Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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8738 kb

MOBILE TOOLS OF A PHYTOPATHOLOGIST FOR QUANTITATIVE FAST ASSESSMENT OF WINTER BARLEY LEAVES DAMAGE WITH BARLEY BLOTCH IN FIELD CONDITIONS BASED ON SPECTRAL ASC-ANALYSIS AND "EIDOS" SYSTEM

abstract 1311707031 issue 131 pp. 326 – 386 29.09.2017 ru 362
Assessment of barley for the blotch incidence is traditionally carried out by visual determination of leaf damage with the help of the available expert – phytopathologist , and with the account scales which allows to characterize a variety for resistance or susceptibility to the studied disease in field conditions. This method has a number of disadvantages that are proposed to be overcome by developing a new tool of a phytopathologist. The measuring tool of a phytopathologist should provide high accuracy of the assessment of plants damage caused by the disease, and the measurement procedure should be quick and easy. The aim of this work is to develop a mobile tool of a phytopathologist for quantitative fast assessment of winter barley leaves damage caused by blotch in field conditions. To achieve this goal the following tasks should be fulfilled. Objective 1: introduce the idea and concept of problem solution; Objective 2: justify the choice of method and solution tool; Objective 3: apply the selected method and tool to solve problems, i.e. to perform the following steps: – cognitive structuring of the subject area; – formalization of the subject area; – synthesis and verification of models; – improvement of the quality of the model and choice of the most reliable model – solving diagnostics problems within the most reliable model (classification, recognition, identification), decision support and research of the simulated subject area by studying its model. Objective 4: describe the effectiveness of the proposed solution. Objective 5: examine the limitations and disadvantages of the proposed solutions of the problem and prospects of its development by overcoming those limitations and disadvantages. The article provides a detailed numerical example of the solution of tasks on real data processed with the ASC- analysis and "Eidos" system
263 kb

SOFTWARE IMPLEMENTATION OF THE V.V.LEONTIEF MODEL IN C#

abstract 1311707032 issue 131 pp. 387 – 403 29.09.2017 ru 385
The article considers a solution for an economy prognosis formation task in different industries and service sector. In addition, it contains a review of mechanism of an intersectoral balance and theoretical components of V.V. Leontief linear economic model of intersectoral balance. Premises of mathematiceconomical apparatus usage and practical usage in economy planning of many world countries and also results of this apparatus working making that countries’ economic condition “almost balanced” are studied. Inferences of “Input–Output” method significance in economy planning for company groups and country in general are made in this article too. Solution of program product for calculations and analysis development necessity is substantiated. In this program, output of reports is envisaged. Practical example of intersectoral balance task with the developed program is given in article and accuracy of calculations is approved. Program product structure and development tools are described. The program can be used as a tutorial for students studying on economical directions for economic indicators calculation experience gaining
205 kb

EXPERIENCE OF SCREW ROTORS DEVELOPMENT AND DEPLOYMENT

abstract 1311707033 issue 131 pp. 404 – 414 29.09.2017 ru 267
The article offers a method of details finishing and cleanup processing based on the details and working environment granules mass hashing in combination with the target transporting movement from loading to unloading. Such combination is provided by means of technological process in which the movements are carried out at the expense of the working body executed in the form of a complex screw rotor with the multidirectional screw surfaces formed by flat elements. Four screw rotors designs and methods of their assembly as well as the recommendation on the use of screw rotors are shown: "The movement of the processed details and particles of a working environment is the most complex and infinitely various among the I class screw rotors and the most elementary and uniform among the IV class screw rotors". The practice and experimental control of the details finishing technological process introduction efficiency in screw rotors have shown that for the considered case productivity of, for example, agnail removal increases tens of times. It is reached not only at the expense of the possibility of continuous processing provision in screw rotors, but also due to significant increase in amplitudes of low-frequency fluctuations which are reported to loading masses by the screw rotors machines located at different angles to each other and to screw rotor rotation axis
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
235 kb

INFLUENCE OF THE “EKSTRASOL” BIOPREPARATION ON CHANGES OF THE MICROBIAL CONTAMINATION OF FRUITS IN THE PROCESS OF STORING

abstract 1311707037 issue 131 pp. 450 – 461 29.09.2017 ru 494
Long-term storage of fruits can be achieved by means of decreasing microbial contamination of their surface as a result of fruits pre-treatment by biopreparations before dispatching for storage. In the current study patterns of influence of fruits pre-treatment with the “Ekstrasol” biopreparation in a number of concentrations of bioagent on the microbial contamination of their surface during storage are revealed. The “Ekstrasol” preparation is a biofungicide, containing the Ch-13 strain of Bacillus subtilis bacteria and their metabolites. As research objects there were chosen apples of a zoned in the Krasnodar region variety called Idared and pears of a zoned in the Krasnodar region variety called Conference, harvested in 2016. The apples and the pears were stored over a period of 6 months in the low temperature conditions. Samples were withdrawn every month over the period of storing. The species composition and quantity of the most prevalent microorganisms, potentially causing the spoilage of apples and pears during storing, were identified. The optimal concentration of the bioagent, which provides the maximal decreasing of microbial contamination of fruits’ (apples and pears) surface, is established – 106 CFU/g, dosage of solution – 1 ml per 100 g of fruit
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THE STUDY OF TEMPERATURE INFLUENCE ON THE WEIGHTED AVERAGE TIME SPINSPIN RELAXATION OF PROTONS CONTAINED IN THE FLAX SEED OIL

abstract 1311707043 issue 131 pp. 479 – 488 29.09.2017 ru 461
To determine the mass fraction of linolenic acid in flax seed oil the authors developed a rapid method based on the pulse method of nuclear magnetic resonance with the use of NMR analyzers low resolution. This method has some significant advantages compared with the known method on the basis of chromatographic method for the determination of the mass fraction of linolenic acid in the oil extracted from the seeds of flax, namely, does not require additional sample preparation (extracting oil by solvent), eliminates the use of toxic chemicals, requires a much lower investment of time to conduct a single analysis, highly automated, and eliminates the influence of human factor on the research results. The method is based on the revealed correlation between the weighted average time spin-spin relaxation of protons contained in the triacylglycerols of the oil of the flax seed, and a mass fraction of linolenic acid in the seed oil at a temperature of 23ºc. In article results of research of influence of temperature on the weighted average time spin-spin relaxation of protons contained in the flax seed oil. Installed directly proportional linear relationship between the temperature of flax seeds and measured the average time spin-spin relaxation of protons oil contained in the flax seeds with the correlation coefficient is 0,930, the temperature change of the sample of seeds at 1 ° C leads to the change of the coefficient is 0.011 kt. The developed methodaccuracy in the temperature range from 20 to 26 ºC
279 kb

ASPECTS OF LEGAL REGULATION AND STANDARDIZATION IN CONSTRUCTION OF MANAGEMENT SYSTEM OF LABOR PROTECTION IN ORGANIZATIONS

abstract 1311707046 issue 131 pp. 515 – 527 29.09.2017 ru 396
At present, the state management of labor protection in Russia adheres to the goals of harmonizing the domestic legislation with the best world practices in this field, eliminating internal contradictions in legislation and building an active management system for labor protection provided that a «favorable climate» for the conduct of business activities is provided. The regulatory and legal state regulation of labor protection forms the basis for the development and implementation of a set of measures to create conditions for maximum protection of life and health of workers. The authors consider the modern legal framework and standards in the field of management of labor protection in the organization. Reflects the changes that have occurred in the Russian labor legislation regarding the employer's duty to create and maintain a labor protection management system. The aspects of introduction of the health and safety management system are considered taking into account the requirements of the draft international standard ISO/DIS 45001 «Occupational health and safety management systems - Requirements with guidance for use». It is shown that one of the modern directions of standardization in the field of labor protection is the development of risk management and an analysis of foreign practice of legal regulation of issues in the field of occupational safety. The article is intended for specialists in documenting processes carried out implementation, operation and maintenance of a health and safety system, and on students of higher education institutions and teaching staff
242 kb

TECHNOLOGY OF POWDERED FOOD ADDITIVES

abstract 1311707056 issue 131 pp. 659 – 671 29.09.2017 ru 458
In recent years, the problem of deficiency of biologically active substances in a number of food products has arisen. This is due to a deterioration in the quality of seed and planting material and, accordingly, a decrease in the content of BAS in the cultivated fruit and vegetable raw materials. In this regard, processing companies are forced to fill the lack of vitamins and dyes with synthetic components. The aim of the research is to obtain concentrated food additives from domestic plant raw materials. To achieve this goal, the tasks of obtaining powders from fruits and berries are solved with maximum preservation of BAS of the raw material during drying. High-quality powders from fruits and berries are obtained by cryogenic technology, using liquid nitrogen at one or several stages of the process. As intermediate results of the research, the paper presents materials on the dispersion composition of cryopowders and the solubility of their various fractions in aqueous media. The technology of obtaining and using powdered food additives from fruits and berries, ground in liquid nitrogen, has been approved. The comparative characteristics of the composition cryopowders from apricot, sea-buckthorn, pumpkin, feijoa and persimmon are given. The results of the studies confirmed the expediency of using cryopowders from fruits and berries to enrich various food products
142 kb

DEVELOPMENT OF TECHNOLOGY FOR THE PRODUCTION OF FOOD ADDITIVES FROM SECONDARY RESOURCES OF PEARS PROCESSING

abstract 1311707060 issue 131 pp. 709 – 719 29.09.2017 ru 747
The article provides experimental data, which help to substantiate the effectiveness and feasibility of application of plant resources, produced by the rubbing of the pears in the production process of puree as raw material for the production of secondary food additive. For the first time, with the use of pulsed NMR it is established that processing of secondary resources of pears processing in UHF EMF influence on the redistribution of bound and free moisture, i.e., the maximum transition was for linked moisture to free moisture, noted in the processing of secondary resources in UHF EMF with the rate of heating (increase in temperature) 0,4 °С/s to a temperature of 60 °С. It is established that such processing of secondary resources of processing of pears allows to increase the average speed of the subsequent IR-drying and reduce the time IR drying in 2 times in comparison with IR-drying of control sample (without pretreatment in UHF EMF). Pre-treatment of secondary resources of processing of pears to UHF EMF for the identified modes allows for their subsequent IR-drying to reduce the loss of vitamin C, 23.9% and P-active substances – by 20.6% compared with the control sample. We have developed technological modes of production of food additives from secondary resources of processing of pears, providing maximum preservation in its composition of thermolabile biologically active substances – vitamin C and P-active substances. On the basis of these studies, there was developed a set of technical documentation, including TU 10.39.25-423- 040801346-2016 "Food additive. Pear Powder" and a technological instruction for the production of food additives
939 kb

TECHNICAL PREREQUISITES FOR THE CREATION OF NATIVE SELF-PROPELLED POTATO HARVESTERS

abstract 1311707061 issue 131 pp. 720 – 730 29.09.2017 ru 563
The article analyzes the structures of domestic selfpropelled potato harvesters, developed in 60-90th of the last century. It considers their layout: based on selfpropelled chassis NL-45, NL-65, NL-75, K-mounted single-row and double-row 5B K-5A and KKSSH-2, on the basis of MTZ-142 Four-KSKD-4; specialized harvesters KSK-4-I, KSK-4A-1.We have disclosed the advantages and disadvantages of each of the structures shown the way forward. The analysis shows a general trend of equipment self-propelled combines cartofeleuborochnyh means to monitor the work of the working bodies and councils-ment process, as well as hydrostatic transmission based hydroficated bridges or motor-wheels to run on high-styah soon. In the arrangement of machines and their technological schemes trend-Uwe crease width, equipment storage hopper, enabling productivity-dit unloading products in a number of oncoming traffic. We consider the design perspective of modular self-propelled potato harvester BCSC-4K, consisting of technological and power module. Conducted owners-governmental tests combine BCSC-4K display-whether it combines advantages over KSK-4-I and KSK-4A-I performance and quality indicators
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