Scientific Journal of KubSAU

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

MODIFICATION OF WEIGHTED LEAST SQUARES BY USING THE OBSERVATIONS OF THE AMOUNT OF INFORMATION IN THEM AS WEIGHTS (MATHEMATICAL ASPECTS)

abstract 1051501050 issue 105 pp. 813 – 844 30.01.2015 ru 544
This article briefly discusses the mathematical nature of the author's proposed modification of the weighted least squares, in which the amount of the data is used as the weights of observations. There are two variants of this modification. In the first one, the weighting of the observations was made by replacing one observation with a certain amount of the information in it by the corresponding number of observations for unit weight, and then we applied the standard method of least squares. In the second method, the weighting of the observations was performed for each value of the argument by replacing all observations with a certain amount of information in one observation of unit weight which had been obtained as a weighted average of them, and then we applied the standard method of least squares. We have described in detail the technique of numerical calculations of the amount of information in the observations, based on the theory of automated system-cognitive analysis (ASC-analysis) and implemented it with a help of software tools - intelligent system called "Eidos". The article provides an illustration of the proposed approach on a simple numerical example. In the future, we are planning to give more detailed mathematical basis of the method of weighted least squares, which is modified by using the amount of information as weights, but also to explore its properties
231 kb

PHYSICAL MEANING OF CERTAIN SIMILARITY CRITERIAS OF TRANSPORT PROCESSES IN THE DESALTING CHANNEL THE ELECTRODIALYSIS DEVICE WITH ELECTROCONVECTION

abstract 1051501051 issue 105 pp. 845 – 864 30.01.2015 ru 803
The phenomenon of electro convection in membrane systems is of considerable interest, because it is, according to many authors, the main mechanism of overlimiting mass transfer. A great number of theoretical and experimental works, in which, as a rule, dimensional values were used, are devoted to electro convection study. Because of that, in actual fact, there is investigated the influence of individual factors on the transfer process. For example, the influence of voltage jumps, the average speed of a forced stream of the solution, the geometric characteristics of the channel, the initial concentration, etc. However, the influence of these factors appears not separately, at the same time. Thus, there is the problem of introducing dimensionless complexes of dimensional values that have a physical meaning and that allow to evaluate the inner links of the process. As it is known, for solving that problem, there is applied a theory of similarity, based on the transition towards dimensionless parameters in equations and formulas describing the process, and using values, typical of the system under study. This work is devoted to the determining of physical meaning of similarity criteria of salt ions processes, taking into account electro convection in the desalting channel of electro dialysis apparatus. The channel is bounded with perfectly selective, homogeneous anion-exchange and cation-exchange membranes. The introduced similarity criteria are used so as to conduct the theoretical study of the effect of a number of parameters of a desalting process on electro convection
238 kb

THEORY OF SIMILARITY OF ELECTRO MEMBRANE SYSTEMS WITH REGARD TO FORCED, GRAVITATIONAL AND ELECTRO CONVECTION

abstract 1051501052 issue 105 pp. 865 – 886 30.01.2015 ru 657
In the article, we have suggested a general mathematical model of non-stationary and non-isothermal process of a binary electrolyte transfer in dilute solutions in an electro-membrane system (EMS), taking into account the joint action of gravitational convection, forced convection and electro convection in potential dynamic mode. This model is a boundary problem for a system of two-dimensional quasi-linear Navier-Stokes equation and Nernst-Planck-Poisson in partial derivatives equation. We have developed a theory of similarity of the process of heat and mass transfer in electro-membrane systems, specifically, in a desalting channel of electro dialysis apparatus, taking into account joint actions of concentration polarization, space charge, gravity convection, forced convection and electro convection. It is shown that the criterion of electro convection does not directly depend on the initial concentration, and, therefore, electro convection occurs at any initial concentration. At the same time, the criterion of concentration convection linearly dependents on the initial concentration, and, therefore, at high concentrations, concentration convection prevails, while at lower concentrations, the role of gravitational convection begins to fall whereas the role of electro convection increases. The theory of similarity of the process of heat and mass transfer in the desalting channel of electro dialysis apparatus built in this work taking into account the joint action of concentration polarization, space charge, gravity convection, forced convection and electro convection is important for engineering calculations, for scaling the results of experiments in an electro-membrane cell for industrial electro dialysis water desalting apparatus
121 kb

THEORY OF SOCIAL MOTIVATION AS TOOL TO INCREASE SOCIAL PERFORMANCE IN SUB-SAHARAN COMPANIES

abstract 1051501053 issue 105 pp. 887 – 897 30.01.2015 ru 968
This article is about the theory of social motivation as a tool to increase social performance in Sub Saharan countries. So in the first part we will retell the theoretical understanding of motivation and its limits and then the explanation of the concept of social motivation as an alternative to complete the existing and old form of motivation. The second part of the article will talk about social performance and how to measure it. Several techniques are available for measuring performance of an employee. But the difference is in the sources of traits or qualities to be appraised. Jobs are different and have different requirements and different opinion of the management too. The practice is difficult sometime because of different kinds of workers (factory workers, executives or salespeople), which cannot be measured with the same indicators all the time. In this article we will see some theoretical and practical models of performance appraisal based on effectiveness and efficiency at work with concrete indicators. Also the readers will understand how social motivation, when well used in a company can increase the performance and transform the work place into a livelihood place for all stakeholders. And the article will end with the conclusion in which we have a piece of advice and literature references
410 kb

EFFECTS OF GROWTH REGULATORS ON ROOTING CUTTINGS OF SYRINGA (PHILADELPHUS L.,PHILADELPHACEAE)

abstract 1051501054 issue 105 pp. 898 – 908 30.01.2015 ru 821
Increased range of Syringa in landscaping is a topical issue. They are very decorative shrubs, more and more widely used in landscape design. Study of vegetative propagation of plants, with the use of growth regulators, was conducted to identify the most perspective stimulator and to reduce the terms of the finished product. Syringa refers to bad rooting cultures. However, the methods of green propagation of cuttings with the use of growth stimulators not only propagate a culture, but also increase the yield of landing products. The article considers the technology propagation by cuttings of this promising shrub. It also shows the effect of growth stimulators: radifarma and HB-101, used for soaking of cuttings. According to the research, we have found an apparent benefits effect of the processing of cuttings with the stimulators on growth and development of root system. The analysis of the tables of rooting rate of cuttings shows the positive development of cuttings in the processing of the growth regulators. We have obtained the experimental data allowing to define which varieties distinguished by the greatest rooting and duration rooting among all the studied cultivars. Thus, the studies show that the use of growth stimulators with propagation of Syringa cuttings is an effective way of reproduction
146 kb

COMPOSITION OF THE CLUSTERS ANDBIOCHEMISTRY OF FLORA, NIZINA AND ANYUTA TABLE GRAPES

abstract 1051501055 issue 105 pp. 909 – 920 30.01.2015 ru 614
The article presents the characteristics of the mechanical composition of clusters, the chemical composition of grape juice and fresh grapes and wine tasting evaluation of three varieties of table. We have identified the following uvologic indicators of clusters of cultivars Flora, Nisina and Anyuta: structure - 90.0; 91.5; 87.3; addition - 8.0; 6.6; 10.8; structural - 6.4; 5.4; 8.1; berries - 17.6; 15.0; 10.4. In the studied berries of grape varieties the mass concentrations of sugars and titratable acids were in the range 18,1-23,5 and 0,73-0,78 g/100 cm3 respectively. The combination of sweetness and acidity causes high taste properties of grapes. In grape berries of Flora and Nizina the concentration of fructose was two times more than glucose. Differences in the content wine, malic, lemon and succinic acids in berries varieties of Flora and Nizina were insignificant. In the berries of Anyuta variety, the concentration of lemon and succinic acids was more, malic was less than other varieties. Most of the studied varieties of berries contain malic and wine acids. More of cations of potassium, sodium, calcium and magnesium then in other varieties and it contain less than Anyuta berries. The difference in the content of various cations in the berries of varieties of Flora and Nizina is negligible. Tasting score of fresh grape of Flora variety was 7.0, Nisina - 7.8 and Aniyta - 7.6 points
186 kb

ECOLOGICAL PECULIARITIES OF SOIL AND FOREST COVER THE RED OCTOBER EXPERIENCED FORESTRY OF THE REPUBLIC OF ADYGEA

abstract 1051501056 issue 105 pp. 921 – 931 30.01.2015 ru 828
The article presents the ecological characteristics of soil types and forest cover of the Red October forestry of the State Unitary Enterprise of the Republic of Adygea. We have defined their relationship and the division into groups of forestry and environmental values. A complex combination of bioclimatic factors, parent rocks and topography has led to a large diversity of soil cover. We have revealed that different soils have different degrees of erosion on sloping hillsides, ravines, and steep slopes are dominated by strongly eroded soils. The most common form of physical degradation of soils of the red October experienced forestry is seal root layer observed on heavily used areas and pastures. Also, we found that poorly structured soils containing little humus are prone to compaction. Methods of rooting out areas after clear cutting of forests lead to secondary soil degradation. It especially enhanced if, at the moment of stressing, the soil is in the waterlogged condition. Therefore, at reforestation we should use different reclamation processing. And this leads to the difficulty of their use in reforestation. It is established that intensive anthropogenic activity leads to degradation of soil and forest cover of the study area
166 kb

REVISITING THE RICE SALT RESISTANCE (REVIEW)

abstract 1051501057 issue 105 pp. 932 – 947 30.01.2015 ru 570
The total area of saline soils of rice irrigation systems in the Kuban region reaches almost 80 thousands hectares. Salinization and alkalinization here become a limiting factor for cultivating rice and companion crops. In this regard, the tolerance of plants to soil salinity is a current problem of plant breeding that attracts the attention of many agricultural researchers whereas it is necessary to increase the yield in saline soils. Salt tolerance of crop plants is defined by a combination of properties which are based on the specific adaptation mechanisms. These mechanisms differ in nature and are associated with different levels of structural organization of the plant – from molecular to organismic one. The study of adaptation mechanisms at different levels of structural organization of plants is very important for increasing yield in saline soils. This article is a review giving a detailed analysis of plant salt tolerance research, particularly rice, which addresses the issues of inhibition of plant growth under saline conditions, the mechanisms of salt tolerance, the achievements and development of this branch of scientific research, as well as the application results of work found in the scientific literature
166 kb

ANGLO-SAXON LEGAL FAMILY: GENESIS, MAIN FEATURES AND THE MOST IMPORTANT SOURCES

abstract 1051501058 issue 105 pp. 948 – 962 30.01.2015 ru 1115
The process of Anglo-Saxon law system development has been considered in the article. The main sources of Anglo-Saxon law have been analyzed and the interrelation of law and judicial precedent has been taken up
163 kb

FORMATION OF NORMATIVE ELEMENT OF LEGAL SYSTEMS OF GERMANY AND FRANCE AND INFLUENCE OF THIS PROCESS ON OTHER COUNTRIES OF EUROPE

abstract 1051501059 issue 105 pp. 963 – 979 30.01.2015 ru 701
The article shows that in new and the newest time in Germany and France the normative element of legal system has been formed, basic features of which are the same for both countries. At the same time the author indicates to differences in normative element of legal systems of Germany and France. There were considered the specificity of national legal systems of Italy and Spain
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