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  • Features of obtaining manganese dioxide by method thermolysis on the tantalum anode of condenser

    In the article obtaining of cathodic coating MnO2 on condenser porous tantalum anode was researched. It was ascertained that formation of crystalline defects from hydrated MnO2 on MnO2 coating obtaining by known technology is possible. Such formations disturb tantalum capacitor cathode integrity. To determine the reasons of the crystal defects formation conveyed simultaneous thermal analysis of Mn(NO3)2x4H2O and Mn(NO3)2x6H2O with an analysis of the flue gases by FTIR spectroscopy. Based on the analysis results a mechanism of manganese nitrate thermolysis was suggested and the cause of the crystal defects on the surface after the coating of manganese dioxide removed from the furnace was ascertained. It was established that the thermolysis process is followed by the formation of such manganese nitrate intermediates as manganese hydroxynitrate, manganese oxyhydroxide and its further oxidation to manganese dioxide. Because of secondary processes leaking on the MnO­2 cover manganese oxyhydroxide residual can react with water vapor and oxygen, that leads to the formation of crystalline defects. Such phenomenon has a negative impact on the chemical composition and integrity of the coating on the surface of the porous MnO2 tantalum capacitor anode. Also it has been found experimentally that manganese hydroxynitrate is formed from manganese nitrate in the form of microtubules on the porous tantalum vehicle surface.

    Keywords: manganese dioxide, coating, manganese nitrate, thermolysis, crystalline defects, microtubules

  • The physicochemical analysis NH4NO3 – KNO3 – Н2О system at 25 degree C

    In the article are introduced research results of physicochemical properties of ammonium nitrate – potassium nitrate water system at 25o C. The literary source analysis is performed that no clear opinion about solid phases composition. The different composition double salts, solid solution and eutectics are identifies. Appeal is specifies a look and properties of formed structures. Methods of differential thermal analysis and X-ray diffraction have been establishing that the equilibrium solid phase of the studied system represents two types of solid solutions. A first type based on the III phase of ammonium nitrate crystal latitude (at the content of nitrate of potassium to 20 %) and a second type based on the potassium nitrate rhombic syngony (at the content of nitrate of potassium more than 80 %). Crystal cells parameters of being formed phases submit to the Vegard rule. The ammonium nitrate sample (at the content of nitrate of potassium more than 12 %) keeps phase stability at the temperature range minus 50 to plus 100о С. Burst in components miscibility at the potassium nitrate concentration range 30 to 80 % is observed.

    Keywords: ammonium nitrate, potassium nitrate, differential thermal analysis, X-ray diffraction, cocrystallization, solid solution

  • Engineering and psychological assessment of processing equipment of the enterprises of the motor transport at a design stage

    Questions of an engineering and psychological assessment of the equipment of the enterprises of the motor transport at a design stage on the basis of the algorithmic description of activity of operators are considered. It is shown that on in the analysis of algorithms at a design stage it is expedient to use the device of fuzzy logic.

    Keywords: algorithm, equipment, design, fuzzy logic

  • Fuzzy decision-making methods to search for objects on the sea

    Some aspects of the use of fuzzy logic to generate a mathematical model to search for objects on the sea. Describes how to use the algorithm Mamdani, to create a model of fuzzy inference. Section gives an example of the use of Fuzzy Logic Toolbox package Matlab, for the simulation of fuzzy search engine and determine the optimal solution of the problem to find the object.

    Keywords: mathematical model, fuzzy logic, object search algorithm Mamdani, membership function

  • The base organisation as a key link in branch system of an estimation and certification of qualifications

    In article it is constructed трехзвенная model of participants of branch system of an estimation and certification of the qualifications, including the branch base organisation, the ekspertno-methodical centre and set of the centres of an estimation and certification of qualifications. The role of the base organisation in the given system is shown. Character of interaction of the branch base organisation with the basic participants of system of an estimation and certification of qualifications at level отрасле is defined. The basic functions of the branch base organisation are allocated and the order of its functioning is defined. The interrelation of the branch base organisation with participants of national system of an estimation and certification of the qualifications, presented by the Socially-state council and the base organisation - National agency of development of qualifications is shown.

    Keywords: Management of process of support of raw materials of the enterprises, macrologistical system, functional structurization, objective structurization, competitiveness factors.

  • Optimization of management processes hydraulic drive, using the methodology of the joint maximum principle

    We propose a method for constructing of algorithm of smooth management by the hydraulic actuator  based on the method of combining the maximum principle. Such management increases the accuracy and non-failure operation of operation of the device

    Keywords: the integrated principle of a maximum, management, the hydraulic actuator, synthesizing function, management synthesis, asynchronous variation

  • Features of the spinel phases formation in system NiO – CoO – CuO – Cr2O3

    The combination of the unique, abnormal properties shown by oxidic systems with structure of spinel on the basis of transitional elements chromites draws attention of researchers for many years. Some systems on the basis of transitional elements chromites (for example, nickel and copper chromites) have critical elements (multicritical points, lines of phase transitions of the second sort, etc.) on the phase chart. Near these elements of the phase chart materials possess unique chemical and physical properties. Therefore development methods of receiving and research of phase forming and properties in NIO-CoO-CuO-Cr2O3 system represent fundamental and practical interest for chemistry and technology of inorganic substances. In this work processes of spinel structure formation in system 0,6 NiCr2O4 – 0,2 CoCr2O4 – 0,2 CuCr2O4 from crystal chemistry positions are considered. Formation of two solid solutions on the basis of nickel (II) chromite – with structure of cubic spinel and with tetragonal distorted structure is established. The influence of cooperative Yahn-Teller effect on processes of a spinel forming and on stabilizing impact of chloride of potassium on process of education of  two spinel solid solutions is suggested. Influence of a power factor of cation stabilization in knots of a crystal lattice as one of the important factor in reaction of spinel structure formation is considered.

    Keywords: spinels, chromites of transitional elements, Jahn-Teller effect

  • Using of large-scale waste phosphogypsum to reduce emissions of SO2-containing coal power plant

    Possibility of using of a phosphate for receiving lime which can be used further as a sorbent of oxides of sulfur in coppers with technology of the circulating boiling layer, applied on coal thermal power plants is considered.

    Keywords: enterprises of power industry, phosphogypsum, with CFB boilers - circulating boiling layer, pollution of the atmosphere, sulphur dioxide, secondary resources, sulfuric acid

  • Evaluation of communicative competence of students based on polytomous model

    The article explains the possibility of using polytomous models to assess personality traits that affect  on communicative competencies of students.
    Input data obtained using a questionnaire V.V. Boyko  " Communicative tolerance " have been used for calculating the characteristics of survey participants and  indicators of the test.  

    Keywords: level of student latent variables, polytomous model indicator, a diagnostic test.

  • To the question of sources and volumes of oil components, input into Black sea

    The paper is devoted with the analysis of sources and volumes of oil components’ input into the Black sea. The topicality of this problem is connected with of transboundary the status of water object that contributes to the complexity of such works. Black Sea has important significance for transport and development in the coastal zone of the oil complex, combined with a great recreational potential. As a result, ecosystems are technogenic impact. The paper describes the main natural and anthropogenic sources of oil components in the Black Sea. On the basis of the results of our expeditionary research and analysis of sources of pollutant concluded chronic character oil pollution of the Black Sea. And the conclusion that the most optimistic estimates, entrance of oil components in the ecosystem in the Black Sea is approximately 270 thousand tons per year, which is higher than the currently accepted values of 2−2.5 times. 

    Keywords: sources, volumes, oil components, the Black Sea, hydrocarbons

  • Adaptibility as system characteristics of infrastructure support of small and medium business

    Dynamic changes of conditions of the business require the development of appropriate instruments at the present stage to support entrepreneurship. The article deals the analysis of adaptability as systemic characteristics of the object of management, and proposes a model of adaptive infrastructure of support of small and medium enterprises.

    Keywords: adaptability infrastructure to support small and medium business, public Association of entrepreneurs, small and medium business

  • Integration tools of logistics forsiting system in the energy region market

    In this article described theoretical and applied, science-based background, introducing instruments  of logistics development forsiting energy systems, in analyzing the current state of Russian power omplex operating within the framework of a competitive market, identified the need to develop foresight projects of regional power complex.

    Keywords: logistics, forsiting research, regional electricity complex

  • Unsteady computational model inhomogeneous two-layer porous bearing of finite length when combined feed lubrication

    In this paper, based on Darcy equations that govern the lubricant in porous layers , and the modified Reynolds equation in the framework of a short bearing solve the problem of unsteady motion of a viscous incompressible lubricant in the bearing clearance double-layer porous . Here we consider the case when the permeability in porous layers in the axial direction is changed by the normal law , and the combined feed lubrication is performed simultaneously in the axial and perpendicular to the bearing axis directions. As a result, the pressure field found in porous layers and in the lubricating layer and analytical dependences for the efforts of the oil film . Compiled by the equation of motion tongue and solved the problem of the stability of the unsteady motion of a pin bearing , found that in the case of a combined bearing lubrication working more steadily compared with the cases or axial directions perpendicular to the axis lubrication . The results obtained can be offered for the development of cylindrical dampers with double-layer porous collar , effectively attenuating transmitted force imbalance in the combined feed lubrication.

    Keywords: two-layer porous plug; permeability porous layers, load capacity; equation of motion of the stud; stability

  • Opportunities and Prospects of small hydropower in agriculture of Altai region

    The article deals with development of hydropower in the Altai region. Indicates the need for widespread adoption in the economic practice of farms renewable energy. Provides information about the basic types of equipment of small hydro power plants. Analyzes the main problems encountered during the construction and operation of small hydroelectric power plants. In this time have a potential for the construction of small hydroelectric power stations for the needs of farms in the area of the foothill zone of the Altai Territory. It is noted that the implementation of such a project is possible only at the state level, because of the large amount of necessary investments. As a priority area of hydropower development for the needs of farms Altai proposed project of building 26 small hydro power plants on the rivers Charysh, Anouilh and Peschanaya. Indicated that the project could provide more than 95% of the needs of agriculture in the region's electricity . According to the analysis of the above issues,we can the following conclusions: (1) small hydropower plants are spent in terms of technology and affordable source of renewable energy, and (2) is now possible to create a sufficiently large hydroelectric complexes of low power, the ability to make a significant contribution to the region's energy supply structure and (3) the market has a large number of manufacturers of equipment for hydroelectric small power, including and domestic enterprises, which allows to put into practice projects by individual energy supply, without any technical difficulties, (4) the high priority in the development of small hydro power plants, in relation to the needs of the agriculture of the Altai Territory is to create a pool of 26 small hydro power plants on the rivers Charysh, Anouilh and Peschanaya with a total installed capacity of 404 MW, with an annual production volume of 1540 million kWh of electricity per year, and (5) small hydropower plants are a priority of energy supply based on renewable energy sources of agrarian industry in the foothills southeast of Altai Territory.

    Keywords: hidroenergy, renewable energy, energy-saving technology, aricultural region

  • Formation of logistics strategy for regional power industry

    The article presents the position of Russia in the global energy sector, highlighted the global trends of the modern development of economic systems that directly affect the stability of the national industrial complexes. Presented the need to invest investments in Russian regional power generation systems.

    Keywords: Trading network, supply chain, suppliers, government regulation, institutionalization of exchange relations.