Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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163 kb

APPLICATION OF EMF SHF IN PROCESSING TECHNOLOGIES FOR VEGETABLE MATERIAL AND SECONDARY RESOURCES

abstract 1181604087 issue 118 pp. 1350 – 1362 29.04.2016 ru 1046
The article analyzes the proprietary methods of processing of vegetable raw materials and secondary resources with the use of electromagnetic fields (EMF SHF). Analysis of the database of Rospatent World Intellectual Property Organization led to the conclusion that EMF SHF used in the processing of vegetable raw materials in the following processes: drying, reduction of microbial contamination (decontamination), juice production and extraction. It is established that the application of EMF SHF is the most effective in preparation for drying a plant raw material and not directly at the stage of drying, thus reducing the loss of heat-labile active compound in the drying process, and therefore obtain a finished product of higher quality and nutritional value. The patented methods of extraction of vegetable raw materials extraction process performed that extracting directly EMF SHF does not allow pre-hold inactivate enzymes contained in the raw material and lead to undesirable oxidative and hydrolytic processes, and hence a decrease in the yield of extractable substances in the extract and the deterioration of its quality . Therefore, as in the case of drying plant material, EMF SHF can be more effectively used in preparation for an extraction process. Based on the analysis, it was concluded that the relevance of developments in the field of technologies of processing of vegetable raw materials and secondary resources using EMF SHF at the stage of their preparation for such basic processes - drying, extraction, etc.
160 kb

MODERN WAYS OF INULIN PRODUCTION FROM PLANT MATERIALS

abstract 1181604088 issue 118 pp. 1363 – 1376 29.04.2016 ru 761
The article presents the results of the patent research in the field of modern production technologies of Inulin from plant material. It has been established that the differences of the currently known methods of production of inulin are concluded in selecting raw materials pretreatment inulin-containing modes type extractant and extraction methods, methods of purification inulincontaining extract and methods for producing the final product. A significant amount of Inulin production methods is based on use of freshly feedstock. A number of methods have been patented involving the extraction Inulin from plant raw materials previously stabilized by drying. In most of the methods, inulin extraction is carried out at elevated temperatures with water or aqueous salt solutions. Several technologies involve extraction with organic solvents at low temperatures. Have been patented several processes in which the extraction is replaced by a separation process using inulincontaining juice and physical and mechanical methods. Some of the known processes provide for the extraction process to further operations, such as blanching vegetable raw materials, sonication, vibration impact, processing enzymes. The most promising direction to improve manufacturing technology of inulin from fresh plant raw materials is to conduct research on the use of electromagnetic fields at microwave frequencies, the inactivating effects of which on enzyme systems is an established fact that, in turn, would eliminate the use of chemical agents for inactivation of oxidative enzymes. In addition, considering that more effective are the methods for the preparation of inulin from freshly harvested plant material, are relevant researches on development of innovative technologies to prepare it for storage and its storage, which will provide inhibition of unwanted biochemical and microbiological processes that occur during storage and lead to a loss of inulin
556 kb

MULTIPLE FACTOR ANALYSIS OF DYNAMIC FRICTION COEFFICIENT OF FRICTION UNITS IN TRIBOSYSTEM AND TRIBOUNITS UNDER LABORATORY CONDITIONS

abstract 1181604091 issue 118 pp. 1396 – 1412 29.04.2016 ru 580
We have illustrated multiple factor analysis of the dynamic friction coefficient of the friction units in tribosystem and tribounits under laboratory conditions. As the tribosystem we had a model band-block brake with regime parameters of the control handle tension of the brake and brake work. By using the method of the mathematical planning of the extreme experiments, we have obtained functional dependence of the dynamic friction coefficient of the variable parameters in the form of a second-order polynomial, which adequately describe the processes under study. As tribounit at the micro- and nanoscale there was the reference change of the dynamic friction coefficient of the pair "Retinax FC-24A – Steel 35HNL" as a function of surface temperature, the values of which correspond to certain laws, based on the rise and fall of the characteristics of the dynamic friction coefficient. We have made the evaluation of the dynamic friction coefficient on the principle of the superposition with the multiple factor analysis of the following parameters: the process of forced cooling and heating; the processes of the polarization and depolarization in the contact patch of the micropoints of friction pairs; the type of the contacts of the micropoints depending on the work function of the electrons and ions from materials; the formation of primary and secondary structures on the surfaces of frictional contact; the destruction and restoration of the pellicles on surfaces, etc. We have analyzed the results of the studies of changes of the dynamic friction coefficient on the macro-, micro- and nanoscale and we have found the basic factors affecting its value
546 kb

ANALYSIS OF CIRCULAR INSTRUMENTS WITH FOUR IN-LINE ARRANGEMENT OF THE SPHERICAL DISKS

abstract 1181604092 issue 118 pp. 1413 – 1427 29.04.2016 ru 628
The main direction of reducing the cost of soil treatment based on resource-saving technologies is the transition to surface treatment of soil with disk tools. Double-row and four-row disc tools are manufactured. Four-row tools significantly increase tillage intensity. In the disk tools, the spherical disc is fixed on the individual pole. Disc headers are equipped with a rigid adjustment fixing the standalone pole to the frame. Recommended operating speed is up to 12 km/h. The advantage of a disc header over the disc harrow is as follows: winding plant residues on the axis are excluded. Disc mulchers are equipped with a spiral bar on which a spherical disk is mounted. The presence of the elastic element allows the working unit to do lowfrequency oscillations during movement. The result of processing is the formation of mulch in the layer of soil, which is a mixture of plant residues and soil particles with a diameter of up to 25 mm. To assess the effectiveness of the disc mulcher and the disc header a unit is composed. The initial data for calculation are as follows: tractor HTZ-150K, the resistivity of the soil is 6 kN/m, disk tool working width is 4 m, operating speed of the disc header is 12 km/h, operating speed of the disc mulcher is 15 km/h. Technical and economic performance of these units is defined during disking the soil. The choice of energy-saving operating regime was made in a well-known manner. Theoretical value of slippage of the leading tractor with disk mulcher was 6%, against 9% with the disc header. Working speed of the mulcher made up 14.07 km/h against 10,89 of the disc header. The performance of the unit with the mulcher made up 16.21 hectares, disc harrow performance is 12,54 ha. Fuel mass flow of mulcher decreased by 29% and made 9.68 kg/ha. Using mulcher for surface treatment of the soil allows to reduce the tillage energy costs thanks to resource-conserving technologies
1176 kb

THE STUDY OF SELF-BALANCED POTATO SORTING MACHINE WITH LINEAR INDUCTION DRIVE

abstract 1181604093 issue 118 pp. 1428 – 1440 29.04.2016 ru 710
In the article we have considered the self-balanced potato sorting machine differing from existing designs of self-balanced potato sorting machines with an oscillatory electric drive. That drive uses a linear induction motor. As the counterbalancing device, the method of the duplicating mechanism is applied. The duplicating mechanism is a specular reflection of the main working body, and also participates in technological process. Its application in the drive of machine allows not only to increase efficiency of cleaning, drying and sorting of potatoes, but also to increase reliability of sorting installation that corresponds to the newest tendencies of development of technology. We have brought the mathematical model of the offered electric drive of potato sorting machine, which is implemented in the environment of object and visual modeling of Matlab |Simulink|. The mathematical model allows investigating influence of parameters of the linear induction electric drive on parameters of oscillatory process of working body in dynamics. The developed technique of research and the created experimental potato sorting machine with the linear induction drive have confirmed theoretical researches. The main kinematic sizes of machine and technical parameters of individual nodes are determined. It is shown, that the efficiency of inertial transportation can be increased for 20% in comparison with the classical drive from the motor of rotation. Results of research will allow to realize energetically and technologically effective potato sorting machines with the linear induction drive
1613 kb

MODULATED STATOR WINDINGS OF THE MOTOR FOR FAN DRIVES

abstract 1181604094 issue 118 pp. 1441 – 1458 29.04.2016 ru 675
In poultry industry, animal breeding, greenhouses and vegetable stores a significant amount of fans with asynchronous motors is used to create a microclimate. The fan speed of the fan should be regulated in order to improve the efficiency, so the multispeed motors are used for the fan drives. Line produced two-speed motors with a proportion of the poles number 1:2 have a polar-switched Dahlander stator winding. Two-speed motors with a proportion of the poles number 3:2 and 4:3 have only one stator winding which is poleswitched by the method of amplitude phase shift keying. A drawback of the windings is that they have different energy indicators at different spin rates. In order to create rational diagrams with switching according to the number of poles, which is multiple of three, it is proposed to implement a polyphase MMF modulation of the three-phase winding. As a result of the study, there were procured the stator windings at 4 and 6 poles, which enabled to change the spin speed of the motor in the fan drives without breaking the drive power circuit by the scheme Δ / ΥΥ
3253 kb

SPECIES IDENTIFICATION OF BEETLES (COLEOPTERA, CARABIDAE) BY USING ASKANALYSIS FOR THEIR IMAGES ON EXTERNAL CONTOURS (GENERALIZATION, ABSTRACTION, CLASSIFICATION AND IDENTIFICATION)

abstract 1191605001 issue 119 pp. 1 – 30 31.05.2016 ru 458
Insects are a major component of natural biocenoses and agrocenoses. One of the largest and most numerous families are ground beetles (Carabidae); their number, according to various estimates, is more than 30,000 species. For Carabidae beetles it is common to have different ways of eating, a place of habitation, occupied layers, seasonal and daily activity. They live both on the surface and in the soil, more rarely on bushes and trees. The types of the family of ground beetles – active beetles with long, thin antennae of uniform thickness, long elytra and long legs, adapted to running. Their sizes vary from a few millimeters to 10 cm. As active predators, ground beetles play a huge practical importance, destroying pests before reaching the last threshold, thereby providing a natural regulation. Based on the fact, that the number of beetles is large, and their sizes are sometimes only a few millimeters, there is a problem of determining the species of these insects (or their identification), therefore it took a special tool, which, on the one hand, facilitate obtaining data about these insects, and on the other hand, would increase their accuracy. This article proposes a new (to this subject area) approach to identify different species of ground beetles along their outer contour with the use of software tools for automated system-cognitive analysis (ASC-analysis) – the universal cognitive analytical system called "Eidos," which is well-proven in the study of other objects. The reason why it was decided to use this system is that normal (standard) identification of ground beetles, have certain disadvantages: the human factor (manifest error in the determination); quite time consuming; the inability to increase the number of criteria to improve the reliability of the model comparison. This article aims to overcome these drawbacks, by the use of universal cognitive analytical system "Eidos", the automated system-cognitive analysis (ASC-analysis). A numerical example is given
538 kb

COMPOSITION OF SPATIAL FORMS OF FUR GARMENTS

abstract 1191605002 issue 119 pp. 31 – 43 31.05.2016 ru 604
The article presents the fact that the composition of fur models has significant importance for the customers, surpassing even the importance of quality and comfort clothing for the consumers. It systematizes features of the compositional solutions of fur garments, determining the integrity of the image and the artistic unity of structure components. It describes methods of combining different types of fur and various textile materials in one product, as well as types of decorative finishes. It shows the influence of different height of hair, color and texture of fur on visual and tactile perception of spatial forms and appearance of fur. The subordination of the constituent parts of form, rhythm of expressive elements and the presence of asymmetry details give a dynamic composition solution of fur garments. To improve the aesthetic properties and enhance consumer value, a composition of fur garment should be holistic, proportionate, harmonious in color and texture of the fur, of decorative trim, with the rhythmic arrangement of parts. The composition of the external forms of fur clothing takes into account visual and tactile features of fur, a variety of design cut, ensures the artistic expression of clothing
360 kb

A NEW MATHEMATICAL MODEL FOR OPTIMIZING FRACTURE LENGTH IN THE IRANIAN OIL SAND RESERVOIR

abstract 1191605009 issue 119 pp. 147 – 158 31.05.2016 ru 565
Creation of hydraulic fracturing in the physical structure of the reservoir rock is one important way to improve the productivity of oil and gas wells. These artificial channels increase ability of the reservoir rock for conducting hydrocarbons to the wellbore. In this study a new approach has been proposed for optimization of fracture half length in hydraulic fracturing operation. Also, this new method that is a combination of various fracturing geometry models has been proposed for modeling the hydraulic fracturing geometry. We have shown that there is a reasonable agreement between the result of pseudo 3D fracture geometry model and the predicted results from the proposed approach
236 kb

SUBSTANTIATION OF DEVELOPING MEAT PRODUCTS FOR PEOPLE WHO ARE IN THE CONDITIONS OF UNFAVORABLE ECOLOGICAL SITUATION

abstract 1191605016 issue 119 pp. 238 – 253 31.05.2016 ru 485
Nowadays there is a deficit of irreplaceable and physiologically necessary nutrients in everyday ration to a large extent connected with unfavorable environmental conditions and the increase of morbidity of humans of all ages cause the cute necessity in the creation of functional food that is products with additional functions which are healthy nutritive and physiological characteristics. One of the main demands under their creation is in the positive influence of introduced products on the food value of products because they must be enriched with ingredients which have antioxidant properties. Therefore, nowadays the introduction of functional meat-plant products will promote the effective improvement in the direction of prophylaxis of different diseases. In Russia, the concept of healthy nutrition became a part of state politics. The aim of this politics is the conservation and consolidation of population’s health and the prophylaxis of diseases. In this work, there was considered the technology of the production of meat-plant tinned food of functional purpose enriched with nutrients and intended for preventive human nutrition, for those who are in the conditions of harmful influence of environment and professional activity. There were described the advantages of the given developing, there were recommended the introduced into the product components of functional purpose
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