№ 121(7), September, 2016
Public date: 30.09.2016
Archive of journal: Articles count 138, 339 kb
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06.00.00 Agricultural sciences
DescriptionIn the conditions of the Krasnodar region, we consider the quantitative and qualitative characteristics of seeds obtained when using different schemes of organization of hybrid seed production of squash in the Krasnodar region. As a result of studying various techniques in the production of hybrid seed of summer squash, we have established the effectiveness of using open pollination, and assessed the approbation of the signs of F1 hybrid plants obtained under different schemes of organization of hybrid seed production of squash
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06.00.00 Agricultural sciences
DescriptionThe purpose of the research is to compare the effect of a new symbiotic feed supplement created based on propionic and lactic acid bacteria with a widely used domestic and foreign enzyme-probiotic preparations in chickens 0-28 days of age of the Lohmann Brown egg cross. In the experiment, there were six groups of chickens: group 1 received basal diet (BD); group 2 – BD + symbiotic preparation; group 3 – BD + Bacell; group 4 – BD + Agrocell; group 5 – BD + Agroksil; group 6 – BD + Ollzaym Vegpro. Average daily gain, food conversion rate per 1g of weight gain, digestibility of organic matter, crude protein, crude fiber, crude fat, made up respectively: group 1 – 8.17, 1.91, 71.4, 58.3, 68.0, 81.1; group 2 ˗ 8.36, 1.90, 72.4, 60.2, 69.7, 88.1; group 3 – 8.13, 1.91, 73.1, 60.2, 69.7, 88.1; group 4 – 8.33, 1.86, 74.2, 62.5, 72.2, 87.6; group 5 – 8.50, 1.83, 77.3, 64.1, 73.4, 95.4; group 6 – 7.91, 1.92, 73.2, 67.5, 70.7, 94.3. The growth rate of chickens fed with symbiotic feed supplement was 2.3% higher than in the control and they showed the highest fiber digestibility. The chickens on diet with Agroksil enzyme efficiently raised growth rate (+4%) and reduced feed costs (-4.2%). Agrocell increased weight gain by 2% and reduce feed costs by 2.6%. The growth rate of chickens fed Ollazaym Vegpro was the lowest (96.8% of control), despite the fact that it increased significantly the digestibility of crude protein, but slightly improved the digestibility of other nutrients. Outcome: symbiotic feed supplement may be of interest as a means of increasing the productivity of chickens
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Description
The article presents the comparative characteristics of the current (diffusion) and developed (diffusion-press) sucrose extraction technology from sugar beet cossettes. We have presented the graphs of the influence of raw juice pumping value on its cleanliness and residual content of sucrose in partially desugared beet cossetes, the influence of partially desugared beet cossetes pressing power on residual content of sucrose in the pressed pulp and losses of sucrose with pressed pulp and also the technological scheme and regimes of diffusion-press extraction of sucrose from sugar beet cossettes. The criteria for determining the boundary parameters of diffusion and press sucrose extraction stages are identified. The comparative assessment of technological and economic indicators of the existing and the developed technologies of sucrose extraction from the beet cossettes is shown. The developed technology allows reducing raw juice pumping value simultaneously increasing its purity, thereby providing reduction of auxiliary materials and energy resources consumption, as well as increasing sugar yield. The technology of diffusion-press extraction of sucrose is implemented on 2 sugar beet factories of the Russian Federation. The economic effect from its implementation is more than 45 mln. rubles
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Description
The article presents the use of intensive methods of diet herd reproduction that will increase the productivity and profitability of the sheep industry. One of such methods is in vitro fertilization (IVF). For the success of in vitro fertilization procedure, an important requirement is the availability of highquality nutrient media, which help to preserve the genetic material and contribute to the further development of the zygote. The main requirement to the media for sperm is the ability of media not to cause their agglutination. The aim of our work was to search for new ways to reduce the agglutination of spermatozoa in the preparation of freshly prepared sperm in the process of production of embryos in vitro. To eliminate the agglutination of spermatozoa in the semen preparation stage, we used GCY medium, followed by demolition of seed in SOFw environment, which has resulted in a significant (almost 15 times!) reduce of the number of bound sperm. In our opinion, a decrease in agglutination in GCY buffer was connected with a specific influence of the constituent components of sperm. Conclusion: Thus, our method of preparation of freshly prepared sperm for in vitro fertilization allows a sharp decline in sperm agglutination, which will improve the fertility of eggs during the production of embryos in vitro sheep
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PARTICLE COLLISIONS IN THE RICCI FLOW
01.00.00 Physical-mathematical sciences
DescriptionIn this work, we investigate the problem of collisions of particles linked to the singularities of the gravitational field in the Ricci flow. A system of non-linear parabolic equations describing the evolution of the axially symmetric metrics proposed. We consider the metric having axial symmetry and comprising two singularities simulating particles of finite mass. There was numerically investigated the change of the metric in the collision of particles. Two formulations of the problem have been considered, one of which scatter particles after the collision, and the other as a result of the merger of two particles, a new stable static system, which can be interpreted as a new particle. The initial and boundary conditions using the exact solution of the static problem, so the collision persist particularly metrics caused by the presence of particles. In numerical experiments determined that the collision of the particles in the Ricci flow leads to the formation of gravitational waves, similar in structure to the waves, registered in the LIGO experiment. Consequently, we can assume that the observed gravity waves caused mainly by transients associated with the change in the metric system. A model describing the emission of gravitational waves in the collision of particles in the Ricci flow proposed. The influence of the parameters of the problem - the speed and mass of the particles, on the amplitude and intensity of the emission of gravitational waves was numerically simulated
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SUBJECT ONLINE RESOURCE FOR TEACHERS : PROBLEMS RATIONALE STRUCTURE, SOFTWARE COMPONENT
DescriptionThe article contains the general structure of thematic electronic resources application for methodological support of professional work of educational specialists (teachers of mathematics). A set of resource modules was selected in such a way, as to help a teacher to design a comprehensive learning process in the classroom. Therefore, the resource has next components: normative, substantive, methodological, technological. Essentially, the resource represents all types of professional work of educational specialists ( the teacher for planning and organization of the learning process in the classroom)
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Description
In complex multiparameter technical systems there are numerous and varied physical processes which, on the one hand, have a significant impact on the performance of those systems, and on the other hand, it is extremely difficult amenable to description in the form of meaningful analytical models based on equations, because these models must take into account the specific features of the systems. As a consequence, the development of conceptual analytical models is a "hand-made work" and it is associated with a large number of simplifying assumptions that reduce their versatility and reliability. But there is also another principle of modeling: the construction of phenomenological information models, i.e. models that do not have analytical forms of representation that describes the simulated system superficially as a "black box". Such models can be built directly based on empirical data and with the appropriate software it can be a standard technology much faster and much less time consuming than developing meaningful analytical models. On the other hand, the phenomenological information model can be sufficient to determine the rational design features and parameters of the modes of operation of complex technical systems. Besides, such phenomenological models can be viewed as the first stage in the development of meaningful analytical models. It is proposed to use a new universal innovative method of artificial intelligence for creating phenomenological models of complex technical systems: automated system-cognitive analysis (ASC-analysis) and its programmatic Toolkit which is a universal cognitive analytical system called "Eidos". In the system of "Eidos" we have implemented a software interface that provides direct input into the system large amounts of empirical data from an Excel file. The system of "Eidos" can directly (based on empirical (experimental) data) calculate how much information about the results of the technical systems is contained in the facts of possessing certain specific structural elements and certain values of the parameters modes of its work. On this basis, the system provides research-based and appropriate recommendations for the rational choice of design features and parameters of the operation modes of the simulated system
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MANAGEMENT OF DEVELOPMENT OF AGRARIAN PRODUCTION ON THE BASIS OF VERTICAL COOPERATION
DescriptionThe article shows the economic mechanism of operation of the vertical cooperation of small agricultural farms and their quantitative characteristics. There is great attention paid to the work of Revising Union; and there are shown: its objectives, its stabilizing role in lending to small businesses, and the volume of regional lending. The proposed project is meant to improve the current economy mechanism of vertical cooperation, to increase efficiency of regulation of the development process of consumer cooperatives of small farming with future possibility of public offering of constituent entities of the production infrastructure created with participation of the state. The authors recommend creating joint infrastructural facilities for small business with active engaging of the government, which will increase currently low motivation of participants of small-scale agricultural farming (SAF) in building a new cooperation. It is recommended to actively enhance the process of creating of infrastructure of economic activity, the state features in the construction of production, supply, logistics, processing, marketing and other necessary for practical objects in the form of storage facilities, slaughterhouses, depots mine-mineral fertilizers etc. It is proposed to enhance preparation and retraining of personnel for working with small farms and especially in their consumer cooperatives. To increase efficiency of the informative-consultative instrument of development of small business by adding more state funding, more actively implement a scheme of public-private partnerships with cooperatives of small agricultural farming. The crucial condition for successful development of SAF is lobbying interests of participants of small agrarian business by giving opportunities from regional Chambers of commerce and industry, by establishing associations of small forms of management to protect interests of participants in use of land, resources provision, lending, product sales, and other important concerns
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RECYCLING FEE: THE PATH TO THE DEVELOPMENT OF THE INDUSTRY IN RUSSIA OR ITS FURTHER DEGRADATION?
DescriptionRussia begins to work on the formation and implementation of recycling systems for decommissioned equipment of various kinds. The article analyzes the shortcomings and possibilities of creation of such a system in Russia; it gives recommendations to address some of the issues of the problem
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CLARIFICATION OF A MODEL OF A BALANCING ROBOT BY LOGICAL AND EMPIRICAL METHODS
01.00.00 Physical-mathematical sciences
DescriptionThis work studies the mathematical model of the object “inverted pendulum” on the example of the unstable electromechanical devices which is balancing robot on wheel couple. Unfortunately, many details of object model are unknown. Logical and empirical method offers hypotheses about the difference between the actual object model from its mathematical approximation based on logical analysis with subsequent refinement of this model and testing of the hypothesis with modeling of the systems with the updated model. As a result, the amendments to the model have been found containing nonlinear components. With the help of these amendments, the dynamic characteristics of the actuator, filters, friction and the tendency of the object to fluctuations are better taken into account