The paper proposes a new foam based on cement and the steelmaking slag, which is obtained and developed at the Department of construction materials and special technologies, IAIS VSTU. The purpose of the survey was to obtain an effective insulating material for wall building envelopes, in high-rise housing construction and of the material for use in low-rise construction in the manufacture, which would maximize the use of local raw and production resources. When selecting components, special attention was paid to the resource base of existing enterprises of Volgograd, analyse the products of local manufacturers. The tests were conducted in the laboratory and on the production line. It is known that the slag used in the production of building materials rarely, usually just transported to dumps by truck. At the plants, open hearth plants, slag with shlakovoza buckets are taken and poured as a melt into slag pits. Use water spraying for crushing slag due to thermal shock when the temperature drops.
Keywords: foam, electric furnace slags, heat insulation material, building energy efficiency, building materials
The article is devoted to the development of a methodology for preliminary assessment of the geotechnical situation of the site for the reconstruction of construction of unique buildings and structures and its explanation. Was the method of determining the geotechnical category, the complexity of a new building and highlighted the main aspects of the stages of the methodology.
Keywords: geotechnical situation, unique buildings, investment risks, risk category, category of responsibility of an object category of technical condition of foundations
Paper deals with the analysis and synthesis of geographically distributed systems for storage of hazardous substances from the environmental safety position. Particular attention is paid to the information layer to ensure environmental safety (ES) of these systems, which operates on the results of the processing of regulatory documents, environmental monitoring data, analytical reports, etc. Its operation is based on a system of specialized automated workplaces (AWP), each of which generates a plurality of projections and calculations in order to provide ES, using information on three levels of detail: the physical, technological and logical. The structures of mathematical, informationtion, software and hardware provision of AWP are discussed. It is shown that the proposed AWP structure can be used in the design of the various systems for storage of hazardous substances and is aimed to provide ES in their operation.
Keywords: geographically distributed storage systems, hazardous materials, environmental security, information maintenance, environmental specialists, workstation
The article consists of overview of stages of forming industrial buildings architectural types and contemporary trends and principles of industrial buildings topical organization and reconstruction.
Keywords: architecture, industrial buildings, reconstruction of industrial buildings
In the article methods of utilization of PET. The chemical method chosen by us is one the most priority types of the processing of plastic containers (bottles - PET). Also results of some physical and mechanical tests of the modified PET
Keywords: PET, chemical modification, polyisobutylene, recycling, extrusion
From the standpoint of environmental safety paper deals with the analysis and synthesis of geographically distributed systems for storage of hazardous substances. The main attention is paid to the technical maintenance of ecological safety of these systems which is determined by the layer of tool control system (TCS) in ecological situation monitoring channels, storage of hazardous substances and protection parameters of perimeter storage. Operation of TCS relies on the use of fiber-optic sensors based on fiber Bragg gratings in each of said channels and their methods of polyharmonic probing. Defined principles of joint measurement of temperature and pressure as the main storage options, optical absorption measurements of gas concentrations using remote multicomponent fiber optic infrared analyzer for monitoring the environmental situation are discussed. The information about the construction of storage areas perimeter security systems sensors are given. It is shown that the proposed TCS structure can be used in the design of the various systems of hazardous substances storage and is aimed at addressing issues of environmental safety in their operation.
Keywords: geographically distributed storage systems, hazardous materials, environmental security, technical support, fiber Bragg grating, measurement of temperature and pressure, multi-fiber optical infrared gas analyzer
The paper deals with the issue of establishing recognition of graphic objects in the video stream based on multi-agent recursive cognitive architectures. A structure of the system, a hierarchy of agents and their interactions. The article describes the developed messaging protocol between the subsystem coding information obtained from a video input device and the core of the multi-recursive cognitive architecture
Keywords: multi-agent system, cognitive architecture, the agent, recognition, videoraspoznavanie, multimodal data, artificial intelligence
The article proposes to use to describe the polar equations of nonlinear resistive two-terminal corresponding differential equations. This simplifies the implementation of non-linear resistors based on analog-digital-analog element. Constant coefficients in the mathematical model are treated as constants of integration. Therefore, the element setting the desired current-voltage characteristic is accomplished by setting appropriate initial conditions.
Keywords: Non-linear element, a mathematical model, pole equation, the differential form
The article discusses the basic concepts of accommodation of passenger and freight transport in the device nodes of urban agglomerations. The size of settlements classification of transport hubs and nodes were identified by mutual arrangement of the main complex devices.
Keywords: Transport hub, classification, agglomeration, methods, formation, a railway junction, transport work.
In the article the characteristic of the position of small business in the economy of country, are designated the factors limiting business activity of small construction companies and also the proposed priority measures to stimulate the development of small business by the state.
Keywords: sector of small business, small construction organization, stable financial state, measures of state support, sustainable development
In the article the questions of increase of efficiency of spending of budget funds at the regional level. An assessment of the factors that have a negative impact on the principle of rationalism in the use of budgetary funds, determined the ways of their optimization.
Keywords: Budget, budget, efficiency of budget spending, the law on the contract system, the budget deficit
In the article information is presented about plastic properties of the heated porous powder-like materials from ferrous powders at tests on a bend. Dependence of tangential eτ, radial eρ is set and transversal ez deformations from initial porosity of standards and grain-size distribution. Experimental confirmation of hypothesis of flat sections and unchanging position of neutral surface is got at the bend of the heated porous standards.
Keywords: plastic property, heating, porous powder-like material, bend, tangential deformation, radial deformation and transversal deformation
Content Based Image Retrieval is a one of the most popular search methods used in large-scale databases. Comparison the query image with each image of large scale database leads to lowering the systems performance. In this article are considered different clustering algorithms. They may be used for optimizing image searching access period.
Keywords: CBIR, clustering, K-means, fuzzy C-means (FCM), Possibilistic C-means (PCM), bio inspired algorithm
It was found that increasing the temperature of thermochemical activation of up to 750 °C and increasing the dosage of potassium hydroxide to 2.1 g / g of activated carbon (AC) synthesis of hydrolytic lignin has a positive influence on the formation of adsorption and structural properties of the AC.
Keywords: thermochemical activation .potassium hydroxide , activated carbon, synthesis, hydrolytic lignin, formation, adsorption and structural properties
The article presents the results of approximating of ion current signal of the most appropriate parametrical models in Matlab software. It is shown that in spite of the high accuracy of approximation, parametrical model Gaussian, which chosen early in Matlab, have significant drawbacks. In order to eliminate the identified deficiencies authors was developed parametric model in which the discrete Fourier transform was used to approximate of the ion current signal.
Keywords: ion current, the internal combustion engine, a parametric model, a discrete Fourier transform, the Gaussian model, the approximation of a signal