Scientific Journal of KubSAU

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

ESTIMATION OF CONSUMER PROPERTIES OF DELICACY FROM RABBIT MEAT

abstract 1321708018 issue 132 pp. 231 – 238 31.10.2017 ru 274
One of perspective variants of development of the meat industry can become the production of foodstuffs from untraditional kinds of the meat raw materials such as the rabbit meat, which has a high protein content with a full number of essential amino acids, broad spectra of the mineral substances and vitamins and reduced fat content. Therefore, a demand on the rabbit meat has been increased significantly in the past years. Rabbit meat is widely used in various culinary dishes of the dietary nutrition. Rabbit meat is used in limited scales for production of sausages. The production of the delicacy sterling foodstuffs from the rabbit meat, that are capable for long-term storage, is almost not developed. The regulated requirements for quality of rolls that are included in Technical Conditions are set up in accordance with the developed recipe and technology of production of the smoked-boiled rolls from the rabbit meat. All the foodstuff samples gained high scores on the organoleptic estimation. The foodstuffs satisfy the requirements for chemical composition: mass fraction of protein – no less than 20%, mass fraction of fat – no more than 25%, mass fraction of moisture – no more than 65%. The developed delicacy foodstuffs have a high nutritional and biological value
885 kb

USING CONVOLUTIONAL NEURAL NETWORKS FOR LICENSE PLATES RECOGNITION. ADVANTAGES AND DISADVANTAGES IN COMPARISON WITH TEMPLATE-BASED METHOD

abstract 1201606112 issue 120 pp. 1706 – 1715 30.06.2016 ru 277
Car license plates recognition problem is one of the typical tasks of computer vision. Video surveillance software usually provides license plates recognition function. Meanwhile, there are many approaches to solve this problem, where template-based methods are the most common. Such methods providing predictable and short enough execution time, and little percent of mistakes. However, such methods are far less effective in case there is a need to recognize car’s license plate, which may be located in unpredictable place, typed in undefined font and on non-standard background, or without strict formatting. For example, USA car license plates. One of the methods to increase effectiveness and quality of such license plates recognition is to use neural networks. It is assumed, that neural networks usage can significantly increase recognition quality. Nevertheless, neural networks usage entails difficulties of it’s training, and often becomes less efficient as template-based methods usage. This article discusses probability of usage of convolutional neural network, which was trained using MNIST (Mixed National Institute of Standards and Technology) database. This article is a review of usage of templates and neural networks for car’s license plate recognition in terms of quality, performance and complexity of the usage
191 kb

DEVELOPING AN EXPERT INFORMATION SYSTEM FOR SOCIAL PROTECTION

abstract 1291705043 issue 129 pp. 498 – 507 31.05.2017 ru 279
The article presents a study of types of expert systems (ES) and methods of their construction. We have developed principles of functioning and the architecture of dynamic ES for social protection that can modify its behavior depending on the changes in the subject area and in specified scripts of functioning
180 kb

DEVELOPMENT AND CALCULATION OF STRUCTURES OF A HEAT EXCHANGER

abstract 1241610087 issue 124 pp. 1342 – 1352 30.12.2016 ru 280
There are the results of the research on creating a heat exchanger. It is based on the experience of creating equipment for swirling of liquid and gas flows and changing of their directions, their whirling, leading to destruction of the boundary layer on heat-transfer surfaces and intensification of heat-exchange processes. Screw rotors are suggested as working bodies of the heat exchanger. Each flow-cross section in them differs from the previous not only by its form but also by its location relative to each other. With that, the cross-section area changes, the medium motion stationary breaks, the intensity of heatexchange processes increases, technological capabilities enhance. Screw rotors are supplied with laps created on exterior surfaces of rotors during their assembling and allowing intensification of heatexchange processes. Dependencies for calculating of screw rotors basic characteristics are presented in the work. Screw rotors provided with helical grooves on the inner surface with a spiral lines on the outer surface of different pitch and number of visits. The work is done on the basis of research carried out at the Kuban state agrarian University on the use of helical rotors in industry, construction and agriculture [1-23]
130 kb

FEATURES OF MODELING OF TECHNOLOGICAL OPERATIONS OF AGRICULTURAL RAW MATERIALS PROCESSING

abstract 1311707126 issue 131 pp. 1536 – 1543 29.09.2017 ru 280
The ways of improving the work of food enterprises during processing of agricultural raw materials on the basis of a system analysis of the durations of technological operations are considered. The basic mathematical models of technological processes have been analyzed and the possibility of using unified technological operations to predict the time of completion of work has been shown for processing various pairs of raw materials. It is established that the construction of mathematical models of technological processes of processing of agricultural raw materials should be based on using the potential of transfer of the target component between isopotential surfaces. This allows not only to unify the created models of technological processes, but also to significantly increase their extrapolating ability to estimate the durations of technological operations
544 kb

MATHEMATICAL MODELING OF SPECIAL ELECTRIC DRIVES FOR THE EQUIPMENT OF OIL AND GAS BRANCH

abstract 1321708072 issue 132 pp. 926 – 940 31.10.2017 ru 280
Creation of new types of special electric actuators for the oil and gas industry implies development of new approaches to simulation, design of the considered types of electric actuators. In addition, it requires development of new algorithms for creation of a complex of application programs of computer-aided design of special electric actuators. As process of simulation is quite labor consuming, it is offered to realize it gradually. In this article, the question of mathematical simulation of special electric actuators for the equipment of oil and gas branch using methods of electromagnetic conversion of energy is considered. Results of mathematical simulation were realized in the form of the program products, which are a part of system of computer-aided design
262 kb

ANALYSIS OF THE DYNAMIC RANGE OF MICROWAVE AMPLIFIERS ON RESONANCE-TUNNEL DIODES CONSIDERING AUTOMOTIVE REPLACEMENT

abstract 1331709053 issue 133 pp. 709 – 717 30.11.2017 ru 280
The influence of auto-displacement in a resonancetunnel diode (RTD) on the dynamic range of amplifiers on these diodes is considered in the article. The amplification at resonance frequency is considered and the influence of higher harmonics is not taken into account, since they do not create a significant voltage drop at the nonlinear resistance of the diode. It is assumed that the gain will be sufficiently large, and then the nature of the dependence of the gain factors on the degree of regeneration will be the same for amplifiers "per pass" and "reflection". This allows us to consider the problem for both types of amplifiers on the RTD. The types of amplitude characteristics , which are possible for the RTD amplifier, are considered. The dependences of the parameter determining the dynamic range of the amplifier on the position of the operating point for several values of the product of the resistance on the direct current of the supply circuit are calculated for the value of the modulus of the maximum negative conductivity of the tunnel gap RG max. For each value of RG max for given parameters, you can determine the position of the operating point, which provides the specified amplifier mode. Dependences of the value of the dynamic range are constructed with allowance for auto-displacement and in the absence of auto-displacement for two values of the degree of regeneration. Taking into account autosplacement, two possible types of amplitude characteristics and boundaries of their existence were revealed. For these two types of amplitude characteristics, expressions were obtained that determine the dynamic range of the amplifier
166 kb

IMPROVEMENT OF A MULTILEVEL SYSTEM OF TRANSPORT LINKS OF FOREST ENTERPRISES AT THE REGIONAL LEVEL

abstract 1341710040 issue 134 pp. 491 – 503 29.12.2017 ru 280
This article considers the structure of the regional transport system of the forest complex, in which each mode of transport is characterized by a certain structure, technology of functioning and means. To describe the relationship between the parameters that determine the activity of a particular mode of transport, the production function method is used. Analytical dependence expressing the formal relationship between the parameters of various modes of transport is presented, the objective function of the organizational structure of the regional transport system management is presented, reflecting the efficiency of the entire transport system as a whole. The formulation of the problem is considered from the standpoint of game theory, in which there are four players with disparate interests: the organizational structure of the regional transport system and the three transport subsystems, each of the participants has its own control vector that belongs to the given set. We consider the case of full awareness, in which the hierarchical structure and all the objective functions of the system are known to the participants. The resulting statement of the problem is modeled by the game of four persons with conflicting interests. The game is viewed from the perspective of transport subsystems. To describe the relationship between the parameters that determine the activity of a particular mode of transport, the production function method is used. An algorithm for solving the problem is given
176 kb

STUDYING LIGHT TRANSMITTING PROPERTIES OF CELLULAR POLYCARBONATE - A YEAR-ROUND COATING MATERIAL OF GREENHOUSES

abstract 1201606014 issue 120 pp. 239 – 252 30.06.2016 ru 281
Today, the Russian agriculture is facing food market saturation task by domestic quality products in sufficient quantities for the needs of the population. At the same time healthy nutriment is provided, according to doctors and scientists, by vegetables, which must be present in the diet of a healthy person. In this regard, a big role is assigned to the covered ground crop production, normal functioning of which allows to supply shops and markets with vegetables throughout the year. For the formation of the necessary environment inside the greenhouse promoting normal plants growth, the main role is played by the solar radiation penetrating into the greenhouse through the transparent enclosure and creating necessary light and temperature and humidity regime. Comparison and analysis of the main cover and light-transmitting materials (film, glass, polycarbonate) characteristics revealed polycarbonate to be the basic material today, light transmitting characteristics study of which this article deals with. As a research method, molecular optical spectroscopy was applied. In order to study there has been selected waveband with their length value from the 610 to 700 nm, which spans exactly the shortwave part of the solar radiation spectrum, which is necessary for the proper implementation of the plants photosynthesis in artificial rearing conditions. After analyzing the measurements results it can be said that studied "KARBOGLASS AGRO" polycarbonate samples, despite the substantially greater thickness in comparison with for example plastic film that is widely used in the old fashioned way, are characterized by higher value of light-transmitting ability for light wavelength values passing through the material - respectively of 79-80,4% and 75,4-77%. Light transmission of "KARBOGLASS AGRO" cellular polycarbonate is at 5 ± 1% higher than of other traditional materials. Among the studied coating materials for covered ground facilities and due to the research results of their light-transmitting capacity, today cellular polycarbonate is of undoubted advantage
418 kb

OPTIMIZATION OF THE PARAMETERS OF WORKING PARTS FOR THE PREPARATION OF TOBACCO LEAVES TO DRYING

abstract 1311707034 issue 131 pp. 415 – 421 29.09.2017 ru 284
In the article there are results of theoretical and experimental researches on creating a working part for leafsplitting and orientation of tobacco leaves when preparing for their drying
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