№ 58(4), April, 2010
Public date: 28.04.2010
Archive of journal: Articles count 32, 52 kb
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PROBLEM OF INCREASING THE INFORMATION SYSTEMS EFFECTIVENESS IN CONTEMPORARY CONDITIONS
DescriptionThe increase of conceptual system for the description of the efficiency improvement problem has been submitted for consideration. The composition and structure individual criteria and requirements for variant formalization of complex criterion information systems effectiveness as a technical system and means of analysis and information processing have been presented as the methodological initiative in this article
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Description
The approach to the solution of resource allocation problem in the process of activity planning for research and development organization having sufficient scientific and design capacity is considered. This approach enables to solve complex resource allocation problem in the context of designing division of work and network team building and project implementation technology, using software intended for solution of traditional linear programming tasks. Database modeling technique with account of specific characteristics of this approach is described
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06.00.00 Agricultural sciences
DescriptionNecessity of application of Emistim preparation at various stages of clone micro reproduction is investigated and proved: induction of meristems into culture, micro reproduction itself, education of roots and micro grafting
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EXTRACTION OF DNA FROM HERBARIUM LEAVES VITIS VINIFERA L.
06.00.00 Agricultural sciences
DescriptionTwo methods were used for DNA extraction from herbarium leaves of two subspecies: V. vinifera subsp. sativa D.C. и Vitis vinifera ssp. silvestris Gmel. DNA extraction is difficult from herbarium leaves plants because of the presence of metabolites that interfere with DNA isolation procedures and downstream applications such as DNA restriction, amplification, and cloning. The quality of DNA was checked on a spectrophotometer by measuring the level of absorption at A260/280 nm. The results showed the successful extraction from mature and dried leaves of DNA when using the СТАB-method №2. Another method hasn’t shown satisfactory results in amplification of DNA
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SYSTEMIC COGNITIVE APPROACH TO AGRO-INDUSTRIAL HOLDING MANAGEMENT
DescriptionIn the article the management problem of agro-industrial holding is formulated in a general way, which is, on the one hand, it is necessary to produce recommendations about holding management, where its adaptive model is necessary, and, on the other hand, the construction of its model is inconvenient because of high complexity and dynamism of internal logistics of the object of management, its territorially distributed and diversified character, a large quantity of the economic indicators characterizing its activity at various levels of its organization. The general method of the decision of the formulated problem by using the systemic cognitive approach is offered
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THEORY AND CONSTANTS OF WALL TURBULENCE
01.00.00 Physical-mathematical sciences
DescriptionThe completely closed model of wall turbulence was derived directly from the Navier-Stokes equation. The fundamental constants of wall turbulence including the Karman constant have been calculated within a theory. This model has been developed also for the accelerated and non-isothermal turbulent boundary layer flows. The estimated mean velocity, temperature and impurity concentration profiles as well as the spectral characteristics of the streamwise velocity component are to be shown in a good agreement with the experimental data
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Description
There given the results of researching, treatments and forming of image system of university; there described role and place of image service in marketing structure and management of superior educational institution and mechanism of image management of university
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CONSTRUCTION-TECHNOLOGICAL IDEAS FOR PROTECTION AND PLANTS CARING
DescriptionThe article presents the analysis of mechanize processes for chemical protection of plants and the new construction of spraying with low gallonage, a new method and water solution and machine for address painting at litter plants by organic glue with chemical destroy, and new grass cutter with address painting of litter plants by organic glue with chemical destroy, and new cutter designed to destroy weeds with electric current
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THE RESEARCH OF VITIS SILVESTRIS GMEL. IN THE NOTHERN CAUCASUS
06.00.00 Agricultural sciences
DescriptionVitis vinifera subsp. silvestris Gmel. is the wild subspecies of Vitis vinifera L. and an important source of genetic resources for grapes breeding. Currently, this form is very rare in the world. In this paper, conducted the first study of wild grapes which was found in the North Caucasus with the use of two microsatellite markers. The study have shown a high level of genetic diversity: intrapopulation variability was 75,2%, the interpopulation variability accounts was 24,8%. All populations are characterized by certain unique genetic structure and may be as donor of resistance genes which have a long-term evolutionary selection
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Description
In this article the concrete definition of generalized stream-oriented model of economic efficiency of technologically full chain of grain manufacture, its processing and realization of baking production is spent. The mathematical models describing processes of transformation in blocks of a technological chain are received, and the model for estimation of its economic efficiency is developed