№ 104(10), December, 2014
Public date: 30.12.2014
Archive of journal: Articles count 150, 359 kb
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Description
In the article we present a method of cutting logs, containing several quality areas. For this method, a mathematical model was developed to determine the volumetric output of lumber, which allows to determine the geometric dimensions of the lumber cut from the different quality areas separated concentric circles, depending on size and quality characteristics of logs
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01.00.00 Physical-mathematical sciences
DescriptionThis article continues the works [1,2], devoted to the theoretical study of the basic laws of electroconvection caused by natural or artificial inhomogeneous conductivity of ion-exchange membranes in a smooth rectangular channel electrodialysis desalination unit. For this purpose, a mathematical model was created for a binary electrolyte electroconvection at overlimiting current modes in the form of a boundary value problem for a coupled system of the Nernst-Planck-Poisson and Navier-Stokes equations. We have studied the influence of heterogeneity on the ion-exchange membranes and ion transport electroconvection salt, calculated currentvoltage characteristic. The possibility of intensification of mass transfer due to the surface modification of ion exchange membranes was also shown
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06.00.00 Agricultural sciences
DescriptionThe purpose of this research is to assess the ability of reclamation plantations of walnut and black nut to accumulate heavy metals in phytomass – leaves, shoots, fruits. The studies were conducted in the Rostov region, as well as in the Krasnodar and the Stavropol regions
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01.00.00 Physical-mathematical sciences
DescriptionWe have proposed the method for testing of independence of two alternative variables on the basis of statistics of non-numeric data. The method is aimed at application in problems of statistical quality control. Testing of independence is based on set of small samples, i.e., in the Kolmogorov’s asymptotics, when the number of unknown parameters of the distribution increases in proportion to the data size
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Description
The article considers the problems of the methodology of the expert research for accumulation of profit, by using methods of economic analysis, defined objects of expert examination, considered by the general scheme of research. Special attention is paid to the balance sheet method of verification and methods of economic analysis, which are especially effective in the cover-up of up-moves from taxation
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MULTI-PURPOSE HARVESTING DEVICES AS A BASIS OF A COST REDUCTION
DescriptionThe article presents a technological scheme and the effectiveness of multifunctional machines for harvesting crops depending on the cost of funds, labor and energy
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01.00.00 Physical-mathematical sciences
DescriptionThe method of ordinary least squares (OLS) is widely known and deservedly popular. However, some attempts to improve this method. The result of one of such attempts is the weighted least squares (WMNC), the essence of which is to give the observation a weight which is inversely proportional to the errors of their approximation. Thereby, in fact, monitoring is ignored the more the difficult to approximate it. The result of this approach, formally, is the approximation error decreasing, but in fact, this occurs by partial refusal to consider the "problem" of observations, making a big mistake. If the idea underlying WMNC to bring to the extreme (and absurd), then in the limit, this approach will lead to the fact that from the entire set of observations there will be only those that lie almost exactly on the trend obtained by the method of least squares, and the rest will simply be ignored. However, according to the author, it's not a problem, and the failure of its decision, though it might look like a solution. In the work we have proposed a solution, based on the theory of information: to consider the weight of observations, the number of the argument of the value function. This approach was validated in the framework of a new innovative method of artificial intelligence: methods for automated system-cognitive analysis (ASA-analysis) and implemented 30 years ago in its software toolkit, which is "Eidos" intelligent system in the form of so-called "cognitive functions". This article presents an algorithm and software implementation of this approach, illustrated in detailed numerical example. In the future it is planned to give a detailed mathematical basis of the method of weighted least squares, which is modified by the application of information theory to calculate the weights of the observations, and investigate its properties
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THERE ARE SOME ASPECTS OF PUBLIC POLICY IN AREA OF AGRICULTURE 1958-1964
DescriptionThe important historical feature of the period examined by us was that the economic events of party and state, conducted in an agrarian sector in his chronologic scopes, were aimed at the correction of defects of former politics in the village conducted from the beginning of collectivization. Politics of soviet guidance in area of agriculture in 1958-1964 carried contradictory enough and inconsistent character. From one side, it fully realized the necessity of changes for this sphere, with other, it could not renounce political and ideological principles and to give large freedom to the peasantry
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Description
The article discusses the features of the personality of the victim in cases of crimes against life and health, motivated by ethnic, racial or religious hatred or enmity with victimological perspective
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RUSSIAN FEDERATION CIVIL CODE' NOVELS CONCERNING ENTITIES
DescriptionThe following article is devoted to the comparative analysis of the Russian Federation Civil Code's entities which were actual before and new commercial and non-profit organizations' regulations. We have also performed a case-study, concerning entities' classification