Scientific Journal of KubSAU

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

A ROLE OF EXCIMER’ MOLECULE IN THE SYNTHESIS PROCESS OF FLUORINE COMPOUNDS WITH NOBLE GASES IN THE CONDITIONS OF THE IMPULSE GLOW DISCHARGE

abstract 0420808014 issue 42 pp. 196 – 201 14.10.2008 ru 2164
The Role of Excimer’ Molecule in the Conditions of the Impulse Glow Discharge is shown in the article. The accumulation of abovementioned molecule is needed for the successful synthesis of the fluorine argon compounds.
506 kb

A REVIEW OF THE CURRENT ELEMENT BASE WITHIN THE CONCEPT OF SMART GRIDS

abstract 1211607096 issue 121 pp. 1595 – 1607 30.09.2016 ru 502
Energy complex of the country is a collection of electrical installations high and low voltage, producing, transforming, transporting, distributing and consuming electricity. A huge web of networks and more than 700 generating plants with a total capacity of about 230 GW [1]. Almost 90% of this potential is formed in a unified technical complex of the Unified energy system (UES) [2]. Now there is a deterioration of the performance of the sector. In comparison with 90-mi years of XX century, more than 1.5 times increased power losses in the power grids. Significantly increased the proportion of obsolete electrical and auxiliary equipment, and the load on the network every day only increase. All speaks of the necessity of both local and global modernization of the electric power complex of the country and the creation of a new concept of consumption management and energy distribution in the network. In the framework of the energy strategy of the Government of the Russian Federation dated 13 November 2009 # 1715-R, to improve handling and ensure reliable operation of electric power systems, wider introduction of flexible transmission system (FACTS devices) and improvement of systems of automatic emergency protection and dispatching control [1]. The development of electric power complex of the country should be in the way of intelligent networks. This is possible through the use of modern components that can make the process of managing "intelligent". In foreign literature, this term is called the Smart Grid
235 kb

A PROGRAMM FOR DEFINITION AUTOMOBILE TRANSPORT NEED FOR HARVESTING PROCESS OF CROPS WITH CONSIDERATION PROBABLISTIC COMPONENTS

abstract 1271703049 issue 127 pp. 723 – 732 31.03.2017 ru 370
The article presents a computer program, which define automobile transport demand for the transport service of harvesters in the grain harvesting process. The program has a simple and intuitive user interface, a flexible setting system. It allows to change the source data for needs everything agricultural companies. It doesn’t require an installation and it can function in everything operation systems, which is fitted for Microsoft office applications acting. It doesn’t require a special studying or deep knowing in a mathematical statistic for using. Everyone specialist can use the program in an agricultural enterprise. The program considers distribution laws of stochastic parts of the grain harvesting process. These process features are important to consider due to using of determination values give very rough results. If there are mistakes in the structure design of the harvesting-transport complex then there are nonproductive machines downtimes or the harvest losing. Using the program gives better organization of the transport service in the grain harvesting process, and it can give the economical effect. It is especially important in modern competitive conditions at the worldwide market of agricultural products and also at the interior market with consideration of external economical sanctions and with consideration of the declared import replacement course. The successful work of agricultural enterprises defines the country's food security and it turns down the oil dependency of the Russian economy
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 563
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
583 kb

A MULTILEVEL SYSTEMIC APPROACH TO INTEGRATED OPTIMIZATION OF HARVESTING PROCESSES, TRANSPORTATION AND CLEANING OF GRAIN

abstract 1241610072 issue 124 pp. 1123 – 1146 30.12.2016 ru 533
A methodology for a multilevel system approach to integrated optimization of processes of harvest, transportation and cleaning of the grain during the harvest by the method of «Neveyka» has been developed. The main method of research - is a queuing theory of all components of the yield except straw. The System consists of 6 interconnected subsystems with their inputs and outputs, and its own optimality criteria. On the first level of optimization, the most efficient way of wheat harvest «Neveyka» has been proved. On the second level - the total duration of the harvest with allowance for 4-5 cultivated wheat sorts, each of which is harvested within 5 calendar days, was optimized. The third level proves the requirement of combine harvesters and transport vehicle. On the fourth level - the combinations of harvesting and transport units are optimized on the criterion of the minimum amount of the loss on the mutual expectations of harvesters and vehicles. The fifth optimization level proves the capacity of the reception station of the grain storage, where the main criterion for optimality is the least amount of losses on the mutual waiting time of the transportation vehicles, and the additional criterion is the minimum waiting time of vehicles in the queue. On the sixth and the final stage the specific annual economic effect (rub/ha or rub/t) from the implementation of the proposed technology is determined. It is established, that during the grain harvesting, transporting and processing of heap there are elementary or Poisson probability flows of requirements for service. The Representation of harvesting - transport link in the form of closed queuing system of independent harvesting unit. An approach to the justification of failure-free operation of a station for cleaning grain heap and storage of grain and chaff is presented
124 kb

A MODERN APPROACH TO POTATO PRODUCTION

abstract 1281704008 issue 128 pp. 146 – 153 28.04.2017 ru 456
Potato has been and remains one of the five world's most important crops. For nearly two hundred years potato in Russia is the "second bread". This is one of the so-called social products. Over the past 20 - 25 years of potato farming in our country, there have been significant changes, both positive and negative. Today, potatoes are grown in different soil and climatic conditions in more than one hundred countries around the world, including the desert oasis and beyond the polar circle. Potato cultivation Center recently has moved to Asia. In our time, the leaders of potato production are China, Russia, India, the US and Ukraine. Over the past few decades the number of produced potatoes has increased by 41% and the area under potato planting only 9.5%. From the above data it is clear that the world potato economy in recent years has got significant changes, indicating that the timeliness and relevance of the material in this article is true
301 kb

A METHOD OF CONSTRUCTING A MATRIX OF STATES OF THE DIAGNOSTIC PARAMETERS OF BRAKE SYSTEM OF A CAR

abstract 0991405074 issue 99 pp. 1086 – 1097 30.05.2014 ru 1362
The article describes the method of determining the list of rational diagnostic parameters of the brake system of a vehicle using the theory of probability and mathematical statistics. The problems determining the statistical probabilities of failures on objects considered a run; mathematical models (regression dependence) the probability of failure of run; A statistical evaluation of the significance of the coefficients of regression models; verification has been made on the adequacy of the regression models; the probabilities of possible states of objects. On the basis of the construction and analysis of structural- effect model brake system information and calculates the importance of each monitored parameter using the notion of information entropy, determine the parameters to be diagnostic, and builds a matrix condition of brake systems for non-destructive testing, in order to move on maintenance and repair of the actual state
143 kb

A METHOD OF CALCULATING THE COMBINE PARK IN VARIOUS CONDITIONS OF CLEANING

abstract 1311707084 issue 131 pp. 1025 – 1034 29.09.2017 ru 563
The article discusses the technique of calculating the combine harvester under various harvesting conditions. The authors consider two options for optimizing the fleet of combines: the first, when the harvested area is set, the second, when the harvested area is not specified. In the first case, the harvester park is calculated for a known area with different harvesting times, but within the boundaries of the agro-industry. In the second variant, a park of harvesters is justified and it is calculated how much space it will be able to clean for a different duration of harvesting operations
172 kb

A METHOD FOR PRODUCING PECTIN EXTRACT FROM SOYBEANS

abstract 1231609107 issue 123 pp. 1580 – 1593 30.11.2016 ru 504
Fruit shell - a waste of food and technical products. Only in rare cases they are used adequately to their rich chemical composition. Number of pectin substances in the structural components of the cell walls of fruit shells rather high. We investigated the quantity and quality of fruit shells contained soy pectin. The result of these studies was the proposed method for producing pectin extract from this kind of raw material. It describes how to work on the creation of a method for producing pectin extract from the leaf of soybeans. It's possible to extract pectin from the raw material, not previously used and pectin extract standard quality by applying advanced parameters of the process of conducting the hydrolysis-extraction. Valves soybeans washed with cold drinking water, dried and then pulverized. Then the purification is carried out by impurities. After that hydrolysis-extraction is carried out with a solution of succinic acid with heating. Separation of the liquid phase is carried out after completion of the hydrolease-extraction. We have developed and implemented as described above, the method solves the problem of soybean seed production waste
648 kb

A CORN HARVESTER CONSTRUCTION AND CALCULATION METHOD DEVELOPMENT FOR CORN COBS SEPARATION FROM STEM

abstract 1211607008 issue 121 pp. 292 – 308 30.09.2016 ru 563
The article presents research results of a corn harvester device for corn cobs separation from the stalks, constructed as a separate picker. Each picker unit consists of three pairs of flat conveying belts arranged in parallel to vertical planes, namely an upper pair of conveying belts, the lower pair of conveying belts and fixed to corn harvester sweep frame, kinematically is not connected to other mechanisms and is provided with electric power with the possibility of adjusting the width of the aisle and the rapid replacement of the failed module with a spare unit in the field repairs. Picker module provides simultaneous rotation of corn ear on its axis and motion relative to the stem that reduces corn cobs defect and energy consumption for separating cob from stalk. The method of calculation of the basic design parameters of the picker module is developed
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