No 2 (2012)

Calibration of stress meter

Kalmakova A.V., Dkhar P., Uzintsev O.E.

Abstract

The purpose of calibration stress meter is to determine what strain σ or elongation of the scale corresponds to one unit. It is more convenient to express the division value of the strain. The paper proposes to determine the actual price of the scale division of Automatic Meter strain (AID-4) in conjunction with a specific type of strain gage load cell calibration on the beam, and is an order of calculating the average price of a division on stresses σ and the relative deformation ε. Instead of two resistance boxes and metrological service proposed, developed and used in the process control device efficiency (balancing and calibration).
RUDN Journal of Engineering Research. 2012;(2):5-15
pages 5-15 views

Analysis of pressure stabilizer, effectivly working under average and high pressures

Rekach F.V., Sinichenko E.K., Hassan N.S.

Abstract

The article describes construction and analysis of pressure stabilizer, which principle of work is based on stability loss of columns.
RUDN Journal of Engineering Research. 2012;(2):16-22
pages 16-22 views

egarding the calculation of the minimum friction stress in combined sewer pips

Kalinin A.V.

Abstract

Based on the M.I. Aleksejev's conclusions about the influence of the friction losses coefficient on the longitudinal and cross pulsations momentary rate in the fluid, was derived a formula for minimum friction stress definition on the walls of the combined sewer and drainage pips. The analysis of sediment grain-size composition of pollutants in combined sewer systems of European cities is given. Performed an analysis of correspondence between calculated friction stress values and friction losses coefficient values, that were obtained from measurements in combined sewer systems of Paris and Nantes. Maximum diameters of the particles of pollution which will be weighed by runoffs in compliance with the rules accepted for disposal networks in Europe and the U.S are determined.
RUDN Journal of Engineering Research. 2012;(2):23-30
pages 23-30 views

Experimental studies of friction modes of bearing nodes with plasticized lubricants

Savchenkova L.V.

Abstract

The matter of the paper is experimental stadies of friction modes of bearing nodes with plasticized lubricants by method of measuring the capacities of lubricant films.
RUDN Journal of Engineering Research. 2012;(2):31-36
pages 31-36 views

Substantiation of diagnostic parameter estimates for motorvehicles imbalance

Natarzan V.M., Schurova O.L., Abu-Nidzhim R.H.

Abstract

The dependence between intracyclic rotary acceleration of crankshaft and engine's disbalance quantity was revealed on the steady-state regime. On basis of this dependence, method of nonseparable appraisal engine's imbalance had been developed.
RUDN Journal of Engineering Research. 2012;(2):37-40
pages 37-40 views

Classification of composite materials

Rogov V.A., Shkarupa M.I., Veliz A.C.

Abstract

This paper is and introduction to composite materials CM. We tried to be simple in our explanation about CM and tried to give the most necessary knowledge to introduce the reader to the amazing word of composites.
RUDN Journal of Engineering Research. 2012;(2):41-49
pages 41-49 views

The equidistant of fraction rational parabola

Epifanov I.V., Vinogradov L.V.

Abstract

An article presents an analytic method and program for designing fraction rational parabola, its evolutes and equidistant. These elements may be used for designing of the turbine blade profiles.
RUDN Journal of Engineering Research. 2012;(2):50-56
pages 50-56 views

Centrifugal superchargers tonal noise at compressor stations and it reduce

Vlasov E.N., Mamaev V.K., Kovalev K.A.

Abstract

Theoretical and experimental studies of tonal noise centrifugal blowers for variousgeometric parameters of elements of the flow path. Recommendations on the choice of optimal parameter values.
RUDN Journal of Engineering Research. 2012;(2):57-67
pages 57-67 views

Information security with message authentication code

Bilyk T.A., Vnukov A.A.

Abstract

This article describes three Message authentication code algorithms. These algorithms ensure the authenticity of the message between two or more parties to the transaction and can be applied in such information bank systems as CFT and so on. Also the results of testing the software implementation of these algorithms are described here.
RUDN Journal of Engineering Research. 2012;(2):68-77
pages 68-77 views

The use of iterative circuits to describe multistage distributed industrial systems

Korneev A.M., Malysh V.N., Smetannikova T.A.

Abstract

Hierarchically ordered sequence of automatic machines, describing the multistage space-distributed system as a set of interrelated objects (stages of processing, equipment, operations) is modeled.
RUDN Journal of Engineering Research. 2012;(2):78-84
pages 78-84 views

Experimental study of formation of gas hydrates

Vorobev A.E., Malyukov V.P., Rygzynov C.T.

Abstract

Considered experimental study of formation of gas hydrates of the gas mixture in the thermodynamic conditions specific to the bottom of the conditions of lake Baikal. The comparison of the processes of hydrate formation in the laboratory and in the natural conditions of lake Baikal.
RUDN Journal of Engineering Research. 2012;(2):85-93
pages 85-93 views

Prognostic resources of mineral deposits by geophysical methods

Portnov V.S., Yurov V.M., Aliyev S.B., Tursunbaeva A.K., Jantassova D.D.

Abstract

In the framework of non-equilibrium statistical thermodynamics a relation between the concentration of component of the ore to its physical properties.On the basis of this communication formulas for calculation of the differentiated and predicted stocks of deposits of minerals are received on the basis of the geophysical data. Methods of magnetic investigation, electric investigation, gravitational investigation and seismic prospecting, and also nuclear physical methods are considered. A comparison of the calculated expected resources with proven for a number of fields in Kazakhstan. The proposed method allows to perform predictive assessment of stocks of deposits in the early stages of prospects with using the results of geophysical methods, while it has a rapidity and to be sufficiently accurate. Non-equilibrium thermodynamics, geophysical methods, and estimated resources, deposits of minerals.
RUDN Journal of Engineering Research. 2012;(2):94-101
pages 94-101 views

Allocation and estimation of prospective areas basing on unique set of methods

Diakonov V.V., Kotelnikov A.E., Kotelnikov E.E., Petrov A.S.

Abstract

In today's world the search for gold deposits are very relevant. The article shows a unique method of allocation prospective gold mineralization areas, basing on paleovolcanic reconstructions, and its estimation by iodometric and lithogeochemical studies.
RUDN Journal of Engineering Research. 2012;(2):102-106
pages 102-106 views

Calculation of primary reserves by method of reserve express-estimation (on the example of major oil and gas deposit in Yamalo-Nenets autonomous okrug)

Denisov S.B., Kotelnikova E.M.

Abstract

The method of reserve express-estimation is a simple and enough accurate for rapid assessment of reserves within the bushes, blocks, sections cut, etc. The article shows the results of our studies, performed by this method, at one of deposits located in Pur fields in Western Siberia.
RUDN Journal of Engineering Research. 2012;(2):107-111
pages 107-111 views

The main aspects of management of social hotels in the hotel business

Salmanova I.P.

Abstract

Many experts in the sphere of management of the hotel business say the common point of view on the problems which keep back the development of the hotel industry as a whole and its separate sectors in particular. Many of them, such as unregulation of operations with land, high cost of property, administrative barriers keep back the formation of the social hotels. At the same time, specificity of activity of a social hotel, from the authors point of view, stimulates to consider social hotels as an object of the state management.
RUDN Journal of Engineering Research. 2012;(2):112-121
pages 112-121 views

Aspects of capital budgeting decision-making process of emerging markets transnational corporations

Alieva D.S.

Abstract

Considers present-day aspects of capital budgeting decision-making in investment projects by transnational corporations (TNCs) in emerging markets. Discusses peculiarities of cash flows of TNC mother and project companies which influence the decision-making in project investment. A number of effective valuation techniques for multicurrency projects has been proposed, taking into account adjustments for various factors.
RUDN Journal of Engineering Research. 2012;(2):122-126
pages 122-126 views

Waste treatment in metropolis - economic-ecological world experience

Alexeenko V.B., Sopilko N.U., Lisitskaya S.M.

Abstract

The article is devoted to the world problems of environmental pollution (municipal wastes). The authors analyze the ways of their management in various countries, compare the methods of their recycling and describe ecological-economic approach to this problem. The authors found out factors providing advanced recycling technologies development and minimizing environmental pollution.
RUDN Journal of Engineering Research. 2012;(2):127-135
pages 127-135 views

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RUDN Journal of Engineering Research. 2012;(2):136-140
pages 136-140 views

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