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 article illustrates the problem of measuring the speed glider component targets in the presence of a turboprop effect of the reflected signal in a pulse-Doppler radar, proposed a model turboprop signal component and an algorithm for its suppression

Keywords: spectrum; radar; echo signal; turboprop effect; gliding component, micro-Doppler, radar

The main maintenance of a diversification of production as activity of subjects of managing is considered. being shown in purchase of the operating enterprises, the organizations of the new enterprises, redistribution of investments in interests of the organization and development of new production on available floor spaces. The most important organizational economic targets of a diversification of management are presented by innovative activity of the industrial enterprise.

Keywords: algorithmic design, generative design, digital method, parametrism, object genome, script, Grasshopper plugin, self-regulation, modeling tools, simulation, optimization process

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

Dynamic memory devices are designed to generate a sequence of copies of a pulsed radio signal with a specified delay time. Such controllable devices can be considered as delay lines with a variable delay time and can be used in various signal processing systems. The results of statistical modeling of the influence of the parameters of couplers on the identity of the formed copies in a dynamic memory device with a binary fiber-optic structure are presented. The possibility of increasing the copy identity is proved by sorting the existing couplers when installing them into a binary fiber-optic structure. With a cascade number of more than 7, an increase in the identity of the copies is possible even when compared with the use of ideal couplers.

Keywords: dynamic memory device, binary structure, copy identity, coupler, tap coefficient

This article provides information about the state of the housing stock of the Russian Federation, provides statistical evidence, and the reasons for the current state of residential buildings and structures. The influence of modernization on the preservation and restoration of the housing stock of the Russian Federation is indicated, its expediency and main types of works are given, the results of modernization are presented

Keywords: housing stock, housing problems, modernization, operational parameter, the desirability of modernization, depreciation of the building, main types of works, replacement of equipment, add-in floors, changing the geometry of the premises

In the article results of the analysis of analytical dependences and results of the computing experiment executed in Lyr-CAD environment are considered. The purpose of the performed work is a quantitative assessment of the reduction in strength of beams of monolithic reinforced concrete overlappings caused by errors made during the performance of reinforcement work. In particular, an increase in the thickness of the protective layer of concrete and the consequent reduction in the working height of the section are considered. The data analyzed for both reference and span cross sections are analyzed. In total, four series of samples were selected, differing in the class of concrete (B15, B20, B25 and B30). Each series consisted of 9 samples having different working height sections in the reference and span sections. The working height of the section varied from 5 to 22%. The finite element model was created in the LIRA-CAD environment. In the course of the analysis, the effect of changing the working height of the section on the area of ​​the reference and passing reinforcement, selected for strength, was investigated.

Keywords: It is established that the degree of influence of the deviations of the position of the reinforcement from the design in the reference sections and in the span is different. The greatest danger is represented by the support sections, that is, the overlapp

In article the developed circuitry decision with high response characteristics of the multistage programmable attenuator very high frequency of power on the basis of low-sized microstrip elements and heterojunction GaAs HEMT of structures is considered. The main aspects of design and functioning of the diagram are described. Results of simulation mathematical modeling are given in a software package of Microwave Office.

Keywords: MMIC, low-sized microstrip structures, programmable attenuator, heterojunction, HEMT, GaAs, Microwave Office.

The authors examine the peculiarities of fiber-optic cable electric parameters changes under the influence of a strong homogeneous alternating electromagnetic field. Variants of the process which can be used to describe the influence of the electromagnetic field on the fiber-optic cable are proposed.

Keywords: Fiber optic cable, electrothermal degradation, kevlar, electrical conduction

The article deals with the design of bimetallic bridges, their advantages in comparison with reinforced concrete bridges. Its given the characteristics and chemical composition of conventional bridged steel and high strength steels. The scheme of dividing continuous lash of span structure into spans is considered and the ratio of spans with equal bending moments is calculated. Its given the calculation of an effective three-span system. The existing efforts and bimetallic standard blocks of three types are proposed for them. Blocks are made of two types of steel: conventional cross section of bridge steel, heavily loaded cross section of structural high tensile. In block A, the lower belt; in block B the lower belt, the wall and thongs of the orthotropic plate; in block K the lower belt and the beam wall is made of strong steel. Such unification will significantly reduce labor intensity and weight of the structure.

Keywords: bimetallic, span structure,steel grade,enveloping the diagram, normal stresses, mounting block, sheet hire

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

The problems of reconstruction of transport infrastructure and road network in residential areas are very important. Transport directly affects the labor and cultural activity of the population, largely determining the technical and social progress of society. Transport highways and street-road network form the frame of the city, form its planning structure. Gravity retaining wall in cross section is a trapezoid with base width of 1.0 m and a width of the top of 0.3 m. the length of the angled sections of the retaining walls were determined from the conditions of placement of the pit for their buildings, side streets the Moscow highway and technical strip for lining of engineering communications. The front surface of retaining walls has a curvature of R=15.8 m. similar to the front surface of the side walls of tunnel overpasses. Frame retaining walls are an inverted U-shaped frame. The front surface of a retaining wall, consisting of paired radial curves of radius R=15.8 m and R=1.8 m. the curvature of the front retaining walls similar to the front surface of the side walls of the underpasses of tunnel type.

Keywords: problems of road construction, roads, reconstruction, Kurumoch, strip, public transport, planning, transportation

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

The results of studies on the development of composition gypsum solution mixtures on the pumice with the application of a multifunctional additive D, are represented. Are proposed the compositions of mortars on composition gypsum that binding and ashes, that make it possible to substantially improve the physicomechanical properties of solution mixtures and solution. The introduction of multifunctional additive D -5 to solution mixtures makes it possible to improve the properties of composition solution mixtures. The developed composition gypsum solution mixtures correspond to requirements ALL-UNION STATE STAN. 28013–98 and have low prime cost due to the use of the pumice

Keywords: gypsum, portland cement, pumice, additive D -5, composition gypsum mix, transverse strength and compression, density, the coefficient of the softening

Theoretical studies of the temperature distribution during laser heating of the TiO2 precursor film on the FTO/glass substrate have been carried out. The simulation was performed on the basis of a numerical solution of the heat equation in the Matlab program to determine the energy density of the laser radiation necessary for crystallization of TiO2. It was shown that on the surface of the TiO2 precursor the temperature reaches a maximum value at a time point of 133 ns with the Gaussian temporal form of the laser pulse. The optimum energy density for crystallization of the TiO2 precursor film with the nanosecond pulse duration is 1.3-1.6 J/cm2, when the film thickness temperature corresponds to 400-500 °C. The obtained results of the simulation are consistent with experimental studies.

Keywords: numerical simulation, laser heating, temperature distribution, TiO2 film, solar cell