDE

UDC 621.396

A. A. Maximova

The paper discusses the issues of diffraction of electromagnetic waves on reflective comb with double periodicity is covered by a dielectric layer. The algorithm, which is considered, based on the method of integral equations for the problem of determining the currents on the surface of the comb. The obtained result can be generalized to two-dimensional comb. According to the found current density distribution on the surface of the comb element can be determined of the scattered electromagnetic field.

Keywords: scattering of radio waves, diffraction, two-dimensional-periodic comb filters, dielectric waveguide.

Full text:
Maksimova_1_16_1.pdf

RESULTS OF COMPUTATIONAL EXPERIMENTS ASSESSMENT OF SAFETY OF OPERATORS
MIXERS ASPHALT PLANT

UDC 621.396

S.A. Sazonova, S.D. Nikolenko, M.V. Manohin, V.J. Manohin, E.I. Golovina

The questions assess the working conditions of operators mixers asphalt plants in terms of hazards and risks in the industrial environment. In assessing the working conditions are analyzed hygienic criteria, biological factors, indicators of the severity of the labor process by physically dynamic loading, as well as in terms of intensity of the work process. The results of computational experiments based on the integral point scoring severity of labor.

Keywords: computational experiment, the severity of the labor, hygienic criteria, biological
factors, tension.

Full text:
SazonovaSoavtori_1_16_1.pdf

THE DEVELOPING AND SOFTWARE ANALYSIS EVALUATION ALGORITHM OF THE LEVEL JF SIGNAL OF WI-FI

UDC 621.396

E.N. Kazakov

In the paper the analysis of methods of wireless data transmission is given. It is noted that wireless technologies are not given opportunities to fully ensure the stable operation of the network, without performing exact calculations. The effects are indicated that arise in the normal propagation of electromagnetic waves. Algorithm for estimation of level of Wi-Fi is formed. A software implementation of this algorithm is created.

Keywords: propagation of electromagnetic waves, Wi-Fi, data transfer.

Full text:
Kazakov_1_16_2.pdf

THE COMPARATIVE ANALYSIS OF SCADA-SYSTEMS FROM THE POINT OF VIEW
MAINTAINANCE OF TECHNICAL OBJECTS

UDC 621.396

E.N. Kazakov

This paper analyzes the characteristics of building information-measuring systems. The SCADA systems are reviewed that have official distributors in Russia and is designed to work with Windows. Their basic structure, is specified marked by the practical application. The analysis of methods of forecasting of the technical condition of the various systems is given. The factors influence the choice of method of forecasting are shown.

Keywords: information-measuring system, forecasting, program.

Full text:
Kazakov_1_16_1.pdf

SOME FEATURES OF BUSINESS ANALYST WORK IN THE IT FIELD

UDC 37.026

T. V. Melnikova

The paper discusses the role of business analyst in the IT field. Specified competencies of a business analyst. Reviewed each part of the hierarchy in the analysis of events. The analysis of influence of temporary files on the quality of work of a business analyst. Events are considered as counters. They are used for measuring how often visitors interact with different parts of our content./i>

Keywords: business analytics, technique, IT field, analysis of events, software.

Full text:
Melnikova_1_16_1.pdf

THE POSSIBILITY OF USING THE METHOD OF INTEGRAL EQUATIONS AS THE BASIC
APPROACH IN CAD SYSTEMS ANTENNAS

UDC 621.396

S.S. Scherbatyh

The paper discusses the features of the method of integral equations on the basis of which it is expedient to conduct electrodynamic modelling of diffractive structures that are part of antenna-feeder devices. The criteria are specified on which to evaluate the effectiveness of the methods used. The advantages of the method of integral equations for analysis of objects with complex shapes are given. The advantages of using the method of integral equations for the design of magneto-dielectric antennas are considered.

Keywords: electromagnetic wave propagation, antennas, method of integral equations.

Full text:
Scherbatyh_1_16_1.pdf

THE KEY FEATURES OF MATHEMATICAL MODELLING OF ENVIRONMENTAL AND
HOTEL SYSTEMS

UDC 519.68

T. V. Melnikova

In paper the features of creation of mathematical models for analysis of ecological and hotel systems are considered. The characteristics relevant to the prediction of the ecosystem continues are marked. The selection of the deterministic approach to modeling of ecosystems, compared to the stochastic approach is considered. To analyze hospitality systems is proposed to use the theory of queueing systems. The different models of hotel management systems are shown. The issues related to the prospects of using automated management systems in hotels are discussed.

Keywords: ecological system, mathematical modelling, hotel system.

Full text:
Melnikova_1_16_2.pdf

THE OPTIMIZATION OF TECHNOLOGY OF VOICE TRANSFER IN LTE – VoLTE WITH GOOD QUALITY AND LOW-POWER MOBILE DEVICES

UDC 621.396

A. V. Lypynsky

The paper discusses the issue of reliable voice transmission with good quality low energy consumption of mobile devices. Investigated the benefit of using header compression. Presents the average scores of opinions of users in the case of various voice application. The comparison of the voice quality by using one of the voice applications under different network load. The example of optimization of power consumption of the mobile terminal.

Keywords: voice broadcast, mobile device, data compression, radio network optimization.

Full text:
Lypynsky_1_16_1.pdf

A HYBRID METHOD FOR CALCULATION OF SCATTERING CHARACTERISTICS OF OBJECTS ABOVE A ROUGH SURFACE

UDC 621.396

T.V. Glotova

An iterative hybrid method is considered combining the Kirchhoff approximation and the multilevel fast multipole algorithm (MLFMA) is studied for electromagnetic scattering from three-dimensional (3-D) object above a two-dimensional (2-D) random dielectric rough surface. In order to reduce computational costs, some types of speed calculations were used. First, it is used to speed up calculations of electromagnetic field in far field approximation (FAFFA) of the process of interaction between the rough surface and the object. Secondly, based on the mechanism of scattering on a rough surface, and derived a rule for moderately rough surface bistatic scattering, which can further increase the speed of iteration. Compared with traditional methods, a hybrid the method of procedure is sufficient for analysis scattering of 3-D object above random rough surfaces.

Keywords: scattering of electromagnetic waves, method, hybrid method, modelling,
rough surface.

Full text:
Glotova_1_16_3.pdf