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scientific edition of Bauman MSTUSCIENCE & EDUCATIONBauman Moscow State Technical University. El № FS 77  48211. ISSN 19940408
# 10, October 2012
Machine Building and Engineering Science
On increasing the accuracy of combined errors estimation in satellite planetary gear units
# 10, October 2012 DOI: 10.7463/1012.0479419 The authors consider practical ways to control combined errors in satellite planetary gear units used by manufacturing plants. The authors adjusted the mathematical model for determination of coordinates of bores for satellites in the planetary gear unit according to the results of indirect measurements, developed and implemented a software algorithm to identify and reject invalid input data. Directions for further research were mapped out.
Study of parameters of hydrosuspension obtained by ultrajetstream processing
# 10, October 2012 DOI: 10.7463/1012.0468067 The article tells about a promising technology for producing suspensions with different functional specifications. The paper is a preliminary compilation of researches conducted at Moscow State University and Bauman University on scientific rationale and implementation of the innovative potential of superpower jetstreamdynamic hydroinfluence on solid body,  in particular, inkjet hydrotechnology for obtaining ultrafinedispersed suspensions. Studies were conducted at the expense of the grant of the President of the Russian Federation № 16.120.11.5069MD and the RFBR grant 120800802a.
Calculation of spherical aerostatic bearings with a given displacement and spindle speed
# 10, October 2012 DOI: 10.7463/1012.0467949 The authors present a model for calculation of a spherical aerostatic bearing with porous boost limiters based on the Reynolds equation of gas lubrication with all fixed summands. The problem is solved in the program Comsol 3.5a by the finite element method. The state of the spindle was determined by the displacement vector, translational and angular velocity. Pressure distribution, support forces and moments, as well as air flow are also calculated. The presented model is used to estimate simplified solutions obtained under different assumptions at designing precision spindles.
Constructional Material Processing in Machine Building
Estimate of springing spherical lining on squeezing with fluid during calibration
# 10, October 2012 DOI: 10.7463/1012.0469199 The authors propose a method of creating analytical relationships to estimate springing of parts after calibration with fluid or with flexible media. The authors obtained formulas for estimation of nominal and random components of springing for facing spherical shape based on results of numerical simulations. The authors show principles of the process and give recommendations on the choice of conditions for calibration.
Power Machine Building, Metallurgical Machine Building and Chemical Engineering
Computer study and calculation of hydrodynamic loads on the valve
# 10, October 2012 DOI: 10.7463/1112.0491484 The authors provide results of computer studies and calculations of hydrodynamic forces influencing the valve. With the use of FEM they determined pressure distribution on the surface of the valve which had the diameter of 6 mm in cavities 1 and 2. Moreover, the authors obtained distribution of axial hydrodynamic forces influencing the valve in the cavity 1 and cavity 2 with the valve shift to a maximum value of 0.6 mm; and they build graphs to compare the values of the hydrodynamic forces calculated by FEM and analytical method. The calculation results are confirmed by experimental data previously published by other authors. With the help of the developed methods the authors determined the effect of changing the temperature of the working fluid (oil) in the range from 40 ° C to +50 ° C of hydrodynamic forces.
Hydroelectric drive with throttle control with enhanced energy efficiency
# 10, October 2012 DOI: 10.7463/1012.0465528 The paper describes the construction diagram of a hydroelectric drive with throttle control. The authors consider an algorithm for controlling the drive, which increases its efficiency. They provide a mathematical model of the drive. The authors propose an algorithm for synthesis of the control signal; the algorithm is based on applying the method of modified Lagrange function for constrained minimization. As a criterion to be minimized the authors selected the flow rate of the pumping station subject to the minimum unevenness of rotational velocity of the output link of the drive. Calculation of points for optimization was performed by the numerical solution of equations for a mathematical model. The modeling resulted in control algorithm that significantly improved energy efficiency of the drive.
Transportation, Mining and Construction Machine Building
Methodology for determination of drive power of promising testbed for measuring exercise development and evaluation of performance of special equipment in fast cars
# 10, October 2012 DOI: 10.7463/1012.0485253 The article describes a method of determining power requirement for drives of prospective test and measurement exercise bench in order to develop and evaluate performance of special equipment in fast cars. The method is based on mathematical modeling of machine dynamics when driving on uneven terrain and simulation of body movements obtained in the model of vibrational stand platform. With the proposed method it was possible to determine the capacity of drives to simulate the dynamics of the housing for a highspeed tracktype vehicle.
Mathematics and Mathematical Modeling
On piecewise linear solutions to the differential inclusion
# 10, October 2012 DOI: 10.7463/1112.0489571 The problem of finding a solution to the differential inclusion in the form of piecewise linear function is examined. Sufficient conditions for the local existence of linear solution to the differential inclusion and procedure for the construction of piecewise linear solution to the differential inclusion were proposed. Illustrative example is considered. The obtained results can be used for mathematical simulation of systems with an incomplete description and optimization techniques.
Regular systems of a quasicanonical form with scalar control and twodimensional zero dynamics controllability
# 10, October 2012 DOI: 10.7463/1012.0465329 The new method is proposed to solve a terminal problem for regular systems of a quasicanonical form with twodimensional zero dynamics and scalar control. The example of terminal problem solving by means of the method proposed is given. The controllability sufficient condition for regular systems of a quasicanonical form with scalar control and twodimensional zero dynamics is proven. The example is represented to illustrate the condition received.
Rook polynomials in multydimensional spaces
# 10, October 2012 DOI: 10.7463/1012.0463238 The authors consider a generalization of the wellknown combinatorial structure of rook polynomials for boards of arbitrary dimension. The authors obtained basic formulas and examples of their application in practice. An algorithm of computing rook polynomials was developed.
Aeronautical and Rocket Space Engineering
Building a rational scheme of preparation of hydrocarbon fuels according to temperature and moisture content with use of liquid and gaseous nitrogen at launch and technical spaceport complexes
# 10, October 2012 DOI: 10.7463/1012.0486647 The authors present results of theoretical investigations of heat and mass transfer processes in devices applicable to perform cooling and dehydration of hydrocarbon fuel in the start and technical space center complex. According to the results of the research the authors built a rational scheme of hydrocarbon fuel preparation system with due regard to temperature and moisture content, using storage tanks and storage containers, barbotage machines for preparation of fuel according to moisture content and temperature with use of cold of liquid nitrogen and the cold produced by evaporation of liquid nitrogen of gas nitrogen in the contact heat exchanger. The authors outline advantages of the proposed system over the systems based on the use of vaporcompression refrigeration machines.
Influence of azimuthal deflection of ions on the beam shape of the engine with anode layer
# 10, October 2012 DOI: 10.7463/1012.0483832 The authors consider influence of azimuthal spin of ions on ion beam divergence in the engine with an anode layer. It is shown that the ion beam takes the form of a onesheet hyperboloid. The authors obtained dependences describing the hyperboloid, bounding curves and asymptotes, depending on the geometry of the engine and the azimuthal deviation angle. Calculation results in the form of graphic dependencies are given.
Structuring and use of knowledge in the operational monitoring of manned spacecraft
# 10, October 2012 DOI: 10.7463/1012.0479653 In this article the authors consider the problem of structuring knowledge about the control process and control object and their application in monitoring manned space vehicles. The authors identified and justified the need to unite the accumulated experience of controlling flights of manned spaceships as a single subject area. Basing on the study, the authors propose a new approach to structuring knowledge about the control process and control objects ; they also consider methods of solving the task and practical application.
Selection of aerodynamic configuration of a probe streamlined by a turbulent swirling gas flow
# 10, October 2012 DOI: 10.7463/1012.0461853 The purpose of the study is to select an optimum componentry for the device "Scanliner". The authors present results of numerical calculations of streamlining of the probe with different componentry in a swirling gas flow. The problem and solution method are described. Reynolds equations are closed by Menter turbulence model. The basis of the calculation method is a method of control volume. The authors provide a calculation of ADF of different componentry of the bodies at changing the angle of the attack and angular velocity of the spin flow. The authors compare experimental results obtained in the installation 'screwring'. Basing on these results, a recommendation can be given re optimal componentry for the device which has a form of a blunt cylinder with two disks.
Instrument Engineering, Metrology and InformationMeasuring Devices and Systems
Magnetoelectric drive with transformer current leads for float gyroscopic devices
# 10, October 2012 DOI: 10.7463/1012.0466325 In the article the authors give a rationale for the selection of the magnetoelectric drive with transformer current leads. They created a mathematical model of electromagnetic processes in the drive with account of steadystate conditions. A vector diagram of voltages and currents showing their mutual relationships was constructed. From these equations the authors obtained analytical expressions of mechanical characteristic and of electromagnetic coefficient of efficiency. For these expressions a family of mechanical characteristics and coefficient of efficiency for different amplitude values and the initial phase of the input voltage was constructed. The authors analyzed the characteristics and drew conclusions.
Predictor method for conflictoptimal interaction of multiborder airdefense identification system and airbased system on the basis of the model "Patriot"
# 10, October 2012 DOI: 10.7463/1012.0466556 The author forms and studies a complex algorithm of interaction between a ground defense system and air forces aircraft, combining task allocation systems for both systems and dynamics of the forecast results. The author solves the problem of synthesis of a control system for multirate forecast on the basis of asymptotic behavior of multiprogram control.
Method of determining the formula of white blood
# 10, October 2012 DOI: 10.7463/1012.0465287 Differential count is one of the main stages of a blood test. In this paper the authors consider methods of determining the formula of white blood on the basis of images of medications, the method of segmentation of nuclei and cytoplasm, and features used for classification.
Adaptation of neural network algorithm to velocities classified by acoustic radiation facilities
# 10, October 2012 DOI: 10.7463/1012.0462849 The authors propose a way to adapt the neural network algorithm based on an assessment of the average frequency of fluctuations in realization of the input signal and tuning of the clock frequency in estimating the number of samples in each interval between zeros of signal implementation.It allows you to achieve invariance of distribution of duration of intervals between zeros with respect to velocity of objects classified by the neural network.
Radio Engineering and Communication
Comprehensive assessment of radio channels by information symbols of MIMOOFDM signals by means of multivariate Kalman filter
# 10, October 2012 DOI: 10.7463/1012.0465244 The authors propose an algorithm which estimates and corrects the MIMOOFDMchannel with frequencyselective fading in phase noise on the basis of the multidimensional digital Kalman filter. The channel model is constructed in the form of autoregressive function based on the Jakes model. White frequency noise is considered as a model of phase impact. Research results of the algorithm show its high efficiency in fast fading. The authors performed parametrical adaptation of the proposed algorithms and formulated approaches to assessment and correction of channel parameters with account of the features and structure of the data packet technology 802.16e /m, EUTRA release 9 (LTEAdvanced).
Informatics, Computer Science and Management
Construction of pseudorandom functions based on generalized cellular automata
# 10, October 2012 DOI: 10.7463/1112.0496381 The paper presents a method of constructing pseudorandom functions based on generalized cellular automata. In this case, LubotzkyPhillipsSarnak graphs  an explicit construction of Ramanujan graphs  are as used as such automata. An empirical study of statistical properties of pseudorandom functions obtained by applying a set of statistical NIST tests was conducted. The proposed method can be used to build Sunits intended for use in block ciphers, hash functions and other cryptographic algorithms and protocols.
Sales management of integrated products distribution at an industrial enterprise by using Internet distribution channel
# 10, October 2012 DOI: 10.7463/1112.0492165 The authors analyze a sales management system at an industrial enterprise and evaluate the role of the Internet in the system. The authors consider the question of improving the process of production distribution at the enterprise through introduction of a new distribution channel. They show a model of choosing rational participation in the distribution channel, the control algorithm assortment policy of the company, and the sales volume prediction algorithm. The authors provide a model of developing a website and the algorithm for its optimization and promotion, as well as the results of introduction of a new distribution channel.
Action models of personal identification systems with antinoise coding procedures
# 10, October 2012 DOI: 10.7463/1012.0486630 The article considers models of systems ensuring identification; it gives an analysis of models of random and sequential retrieval from electronically erasable programmable readonly memory. On the basis of the obtained models the author defines mathematical criteria for evaluating the degree of effectiveness of antinoise coding and storage requirements. In the process of proving the allegations in the probabilistic evaluation it is suggested that the Hamming code be used.
Prognostic analysis of data by ID3O
# 10, October 2012 DOI: 10.7463/1012.0483286 The article deals with prognostic analysis, namely construction of a prognostic model of the decision tree. The introduction describes principles of the decision tree model and singles out significant problems in algorithms for constructing a decision tree  in particular, the problem of building a decision tree in the presence of noise in the data. The second part describes methods of automatic and manual processing of noise in the data, indicates the problem of limitation of material resources and time resources at manual processing. The third part describes known methods of noise processing in the data and building a decision tree model. On the basis of the research, the authors propose the ID3O algorithm for building a decision tree model in the presence of noise in the raw data and with limited resources for processing and improving data quality. The conclusion presents the results of the proposed algorithm in comparison with existing methods of building a prognostic model of the decision tree.
Verification of software models of communications networks
# 10, October 2012 DOI: 10.7463/1012.0479500 Development of software models of digital devices involves verification of compliance of the developed software project with initial requirements to logical functions of the device. In this paper the authors consider principles of developing test software environment for design of digital logic modules of a highspeed communications network. The verification methods for software models of logic modules of distributed data transmission and processing systems. The test software environment for a router block is responsible for reception and transmission of data packets.
Cycle skip in discrete phaselock system
# 10, October 2012 DOI: 10.7463/1012.0478399 The cycle skip phenomenon can have a significant impact on performance of phaselock systems, it results in a sharp increase in frequency errors. The author analyzes the mean time till the skip of discrete phaselock systems when interference in several ways is present. To study phaselock systems the approximate Kramers formula and Zhuravlev formula for phaselock systems with the integrating filter. The author compares characteristics of the average time for phaselock systems of the 1st and 2nd order.
Electrostatic suspension with pulse width (PW) control of potentials and combined displacement sensors
# 10, October 2012 DOI: 10.7463/1012.0476229 The author studies the operation of a threeaxle 12electrode electrostatic suspension with regulation of high potentials according to the PW control law and with combined displacement sensors. The author considers problems of choosing the law of potentials control and their impact on the amplitude of forced vibrations of the rotor. The dynamic motion sensor error is studied. The results of simulation of forced oscillations for two management options and different levels of high voltage reference are presented in the article.
Rational decisionmaking in design of assembly diagrams
# 10, October 2012 DOI: 10.7463/1012.0475116 This article proposes a new approach to development of assembly diagrams and assembly structure. The authors show that the basic design properties affecting feasibility of these diagrams can be presented as a preorder relation on a set of parts of the product. The symmetrical part of the preorder is an equivalence relation describing accessory of parts to assemblies. Factorization of preorder on its symmetric part gives a partial order on the quotient set. This partial order defines a temporary ranking of parts and components during assembly. The authors propose a procedure of selection of rational assembly sequence which includes sequential afterordering of the partial order.
Tool radius in wirewrap method
# 10, October 2012 DOI: 10.7463/1012.0465668 In this article the authors consider a wellknown but still theoretically not grounded wirewrap method. To solve this problem, the authors use actual conditions for formation and ensuring a hard close contact of connected elements,  namely, their elasticplastic deformation and expected state of the process at the final moment. The authors supposed that provision of this contact will be achieved if the contact stress on the surface of the connected elements is not less than the elastic limit value and not higher than the ultimate stress value of the contacting materials. The paper presents the data for estimation by calculating the radius of the winding cylinder. Thus, radius of the winding cylinder is defined. Previously, this problem was solved only by selection.
Implementation of a flat turn of the spacecraft by a quasioptimal algorithm of reorientation
# 10, October 2012 DOI: 10.7463/1012.0465320 The author considers a quasioptimal control algorithm of the angular position of a spacecraft (SC); the algorithm takes the spacecraft from an arbitrary initial position to a final rest position in a preset time. The aim of this work is to find conditions under which the synthesized control software sets the flat turn of the spacecraft (SC). Control software is based on the concept of inverse problems of dynamics. It is shown that, in general, control software determines the spatial turn of spacecraft. The author obtains the conditions under which the control software implements the flat turn of the spacecraft. The author refers to special cases when these conditions also have a simple interpretation. The results of numerical simulations confirming theoretical results are also provided.
Mechanics
Lever vibration dampener in a mechanical system with an object of protection from vibration, as a solid body on elastic supports
# 10, October 2012 DOI: 10.7463/1012.0465518 The authors consider a mechanical system that has an object of protection in the form of a solid body on two elastic supports. The object of protection has a mass and a moment of inertia and can oscillate around the center of gravity. The dynamic lever vibration dampener has a lever construction and a support point on the object as a rotary joint. Movement of the hinge or choosing a seat for the dampener can significantly change the properties of the system as a whole. Features of the dampener include expression of dynamic properties which depend on the choice of the generalized coordinate system. The authors propose a method of constructing mathematical models and evaluating dynamic properties. They also give results of numerical experiments.
Radiophysics
Study of structural properties of highperformance radioprotective materials
# 10, October 2012 DOI: 10.7463/1012.0479228 In this work the object of the study is composites based on ultrahigh molecular weight polyethylene (UHMWPE) filled with nanosize particles of tungsten and boron carbide. The aim is to study structural properties of composite materials based on the polymer matrix UHMWPE. The field of application of composite materials based on UHMWPE and reinforced by nanoparticles of tungsten and boron carbide is: materials for radiation protection capable of operating in a complex radiation environment with the ability to absorb both gamma and neutron radiation.
System function of magnetoactive element in inhomogeneous magnetic field
# 10, October 2012 DOI: 10.7463/1012.0462881 The authors propose a method of calculating a system function of a magnetoactive element in the linear approximation. The authors carried out numerical calculations for the galvanomagnetic element of type PHE602817A and experimental verification of the relations of reciprocity in an inhomogeneous magnetic field. They demonstrates the ratio of reciprocity with an accuracy of 2 %.
Optics
Multilayer optical memory with twophoton mechanism for recording
# 10, October 2012 DOI: 10.7463/1012.0479554 The authors present the results of their study of multilayer optical memory with a twophoton mechanism for recording and collinear heterodyne readout. The choice of materials for multilayer recording with a nonlinear twophoton absorption mechanism is justified. The authors give a description of the experimental setup for multilayer recording in the form of microholograms with relative phase modulation. They present the main characteristics of an experimentally validated installation. The authors consider the main sources of additive noise and their impact on the speed of reading and recording density. They empirically obtained a preliminary assessment of the impact on reliability of intersymbol interference registration information.
Power Engineering
Simulation of transients and analysis of dynamic stability of synchronous generators under the influence of large perturbations
# 10, October 2012 DOI: 10.7463/1012.0465566 To ensure reliable operation of electric power systems it’s necessary to analyze and evaluate the inventory of dynamic stability of synchronous generators under large perturbations. In this paper the authors consider a methodology for analysis and evaluation of dynamic stability a feature of which is sharing high quality (the method of Lyapunov functions) and numerical methods. The authors propose an approximation method with the use of the interpolation polynomial to reduce computational costs and to carry out more accurate calculation of the critical value of the Lyapunov function. This method can improve accuracy of results to assess dynamic stability and make a more grounded choice of states of power systems and configuration of emergency automation systems.
Metallurgical Engineering
Corrosion resistance of welded joints of maraging steels for forcemeasuring elastic elements
# 10, October 2012 DOI: 10.7463/1012.0463200 The authors study the effect of welding heat to corrosive properties of maraging steel, the influence of chemical composition of steel on liability to intergranular corrosion; they set a method of improving corrosion resistance of welds by use of surface treatment.
Transportation
Evaluation of key performance indicators by the example of an integrated supply chain
# 10, October 2012 DOI: 10.7463/1012.0483305 Currently, most Russian companies, in contrast to advanced Western companies, seek to maximize profits in a shortterm period. However, in the longterm outlook, such an approach is unprofitable. Evaluation of effectiveness of the supply chain is not possible without development of a regular system of key performance indicators. A set of key performance indicators depends on many factors, including the specific character of the industry; that’s why a set of key performance indicators can not be standardized and should be designed with due account of the specific character of each particular situation. The article describes and analyzes existing approaches that can be efficiently used to assess efficiency of the supply chain; it describes key performance indicators in the case of a "standard" and a "green" supply chain.
Economic Sciences
7748211/493595 Integration trends of education, science and business in a region
# 10, October 2012 The authors analyzed trends in integration of education, science and business in an industrially developed area. New ways of interaction between universities, research organizations and businesses are proposed. The authors specificated the need to develop and adopt a sbackbone federal law on integration of science, education and manufacture.
7748211/489598 On classification of system processes in quality management system (QMS), "Management's Responsibility"
# 10, October 2012 The article focuses on the primary role of top management in effectiveness of quality management system processes. The article gives a scientific literature review on classification of QMS processes "responsible leadership". The author emphasizes that in these studies she does not justify the given list of processes, she does not specify task processes, criteria and methods of assessment and improvement of their performance. The author proposes an order of carrying out the authority by top management in quality through implementation of QMS processes "responsible leadership" the implementation of which is aimed at increasing the degree of management’s involvement in development of quality management system of the enterprise.
Mathematical and Software Tools for Economics
7748211/466075 Mathematical and tool methods of economy
# 10, October 2012 This article describes an economic and mathematical model of an enterprise’s sales process; the model was developed on the basis of the queuing theory. The authors propose an efficient management system for a commercial establishment; the system is a relationship of internal and external operating parameters that affect the result in general. The authors give an example of an economic and mathematical model of the trading process.
Education Sciences
7748211/467932 Relationship fundamental and applied aspects of the educational process
# 10, October 2012 The author defines the main problems of the existing education system and their solutions. The author outlined the contours of a promising "advanced" education system and the main directions of its formation. One of the directions is solving the problems of fundamentality of education. With an adequate form of modern science, fundamental education becomes acquires communicative, interdisciplinary nature which leads to the need for changes in the content of education and teaching activities. It is shown that for development of creative abilities of students an optimal structure of studying a discipline is a structure which is similar to the structure of scientific research. The author reveals a contradictory approach to modular design of educational programs. The author shows peculiarities of specialist training in the field of highend technologies, the need for an evolutionary transition from the educational and training process to the scientific and educational process. The author gives examples of interaction of fundamental and applied aspects of the educational process, according to the proposed methodology.
Appendix Foreign Education
INDIA: Industries May Soon Get a Role in Higher Education
# 10, October 2012 New Delhi: India is preparing to involve industries in higher education in an effort to boost both research and employability.The human resource development (HRD) ministry expects this will, in addition to employability, solve issues related to land availability and finance. In return, the government will give industries independence and fasttrack regulatory clearances for opening institutes that will focus on research specific to industry requirements.The ministry, in association with lobby group Confederation of Indian Industries (CII), has invited 17 government departments and ministries and nearly 60 companies to a twoday conference in Delhi.
CANADA Needs More University Grads, Says Postsecondary Schools' Group
# 10, October 2012 Canada’s economy could be in trouble if universities do not start churning out more graduates from all fields of study, including the arts and humanities, says the Association of Universities and Colleges Canada (AUCC), writes Matthew Pearson for Ottawa Citizen.“If we think our economy is going to be healthy going forward without a welleducated population, we’re kidding ourselves. It is not going to happen,” said Stephen Toope, AUCC’s chair and the president of the University of British Columbia.
History of Progress
7748211/483448 Alexander Gustav Eiffel (180th anniversary of his birthday)
# 10, October 2012 A brief review of main works and achievements of Alexander Gustav Eiffel is given. He was an outstanding engineer and architect won the world recognition in the field of metal structures and aerodynamics. His biography data as well as some interesting facts from his life and activities are presented. Almost all the bridges Eiffel in textbooks as examples of bold and robust engineering solutions, and its famous tower has become a symbol and a major tourist attraction in Paris .



