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  • The use of unmanned aerial vehicles when establishing zones with a mode of use and their current control

    The legal status of water bodies implies special measures aimed at preserving and preventing negative processes within the boundaries of a water body. A zone with a special mode of use is the territory, within the boundaries of which the mode of using the object for the purpose of protection and (or) to protect the environment is established. In modern geodesy, special satellites are used that are part of the global positioning system. The object is tied to the existing geodetic network, the identification marks are laid in a minimal amount, then aerial photography is performed and the photoplans are “stitched”. The emergence of electronic and unmanned measuring instruments during a complex of geodetic works greatly facilitated the work of geodetic engineers, allowing them to increase the productivity and accuracy of work performed when using such instruments.

    Keywords: water protection zone, zones with a special mode of use, water bodies, unmanned aerial vehicles, coastline, coastal protective strip, aerial photography, GNSS receivers, surveying equipment, orthophotomap

  • Numerical modeling and analyze of discontinuous signals spectrumenterprise

    The research of influence of periodical signal discontinuity on spectrum form is considered in the article. The numerical modeling of the system of discontinuous signals is performed. The spectrum of the system built from time discreet sampling is analyzed. The plots of the sample correlation coefficient between spectrums of continuous and discontinues signals are shown in the article. The research is needed for the development of digital measuring system for quartz plates frequency detecting.

    Keywords: amplitude signal spectrum, discontinuous signal, quartz plates

  • Modeling of changes of physicochemical characteristics of potash fertilizers at storage and transportation

    A model system was designed and test  trials of physical and mechanical characteristics of small – crystalline and granular flotation potassium chloride are studied. This model system allows to design storage and transportation  of fertilizers in bulk in railway wagons and it has the same static and vibrational load as real system. The effect of temperature and relative humidity of the air on hygroscopy of small – crystalline and granular КСl were studied. Furthermore the influence of static load, and time length  of compression process of fertilizing layer and parameters of static and vibrational load on composition of КСl granules were investigated. It was experimentally proved that the humidity increase (0,5 %) of granular КСl and the  increase of static load and time length  of compression process of product during transportation in bulk lead to increase of compaction degree and caking ability of product. Research of the influence of high static load (10-30 kg/sm2) and time length of compression process of fertilizing layer on caking ability and degree of compaction show that small – grained KCl has smaller degree of compaction and considerably higher value of caking ability in comparison with granular KCl.

    Keywords: Potash fertilizers, storage and transportation, hygroscopy, caking ability, degree of compaction, commodity characteristics of fertilizers

  • Especially the use of mandatory access control policies in systems of microfinance population

    The article deal with technological scheme of mandatory access control in the operation of MFIs in relation to the three main processes of microfinance: a preliminary contact with the customer on how to receive the micro-loans, micro-loans directly formulation and monitoring of the obligations of the parties (especially financial) to the contract. The above scheme is based on the international standard for the organization of the Open Systems Interconnection.

    Keywords: mandatory policy, the MFI, access control, process, microfinance

  • Experemental researches of the receiving modes of a rough metal surfaces in vacuum arc discharge

    In this work experimentally investigated the possibilities of the new method of obtaining adjustable roughness on metal surfaces electrothermal influence of mobile cathode spots in vacuum arc discharge. Presents the results of processing of various surfaces using this method. Proposed working modes of processing of metal surfaces with the aim to receive as minimum and maximum roughness.

    Keywords: roughness of metal surfaces, vacuum arc discharge, cathodic spots

  • Main methods of compound details irregular optimal packing on sheet material problem solving

    The paper deals with review of main methods of compound details irregular optimal packing on sheet material problem solving. Existing methods and approaches to solve compound details irregular optimal packing on sheet material problem were descibed. The classification of such methods and approaches was proposed. The most perspective approaches to solve irregular packing problem were identified

    Keywords: cutting-packing, irregular shaped cutting, classification, methods, approaches, complex form

  • The kinetics of electroreduction of zinc sulfate electrolyte in the presence of additives of surfactants

    The kinetics of the electrodeposition of zinc to the steel base of the sulfate electrolyte supplements with synthetic surfactants was studied. Found that at potentials more positive than the equilibrium value the process of pre phase zinc deposition. Additives synthesized organic compounds adsorbed to the surface of the electrode at its cathodic polarization, increasing of overvoltage process. The adsorption is in the range of 0,5•10-7 to 2,6•10-5 mol/сm2.

    Keywords: zinc, electrolyte, electrode, surface-active agents (surfactants), electrodeposition, adsorption, diffusion coefficient, and pre phase deposition

  • Formation of organizational and technical building systems, repairs of buildings and structures (for example heat and power companies)

    The article  consider the problem of managing the operational reliability of thermal energy complex enterprises. To improve the efficiency of the organization of repair and reconstruction work will form the organizational and technical building systems. Simulation of complex organizational and technical building systems allows to find effective organizational and technical solutions, as well as to predict their possible development in a variety of situations, the probabilistic nature.

    Keywords: operational reliability, organizational and technical building systems, modeling.

  • The development of regression models for evaluation of terminal operations and traffic flow on adjacent road network

    Regression models for evaluation of terminal operations and traffic flow on adjacent road network are defined. By means of microsimulation, the processing time for each vehicle at the each gate set limits the maximum values of the input rate, which causes the average queue length not exceeding the value of 2.5 car.

    Keywords: microsimulation, maritime terminal, traffic flow, queue length, delays and waiting times

  • Information about authors (№4, 2013)

    Information about authors of issue №4 (2013)

    Keywords: authors

  • Digital proton magnetometer to measure the geomagnetic field

    Digital compact proton magnetometer was created for measure the geomagnetic fields, including the fields of high heterogeneity. We described design of the instrument and its principles of operation. This device is using implemented digital filtering techniques and Prony method to determine the frequency of the desired signal. The experiments were made in the fields of high heterogeneity and demonstrated the possibility of precise measurements in the fields with a gradient of up to 8 mT / m. The device can be used as a metal detector, as well as for magnetic prospecting, geological studies, etc.

    Keywords: nuclear magnetic resonance, free precession, proton magnetometer, geomagnetic field, digital filtering, Prony method

  • The modelling of tne geopolitical processes in the world regions under glocalization and its structural levels

      The article analyses the problem of applying the scientific method of modeling to the investigation of geopolitical processes taking place at the world regional/sub regional “sites”. Preceding from three possible approaches to studying geopolitical dynamics under glocalisation, that is description, formalization and quantification, the author analyses three structural levels of geopolitical modeling. With this purpose in view he analyses the peculiarities and such constituents of its modification as ordinary, conceptual-graphical (cognitive) and mathematical modeling. Special attention is given to conceptual-graphical modeling and its specific language. Admitting the possibilities of using precise mathematical methods and procedures in geopolitics, the author takes into consideration their scantiness. In this respect the validity of mathematical methods and procedures must be provided with quality expert evaluation. The author's message is that the use of heuristic options of modeling in regional geopolitics may serve as the pledge to growing science capacity of this field of knowledge.

    Keywords: geopolitics, world region/sub region, glocalization, situation analysis, mapping, map, modeling, modeling of the geopolitical processes, usual (simple) geopolitical modeling, conceptual-graphical (cognitive) mapping, graph

  • Statement of the problem of optimization of hydraulic modes of water supply of high-rise buildings and buildings with unusual design and space-planning decisions. Energy savings in engineering systems.

    The basic problem in systems engineering (water), high-rise buildings, and buildings with unusual design and space-planning decisions. The task of research work in this field - the development of the algorithm optimization of water supply systems of buildings.

    Keywords: water system, optimization, hydraulic reliability, energy efficiency, automation, the algorithm