№ 93(9), November, 2013
Public date: 30.11.2013
Archive of journal: Articles count 115, 263 kb
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01.00.00 Physical-mathematical sciences
DescriptionFor a field task, we have shown the analytical solution of the control example by means of which the condi-tions of the correct application of a method of second-ary sources of a field. The numerical decision in the form of Fourier series of the same task, but with use of the method of secondary sources is found. The method of the registration of heterogeneity of the environment which enters secondary sources the way that bring together analytical and numerical solutions is offered
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FUNCTION FEED ADDITIVE OF CAROTE-NOID VEGETABLE RAW MATERIALS FOR POULTRY
DescriptionThe article is concerned with the use of functional feed additives from pumpkin fruits and alfalfa juice for the poultry industry. In the study of laying hen it has been found that the use of a feed additive in-creased pumpkin paste content in serum and egg yolk carotenoids is more than two times, and the concentration of vitamin A in these tissues increased slightly, not exceeding 20%. Livability and productivity of poultry increased and average expendable fodder per head per day decreased. Economic calculation showed that the use of pumpkin paste reduces the cost of production of eggs. The use of alfalfa juice coagulates in diets for broiler chickens resulted in an increase in the concentration of carotene in the liver by 22,7-46,8% relative to control. The juice addition also increased the content of vitamin A in the liver by 27.9%, increase the safety and efficiency of the bird. The authors draw certain conclusions from experiment results that the use of functional additives in poultry from the fruit of pumpkin and alfalfa juice is an alternative to synthetic vitamin preparations and produce a more environmentally friendly products
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INCREASE OF COMPETITIVENESS OF THE INDUSTRY OF A REGION ON THE BASIS OF CLUSTER APPROACH
DescriptionThe questions of formation and management of clusters, development of cluster policy in a region are considered in the article. The conceptual model of formation of an industrial cluster is presented
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EFFICIENCY OF USING OF THROTTLING ELEMENTS AT THE PUMP PLANTS
DescriptionIn the article, we have examined the operation modes of the pump units when their efficiency is regulated by the force of throttling. Formulas for optimal operation mode are derived and zones for efficient work of the electric pumps with different initial parameters of reg-ulations are defined
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Description
The main contribution to the soil biological properties change in the combined pollution with lead and an alternating magnetic field makes lead pollution. Contribution of the interaction of factors of 20-30%. The contribution of the alternating field was insignificant or unreliable. Black soil and brown forest soils are similar in degree of resistance to the combined pollution. Grey sands have less stability
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GENETIC SEARCH TOPOLOGY OF NEURAL NETWORK MODELS
DescriptionIn the article we consider the topology of genetic search of neural network models
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06.00.00 Agricultural sciences
DescriptionResults of a complex assessment of hybrids of an apple-tree of new generation are given in article. The short characteristic is given to the best forms. Samples for various selection programs are allocated.
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GROWING DOMINANT SPECIES OF MICROALGAE IN NORTH EASTERN BLACK SEA
DescriptionIn this article we present data on the effect of addition of mineral nutrition elements in the structure of the phytoplankton community in the north-eastern part of the Black Sea in the different seasons. Experimental studies have shown that the increase in biomass of microalgae occurs at the simultaneous addition of nitrogen and phosphorus in the accumulative cultures. In the spring can get biomass Emiliania huxleyi, P.pseudodelicatissima, Chaetoceros curvisetus and Skeletonema costatum, in the summer – E. huxleyi, C. curvisetus, P.pseudodelicatissima, S.costatum, Thalassionema nitzschioides, Leptocylindrus danicus, Dactyliosolen fragilissimus, Proboscia alata, Pseudosolenia calcar-avis, in the autumn - C. curvisetus, S.costatum, Th. nitzschioides, L. danicus, D. fragilissimus
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Description
The article presents the results of an analytical review of existing methods to ensure anonymity, the study of the system architecture of the electronic voting, and presented the author’s idea to improve the client's anonymity in such systems. The result is a mathematical model, that provides a sufficient level of anonymity in electronic voting system to preserve the integrity and confidentiality of transmitted data
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THEORY OF EXPERT ESTIMATES IN OUR COUNTRY
01.00.00 Physical-mathematical sciences
DescriptionIs given the analysis of the development of expert estimates in our country after the war. Are presented a diversity of expert technologies, the main ideas and publications that help identify the driving forces of development in this promising scientific and practical field