№ 110(6), June, 2015
Public date: 30.06.2015
Archive of journal: Articles count 121, 265 kb
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THE MATHEMATICALLY BASED CHOISE OF VISCOELASTIC IN SHUNT GLAUCOMA SURGERY
DescriptionThe dramatic lowering of intraocular pressure (hypotony) is developing during glaucomatous surgery due to the formation of the new aqueous humor outflow. The calculations of the flow in the fluid balance parameters have shown, that for the normal intraocular pressure maintenance in the postoperative period the fluid flow out of the anterior chamber should not exceed 0,04 microliter in minute. The intensity of the aqueous humor outflow through the shunts with different parameters does not depend on the shunt length. The shunt with the inner hole radius 0,025 mm is the most safe as it provide the less outflow. The experimental comparative study of the static viscosity of the most widely used viscoelastics in ophthalmological surgery was carried out. It was stated that used in eye surgery viscoelastics on the basis of 1%, 2% and 3% sodium hyaluronate possess the viscosity, that differs in 10 and 100 times and has significant influence on the flow intensity out of the anterior chamber when the new outflow tracts are formed. The mathematically based choice of the most optimal relationship between the viscoelastics physical parameters and the inner hole size of the shunt type glaucoma drainage devices was established. Shunt with the inner hole radius 0,05 mm and simultaneous use of 2% and 3% sodium hyaluronate solution is the most safe for the maintenance of the eye tonus during the first 5 days after glaucoma surgery. The presented correlation allows to increase the safety of the surgical treatment of the patients with the refractory glaucoma
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01.00.00 Physical-mathematical sciences
DescriptionCurrently, the majority of scientific, technical and economic studies use statistical methods developed mainly in the first third of the XX century. They constitute the content of common textbooks. However, mathematical statistics are rapidly developing in the next 60 years. In some situations there is a need of the transition from classical to modern methods. As an example, we discuss the problem of testing the homogeneity of two independent samples. We have considered the conditions of applicability of the traditional method of testing the homogeneity based on the use of Student's t-statistic, as well as more up-to-date methods. We describe a probabilistic model of generation of statistical data in the problem of testing the homogeneity of two independent samples. In terms of this model the concept of "homogeneity" ("no difference"), can be formalized in different ways. High degree of homogeneity is achieved if the two samples are taken from one and the same population (absolute homogeneity). In some cases it is advisable to testing the coincidence of some characteristics of the elements of the sample - mathematical expectations, medians, variances, coefficients of variation, and others (testing the homogeneity of characteristics). To test the homogeneity of mathematical expectations is often recommended classic t-test. It is believed that the samples taken from a normal distributions with equal variances. It is shown that for scientific, technical and economic data the preconditions of two-sample t-test usually are not performed. To test the homogeneity of mathematical expectations instead of t-test we have offered to use the Cramer-Welch test. We have considered the consistent nonparametric Smirnov and Lehmann-Rosenblatt tests for absolute homogeneity
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INDUSTRIAL DEVICE FOR THE ELECTROCHEMICAL ACTIVATION OF WATER
DescriptionWe describe a stationary industrial plant for electrochemical activation (ECA) of the water created on the creamery of "Yuzhni Polyus" in Kropotkin. It includes 4 diaphragm reactor - electrolyzer of a dielectric material volume of 200 liters each, control cabinet, power electrical equipment, water supply system, containers for activated water, pumping equipment for its transport and ventilation system. The anode and cathode chambers are separated by ion permeable diaphragm reactors of cotton filter cloth. The reactors operate pairwise in succession, one pair in the production mode, the other - in the mode of preparation. The anode is made of titanium sheet; the cathode is made of stainless steel 12HN9T. In the selection of the electrode material we used mass-spectrometric investigation of the chemical element composition of water before and after electrochemical activation. The device produces alkaline catholyte 15.84 m3 / day (pH 10,4 ÷ 11,71) and acid anolyte 3.36 m3 / day (pH 2,24 ÷ 3,1). Using the created device (power consumption –11,4 kW ∙ h / t) meets the basic requirements of production – resource conservation, environmental safety, high performance and ease of use. These circuit diagram and photos of the installation allows reproducing it in other enterprises, contributing to the wider application of electrochemically activated water
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VOLTAGE REGULATORS ASYNCHRONOUS GENERATORS
DescriptionA promising is currently the use of asynchronous generators with capacitive excitation as a source of electricity in stand-alone power systems. Drive asynchronous generators may exercise as a thermal engine and wind wheel wind power plant or turbines of small hydropower plants. The article discusses the structural and schematics of voltage stabilizers and frequency of asynchronous generators with improved operational and technical specifications. Technical novelty of design solutions of the magnetic system and stabilizers asynchronous generator of electricity parameters confirmed by the patents for the invention of the Russian Federation. The proposed technical solution voltage stabilizer asynchronous generators, can reduce the weight of the block capacitors excitation and reactive power compensation, as well as to simplify the control system power circuit which has less power electronic devices. For wind power plants it is an important issue not only to stabilize the voltage of the generator, but also the frequency of the current. Recommend functionality stabilizer schemes parameters of electric power made for direct frequency converters with artificial and natural switching power electronic devices. It is also proposed as part of stabilization systems use single-phase voltage, three-phase transformers with rotating magnetic field, reduce the level of electromagnetic interference generated by power electronic devices for switching, enhance the efficiency and reliability of the stabilizer.
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MODERN STATE AND PROSPECTS OF DEVELOPMENT OF THE DOMESTIC RESOURCE BASE OF SUGAR PRODUCTION
DescriptionThe main indicators of production of factory sugar beet in the Russian Federation and in the Krasnodar region are considered in the article. The structure of sown areas and gross harvests of sugar beet on federal districts and the main producing regions of the country are visually presented. The tendency of change of yield capacity of sugar beet for 1990-2014 is revealed on the basis of analytical alignment. The assessment of stability of level and tendency of change of yield capacity and sown areas of sugar beet is given for the Krasnodar region and in general for the Russian Federation. The influence of the factors on the size of gross harvests of root crops of sugar beet is analyzed. Agro climatic conditions of cultivation of sugar beet are studied. The features of production of sugar beet in the natural and economic zones of the Krasnodar region are revealed. The dynamics of application of the mineral and organic fertilizers under harvest of sugar beet in the agricultural organizations of the Krasnodar region is considered. The current state of the national selection and seed farming is characterized. The growing dependence on import of the seed material is revealed. The attention is focused on the main problems creating threat of further development of a sugar beet subcomplex of the region and ensuring food security of the country on sugar in the conditions of action of the international sanctions. The prospects of increase in production of sugar from domestic raw materials are noted
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Description
The article deals with the results of research of acoustic and magnetic field influence on conductivity and pH value of hydroponic solution. For carrying out researches in this area the hypothesis of possibility of nutrient solution influence on ions by means of an acoustic and magnetic field is set up. A laboratory scale plant was constructed for a pilot study of the hypothesis. The solution was moved in the tube passing through a ferrite ring with winding. Thus, the solution was exposed to the influence of acoustic and magnetic field. The object of research was hydroponic solution of (NH4)2SO4; (NH4)2HPO4; K2SO4; Ca(NO3)2; MgSO4 in water having adjusted concentration and acidity. The solution was taken from the tank of laboratory scale plant by means of the pump, passed through the working area of the acoustic and magnetic device, filter, and then was poured into the tank, from which the sample for pH level changing was taken. The pH value was measured at the temperature of 22С by using electronic pH-meter KL-009(1)A. For control of instrument readings acidity was tested by universal test-paper. The initial pH value of solution made 5. As a result of acoustic and magnetic treatment of solution pH value of hydroponic solution increased from 6 to 6.9. The results show the possibility of pH value correction by small energy input
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Description
The article presents a study on agro-biological and technological indicators of Don indigenous wine grapes in the conditions of the Anapa-Taman area of the viticulture of the Krasnodar region. It was found that the introduced varieties are consistent with the conditions of the area and can be recommended for growing in production plantations in southern Russia. On ripening, the varieties are as follows: the early ripening varieties are Sibirkovy; a group of middle-ripening - Aligote, Plechistik, Varyushkin; to the medium-late - Bessergenevsky 10 and Krasnostop Anapsky. Highest yield was proved to for such grape varieties as Bessergenevsky 10 (150 kg / ha) and Varyushkin (140 kg / ha). Test grapes of Aligoté and Krasnostop Anapsky showed an average yield of 120 and 130 kg / ha, respectively, red and Sibirkovy Plechistik - 140 and 135 kg / ha. Comparing the current literature with the results, we noted the following notable differences: all the studied indigenous wine grapes in the conditions of the Anapa-Taman area of the Krasnodar region matured earlier, had higher productivity indexes and gave higher yields, than in the conditions of their homeland Rostov region
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Description
Within the Terek-Sunzha gas area we have identified patterns, most of which are divided into blocks in some cases with large amplitude shear. The processes of destruction of structures took place during the period of their formation and the subsequent time and due to the strong and catastrophic earthquakes. The article provides a statistical analysis of strong earthquakes in this region during the period 1688-2008 and the regularities of their existence. It is shown that the maximum number of earthquakes took place during the period of the depths of 5-12 km and the distribution of the number of strong earthquakes at levels subject to certain matematical patterns. With regard to the analysis of the distribution of earthquakes in a single year in the whole of the globe, we obtained the correlation of the displacement of rocks from levels of existence of earthquakes and possible displacement of rocks to very catastrophic earthquakes. We have also given the forecast frequency and the number of strong catastrophic earthquakes for the period from the beginning of the formation of structures up to the present time. We assessed maximum displacements of rock blocks during this time, which is in good agreement with the actual values of the displacement of rock blocks
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POLITICAL INFANTILISM OF TODAY'S YOUTH AS A DISTORTION FACTOR OF THE VALUE ORIENTATION SYSTEM
DescriptionThe article reveals the essence of the concept of social and political infantilism and investigates social and cultural background of infantilization, describes various forms of political immaturity manifested at the level of government; political institutions; society as a collective subject of political life; personal political infantilism and etc. The reasons of society infantilization are as follows: violation of the processes of political socialization, the distortion of the social and political reality by means of the media and social media and occurring deformation of the value orientations system, resulting from it. The values have a number of important functions: a constitutive, function a regulatory function and a, orientation one. One of the main functions is preserving the stability of social systems. This is what determines the importance of common values for large social groups. Their presence is a powerful unifying factor, while the destruction can lead to disturbances in the development and even the disintegration of society. The most vulnerable social group, in terms of manifestation of infantilism, is the youth. In the process of socialization the younger generations learn, correct, and form certain values, displaying high activity. This feature is often used by young people to control social crises, to implement color revolutions, and etc. Youth inherent lability of consciousness and social orientations instability makes it relatively easy to manipulate this social group in the political process, affecting primarily the system of their values. This will drastically increase the importance of the revival of the youth socialization mechanisms at a qualitatively new level and reduce the risks of its infantilization
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IMPROVEMENT OF THE FOOD SUPPLY OF THE RUSSIAN ARMY IN MODERN CONDITIONS
DescriptionLeadership of the Ministry of Defense in 2013 almost fully completed the process of catering service for the Army transition to outsourcing. Thus a function of food supply has been almost entirely transferred to commercial organizations. In view of the aggravation of geopolitical situation around Russia's borders army must be ready for combat operations in local wars, military conflicts and peacekeeping operations, which at any moment can be provoked by enemies in conflicts in dangerous areas. Accordingly to the full and timely food supply in the military units and institutions in special operations the food service of the Russian army should be prepared as well. In this article we have reasoned and substantiated proposals for reforming the existing system of food supply of the Russian army with the objective of increasing the capabilities of the system under the action of the Russian troops in the conditions of local wars, armed conflicts and in peacekeeping operations. Their practical implementation will allow a significant restructuring of the modern system of food supply of the Russian army to eliminate the dependence of the action or inaction of the outsourcing companies operating on the market of food supply troops in special operations, as well as during major trainings