SCIENCE & EDUCATION

The design technique on the set width of a cog at an apex combines advantages of geometry of a design technique in combined parametres with obviousness of projection on OST 1 00258-77 «Transfers gear cylindrical involute straight-toothed an external gearing. Calculation of geometrical parametres».Design technique selection determines area of existence of the gearing. As a result of it the point which is in area of existence, at projection, for example on OST 1 00258-77, can be out of area of existence for the gearing designed on set width of a cog at an apex. Thus, there was a necessity for mining of a method of construction of blocking head loops for a new design technique.In the article the method of construction of blocking head loops for the aviation gearings designed on set width of a cog at an apex is presented. The method is grounded on use of nonlinear programming.

Questions of influence of position of dynamical absorber on properties of object with two degrees of freedom are considered. Building of effective system of defense from vibration and getting of additional regimes of dynamical absorbtion with coupling are offered.

In this work describes basic approaches of mathematical design are examined in attachment vehicles. In this work describes the one- and two-dimensional models of transfer of impulse, the masses and energies in columns with attachment elements. For description of model are used the systems of differential equalizations in partials derivatives. The account of the second phase is executed due to by volume sources.  In this work presents the results of calculation of efficiency of absorption of acetylene with water and deaeration from water of oxygen by attachment elements: rings of Raschig 50x50, steel rings of Pallya 50x50, ceramic saddles of Intaloks 50 mm and attachment of «Inzhekhim-2000». In this work presents comparative structural descriptions of deaerators with the use of attachment elements. Conclusions are done about modernization warmly - and mass-transfer vehicles with the use of high-efficiency contact devices.

We consider the system of interactive communications to generate new knowledge in order to manage manufacturing processes. The model is analyzed interactive communication, on the basis of which is determined by the concept of the source of formation (traffic, conversion, etc.) knowledge on the state of production. The property interactive communication use a variety of interfaces, which are determined by various technological гиями used in the process of transferring information. It is shown that the analysis of process of creation of management information in the online environment involves synthesis of structure interactive processes, management processes and information exchange on the basis of interface objects.

State of the spacecraft is characterized by a certain set of parameters obtained from the spacecraft through telemetry. For operational decisions based on of analysis of the parameters that need the function of estimation, which shows the variation of these parameters. The article describes how to construct the function of estimation for a continuous parameter and another one parameter with a bilateral constraint the feasible region. You can see also example of the function of estimation with using expert assessment and use of color coding for the automated estimates and for decision support. The functions of estimation are often used by operational management team for the prediction and identification off-optimum situation on spacecraft and also operational decision making to overcome the off-optimum situation.

Modern successful business is impossible without innovations, both tehniko-technological and social. Research of approaches to studying of innovative process, allows to draw a conclusion that at practical realization of the innovative project at the enterprise, necessary there are two stages of innovative process, namely, an estimation of innovative potential of the managing subject and examination of the innovative project.

Organizational solutions, their efficiency and reliability, allowing to manage complex production, economic and financial processes, are based on the interaction of systems management knowledge- based organization and technology-recognition of reception, processing and distribution of information at the enterprise. The management of the organization is directed, first of all, to become a tool for the development of principally new business processes, acceleration of processes of innovation scientific and technical development. Interaction of the production process and information-technological system can be explored, defining the relationship between objects of production systems in their linkages and processes of information processing. The set-theoretic approach allows to develop the model of information space of the organization as a system of ordered sets with a certain structure and to develop the model of organization of information processes in the system of production management.

The article presents data on deviations from the theoretical shapes and sizes of polygonal holes in the fasteners, obtained by rotary broaching. For this process estimated three types of shape deviations: hole taper, alteration of hole size, compared with tool size and helical hole configuration. Spiral-shaped sides of the hole bring main input in hole inaccuracy. The influence of technological factors and processing parameters, allowing to obtain hexagonal holes with the specified requirements for dimensional accuracy was determined.

The article is an analysis of the types of software licensing, their differences and ways of application, the basic problem of the legalization of software in use, both on large industrial enterprises and other businesses, as well as forms of risk in the case of counterfeiting. The urgency of the problem is important to most entities use in their activities, since Russia is still large amount of unlicensed software.This article reveals in detail the situation that can confront a company using illegal software, a method for calculating the efficiency of the legalization of software.

The procedure de-identification of the personal data tables, are discussed. The procedure consist in transpositions of the records in columns of the table.  The transposition provides the hiding of the logical relationships between personal data and create difficulty for the unauthorized identification. The formula for the estimation of the labour content for unauthorized identification by way direct exhaustion of variants are received. The  algorithm of the reconstruction of the personal data after de-identification are designed. Dignities of the method and the examples of  using are shown. This method  are enough simple for realization  by  programm facilitys of  database, for example  - SQL.            The article can be useful for designers and administrators of the personal data information systems.

Orientation for new aims of education – competences – requires a change of forms and methods of the educational process. The article deals with interactive methods from the standpoint of their application for becoming a competent competitive specialist. Disclosed and substantiated efficiency of the method of the project, case method, discussion, research method, gaming techniques, brainstorming for the formation of key competencies in natural - science training in technical professional education. Set the direction for modernization of pedagogical techniques, based on integrative methods.

The article refers to the possibility of  technological projects optimization on two opposite parameters (parameters raising and lowering quality of the project).  The schematic analytical optimization method is used for problem solving, based on modeling of designed technological process on directed network, loaded with two weight functions simulating optimized parameters of the designed process. The optimization mechanism includes: modeling of process on directed network; pseudo-hierarchical transformation of network; identification of  the maximum stream on network using the method of cuts; transformation of  pseudo-hierarchical network to the tree of through streams and search of topological configuration of the maximum streams on network; searching the configuration of the required maximum stream of minimum cost. The article also describes an example of practical use of the considered method by modeling the technological process of the maximum productivity and the minimum industrial cost.

In the article a set of organizational-pedagogical conditions for improvement of professional competence among students in the process of continuous study of "non-core" natural-science disciplines is distinguished and theoretically grounded. Experimental verification in the technical institutions of secondary vocational education showed that the profiling of education content, its modular-competence structuring, engaging students in active cognitive practice when combined with appropriate teaching / learning software promotes the increasing level of motivation, and cognitive components of competence, the development of cognitive interest.

The article analyzes the synchronization system in the presence at its input in the form of the combined effect of the additive sum of the signal, harmonic interferences and noises in the form of a Gaussian random process. The model of the synchronization system in the form of a phase-locked loop as a structural scheme and the nonlinear stochastic control. The article offers the derivation of the differential equation. In the future, authors plan dispose of the noise component examine the deterministic control solution using the method of harmonic balance. As a result, the authors obtained a system of algebraic equations for the parameters of the approximate solutions. The article offers the image obtained parameters depending on the values ​​of GPT. In the first case, increasing the noise intensity leads to improved matching, increases the mean time to failure of tracking and decreases the average value of the frequency mismatch; In the second case, the reverse trend.

The task of designing a new product is connected with achievement of the required technical level of a product, decrease of laboriousness and prime cost in all stages of a life span of a product. Tryout of the construction for its fabricability is performed by means of direct influence on its technical essence due to providing the construction with a number of properties that make it organizationally adequate. The work presents the method of calculating workability and quality assessment of a device of rotary band grinding with particulate indices. This method allows to choose the most rational layout solution.

The traditional method of gyroscope biases determination is very difficult to be used during a calibration procedure. To calculate the errors the method must use a lot of navigation data saved during the calibration procedure. The equations of a strapdown inertial navigation system development were analyzed to show how the errors can be detected using the special control signals added to a tradition inertial navigation system algorithm. The control signals basing on the velocity errors are summarized to the navigation system angular velocity which is used by the direction cosines matrix calculation procedure. The method was tested during the calibration of SINS-TEK navigation system based on fibre optic gyroscopes(FOG) and quartz accelerometers. The method was only used for 60 seconds and the gyroscope biases were detected. After the biases being detected the output velocity errors calculating during 2 hours of work were improved 10 times.     

In the middle of the 70th of the last century, modern medicine have been important developments - through the introduction into medical practice modalities of diagnostic imaging and information technology have introduced new technologies in diagnostics, imaging, therapy, surgery and rehabilitation phases of treatment. The main directions of implementation of information technology in medical practice associated with the processing of large volumes of diverse medical information and management of medical institutions. However, the most serious problems have arisen in the implementation of information technology in the practice of preparing and planning of surgical treatment. This is due to the fact that the requirements of increasing opportunities for surgical treatment and its effectiveness has led to a sharp increase and complexity of technical equipment of surgeons, including sophisticated robotic and computer systems.

The article discusses the theoretical aspects and results of content analysis the general physics course as a basis for improving discipline which is oriented to model of professional competence of technical universities graduates

The new solution of the problem of the directed sound beams reflection at the interface between liquid half-space and solid half-space is analyzed. This solution is received in a class of the generalized functions, which are the conjugate solutions of the appropriate not self-conjugate boundary problem. It is marked, that reflectance of spherical components of the total solution in the field of angles of complete internal reflection is less than one. The reflectance takes the minimal value when falling angle corresponds to generation of Rayleigh wave. The analytical expression for shift of the directed sound beams is received for reflection, which angular dependence precisely corresponds to observed dependence in classical Schoch experiments.

We discuss the formalization of the mechanical linkage products. Considered mechanical system, whose elements can be considered as absolutely rigid bodies. Offered the mathematical description of the properties that deliver elements of the mechanical system a certain location in the assembly process. It is shown that an adequate description of these properties is hypernetwork model. This hypernetwork is a combination of graph and hypergraph mechanical linkage. The first describes all he connections and mechanical coupling, the second represents the full set of design bases. Hypernetwork can be used for the synthesis of product assembly sequence. Each assembly operation is represented in the form of a normal collapsing vertices of the network. Sequence of normal collapsing that transforms the network into a point, a description of the product assembly.