05.00.00 Technical science
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Description
Artificial intelligence system “Aids-Astra” for scientific research of global geo-systems depending on astronomical parameters of Solar system celestial bodies is discussed
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TURBULENT TRANSFER EFFECTS OF THE FINE PARTICLES IN THE LIQUID PHASE OF DYNAMIC SEPARATORS
DescriptionThe turbulent movement of the liquid with dispersed phase in the channels of thin layer clarifiers and hydrocyclones is reviewed. The evaluation of the dimensions of the particles, which are taken by the turbulent pulsation is performed. The turbulent sedimentation of the fine phase is researched as a type of a process of diffusion. Using the equations from the theory of mass transfer and the edge of the turbulent level, the coefficients of the speed of the transfer of the particles are acquired. The results of the calculations, covering the effectiveness of the turbulent separation are provided, with the use of the models of perfect mixing and displacement
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EFFICIENCY OF USING OF THROTTLING ELEMENTS AT THE PUMP PLANTS
DescriptionIn the article, we have examined the operation modes of the pump units when their efficiency is regulated by the force of throttling. Formulas for optimal operation mode are derived and zones for efficient work of the electric pumps with different initial parameters of reg-ulations are defined
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EFFECTIVE METHOD OF WOOD HISTOLOGICAL STRUCTURE DEFINITION
DescriptionIn the article, the review of method of histological structure definition of different wood types is given. The particularity of softwood, hardwood diffuse-porous and ring-porous structure is discussed
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Description
The article focuses on current issue of improving the reliability of water intake buildings in the Far North. We have given special operating conditions of these structures, particularly ice drift, shore ice piles, windrowing ice fields and erosion of the bottom of the moving ice field with keel protrusion. We have described physiographic, structural and morphological conditions of the construction site, generalized information on the parameters ice drift during an ice moving in the waters of the Gulf of Ob in Salmanovskaye deposit area. For these conditions, we have accepted to make water intake structure with recessed filtering part and given idea about their ice protection and proposed an effective design of protective constructions for all possible effects of ice hummocks. We have also given a description of bases of technology of construction works the rationale for the design parameters of facilities. In view of the possible load, two rows of closed pile foundations are provided for the protection of water receivers consisting of bored piles and channel filtering grillage. In the first row, near to the water receivers we have provided metallic, lattice constructions from metal profile pipes laid on the top of water receivers on the grillage. The second row of protective structures around water receivers was designed as a halfly indepth monolithic reinforced concrete grillage of rectangular cross-section form with an ice pick from a metal corner rental rendered monolithic on the outside perimeter of the grillage. Concrete grating are designed also to protect the gravity pipelines along the borders. Rectangular grillages interconnected with cross bar bonds witch are also made of reinforced concrete. The proposed technical solutions provide reliable protection against possible water intake facilities including dynamic effects from windrowing ice fields in the Far North. Options include new constructions of underground horizontal and channel filter water intake structures that could be effectively used in such conditions
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EFFECTIVE DESIGN AND TECHNOLOGY SOLUTIONS TO COMBAT LANDSLIDES IN THE SOUTH OF RUSSIA
DescriptionThe article is devoted to the development of effective technical solutions for the design and construction of landslide protection works on the South of Russia, based on materials of scientific-research works. In this work we perform a scientific analysis of the efficiency of use of natural biopositive materials and products made of them for construction against landslide of the combined and biopositive constructions. The description of the technological processes of manufacture of flexible and gabion mattresses used for the installation of the main fixtures was presented. The results of the researches of technologies of construction of the main anchorages of anti-landslide facilities we given. Advanced technical solutions on construction of anchor devices in radical soil above horizontal fastening were received. We have made a justification of the efficiency of bio-positive technologies in the construction of facilities to protect against landslides. The article gives new constructive and technological decisions on construction of landslide protection works that are protected by patents and positive decisions on inventions and useful models. The technological conditions for the construction of buildings against landslide processes were shown
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EFFICIENCY OF THE HARVESTERS TECHNICAL STATE MANAGEMENT WITH THE USE OF EXPERT SYSTEMS
DescriptionManagement of the technical state of machines considered in three aspects: intellectual, information and physical. The need to reduce the load on the operator in the intellectual and information aspects. A description of the expert system for diagnosis of combine harvesters. Presented data of experimental researches of efficiency of expert systems for the management of the technical state of the harvesters "Don"
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Description
Reasonable new design for reduction noise for saw disks of woodworking machines, in which gaskets with the dry friction, placed under clamping flange are used, is shown. Experimentally received results, characterizing dissipative and acoustic properties of this design
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EFFECT OF ELECTROMAGNETIC FIELD LOW FREQUENCIES IN THE TECHNOLOGY OF DRYING MANGOES AND PAPAYAS
DescriptionThe intensity of drying process depends on the speed of movement of the moisture inside the object and the speed of its removal from the surface. To accelerate the drying process, temperature gradient is often regulated, which causes large power consumption. Currently, they are different methods in used for intensifying the process of drying of plant material which are physical, mechanical, chemical and electrical method. Data of literature review show a lack of data on the impact of synergies of lower frequency on the efficiency of drying plant material. Accelerating the drying process of fruit can be achieved by combining low – temperature of drying with a synergistic lower frequency of electromagnetic field. The results of the studies on the development of technologies to accelerate the drying process of mango and papaya fruit are presented in this article. The role of the electromagnetic field, on the intensification of the drying process and on the inhibition of the microflora of mango and papaya, during drying is studied. Effect of the synergistic electromagnetic fields of different frequencies leading to the death of microorganisms, as well as the drying rate of mango and papaya fruit is analyzed. The optimal technological parameters of low frequency electromagnetic field on drying of mango and papaya fruit are determined. Biochemical changes of mango and papaya fruit during drying are given. Technological parameters of the powder mango and papaya obtained by combining low temperature treatment with the synergy of low frequencies are described
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EFFECT OF A PRODUCTION ARM IN THE CONDITIONS OF A SMALL REPAIR COMPANY
DescriptionThe article found that the targeted management of parameters affecting the production arm can influence the value of the break-even point and increase the potential for the formation of the gross profits of small repair shops