The construction of a two-dimensional tiling by a specific projection of three-dimensional cubic lattice is considered. Different a periodic tiling’s, consisting of equal rhombi, are obtained by different choice of the projection region. They are ordinary a periodic tiling, having local elements of symmetry group С6v and chiral trigonal stacking, built like chiral pentagonal Penrose’s quasilattice [1], which occurs in virus cap sides.
Keywords: Quasicrystal, quasilattice, two-dimensionalquasicrystal, chiral quasicrystal.
The article examines the construction of control plans and priorities ranks of information procedures for the implementation of the optimal information management in an automated information system. Constitute the basis for planning the hash ranks and priorities of both the subjects and objects of information interaction. The optimization process is provided by a choice of grades and corresponding control plans that define the extreme values of the objective function of the system.
Keywords: rank, priority, plan, information services, information procedure.
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In this paper we consider the problem of effective forecasting of electricity consumption for multiple objects in automatic mode. We propose an approach to automation of forecasting process, based on CRISP-DM. There were considered methods of computational intelligence for the data preprocessing - filling the gaps and identification of the emission, methods of construction and adjustment of forecasting models. As the computational basis are used connective models, based on neural networks and on constructive neural networks. There was shown the system architecture that implements the mechanisms of computational intelligence, and was presented the results of the tests.
Keywords: consumption of electricity, forecasting automation, computational intelligence, identification of the emission, connective models.
Is calculated the mean distance between the diamond grains on grinding wheels by their characteristics. Is carried out of the duration, frequency and form of discharge impulses in electro erosion profiling of diamond grinding wheels.
Keywords: electro erosion profiling, correction, the distance between the diamond grains, frequency of discharge impulses, the duration of discharge impulses.
Found that the main sources of noise in the manufacture of concrete products are various types of vibration exciters, but the sound energy is emitted mainly metal surfaces that transmit vibrations concrete. A study of the formation and noise emission.
Keywords: sound pressure, the concrete mix, work area, molding plant concrete products plants
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Today in modern engineering is the issue of improving the performance of high-temperature processing of products and composite materials (plastics). When machining holes such products plays a decisive role to increase the rigidity, the wear resistance of the cutting tool and as a consequence, reduction of marriage. Increased tool life is possible in two ways: by improving the physical and mechanical characteristics of the material of the cutting tool (eg, carbide) or developing the most efficient design. Study and practical use of the regularities of cutting plastics and other composite materials used in engineering, allows to better manage them in order to increase the productivity and efficiency of processing. Comparison of patterns of the cutting process with the laws of plastic metal cutting process is only necessary to consider the difference between them in the processing of machine tools using cutting tools.
Keywords: cutting tools, composite materials, processing holes.
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The kinematic synthesis of the unknown parameters of the rectilinearly - enveloped mechanism of jaw crusher presented, which is linked dependencies with known parameters of the crushing chamber, unloading and loading slot. The dependence obtained on the basis of the method of interpolation approximation of functions. The description jaw crusher with complex movement of an agency on a basis rectilinearly - bent around the mechanism is submitted, her dignity and the area of application
Keywords: rectilinearly - enveloped mechanism, kinematic synthesis, and jaw crusher.
The problem of restoring gaps in socio-economic data. Used konnektivistskie principles describe multilevel relationships between socio-economic targets for restoring missing data. Proposed fuzzy method of filling gaps in the data socio-economic parameters based on the analysis and formalization in terms of fuzzy logic relationships between the parameters of the same type in other network objects. To justify the effectiveness of an example implementation of the method on data from rural areas of the Volgograd region.
Keywords: socio-economic parameters, gaps in data, fuzzy logic, data recovery.
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In the present work we have carried out studies of the processes of growth of zinc oxide nanorods by hydrothermal method on silicon substrates. As sublayer catalyst used growth caused by laser deposition of zinc oxide, various thicknesses. Studied selective growth of nanorods on the microstructure of thin-film sub-layers of zinc oxide obtained by laser deposition. The optimal conditions for the synthesis of: the concentration of Zn (NO3) 2 - 0.4 mol / l, hexamethylenetetramine - 0.4 mol / l, the concentration of NH3 · H2O - 0,01 mol / L -0.01, process time 4:00, the process temperature is 80 ° C. Sublayer thickness of zinc oxide, as shown by experiment, the growth of the rods has no noticeable effect. Oriented arrays of nanorods were obtained up to 500 nm and a diameter of 60-150 nm.
Keywords: zinc oxide nanorods and micro-oriented arrays of nanorods, hydrothermal synthesis method, selective growth, thin film underlayer.
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The article reveals the relationship of concepts such as cost-effective development of transport and environmentally safe economically sustainable development of society. Manage transport factors influence on the environment, the rational and efficient use of natural resources, development and use of evaluation criteria will ensure management decisions aimed at ensuring the environmental and economic security of the country.
Keywords: transportation, management, ecological and economic security, the criterion evaluation technique.
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The technique of forming a two-stage system of transportation that allows you to determine the optimal location and number of transfer stations. Feature of the technique is the possibility of adapting the system generated to local conditions investigated territory.
Keywords: municipal solid waste, transportation process, land category, sanitary - protective zone, range of accommodation, critical distance.
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