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  • System approach to monitoring of a technical condition of buildings and constructions

    In article the safety mechanism in construction is shown. Main types of monitoring of unique buildings and constructions are opened

    Keywords: risk, construction, monitoring, labor protection, safety

  • Development of communications and sale of production and services of a restaurant network with use of IT-technologies (experience of modeling and design of the multipurpose website). Part 1

    Results of the theoretical analysis and applied development of the system of communications and sale of production and services of a restaurant network with use of modern IT technologies are given. Results of modeling and design of the multipurpose website which allows to expand production and economic capabilities of a restaurant network are described. SWOT analysis is executed and the main results of design of the multipurpose website and its integration into a control system and business processes of a network of restaurants are briefly presented. Work is performed with financial support of the Ministry of Education and Science of the Russian Federation within the Federal target program "Researches and Development in the Priority Directions of Development of a Scientific and Technological Complex of Russia for 2007 - 2013".

    Keywords: communications, organization of advance and sale of production and services, IT technologies, models, modeling, multipurpose website, network of restaurants, organization and management of restaurant, instrument complex

  • To unstable coloration centres in rear earth gallium garnets

    The coloration centres (CC) in crystals of rear earth gallium garnets (REGG): Gd3Ga5O12 (GGG), Gd3Sc1,6Ga3,4O12 (GSGG) и Nd3Ga5O12 (NGG) obtained by Chohraljskiy method, were investigated by methods of optical spectroscopy and spectral analysis in the wavelength range of 0,2-0,87 microns. In the case of keeping the samples under dark conditions, unstable CC were formed in the crystals of GGG and GSGG. The absorption maxima are at λmax1 = 0,243 m and λmax2 = 0,275 m at concentration of N ~ 1018 cm-3. It is suggested that the observed enlightenment is caused by the recharging of growth defects and occurring the energy levels in the band gap of garnets. It appears that these CC correspond to centres of O- holes, originated from gallium vacancies V3-Ga 3+ in tetrahedral and octahedral nots which form near clusters of [V3-Ga 3+ - V2+O2- ]

    Keywords: color centers, rare earth gallium garnets, kristylly, Czochralski method, the crystal lattice

  • Modernization of the technological line on manufacture of a ceramic brick

    Re-equipment of existing enterprises is comprehensive intensification of production, increase production capacity, production and improvement of its quality while ensuring productivity growth and job cuts to reduce material capacity and cost of production, saving of material and energy resources, improvement of other technical and economic performance of the company in General

    Keywords: Modernization, технологическоя line, production, ceramic brick, operating enterprise

  • Development of communications and sale of production and services of a restaurant network with use of IT-technologies (experience of modeling and design of the multipurpose website). Part 2

    Results of research and design of system of communications and sale of production and services of a restaurant network with use of IT technologies and the multipurpose website providing favorable prospects of preservation of business, its steady growth, diversification, differentiation and customization of products and services are given. The complex of design actions and results of modeling of risk management are described at development and deployment of Internet technologies and the multipurpose website in production and administrative activity of a network of restaurants, design, advance and site operation. Work is performed with financial support of the Ministry of Education and Science of the Russian Federation within the Federal target program "Researches and Development in the Priority Directions of Development of a Scientific and Technological Complex of Russia for 2007 - 2013".

    Keywords: organization and management of the project, communications, IT technologies, models, modeling, multipurpose website, network of restaurants, organization and management of restaurant, site advance, instrument complex

  • The vibrations of multilayered half plane with relatively much sunken cavity of arbitrary shape

    The solution of vibration problem for multilayered half plane with cavity of arbitrary shape is constructed using boundary element method. For the case of relatively much sunken cavity an asymptotic representations for fundamental solutions is used. The results of problem simulation for displacement and stress fields close to cavity surface are given using boundary element method

    Keywords: multilayered environment, cavity of arbitrary shape, asymptotic analysis, boundary element method

  • Management of natural and technological risks of investment and construction projects for integrated development of urban territories

    The article is devoted to the formation of scientific and methodological base management of natural and man-made risks that arise in urban areas in the realization of investment and construction projects for the development of the urban environment. The article indicated the essence of the mutual influence of economic , social and environmental processes that occur in the realization of investment and construction projects for the development of an urban environment , the purpose and objectives of risk management of urban areas are determined , the necessity of applying the relevant scientific and methodological apparatus that takes into account the main socio - and environmental factors including economic and mathematical methods and models of assessment and prediction of the level of risk is based . As a result of proposed scheme is described in detail and the strategic management of natural and technological risks of investment and construction projects of development of urban territories , which includes five elements : 1) determining the level of acceptable risk and the list of measures of regulation security development based on the socio -economic factors , and 2 ) the organization of a permanent monitoring natural and built environment conditions and the level risk of livelihoods of the population , and 3) formation of a rational allocation of resources for preventive measures and reduce the risk and the negative impactof , and 4) implementation of a complex program of measures to reduce risk , and 5) carrying out of repair work and / or reconstruction . The proposed scheme improves the efficiency and rationality of strategic urban planning of urban environment .

    Keywords: natural and man-made risks, investment and construction projects, sustainable development, urban territories, strategic management

  • Effect of variations in the input parameters on the heat exchange system.

    "Dynamic mode of heat exchangers is typical for a number of technological thermal plants , as well as air-heating systems , ventilation, and air conditioning. Technologically predetermined control algorithm operating mode heat exchangers in practice implemented by means of manual or automatic adjustment in one or more control parameters . Obviously, the most efficient in the energy and technically and economically dynamic mode control algorithm of the heat exchanger can be detected only in the form of a review of the relevant mathematical model. In this paper we consider a mathematical model of the dynamic operation of the system of heat exchangers with natural air circulation . As input parameters are considered the temperature of hot and cold air streams. Modeled by changing the inputs are heat exchangers and the extent to which these changes will not affect the operation of the entire system. In order to keep the temperature at the i- MOT has not changed , the coefficient of variation should tend to zero , since all the other quantities are limited by technical parameters of the system . By changing the values ​​of the input parameters is analyzed mass flow of hot flow limits are changing the output parameters of the preceding heat exchangers that will not change the entire system ."

    Keywords: heat loss into the environment, the starting temperature of the hot (cold) flow, the final temperature of the hot (cold) flow, the range of variation of hot, cold flow

  • Panoramic image stitching with handling the parallax effect for the known world model

    The short review of existing panoramic systems are given. The limits of such systems doesn't allow to form a panoramic video with dealing the parallax effect in real-time systems. The presented algorithm for forming a panoramic video is free of these disadvantages. An algorithm based on mathematical model of the round-view system that takes into account the location of cameras, their intrinsic parameters and model of the world. The algorithm includes following chain of coordinate transformation: from panoramic image coordinates to spherical coordinates and to Cartesian world coordinate system, from world coordinates to camera coordinate system and to input image coordinates. Geometric distortion of camera is dealt. Model of the world is represented as spherical and a hemispherical surfaces.

    Keywords: panoramic image, round-view video system, camera model, camera distortion, parallax

  • The influence of basic chemical composition on the properties nickel-zinc ferrites, received by radiothermic sintering

    To date, the main method of mass production of advanced functional materials for various purposes is the ceramic technology. In the manufacture of multi-component oxide compounds using of ceramic technology is difficult to achieve high uniformity of chemical composition. For activation of the raw ingredients and make it more uniform use of chemical-tions (co-precipitation of salts or hydroxides, spray drying, Cryochemistry) and physical-tions (mechano-chemical, microwave, ultrasonic) methods. The paper presents the results of work on obtaining Ni-Zn-ferrite 2000NN radiation-thermal sintering. The influence of base composition and alloying additions on the electromagnetic properties of the ferrites. Confirmed the effectiveness of the use of surface-active additives To increase the density of the raw pieces and level parameters. We propose a model that explain schaya efficiency of dopants in the radiation-thermal sintering.

    Keywords: Nickel-zinc ferrite, radiation thermal sintering, base composition, alloying additives, permeability

  • Plane strain elements cylindrical structures under the action of physical fields

    Considered concrete cylindrical body in axisymmetric formulation (plane strain condition), exposure to radiation and temperature effects. The influence of physical fields on the mechanical characteristics of the material of the body individually or in the aggregate. It is shown that the stress-strain state of the cylinder, under the joint account of the different physical fields, is very different from the stress-strain state, obtained by summing the individual results of the calculation of each factor separately, that is, the superposition principle is not respected.

    Keywords: temperature field, radiation, stress-strain state of the cylinder, the change of physical and mechanical parameters of the body

  • Effect of additives on the properties of the alloy radio-Mg-Zn-ferrite obtained by sintering heat-radiation

    Promising absorbing materials along with a Ni-Zn-ferrites are Mg-Zn-ferrites, as they are also intensively absorbs electromagnetic waves in the frequency range from 50 MHz to 1000 MHz. The main advantage of the Mg-Zn-ferrite is used as an inexpensive raw material magnesium oxide. The paper presents the results of research to improve the efficiency of broadband radio-magnesium-zinc ferrite by increasing the contribution of the dielectric loss. The influence of alloying elements of the atmosphere gas and cooling after the sintering thermal radiation by absorption of electromagnetic waves. Confirmed cooling efficiency of products after sintering in an atmosphere with reduced oxygen partial pressure to increase the dielectric constant. A model is proposed to explain the increase in the dielectric loss ferrite during cooling in a reducing atmosphere.

    Keywords: radioabsorbing ferrites, microstructure grain boundaries radio measurement radiation thermal sintering

  • Increase of efficiency of use of the resource base as a way of ensuring sustainable development of the fuel and energy complex

    Discusses various aspects of ensuring effective functioning of the enterprises of the fuel and energy complex. The substantiation of the composition of resources, groups of indicators to assess the efficiency of the fuel and energy complex enterprises. Justified types of resources, define technical and socio-economic development of the enterprise. The author proposes to the elements of production include indicators reflecting the quantitative and qualitative composition of the means of labor, subjects of work and technical equipment. Justified measures on the creation of an interconnected system of indices, which will analyze the changes in the industry with the purpose of planning and realization of actions aimed at sustainable development of the industry in the future.

    Keywords: fuel and energy complex; resources; enterprise; sustainable development of the power industry; the effectiveness of the functioning of the fuel and energy complex

  • The introduction of a new method of traffic light control on the road network of modern cities

    Traffic light control for urban road network has for several decades been one of the most important areas of study and application in order to ensure maximum efficiency . During this time he developed a variety of techniques and tools , a lot of research . But with the ever increasing number of cars and , as a consequence , poor road conditions and increases in the amount of traffic congestion , require more and more new and advanced techniques that would have allowed not only to solve the existing problems , but also to predict the possible developments in the future. Traffic congestion on the road network of the city continues to be a growing problem of modern cities . Possible reduction of traffic congestion can be achieved either by the constant increase in the volume of road surface, or by reducing the demand for personal vehicles . If we assume that the improvement will be achieved by increasing the number of roads , it is possible to face the fact that it is not always feasible , given the current road infrastructure . Accordingly , it follows that it is necessary to focus on the use of traffic management to reduce congestion and subsequent increase in urban transport mobility .

    Keywords: traffic light control, traffic property facilities, traffic flow, traffic lights, traffic mobility

  • Advantages of application of new icestorm composition above the traditional sand-salt mixture on the objects of travelling economy

    The article is devoted to the comparative analysis of the applied traditional sand-salt mixture on the base of chloride natrium and sand and new icestorm composition on the basis of natural minerals: chloride magnesium (bischofite) and glauconite. Advantages of application of the ecological composition are educed on the objects of travelling economy on ecological, sanitary-epidemiology and technical indexes. The reagent on the basis of natural materials will promote safety of travelling motion.

    Keywords: icestorm reagent, sand-salt mixture, objects of travelling economy, ecological, technical safety