Scientific Journal of KubSAU

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

DETERMINATION OF PARAMETERS FOR EFFICIENT COMBUSTION OF LOW-SULFUR FUEL OIL

abstract 1321708101 issue 132 pp. 1268 – 1277 31.10.2017 ru 460
The article presents the calculation of combustion of liquid fuel, which is determined by the air consumption for combustion of fuel, then the number and the composition of combustion products – flue gas resulting from burning fuel and the flue-gas temperature
665 kb

TRAUMATIZING OF INSIDE STRUCTURES OF WEEVILS AS A FACTOR OF REDUCTION IN SEEDS’ PRODUCTIVITY OF CEREAL CROPS

abstract 1171603051 issue 117 pp. 786 – 795 31.03.2016 ru 459
Productivity of seeds of cereal crops essentially depends on the quality of the seed grain, which is being defined both by biological condition of seeds and technologies and technical resources, which are being used in, machine processing of seed heap. In this connection, different injuries of weevils which are occurred while mechanical and thermomechanical influences from tools of machines and aggregates have got vital importance. Apart from the breaches of integrity of the weevil’s cover there are also exist traumatizing changes of its inside structures which are frequently covered with casings and do not being viewed with visual inspection. Conditions of inside structures of weevils were researched with radiographic method and also were defined possible types of traumatizing changes which depend on mechanical and thermomechanical influences, which were eliminated in universal classification of injures among the inside structures of seeds of agricultural cultures. Also, wу have analyzed the influence of chosen types of injuries on seeds’ sowing qualities and found that all injures of weevils essentially and differentially influenced the sowing and fruitful qualities and should be considered while choosing the technological schemes of preparation, working tools and while tuning the aggregates’ regime of work attached to the machine processing of grain and seed heap
239 kb

INVESTMENT POLICY OF CHINA AS THE DIRECTION FOR IMPROVEMENT OF THE RUSSIAN INVESTMENT CLIMATE

abstract 1231609108 issue 123 pp. 1594 – 1603 30.11.2016 ru 459
In the article the investment policy pursued in China, defining high rates of economic growth and social changes in the country is considered. It is proved that the investment policy of China was directed to inflow of volumes of foreign investments which create benefit for export growth, modernization of technologies and skills, without negative consequences. As on the volume of foreign investments China takes the leading positions, the main reasons for appeal of this country for foreign investors are considered. Dynamics of volume changes of foreign investments of China is traced, changes of volumes of the Russian investments into the Chinese economy are compared. Positive and negative sides of investment policy of China are shown. In the article three key sectors of economy in China in which foreign investments are encouraged are described. The first sector of economy will promote increase in export subsequently. The second sector is earlier limited or closed sectors of economy, investments into which began to be encouraged since 2005 in connection with the entry of China into the WTO. And as the last key sector of the economy in China expensive energy, infrastructure and ecological projects are selected. Primary branches of the Russian-Chinese bilateral investment cooperation are considered. The examples for improvement of the investment policy of Russia followed from experience of investment policy of China are given
144 kb

THE REDUCING SUGARS CONTENT AND Β- GLYCOSIDES ACTIVITY IN NONNUCLEAR CHLOROPHYLL MUTANTS OF SUNFLOWER

abstract 1311707040 issue 131 pp. 462 – 471 29.09.2017 ru 459
In the Southern Federal University on the genetic basis of sunflower inbred line 3629, a collection of plastid mutants with varying degrees of chlorophyll deficiency was created by inducing Nnitrosomethylurea. Chlorophyll content was associated with their photosynthetic activity. It was found that the lower the chlorophylls content in mutant plastids, the lower the sugar concentration in plant tissues. For example, during the entire period of plant growth for whites (1.0-3.0 % chlorophylls a+b from control) var- 10, var-17 and yellows (6.0-9.5 % chlorophylls a+b from control) var-29, var-33 leaf areas of variegated mutants depending on the development phase and the content of green pigments are characterized by a low (2-7 fold) sugar content. Yellow-green (75.5% chlorophylls a + b from control) leaves of en:chlorina- 7 contain a higher level of carbohydrates, although it is 1.5-2 fold lower than at line 3629. Monosaccharides are products of hydrolytic reactions catalyzed by β- glycosidases. It was shown, that the activity level of β- galactosidase and β-glucosidase exceeded the corresponding indicators of the control at 1.5-2 and 2-7 fold, respectively. Similarly to enzymes from the water-soluble fraction, membrane-bound β- glycosidases also showed increased activity in the leaves of the investigated mutants, compared to the control green plants of 3629. Consequently, the activity of β-glycosidases increases dramatically in leaf tissues with deficiency of photosynthetic. Thus, chlorophyll mutations can lead to a change in the expression of nuclear genes, resulting in a significant increase in the activity of β-glycosidases in the mutant organelles themselves
264 kb

INVESTIGATION OF THE INFLUENCE OF COMPLEX TREATMENT OF FRUITS WITH ELECTROMAGNETIC FIELDS OF EXTREMELY LOW FREQUENCY AND BIOPREPARATION ON THE CHANGE OF MICROBIAL CONTAMINATION OF THEIR SURFACE AND ON THE LOSS OF MASS IN THE PROCESS OF LONG-TERM STORAGE

abstract 1331709068 issue 133 pp. 893 – 904 30.11.2017 ru 459
Fruits are an important part of the diet of humans and many animals. In case of an improperly organized process of storing of fruits, the loss of mass and decrease of quality can be substantial. This makes relevant the research, aimed at enhancing existing and developing new technologies of fruits storing. In this article, the results of the investigation of influence of complex treatment of fruits with electromagnetic fields of extremely low frequency (EMF ELF) and а biopreparation on the change of microbial contamination of their surface and on the loss of mass in the process of long-term storage are revealed. Apples of the Idared variety and pears of the Conference variety were the objects of research. The change of microbial contamination of the surface of fruits, undergone a few types of pre-treatment (EMP ELF, bio-preparation “Vitaplan”, complex treatment “EMP ELF + the biopreparation” and no special treatment), after storing during 7 months in case of pears and 8 months in case of apples is shown in the article. It was found, that the greatest decrease of content of microorganisms on the fruits’ surface is achieved as a result of the complex treatment, combining the treatment with EMP ELF and an aqueous solution of the “Vitaplan” bio-preparation. The effective parameters of such a treatment for apples and pears are represented
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
482 kb

DEVELOPMENT OF THE ALGORITHM OF CALCULATION OF ELECTROMAGNETIC PARAMETERS OF THE STATOR OF THE COMPONENT OF A CONTROLLED ASYNCHRONOUS CASCADE ELECTRIC DRIVE

abstract 1201606041 issue 120 pp. 587 – 605 30.06.2016 ru 458
The article presents the algorithm of the program for calculation of distribution of a stream of the winding of the stator of a component of the operated asynchronous cascade electric drive. For the description of the algorithm we have chosen a two-layer winding on twenty four grooves. This algorithm is calculated on receiving a picture of distribution of the stream of the winding and, respectively, receiving a graphic representation. The algorithm is constructed on a number of the principles and types of calculation. On the principle of the task of the design of the winding, for a possibility of using this principle for further calculation. On the procedure of calculation of a picture of distribution of a magnetic field in a gap of a component of the operated asynchronous cascade electric drive, according to operation on his construction. On receiving the pseudo-animation showing a picture of change of the field in space at turn of three-phase system of currents eventually
171 kb

ADAPTATION OF COMPANIES TO THE CRISIS CONDITIONS OF THE ENVIRONMENT

abstract 1231609066 issue 123 pp. 943 – 955 30.11.2016 ru 458
The submitted article is devoted to adaptation of the enterprise to crisis environmental conditions. Crisis management includes a complex of the methods applied in different functional subsystems of management. Social technologies, methods of the economic analysis, forecasting, development of difficult investment projects and anti-recessionary programs, plans of restructuring and reorganization — are applied in a complex to the timely prevention and overcoming of crises. Crisis management includes set of knowledge and results of the analysis of practical experience which are directed to optimization of mechanisms of regulation of systems, identifications of the hidden resources, and development potential at a difficult stage of development. Specifics of crisis management are connected with need of adoption of difficult administrative decisions in the conditions of limited financial means, big degree of uncertainty and risk. The problem of establishing effective crisis management at the enterprises is difficult in the practical relation and demands the most serious study in the methodical plan. During system transformation in Russia this problem became almost vital, defining a real survival of a manufacturing sector our economy. In this regard, studying of features of crisis management in Russia in modern conditions is not only is actual, but also essential for survival and functioning of enterprises and organizations
179 kb

METHODOLOGY OF EXPERIMENTAL RESEARCHES

abstract 1271703059 issue 127 pp. 849 – 864 31.03.2017 ru 458
Today, the questions of accelerated development of science are essential; it has become a real productive force, the most powerful factor influencing the level of scientific and technical progress. The most important part of the research work is experimental studies. The article reveals the methodology of experimental research involving the content of laboratory and industrial research, main stages, as well as graphic presentation and the analysis of the results of studies; as well as the methodology for the general analysis of theoretical and experimental studies, the sequence of introduction of the results of the research and criteria for evaluating their effectiveness. The main issues of the methodology of experimental researches discussed in the article will increase the effectiveness of scientific and research work of scientific collectives of organizations and companies
389 kb

YIELD AND GRAIN QUALITY OF THE WINTER WHEAT IN THE CONDITIONS OF INSUFFICIENT HUMIDIFYING IN KRASNODAR REGION

abstract 1281704067 issue 128 pp. 984 – 1002 28.04.2017 ru 458
The influence of the predecessor and different doses of mineral fertilizers on the yield and the quality of the winter wheat cultivar ‘Krasnodar 99’ were investigated. Investigations were carried out in the North-Kuban Agricultural Experiment Station in two ten- course crop-rotations: grain plowing and grain - grass plowing (stationary experience). The soil is the black soil, low in humus, powerful, with humus content 3,95-4,00%, depending on the nutrition in the arable soil layer (0-30sm), mineral nitrogen is 5,9-8,3 mg / kg of soil, exchangeable potassium is 330-360 mg / kg of soil. It was found that the maximum value of the winter wheat crop structure elements is noticed in the fertilizer systems with complete mineral fertilizer, and the minimum value - with PK and NK. Winter wheat yield depends on the crop rotation of 8-15%; from its predecessor - 15-18% and 27-31% of the fertilizer. The protein content was mainly determined by the fertilizer dose. Enhanced and high doses of fertilizers contributed to an increase in the protein content to 12%.A strong correlation between protein content, agronomic methods and precipitation was determined
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