No 1 (2017)

SYNTHESIS INERT-INERTIAL OSCILLATOR
Popov I.P.

Abstract

We consider a system with uniform oscillatory elements, namely, two massive loads (inert-inertial system). The possibility of occurrence of such a system free of harmonic oscillations which, as in the conventional oscillatory systems is caused by that its elements are opposite character reactivity. The oscillating system with homogeneous (inert) components opposite reactivity is achieved by summing the spatial shift (p/2) and phase shift (p/2). The inert-inertial oscillator there is a mutual exchange between the kinetic energies of loads. Unlike traditional vibration systems free vibration frequency oscillatory systems with homogeneous elements do not depend on the system parameters and determined solely by the initial conditions, so that they can make available to any harmonic oscillations initially set frequency.
Прикладная математика и вопросы управления / Applied Mathematics and Control Sciences. 2017;(1):7-13
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TRANSFORMATION OF INVERSION IN THE SURFACES DESIGN PROBLEMS
Voloshinov D.V., Kaznacheeva E.S., Khaibrakhmanova E.S.

Abstract

The article is devoted to the problems of automated synthesis of constructive models that allow to represent the surface as a point, which is the result of a complex geometric transformation. Unlike surface modeling methods that use the principles of approximation, the constructive model is a tool based on the geometric definition of the surface. From the point of view of object-oriented design, such a model is a constructor that implements the task of synthesizing a surface instance as a representative of a class of surfaces with common constructive geometric properties.
Прикладная математика и вопросы управления / Applied Mathematics and Control Sciences. 2017;(1):14-26
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ANALYTICAL MODEL OF SURFACES BASED ON THE SPACE’S COORDINATION BY HELIX AND ELLIPSES
Kokareva I.A.

Abstract

In the article the algorithm of surface’s construction on the basis of a construct-parametrical method of a shaping by immersion of any line in congruence is considered. The parametrical equations of coordination of space by helix and ellipses, on the basis of which u -, v - and w -congruences are defined, are received. The surfaces of the resulting congruences are visualized. The general structure of surfaces is determined.
Прикладная математика и вопросы управления / Applied Mathematics and Control Sciences. 2017;(1):27-36
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Geometrical model the process of distribution strength characteristics in a concrete column
Konopatskii E.V., Voronova O.S.

Abstract

The paper presents the method for geometric modeling processes and phenomena in BN-calculation, using for example the process of distribution on strength characteristics over the entire volume of the concrete column. The initial data for modeling were three strength characteristics measured at various points of the column in an amount of 125 pieces. As a result of the simulation, the hypersurface of the response was obtained, passing through 125 predetermined points, defined as three-parameter set of points and belonging to four-dimensional space. The proposed model makes it possible to determine all the necessary characteristics and properties of concrete in the core of any zone and in other parts of the column, and also to investigate them for extremes by mathematical analysis methods.
Прикладная математика и вопросы управления / Applied Mathematics and Control Sciences. 2017;(1):37-44
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STATEMENTS OF THE SELECTION PROBLEMS THE PLACE FOR OPENING THE CORNER STORE
Alekseev A.O., Kleimenova A.A., Spirina V.S.

Abstract

Space-search problem classification system is create for retail opening. Classification criterions is location, quality of retail, the target audience, category of commodities and the type of problem to be solve: search the place of a new commercial real estate object; choice of premises on the first and basement stores of the existing apartment houses for transfer to category of the non-residential premise and the subsequent placement of commercial real estate object; the choice of the room among the existing commercial real estate objects. For the solution of the tasks answering a question "Where we build and/or opening a commercial real estate object?", the models belonging to the class of gravitational can be used. However, for the task solution of optimum location search for a construction and/or opening a commercial real estate object with set quality, focused on a specific target audience with a specified trade segment, these models cannot be use. Solution to these problems is competence retail specialists. Shop at home is object for research this publication. Meaningful, conceptual and mathematical problems definition is represented for the search optimal location for open or/and building corner shop. Mathematical model based on Huff’s modification model; it designed for measure commercial object consumer attractiveness.
Прикладная математика и вопросы управления / Applied Mathematics and Control Sciences. 2017;(1):47-60
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Optimization Mathematical model Costing of medium PRESSURE COMPRESSOR engine nk-25
Greshnov I.V., Greshnova E.A.

Abstract

Compiled optimization mathematical model, which allows the engine to minimize the cost of the medium pressure compressor NK-25 with a view to preserving its qualitative characteristics. It is proposed to reduce the number of compressor stages, increasing the expense of the average diameter of the compressor changes shape with the PHD (permanent hub diameter) on the CPD (constant peripheral diameter) and the diversity of the compressor from the axis of rotation, taking into account the size of the motor housing. The model takes into account the cost of the compressor blades, rotors and stators, as well as the cost of the compressor assembly. There is a limit on the weight of the compressor, which after optimization should not exceed the original.
Прикладная математика и вопросы управления / Applied Mathematics and Control Sciences. 2017;(1):63-69
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IDENTIFICATION FOR regression dependence of the main macroeconomic indicators during the crises of the Russian Federation
Kuznetsova O.A., Zueva M.S., Iarygina A.A.

Abstract

The aim of this work is to identify prerequisites crises. The subject of research were the main macroeconomic indicators of the Russian Federation in the years of crisis, such as GDP, the dollar price of oil, inflation, unemployment. In the course of work we were considered the three main indicators of the Russian Federation crises: the crisis of 1998, the 2009 crisis and the crisis of 2014-2105 years, and also examined the causes of them. During the work they were calculated correlation coefficients of oil and the dollar in times of crisis, and revealed the basic laws. The study, paired regression equations were formulated for oil rates and the ruble exchange rate against the dollar, and for GDP and inflation, GDP and unemployment. As a result, we identified the major predictors of crises.
Прикладная математика и вопросы управления / Applied Mathematics and Control Sciences. 2017;(1):70-80
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Econometric modeling of bank's income volume dependS on ICT and advertising USING R
Glukhov V.N., Kuznetsova O.A.

Abstract

А study of the bank depending on the volume of income from its investments in advertising and ICT (information and communication technology) using regression and correlation analysis. It is shown how important these factors are and in what field of advertising it is more profitable to the bank to invest money in order to have a big profit compared with other banks in the future. The model is based on the least spreads method. Checking the adequacy of the model was carried out using Fisher's F-test and the determination of the significance of the regression coefficients was carried out using Student t-test. Calculations are made in the software environment RStudio by programming language R.
Прикладная математика и вопросы управления / Applied Mathematics and Control Sciences. 2017;(1):81-86
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DISCUSSION OF DATA MINING, MASS APPRAISAL AND MANAGEMENT OF REAL ESTATE REGIONAL MARKET
Alekseev A.O., Kharitonov V.A., Iasnitskii V.L.

Abstract

Discusses the advantages of using “information approach” to modeling the regional real estate market. Shows the importance of considering the influence of mega-, macro-and meso-economic factors when building computer models of market, suitable for analysis and forecasting of the market value of residential properties, and mass cadastral valuation, the underlying effective tax system to more fairly distribute the tax burden. In addition, mining models “what if” allows you to see how changes in the key pricing factors will affect the market value of objects, what is the decision support aimed at the development of the real estate market. It is concluded that such models can be embedded in a monitoring system of the housing market and updates inventory tables real estate regions in real time, when change of the economic situation in the region, the country and the world entails an automatic update of inventory data.
Прикладная математика и вопросы управления / Applied Mathematics and Control Sciences. 2017;(1):87-99
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