05.00.00 Technical science
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Description
PE2NT11 and chopped carbon fibers and PE2NT11 and modified carbon fibers composites were investigated. It was shown that the mechanical properties depend on the surface characteristics of fibers. It was found that laboratory and tube samples have some difference in mechanical properties that connected with specific distribution of fibers in samples
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RESEARCH OF SERVICE DATA TRANSFER USING PATTERNS
DescriptionIn the article, we present the results of stress testing of service data using templates
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THE RESEARCH OF SERVICE DATA TRANSFER USING PATTERNS
DescriptionThe article presents the results of stress testing of the service data transfer using templates
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Description
In this article, we present the results of the research of influence of polysaccharides and prebiotics on physical, chemical, rheological, microbiological and organoleptic indicators of a sour-milk product on the basis of ferment starting cultures of Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus. The optimum dose of polysaccharides and prebiotics adding into a sour-milk product is proved
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STUDY OF SORPTION PROPERTIES OF FILTER MATERIALS
DescriptionPresent article is devoted to research of sorption properties of various filtering materials. The various types of filters, such as fabric, frame, granular filters are considered. The principles of work of each type of filters, feature and difference them from each other are considered. The conditions of their application are investigated. Process of filtering through a layer of granular loading also is described. The physicochemical parameters of some granular materials including sand, hydroanthracite-Р, granite road metal, volcanic tuffs, and expanded vermiculite are given. The comparison of oil capacity of some materials is considered at their use as a filtering material and oil collectors. We have described sorption features of activated carbon, used as a filtering material for clearing waters of petroleum and petroleum. The article has a conclusion about their prospects and the efficiency of application when fighting with petroleum pollutions
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RESEARCH OF METHODS MODIFICATION PROPERTIES OF POLYSACCHARIDE SORBENTS
DescriptionThe methods of changing properties of the sorbents on the basis of wastes which take a place after processing vegetal raw materials were investigated. The information about hydrophobic liquid uptake by the modified polysaccharide sorbents on the basis of corncobs was found
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Description
The article gives results of research of the process of abrasive wear of samples made of Steel 45, U10 and with applied composite surface layer "nickelmulticomponent material with shape memory effect (SME) based on TiNi". For the tests we have chosen TiNiZr, which is in the martensite state and TiNiHfCu, which is in the austenitic state at the test temperature. The formation of the surface layer was carried out by high-speed gas-flame deposition in a protective atmosphere of argon. In the wear test, Al2O3 corundum powder was used as an abrasive. It is shown that the wear rate of samples with a composite surface layer of multicomponent materials with an SME is significantly reduced in comparison with the base, which is explained by reversible phase transformations of the surface layer with an SME. After carrying out the additional surface plastic deformation operation (SPD), the resistance of the laminated composition to abrasion wear is greatly enhanced, due to the reinforcing effect of the SPD. It is recommended for products working in conditions of abrasive wear and high temperatures to use the complex technology of formation of the surface composition "steel-nickel-material with high-temperature EPF", including preparation of the surface of the substrate and the deposited material, VGN in the protective atmosphere of argon, followed by SPD
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INVESTIGATION OF THE STRUCTURE OF ADHESIVE JOINTS WITH A MICROTOMOGRAPHY METHOD
DescriptionThe article provides a comparative analysis of two methods for assessing the structure of adhesive joint: optical microscopy and microtomography. Comparative analysis of the accuracy of measurement was shown; we have also built the graphs of the thickness of adhesive joint. The depth of penetration adhesive into the wood was determined. The structure of adhesive joint for two types of binders was studied
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Description
In this article we present the analysis of all the theoretic approaches for modernization and maintenance of historical centers of the cities by the design sources in the point of view of systemic approach to the investigation of the problems. It is revealed that in the concerning area there is a wide experience of investigations and also a big number of various attempts of creation and development of methodological apparatus, which determines the strategy of application of the design products to urban environment in general and to historical environment in particular. However, the complex of scientifically-based solution of the problems in indicated sphere has not developed yet, and as a consequence, the common strategy of maintenance and modernization of historical centers by the design sources are not determined yet. These results of carried out investigations can become a basis for the development of systemic approach for conflict-free penetration into natural historically formed context of the design objects and the saturation of the existing environment
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ANALYSIS OF FEASIBILITY, THERMAL AND AERODYNAMIC PARAMETERS OF GRILL APPARATUS
DescriptionThe article reviews the results of the analysis of technical and operational characteristics of domestic and foreign grill apparatus. The most important indicators of the apparatus are discussed