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  • The experience of building piled foundations of the piles on nonuniform basis during the construction of a 17-storey residential building in Rostov-on-don

    The article describes the experience of the device of pile foundations under the multi-storey building in difficult engineering-geological conditions in Rostov-on-don

    Keywords: Drilling piles, test, conductor pipe, sandconcrete, foundation

  • Economic mechanism of adaptation

    Problems of theoretical issues of adaptation economic mechanism forming are considered. The theoretical justification for the functioning of the economic mechanism of adaptation through the use of the basic principles of adaptation and adaptive enterprise, the conceptual foundations of adaptive accounting and control systems functioning, engineering methodologies of adaptive accounting and adaptive engineering tools is held. Using the principles of adaptation is considered from the point of view of the organization and methodology of adaptive accounting. We consider the nature, value and feasibility of a systematic, comprehensive and situational approaches to adaptive accounting, information-dimensional approach to accounting. The engineering methodology maintenance of the adaptive accounting on the basis of the evolutionary-adaptive balance theory positions is shown. Attention is also given to the substantiation of the structured plans of accounts adaptive evolution using possibilities. The basic idea of adaptive engineering tools using is to ensure the integration capabilities of adaptive accounting system based on their integration into the structure of the plan of accounts. The structural elements of the economic mechanism of adaptive change management based on an alternative choice and a multiplicity of solutions are identified. Attention is given to the interpretation and implementation of the adaptive accounting results.

    Keywords: adaptive management, adaptive enterprise, economic mechanism of adaptation, adaptation principles, evolutionary-adaptive balance theory, adaptive accounting, adaptive architecture model, structured plan of accounts, adaptive engineering tools, derivative

  • The interconnected control system of heating and ventilation installations in the protected ground

    Consider the use of management system of heating and ventilation plants in greenhouses, uniform distribution of heat and humidity in the area of biological objects, the use of an improved system of management regimes of the microclimate in the protected ground on the basis of programmable smart relays

    Keywords: power consumption, temperature-humidity conditions, microclimate

  • The analysis of means of protection of a metalwork from corrosion

    The article provides an example evaluation of the technical condition of building and handling machines in terms of corrosion resistance. Using functional method of determining the weights estimated sufficiency compositions anticorrosion treatment building and handling machines.

    Keywords: The sufficiency condition, the generalized criterion, a metric multiplicative convolution operator on the set of individual criteria

  • The studying of oscillations of the corpulent cantilever rod model with a defect

    Defined criteria for identification of defect parameters, on the basis of the analysis of the different modes of own fluctuations, with the use of finite element modal calculation console corpulent model of a rod with a single defect. Developed finite element model of a universal complex . Considered corpulent (3-d) model on the basis of 3D finite element Solid92. When solving the problem considered on 26 oscillation modes depending on the size of the defect and its location.

    Keywords: Damaged, defective, swing, cantilever, frequency

  • Modelling of rods with defects with different types of fastening

    The task of identification of defects in rods with different variants of fastening. In the basis of lies method parameter identification based on an analysis of the frequencies and parameters of natural modes of the structure. Built model of the rod design has defects fluctuations, using finite element of the complex 

    Keywords: Defect, damage, rod, the oscillations of the cantilever rod

  • Microwave band-pass filter on waveguides of complex cross-section, integrated into a multilayered chip with SIW technology

    The possibilities of waveguide elements realization in the structure of multilayered integrated chips of centimeter and millimeter ranges with SIW (Substrate Integrated Waveguide)-technology application are considered. The approaches allowing effectively using in new structures the algorithms and techniques of the electrodynamic analysis and synthesis of passive devices on classical all-metal waveguides are offered. Advantages of use in SIW structure the waveguides of complex cross-section are considered on the example of the microwave band-pass filter.

    Keywords: A.A. Gadzieva, V.V. Zemlyakov, S.V. Krutiev

  • A hybrid evolutionary algorithm for solving linear systems of equations describing the circuits

    The article describes the main problems of circuit simulation. The problem of solving ill-conditioned systems of linear algebraic equations (SLAE) of large dimension. The modified algorithm is a linear algebraic solutions. Described a hybrid evolutionary algorithm for solving linear systems based on the proposed modified method. The results of the pilot study and comparison of the algorithm with the algorithms based on the traditional methods for solving linear algebraic equation, which confirm the advantages of the hybrid evolutionary algorithm.

    Keywords: Genetic operators, evolutionary algorithm, the system of linear algebraic equations, computer-aided design.

  • A systematic approach to the development of automated systems for urban environmental monitoring

      The article analyzes the structure of automated environmental monitoring in Russia and proposed the concept of setting up such a system in the city with advanced industrial and transport infrastructure.

    Keywords: Automated systems for environmental monitoring

  • The investigation of properties of gas sensitive materials based on SiO2SnOxCuOy thin films used in gas sensors for multisensory air monitoring system

    The establishment of automated air monitoring systems is a promising way of the air monitoring devices development. The comparative analysis of literature has shown that thin films based on semiconductor metal oxides are effective and widely used material for air monitoring systems creation. In order to create effective and more sensitive sensors it is important to research processes that occur on the surface of the gas sensitive material when it contacts with different substances. The processes that proceed on the surface of gas sensitive material based on SiO2SnOxCuOy during the interaction with molecules of nitrogen dioxide. Quantum chemical calculations have shown that there are three possible mechanisms of interaction between the molecules of nitrogen dioxide with a surface of gas sensitive material.

    Keywords: multitouch system of the monitoring, gas-sensitive material, molecules of dioxide of nitrogen

  • The development of gas recognition technique using multysensor system for air monitoring

      The problem of air quality control is relevant at the present time. There are a lot of different devices and methods of air monitoring. The promising devices for air monitoring are automated air monitoring systems functioning in real time regime. The basic part of such system is a chemical gas sensor. Gas sensors can be combined into the arrays or so called multisensory systems to increase their effectiveness. Sensor arrays using semiconductor sensors based on SiO2CuOx, SiO2SnOxCuOy, SnOxZrOy, silver-polyacrylonitrile thin films made at department of chemistry and ecology have been investigated in this work. As a result of sensors signals processing gas recognition technique has been developed. The recognition of ammonia, nitrogen dioxide, chlorine has been made.

    Keywords: monitoring, massifs of sensors, semiconductor sensors of gases

  • Development of Gas Sensitive Element Based on Copper Oxides Films for Ammonia Detection

      This paper is devoted to development of gas sensors air control. It is shown that copper oxides are the promising materials for high sensitive sensors. The CuOx film material was syntheses by means of citrate sol-gel technique. The sensors fabricated on the basis of CuOx film material were sensitive to ammonia gas in the range of 25-150 ppm. Working temperature was determined as 180 °C. Such sensors can be used for work area air control of industrial enterprises.

    Keywords: gas-sensitive element, atmospheric air, sensors, copper oxides

  • Study of SiO2SnOxCuOy Sensor Response Stability to Carbon Oxide (II)

      Stability of sensors on the basis of inorganic oxide materials is one of the primary goals by working out of atmospheric air control devices. In this work long-term stability of a sensor response on the basis of the SiO2SnOxCuOy material to carbon oxide (II) exposure in a range of concentration 1-100 ppm is studied. It is shown that the sensor response differs high stability and reproducibility. Continuous heating within 21 days to working temperature (350°С) influence its value negligibly.

    Keywords: stability of a response, sensor, carbon oxide, material of structure of SiO2SnOxCuOy.

  • Ensuring functioning of city system of environmental monitoring of data on the address with production wastes and consumption in Taganrog

      In city system of environmental monitoring works on collecting data on production wastes and consumption of the enterprises of Taganrog are performed. The system includes three sections: quantity and types of a waste; data on places of long storage of a waste; data on the enterprises and technologies of processing of a waste. The scheme of management, maintaining and processing of base of ecological data is provided. Types of the analysis of collected data are considered. 

    Keywords: Production wastes and consumption, monitoring of a waste, municipal control system of a waste, scheme of management of a database

  • Development of technology of fabricating unheated gas sensors based on polyacrylonitrile for hybrid sensor systems

      Technology of fabricating unheated gas sensors based on polyacrylonitrile (PAN) using different temperature and time modes of a two stages IR-pyrolyze is developed for the remote control of the human condition. Gas-sensing elements based on PAN films and cobalt- and copper-containing PAN films are fabricated. Gas sensitive characteristics of the gained samples to CO, Cl2 and CHCl3 in atmospheric conditions are determined. We have found that gas-sensitivity of the samples depends on the composition of the original film-forming solution and on the process parameters of fabricating the film material. Moreover the samples show sensitivity and selectivity at room temperature. The benefits of this study is that films based on PAN and metal-PAN are the most promising material for electronic engineering including gas sensors for the remote monitoring of the human condition.

    Keywords: Nanocomposite materials, gas-sensing layer, metal-containing organic polymers, IR- pyrolyze