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  • Comparison of European countries in the waste industry

    The article is devoted to the study of foreign methods of waste processing and the use of secondary resources. The article also considers the peculiarities of the countries ' legislation in the field

    Keywords: waste, secondary material resources, landscaping, recycling, electrical energy, solid residue, chemicals, leakproofness, incineration, filtration, organic, decomposition, recycling, energy efficiency, emission

  • Application of parametric design in finite element modeling

    The method of parametric modeling and design based on the example of a building is studied, the architectural image of which is a set of circular helical and cylindrical surfaces defined by coordinates through functions of the corresponding surfaces in the SAPPHIRE software. Alternative methods for specifying surfaces in the SAPPHIRE PC, AutoCAD with subsequent export to the LIRA PC for engineering calculations of the frame of the building for various combinations of loads by the finite element method are presented. The object of the study is a 360-meter-high building with a hardness core in the form of a cylindrical shell of revolution. The height of the floor is 3 m. Around the rigid shell there are three circular helical surfaces that "rise" in a spiral upward along with the core of rigidity to a mark of 360 meters from the level of the ground floor. One of the most universal ways to create a surface is to specify it through a formula, because you can easily change the shape and appearance of the surface without manually editing the geometry of the model in the drawing. The development of the parametric architecture calls for the creation of new approaches to the calculation of unique buildings and structures, the improvement of software complexes that implement the finite element method, and the appearance of new varieties of finite elements with curvilinear boundaries.

    Keywords: parametric architecture, surface, shape of the object, shell, curve, model, geometry, program, formula surface, helical surface

  • Modeling housing ball joint passenger car

    The compare the durability of the existing ball bearings (SHO) with the polymer homogeneous element with the durability of the modified supports, a cell model with the averaged placement of the modifier in SHO substrate and a model for bringing the multilayer sho body to the equivalent single-layer one are constructed; calculations of contact pressure, contact deformations and stresses are performed. The calculation takes into account the rheological and physico-chemical properties of the components of SHO substrate and modifier, the influence of the environment. As a result of calculations, it was found that at all points of the contour the material experiences a biaxial plane two-dimensional stress state, called pure shear with the presence of shear stresses. The most intense point of danger is the point lying in the center of the platform of contact of details.

    Keywords: ball bearing, durability, modeling, polymer material, granule, modification

  • Research of fine dust pollution of sanitary protection zones of gypsum production enterprises

    The article presents the analysis of dust pollution of atmospheric air in the vicinity of the enterprise for the production of gypsum products. Given the dynamics of changes in the concentration of fine dust, and also investigated the characteristics of the distribution of concentrations of fine dust РМ0.3, , PM2. 5, РМ5 , PM10 etc.

    Keywords: atmospheric air, fine dust, PM0.3, PM0.5, PM1.0, PM2.5, PM5 and PM10, dust concentration, speed, wind direction, air humidity, integral mass distribution function, particle diameter by diameter

  • Modern Trends in Ensuring Energy Efficiency of Mansard Buildings as Part of Structural Reconstruction

    The paper reports that there currently exist various technologies and methods for achieving energy efficiency of reconstructed buildings and facilities. It highlights the fact that practically all mansard construction technologies conform to the up-to-date requirements for energy efficiency and resource conservation. At the same time, the analysis of a number of foreign and national publications shows that the modern trends in ensuring energy efficiency of buildings and facilities are based on the use of solar, thermal and biocincrete panels, which also prove to be environmentally friendly.

    Keywords: mezzanine, solar panels, thermal panels, biocincrete panels, efficiency ratio of solar energy generating panels, energy efficiency, environmental safety

  • Calculation and assessment of the impact of the constructed hostel on the construction of the existing building in two ways, located at the address: 339th Infantry Division, 12 B in Rostov-on-don

    The calculations and assessment of the impact of the built dormitories on the design of the existing building in accordance with the requirements of SP 22.13330.2011 and techniques of the FEM program Plaxis 2012.01 (Build 8962)

    Keywords: pile foundations, Plaxis program, Geology

  • Calibrating the triaxial accelerometer according to a number of measurements with different orientation

    The problem of calibration of a three-axis acceleration sensor is considered. A number of measurements obtained with the sensor at its different orientations in space are used as initial data for calibration. It is assumed that the sensor is stationary for each orientation variant. The measurement data are averaged at each static sensor position, and the averaged results are used as parameters in a system of nonlinear equations that are solved by the Levenberg-Marquardt method. The results of the proposed method in the article are presented in the experiment with a real sensor, which allows to check its effectiveness.

    Keywords: three-axis accelerometer sensor calibration, the sensor coordinate system, the coordinate system of the gravitational field, the rotation of the coordinate system, the matrix of coordinate transformation, the correction factor, the average value of the me

  • The concept of development of social infrastructure of the Suvorovsky district of Rostov-on-don

    The article deals with the idea of developing the social infrastructure of the new microdistrict "Suvorovsky" of Rostov-on-don. Prospects for the growth of the neighborhood, and the opportunity in the near future to become the core of the agglomerations of the city of Rostov-on-don.

    Keywords: neighborhood, residential complex, state contract, landscaping, social infrastructure, the core of agglomerations, the project activities

  • Influence of the dielectric properties of the medium on the optical properties of enclosed gold nanoparticles

    In this paper, samples containing gold nanoparticles (NPs) distributed in different optically transparent media have been synthesized and characterized. A liquid (aqueous) and a solid (porous silicate glass and polymer (polyvinylpyrrolidone)) media were used. The samples obtained were characterized by optical spectroscopy and electron microscopy. The position of plasmon resonance band was analyzed depending on the dielectric constant of the medium.

    Keywords: gold nanoparticles, colloidal solution, polymer, porous glass

  • About laws of distribution of size PM10 in the atmosphere of Kabul

    The article presents the results of studies conducted by foreign and Russian authors on the assessment of urban air pollution with fine dust of natural origin

    Keywords: air quality, dust, fine particles PM10, natural origin, atmosphere

  • Improving the efficiency of operational reliability in terms of organizational, technological and constructive solutions

    The problem of improving the efficiency of construction through the use of advanced methods of labor organization is studied. Proposed improvement works by reducing, modernization of production

    Keywords: organization of construction; operational reliability of buildings; efficiency of labor organization

  • Mechanism of hydration and structurization of wood concrete

    In this article the relevance of development of the wood concrete meeting the modern requirements for an ecological component and energy efficiency is considered. Features of the mechanism of structurization at hydration of the cement knitting and organic filler with use of the X-ray diffraction analysis are shown. Indicators of concentration of basic elements in the cement test without organic filler are defined and at his existence. The comparative analysis of structure of steam solution of wood concrete and structure of solution from quick-hardening cement with use of data of a rastroelektronny microscope is carried out.

    Keywords: Ivashchenko Y.G., Laushkina V. A., Timokhin D.K.

  • Design of a protection of a ditch of a house in the conditions of dense city building in Rostov-on-don

    The article describes the design solution for the device of enclosing rows of bored piles and pile-anchors, ensuring the stability of the walls of the pit in the construction of structures under construction and excluding their influence on the adjacent structures. The results of calculations of the enclosing series are presented..The article describes the design solution for the device of enclosing rows of bored piles and pile-anchors, ensuring the stability of the walls of the pit in the construction of structures under construction and excluding their influence on the adjacent structures. The results of calculations of the enclosing series are presented.

    Keywords: pile a row, the CFA piles-anchors, the fence of the pit

  • Parametric architecture

    The article considers the aspects of parametric modeling, his key features, and the question of the relevance of this direction in the design of unique buildings and structures. Are presented surfaces that have not yet acquired the mass character of design and erection, or have not been built anywhere else, but have a high potential to become in the future a great adornment of urban development. In construction, a very limited number of thin-walled structures are used: cylindrical, spherical, shallow transfer shells, conical, shells of rotation. This is only a small fraction of the existing variety of geometric shapes developed by geometers, so the parametric architecture has a great potential for application. The finite element method allows modeling objects of a parametric architecture, approximating buildings and structures with rod, plate and shell elements. The parametric architecture expands the scope of the finite element method and allows the creation of unique high-altitude and long-span buildings and structures. However, the finite element library of the software complex requires modernization and expansion to design unique surfaces of the parametric architecture.

    Keywords: parametric architecture, parametric modeling and design, surface, shell, shape, curvature

  • On some characteristics of the development suhodolnyh quarries of sand in the permafrost zone for oilfield

    АнглийскийПеревести вGoogleBingThis article is devoted to the development of suhodolnyh pits in the permafrost zone. For the development of fields in the Arctic requires a large amount of sand for engineering training close to roads, well pads, sites for the installation of complex gas treatment, high pressure pump stations, the Central points of separation and other site projects. Development suhodolnyh quarries of sand in the Arctic requires further activities for the preparation of the sand to a condition suitable for construction. Range transport of sand from the quarry to the designed object will be considered acceptable when the object is within 20 km of the planned quarry, the transportation distance is more than 20 km puts an end to the possibility of further implementation of the project and directly affects the net present value of the project. Improvement of technology of development of dry sand in quarries can positively influence the Economics of the projectThis article is devoted to the development of suhodolnyh pits in the permafrost zone. For the development of fields in the Arctic requires a large amount of sand for engineering training close to roads, well pads, sites for the installation of complex gas treatment, high pressure pump stations, the Central points of separation and other site projects. Development suhodolnyh quarries of sand in the Arctic requires further activities for the preparation of the sand to a condition suitable for construction. Range transport of sand from the quarry to the designed object will be considered acceptable when the object is within 20 km of the planned quarry, the transportation distance is more than 20 km puts an end to the possibility of further implementation of the project and directly affects the net present value of the project. Improvement of technology of development of dry sand in quarries can positively influence the Economics of the project

    Keywords: permafrost, perennial cryolithozone, quarries, sand, sand, career preparation to sand mining, development of oil and gas fields.production