05.00.00 Technical science
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Description
In the article we have submitted physical fundamentals of processing machinery and equipment repair and recovery formulations; above all, the physical picture of the process of friction on the example of a pair of steel – iron is given
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MECHANICAL ACTIVATION PROCESSING OF A FILLER FOR FINE-GRAINED CONCRETE QUALITY IMPROVEMENT
DescriptionThe results of research of influence of mechanical activation of filler (river sand) on physical, mechanical and structural properties of fine-grained concrete are presented in the article. The prospects of using mechanical activation technologies for production of concrete with the improved complex of technical characteristics are established
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RESEARCH OF ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE DISTRIBUTION IN POLYMERELASTOMER COMPOSITE
DescriptionThe research of distribution of polyethylene in production of composites on a basis of butadiene - nitrile rubber and ultra high molecular weight polyethylene is presented in this work. The raised content of polyethylene on the surfaces of samples and products that causes surface effect of modifying and improvement of agressiveproof property and wears resistance is established
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CHANGE OF INULIN IN THE TUBERS OF JERUSALEM ARTICHOKE AT STORAGE
DescriptionThis article examines the change of the mass fraction of inulin in Jerusalem artichoke tubers during storage under different conditions. The influence of temperature, storage time and variety features on the content of inulin have been shown. The terms and conditions of storage of raw materials before processing have been set.
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WAYS OF STERILIZATION OF PRODUCTS OF PLANT GROWING AND FEEDING MIXTURES
DescriptionThe article is devoted to justification of application of an electroozonizer for sterilization of vegetable substrata and fodder grain in the course of biotechnological production
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USING DISCRETE WAVELET TRANSFORM FOR CALCULATION OF TRANSIENT REGIMES OF POWER SUPPLY SYSTEMS
DescriptionThis article utilizes wavelet analysis, a relatively new mathematical tool, designed to develop an algorithm of analysis for electrical transients in electric power systems. Techniques, which are currently used, fall into two main categories: time domain or the integral transform domain. Both of the aforementioned categories can be stressed when solving equations with a wide spectrum or when a system of equations is subjected to a nonstationary forcing function. One of the benefits of wavelet analysis, however, is the ability to resolve nonstationary nature signals easily. Based on the discrete time domain approximation, the system components such as resistor and inductor are modeled in discrete wavelet domain for purpose of transient analysis. The method can be implemented by any kind of orthogonal wavelet transform. Computer simulations verified the effectiveness of the proposed method. The proposed algorithm can be implemented to calculate the shortcircuits in electric power systems
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TECHNICAL LEVEL OF PETROVSKO-ANASTASIEVKAYA RICE IRRIGATION SYSTEM AND WATER USE EFFICIENCY
DescriptionThe operating conditions of Petrovsky-Anastasievkaya irrigation system are considered. The system efficiency, the influence of operating and reclamation conditions on rice yield has bees analyzed. The priority types and amount of work on the improvement of operating conditions have been defined
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Description
On the basis of a field experimental research, the efficiency of a bush cutter with vegetation supporting device is studied, at processing of sites with vegetation of various tree species and a various average thickness
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COMPREHENSIVE RING SYSTEM OF PROGRAM PROTECTION AGAINST USING BY ILLEGAL USERS
DescriptionThis article shows the algorithm of the realization of multilevel system of program protection against using by illegal users. The proposed system consists of 4 protection levels
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IMPROVING THE RAFT DESIGN FOR THE ALLOY OF TIMBER DOWN THE RIVERS WITH SMALL DEPTHS
DescriptionWe describe the construction of the raft, formed of flat raft sections; it is shown, that the given raft has deeper draft, which increases during the voyage. The construc-tion of the raft, formed from flat raft sections of stabi-lized buoyancy is presented. The proposed raft has less draft, the intensity of increase of which is not signifi-cant when navigating; it allows it to go through the sec-tions of rivers with smaller depths. A description of raft formation is given