Scientific Journal of KubSAU

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

ANALYSIS OF REGULATORY DOCUMENTS DETERMINING THE REQUIREMENTS FOR RAW MILK MATERIAL IN VARIOUS ECO-NOMIC ZONES

abstract 1541910034 issue 154 pp. 383 – 395 30.12.2019 ru 253
The quality of milk, as well as other livestock products, is regulated by the uniform requirements for this type of product on the basis of existing regulatory acts-standards. The article sets out and analyzes the regulatory and legislative documents in accordance with the standards that determine the quality requirements of milk in the dairy industry of our country. Additionally, the article presents the evolution of the development of regulatory documents on milk quality in the Russian Federation. We have also highlighted main regulatory documents that are presented for milk quality for different economic zones, namely, for: the Russian Federation, the European Economic Union, the Customs Union, and the number of basic indicators of milk quality varies - 3, 5 and 2 indicators, respectively. The information presented sets the requirements for the quality of raw milk in the USA, EU, RF, CU, EEC. Standards help implement organizational, technological, economic and other measures aimed at improving product quality
203 kb

EVALUATION OF THE ECONOMIC EFFECTIVENESS MODEL OF THE MUNICIPAL INSTITUTION OF CULTURE (ON THE EXAMPLE OF MAGADAN CENTER OF CULTURE)

abstract 1331709061 issue 133 pp. 797 – 811 30.11.2017 ru 252
The article examines the degree of economic efficiency of cultural institutions based on the example of the Magadan Municipal Autonomous Institution of Culture "Culture Center" - one of the largest in the city and the region. Current issues are discussed and proposed solutions are highlighted. A five-factor model is used to quantify the effectiveness of the cultural institution's activities, according to the methodology of the Ministry of Culture of the Russian Federation. Several methods for selecting factors in the model are proposed. Applying the model, the coefficient of economic efficiency of the researched cultural object for 2014 - 2016 is calculated and the factors influencing the change of this coefficient are noted. The forecasted estimates of the coefficients of economic efficiency of the Magadan Municipal Autonomous Institution of Culture "Culture Center" for 2017-2019 are calculated taking into account the current trend of a reduction in budgetary financing and a simultaneous increase of income from entrepreneurial and other income-generating activities, as well as a decrease of an economically active population. The article proposes measures to increase the activity, responsibility and effectiveness of budgetary cultural institutions, to expand their independence in the use of various funding channels. This, ultimately, should lead to an expansion of the range of services provided to the population, an improvement in quality and the level of compliance with client requests
966 kb

STUDYING A DISK SOWING DEVICE AND JUSTIFICATION OF ITS PARAMETERS

abstract 1562002005 issue 156 pp. 88 – 97 28.02.2020 ru 252
In recent years, in the conditions of the Tambov region, thanks to the widespread introduction of innovative technologies, the yield of root crops of this culture has significantly increased. The scheme of sowing is the basis of technology of cultivation of any crops depend on the productivity and quality of products, material and monetary and energy costs, density of sowing, supply area and design features used cars. According to academician V. I. Edelstein, the optimal sowing scheme is able to provide an increase in crop yields up to 40%. It was noted that the most optimal scheme of sowing is a tape, with the use of which it is possible to achieve a reasonable compromise between the possibility of rational thickening of plants in order to increase yields and improve the working conditions of agricultural machines. The relevance of the research lies in the modernization of the sowing apparatus of the beet seeder SST-12B, under the belt scheme of sowing with a staggered arrangement of plants in two adjacent lines of the tape and the study of its design parameters. The analysis shows that with an increase in the angle of installation of the scraper over 60 degrees, there is an increase in the percentage of occupancy of the disk cells with seeds in all studied hybrids. Studies have found that the hybrid RMS-120 at the angle of installation of the scraper 70 degrees is 100 percent filling cells with seeds, while hybrids XM-1820 and Troika cells filled only 93.3%. This is due to the fact that the seeds of the domestic hybrid were more aligned in diameter compared to the seeds of foreign firms. It should also be noted that the hybrid RMS-120 with a scraper angle of 70 degrees was marked by the lowest damage dragees-0.67%, while hybrids XM-1820 and Troika values of this indicator were 0.83 and 0.73%, respectively. By increasing the angle of installation of the scraper over 80 degrees, the percentage of damaged seeds increased from 0.4 to 0.66%
469 kb

COMBINATORIAL DIAGNOSIS MODEL OF A POWER OBJECT

abstract 1311707123 issue 131 pp. 1486 – 1496 29.09.2017 ru 251
The present level of development of power systems, the need to increase their resources and increased competition have caused especially true problem of increasing the efficiency of their operation. The work is devoted to the justification of the selection and development of a technique of construction of the diagnostic model to search for failures in power objects
2604 kb

MORPHO-BIOLOGICAL AND ANATOMICAL CHANGES IN THE OVERGROWING WOOD OF THE GALA APPLE TREE DEPENDING ON THE USE OF THE GROWTH REGULATOR

abstract 1541910028 issue 154 pp. 289 – 299 30.12.2019 ru 251
The work is devoted to studying the nature of the effect of various doses of the drug called "Regalis" on the formation of the vegetative and generative organs of apple plants. Years of research - 2016-2019 Field experiments were carried out in JSC company "Agrocomplex" named after N.I. Tkachev in the Vyselkovsky district. Plantations were laid in 2007. Planting pattern 4.0 × 1.0m., garden irrigated, with support. The soil of the site is ordinary carbonated black soil (chernozem), the thickness of the humus layer is up to 120-140 cm. As a result of field and laboratory studies of the condition of 9-12 year old Gala apple trees grafted on P-59 rootstock, it was established that the annual treatment of apple trees for different phenophases with a preparation Regalis at a dose of 1.25 kg / ha has a significant effect on both the size and the number of vegetative and generative formations. It was determined that triple treatment of apple trees with regalis in 43.11% reduces the number of shoots longer than 60 cm, and double - by 31.39%. Structural changes in the distribution of vegetative and fruitful formations per 1 meter were noted in axial branches of the first order. Under the influence of the drug, the number of full-fledged “closed” buds in 2017 increased by 88.8%, and in 2018 by 70.9% compared with the control. The use of triple treatment with Regalis significantly reduces growth activity and has a positive effect on the passage of organogenesis of apple flower buds
213 kb

POWER SOURCES OF OPERATION, CONTROL AND PROTECTION DEVICES

abstract 1321708078 issue 132 pp. 1013 – 1023 31.10.2017 ru 250
Currently operating in autonomous systems of power supply DC voltages power sources are secondary sources for operation devices, protection and control of generators, motors, stabilizers and inverters have relatively low operational performance. The work proposes to improve the weight and the size of power supplies to apply a high frequency link in their designs. We provide structural designs and the peculiarities of operation of secondary power sources with a high frequency link. This article discusses the fundamental electrical circuits of pulse regulators, converters based on resonant inverters and transformers with rotating magnetic field. The use of resonant inverters in power sources will significantly improve their weight and overall dimensions. In addition, the use of secondary sources of supply for transformers with rotating magnetic field will simplify their design and reduce the level of electromagnetic interference generated by semiconductor devices. The features of operation of pulsed regulators and prospective structuralschematics converters discussed in the article, performed on resonant inverters and transformers with rotating magnetic field, will increase the effectiveness of pre-work on the development of secondary power sources with improved operational and technical characteristics for devices of operating, control and protection
196 kb

USE OF MECHANICAL CLEANING AND COLOR SORTING OF SEED GRAIN AND CORN COBS IN MODERN TECHNOLOGIES

abstract 1341710080 issue 134 pp. 984 – 994 29.12.2017 ru 248
Special aspects of grain heap and corn cobs trapping by modern mechanisms and plants with photoelements have been considered, also the main ways of their functional developing are disclosed
2177 kb

PNEUMATIC SLIT SPRAYER PARAMETERS STUDY

abstract 1521908008 issue 152 pp. 54 – 67 31.10.2019 ru 248
As a result of scientific analysis of the effective plant protection by spraying them with protective-stimulating liquids, the most progressive pneumohydraulic processing method was chosen, enabling the use of a wide mode range. The proposed pneumatic sprayer design can be used to equip sprayers, pollinators and combined units to perform basic operations with the use of pesticides and fertilizers. Using liquid crushing through exposure to working fluid flowing from the feeding tubes of sprayers (jets) with a high-speed air jet, it was possible to carry out the spraying process in a low-volume and ultra-small-volume way in a highly dispersive airborne jets. To study the air-borne jet parameters, providing the working fluid spraying quality as a polydisperse system, we have used a probabilistic-statistical analysis method. It studies variation range of signs according to the classes. Theoretically, the air-borne jet forming process by a pneumatic slit sprayer was considered. Using the three-factor central composite rotatable uniform plan (CURUP), the influence of three factors (surge tank position in cm, air pressure MPa and the feeding tube inclination angle in degrees) on the sprayer performance and the surface response on the working fluid median-mass diameter was determined. It was found that the response surfaces have a form of a paraboloid, the extremum of which is observed at an air pressure of 0.15 MPa (the center of the plan) and the tube installation angle in the spray housing equal to 60 degrees with the middle surge tank position. The maximum coating density of the treated object was 95 pieces / cm2 at the same position of the surge tank and air pressure in the pneumatic line of 0.3 MPa. It was proved that ultra-low volume spraying can be carried out in wide ranges of initial data while observing spraying quality requirements according to the drop median-mass diameter, the average coating density and their distribution uniformity
123 kb

BIOLOGICAL FEATURES OF SOME EASTERN ASIAN PLANTS UNDER INTRODUCTION IN THE SOUTH OF PRIMORSKY KRAI

abstract 1541910020 issue 154 pp. 217 – 225 30.12.2019 ru 247
The article summarizes the results of long-term cultivation of east-asian plants in the arboretum of the Gornotayezhnaya Station of the FEB RAS. For the most resistant and decorative species we have indicated: degree of winter resistance, shoot formation and perspective group. Regeneration of the vegetative mass in introduced trees and shrubs after severe damage by low temperatures depends on the spawning capacity of plants. In each species, the degree of shoot formation is its biological feature and can vary greatly in different plant species. The most east-asian species have a high or medium degree of shoot formation, good indicators of winter resistance and of generative development (bloom, fruiting). The tested east-asian species of plants are characterized by high adaptive potential, which makes it possible to recommend them to a wide culture in the southern Primorye. The purpose of the study is to evaluate the introduction stability of east-asian plants in the conditions of the southern Primorye. Тhe method of the integral assessment of the viability and perspective of introduction on the basis of visual observations, developed in the department of dendrology of the GBS, P.I. Lapin and S.V. Sidneva, was used to determine the perspective groups of the introduced species
331 kb

TO THE QUESTION OF MODELING THE PROCESS OF INTERACTION OF THE ELASTIC WHEEL WITH THE SOIL BASE

abstract 1552001002 issue 155 pp. 13 – 24 31.01.2020 ru 247
One of the most important problems facing agricultural production is to increase traction and energy properties and to decrease the deforming effect of wheel propellers of power tractors on the soil. The solution to this problem requires the widespread introduction of computer-aided design systems, which make it possible to predict the towing, fuel, economic, and agro-technological properties of the tractor unit at the design stage. Traction and energy indicators of wheeled agricultural tractors, the level of impact of wheel propellers on the soil are largely determined by the quality of pneumatic tires. The search for the optimal parameters of pneumatic tires, the compliance of tire characteristics with the parameters and operating conditions of the tractor unit, require solving two main problems. Firstly, the development of analytical dependencies describing the process of interaction of elastic wheels with the soil base, depending on the rolling mode of the wheel. Secondly, bringing to the engineering level the methods of calculation and analysis of the wheel propellers and soil system. The work discusses the issues of physical and mathematical modeling of a pneumatic wheel and soil system. It is noted that among the existing approaches to describing the process of interaction of an elastic wheel with soil, it is most preferable to use rheological models that take into account the simultaneous deformation and subsequent restoration of the soil and tire. However, when it comes to the existing models, the formation of the area of the contact patch is associated with a common normal deflection, which is not confirmed by numerous experimental studies. In the present work, the concept of agrotechnological deflection of a pneumatic tire is introduced. The developed model makes it possible to calculate the rut dept, the tangential and radial deformations of the tire, the longitudinal and normal deformations of the base, and the contact pressure under a known normal load on the wheel, wheel rolling radius and speed. We have also presented analytical and experimental dependences of the contact pressure and the rut depth on the size of the agrotechnical deflection
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