In this article, we propose methods for designing fault-tolerant structures for Field Programmable Gate Arrays (FPGAs) by forming an internal structure of macro cells (LUTs), with the possibility of correcting single reversible faults in the circuit’s gates. To improve fault tolerance, the failure tolerance of a typical macro cell was assessed, the most vulnerable areas were identified and the most vulnerable parts of the macrocell were protected by means of triple modular redundancy methods. Depending on the expansion of the protected area, various versions of the built-in redundancy were obtained, and various options for minimizing the built-in redundancy were proposed. Experimental work was carried out to form fault-tolerant ISCAS'85 combinational circuit designs in the basis of fault-tolerant FPGAs.

Keywords: combinational circuit, FPGA, field-programmable gate array, LUT, logic synthesis, increase fault tolerant, computer-aided design (CAD), fault injection, single event transient

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

Studied the possibility of disposing of chromium waste galvanic production, their use in the manufacture of ceramic products and production of building materials based on hydraulic binders. The plasticizing effect of galvanizing is revealed and it is established that at use of slurries in the form of additives in concrete and solutions leads to decrease in consumption of cement at equal durability.

Keywords: electroplating sludge, industrial waste, chromium-containing waste, recycling, concrete additive, plasticizing effect

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.

Optimal usage of territories appears as applicable problem at the present time. Its description is hold in geographic information systems (GIS) and may be used for solving ecological, administrative, transport and logistical tasks. We consider to use topographic maps for production GIS. By now algorithms for reconstruction of plan of contour lines are developed. This plan of contour lines appears as matrix of spatial scattered data, which are needed to interpolate for production a digital terrain model. There are some common algorithms for interpolation (linear, cubic spline, natural), but they aren’t fit for good shape reproduction. We consider an algorithm based on 3-class classifier of points. Points of 1st class are between two contour lines and are interpolated by n nearest points of the nearest contour line and the nearest point of another line. Points of 2nd class are inside of one contour line, accord with peaks or depths and are interpolated with similar algorithm and value of extremum which is taken by mark of height is used. Points of 3rd class are between a contour line and boundaries of topographic map; their interpolation may be taken by union of several maps and they become points of 1st class. Processing speed, maximal error and mean-root square error are used as measure of quality. Considered algorithm has shown improvement by comparison with other methods with decrease of errors and nonthreatening increasing of processing time.

Keywords: interpolation, geographic information system, topographic map, digital terrain model, scattered data

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

The issue of improving the coverage of highways of federal significance is under consideration. Measures are proposed to ensure the reliability and durability of coatings, taking into account the experience of road construction in the USSR. Measures to improve the efficiency of construction

Keywords: construction organization, construction economics, building structures, road surfaces

Abstract: the necessity of planning and cost adjustment during construction works is substantiated. The article deals with the consequences of non-compliance with rules and building regulations, which lead to additional financial costs for repair and restoration due to the destruction of both individual structures and the object as a whole. System errors in construction technology during Foundation reinforcement and installation are revealed. Made normative calculations for the implementation of the construction project. The article consists of introduction, two parts and conclusion. In the introduction the necessity of monitoring compliance with industry regulatory legislation. In the first part of the article "cost Planning in construction" substantiates the need for business planning based on economic approaches. Options for the implementation of ecological and safe construction materials in the construction of buildings. In the second part of the article "analysis of deviations from standards in construction" a detailed study of the individual stages of design and construction of buildings, which revealed the harmful effects of both gross errors and minor deviations from the established building standards. Clearly confirmed violation of the rigidity and strength of the Foundation of the building due to non-compliance with construction technology during reinforcement and installation. The algorithm of engineering calculations for the construction of the foundations of the building: schemes of works on pouring foundations and the location of formwork elements, costing and schedule of construction works, ensuring the reliability and safety of the building during prolonged use. The conclusion contains the main conclusions of the article and recommendations on cost planning in construction. In work not only consequences of use of fire-dangerous materials at erection of walls of buildings are revealed, but also constructive recommendations based on knowledge of physical properties of the construction materials providing ecological safety are given.

Keywords: technical justification, planning, regulations, construction, Foundation, costing, heat saving, waterproofing, thermal protection, fire hazard, environmental hazard, vapor permeability

The studies are devoted to a comparative assessment of the average performance characteristics of the timber stands of the regions of the Northern economic area (NEA). The work presents the distributions for the NEA regions: the total timber resources, the timber resources of ripe and over-mature plantations in operational forests, the volume of logging, and the volume of the cut-off area and the species composition of stand. Based on the evaluation of the performance characteristics of timber stands and individual trees, the weighted average characteristics of the model stand for NEA were calculated. The obtained results of a comparative assessment of forest resources can be used in forecasting the productivity and operating costs of forest harvesting machines operating in the conditions of NEA forests.

Keywords: timber resources, timber stock, estimated cutting area, volume of logging, average timber stand, volume of stem, species composition of stand, model stand

The method of control parameters of electro-acoustic transducers of the piezoelectric type, composed of an acoustic antenna arrays by electrical measurements is described. A convenient practical implementation of this method by determining the integral of active component of conductivity (area under curve) is proposed .

Keywords: acoustic antenna array, electro-acoustic transducer, piezoelectric element, control of parameters

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

Discusses the current problems of calculations of reinforced concrete slabs. A full calculation of the reinforced concrete Foundation slab of a 17-storey residential building based on the finite element method using the estimated complex with the collection of loads in accordance with SP 20.13330.2011 "Loads and impacts". We study the dependence of the distribution of the zones of maximum precipitation of the plate from the shape of the building and the location of the loads. By results of calculations the analysis of obtained results and conclusions.

Keywords: the finite element method, the coefficients of the elastic Foundation, the maximum settlement of the building, SCAD 11.3, the coefficient of bed

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

The article contains material reflecting the prospects of development of hydrothermal resources formation waters of the Azov-Kuban artesian basin.

Keywords: hydrothermal energy, groundwater, methane gas saturation

Repair of the bridge superstructures made to restore the performance of the facilities from damage incurred during operation. The main technical measures to improve the durability of structures buildings are reconstruction work on the prevention of water penetration from the roadway construction on the underlying design of superstructures and supports. Repair badly damaged sections of shelves extreme beams of the superstructure shall be mopping up indicators of acidity of not less than pH> 12 (concrete), followed by reduction of the dimensions of the concrete B30; F300 (in Spanish hlor.solyah.); W8 with pre-staging of additional rebar epoxy glue. Repair surface defects superstructures beams includes: To prepare and clean the defective concrete surfaces slabs beams superstructures sandblasting method, a chemical cleaning of the valve; Repair of surface defects of slabs beams non-shrink fast-hardening dry mix containing polymer fiber EMACO®90 and EMACO ®S88C; To restore the protective layer thickness of 20 to 40 mm is provided the use of a repair composition EMACO®S88S. For hydrophobic facades superstructures, attachments, etc. used water repellent water-based to protect concrete surfaces, which is designed for use on old and new concrete surfaces of bridges MASTERSEAL®303V.

Keywords: repair; concrete bridge; superstructures; fittings; waterproofing; anti-corrosion coating; MASTERSEAL; EMACO