№ 126(2), February, 2017
Public date: 28.02.2017
Archive of journal: Articles count 63, 153 kb
-
Description
Theoretically and experimentally, we investigated the process of adjusting the pH of natural water of hydrocarbonate class electrodialyzer with bipolar membranes with channel length of 40 cm. We experimentally measured concentration of components, pH of the solutions in alkaline and acid channels of electrodeposition depending on the current density. The article describes a mathematical model for long channels; to scale the mass transfer characteristics of the process there was applied and verified a method of compartmentalization, which gave the possibility to calculate the dependence of the component along the channel length at different velocities of flow of the solution. Numerical calculations were compared with experimental data on electrodialyser of 10 cm and 40 cm length
-
01.00.00 Physical-mathematical sciences
DescriptionIn 1893, the French mathematician J. Adamar raised the question: given a matrix of fixed order with coefficients not exceeding modulo this value, then what is the maximum modulo value can take the determinant of this matrix? Adamar fully decided this question in the case when the coefficients of the matrix are complex numbers and put forward the corresponding hypothesis in the case when the matrix coefficients are real numbers modulo equal to one. Such matrices satisfying the Hadamard conjecture were called Hadamard matrices, their order is four and it is unknown whether this condition is sufficient for their existence. The article examines a natural generalization of the Hadamard matrices over the field of real numbers, they are there for any order. This paper proposes an algorithm for the construction of generalized Hadamard matrices, and it is illustrated by numerical examples. Also introduces the concept of constants for the natural numbers are computed values of this constant for some natural numbers and shown some applications of Hadamard constants for estimates on the top and bottom of the module of the determinant of this order with arbitrary real coefficients, and these estimates are in some cases better than the known estimates of Hadamard. The results of the article are associated with the results of the con on the value of determinants of matrices with real coefficients, not exceeding modulo units
-
MEDICAL ASPECTS OF TOXICAL DANGERS IN COMMERCIAL SHIPS (REVIEW)
DescriptionThe article presents an analysis of features of the organization of special medical and prophylactic support on commercial ships. First-aid treatment at poisoning of crews of the most widespread toxic matter (poisonous gases, oil products, methane, coolants, and fumigants) has been considered. It is noted that medical aspects of toxic dangers on the water transport have to include prevention of the pathological states of health of seamen, timely medical support of the ship, early diagnostics of pathological states, sorting of injured persons and the organization of first emergency medical aid
-
METAMODELING IN THE SYSTEM OF KNOWLEDGE OF ECONOMIC REALITY
DescriptionThe role of modeling in the knowledge of economic reality and the formation of economic theory is shown. Informational, instrumental, and communication functions of the models are the most important ones in the process of understanding of economic reality. The urgency of increasing knowledge on economic models and process of modeling of economic objects is proved. In this regard, the need to address a number of issues that are related to the field of economic metamodeling is noted. The definition of economic metamodeling as a field of knowledge and activities associated with optimal formalization of the philosophy, methodology and practice of development models of functioning and evolution of the economy is given. Economic metamodeling is considered as an important factor in ensuring maximum adequacy of the economic theory developed on the basis of the wide use of models of the economy and society as the object of modeling and research. The ideas about philosophical, methodological and methodical bases of modeling of economic phenomena are outlined; the purpose and objectives of the economic metamodeling are defined. Such principles of economic modeling as basing on the common philosophical and methodological basis presented in the metamodel of social economy, recognition of the subordination of economic models based on structural and functional hierarchy, pragmatism, reality of the economic models, the unity of semantic security models, and the optimality of the layout models are formulated. The task of developing of economic metamodel of the society and the metamodel of economic modeling is done
-
SIMULATION OF ATMOSPHERIC VORTEX FLOWS ON JUPIER AND SATURN
01.00.00 Physical-mathematical sciences
DescriptionAtmospheric currents on Jupiter and Saturn are characterized by turbulence and complex vortex structure, which is caused by a large angular speed of the gas giants. In this paper we consider two types of eddy currents - for hexagonal in the northern polar region of Saturn and the Great Red Spot in the equatorial region of Jupiter. For the numerical simulation of turbulent flows of this type the model of the planetary boundary layer was developed by the author. In both cases, the main strengthening mechanism is associated with geostrophic flow of small amplitude interacting with the planetary turbulent boundary layer. For hexagonal Saturn with its characteristic length scales and speed - 120 m / s and 14,500 km, respectively, there are more than 35 years data of observation. We have found that a small axial symmetry violation geostrophic flow in the shear causes the development of a hexagonal pattern in a turbulent boundary layer. In addition, under the influence of the Coriolis force and the eddy viscosity gradient in the turbulent boundary layer there is the jet formed, pressed against the lower edge of the layer. Great Red Spot on Jupiter has the characteristic velocity and length scales - 150 m / s, 14,000 km from north to south and 24000-40000 km from west to east, there are already more than 350 years data. It identified another mechanism of formation of vortex flow, coupled with the strengthening of small amplitude zonal flow in a turbulent boundary layer with the eddy viscosity gradient and the volume turbulent viscosity on a rotating planet. Both mechanisms are confirmed by numerical calculations of non-stationary planetary boundary layer
-
MOTIVATIONAL MECHANISM OF INCREASING THE EFFECTIVENESS OF ECONOMIC MARKET AGENTS
DescriptionThe article discusses the monitoring of labor in the pilot organizations. The monitoring of labor indicates that nowadays it is particularly relevant to introduce organizational innovations in the field of staff remuneration in order to stimulate the proper production behavior. The article deals with the problems of innovative development of the employee’s motivation in an unstable economic development. The authors proposed the technique of information provision of the management staff with natural and value indices of labor resources generated in IFRS. An effective system of motivation of the personnel is of a particular importance in a turbulent economic environment, because in a competitive environment the employer views the staff as an essential resource that determines the success of economic market agents. The greatest attention should be paid to the staff training and saving valuable employees that enables organizations to achieve high financial results. The main aspect of the solution of many administrative decisions is a science-based system for obtaining timely, reliable and cost-effective information on the use of labor resources generated in the accounting and analytical base of the organization
-
BEST AVAILABLE TECHNOLOGY AS AN ELEMENT OF ECOLOGICAL MODERNIZATION OF PIG-BREEDING
06.00.00 Agricultural sciences
DescriptionThe article analyzes the main factors of the negative impact of pig farms on the environment, for the characteristics of which are used criteria such as emissions of ammonia, methane, nitrous oxide, dust, loss of nitrogen and phosphorus in manure output, feed consumption and water consumption, economic evaluation, capital costs of reducing emissions, operational cost. The technical level, resource and energy consumption in the production of pork have been analyzed in a comparative perspective. The necessity of implementation of best available techniques in order to ensure environmentally oriented production growth has been provided. The importance of the development of technology selection algorithm and clarification the basic criteria for the selection has been emphasized. Also, there was detected the role of technical regulation for the prevention of excess pollution. The necessity of a comprehensive approach was proven for the implementation of NDT in the framework of environmental and industrial policies. Implementing NDT will provide the ecological modernization of pig production, which is confirmed by the experience of European countries, successfully implementing the concept of NDT from the 70s of the twentieth century. At the same time, not only economic measures should be used (exemption from pollution charges, grants and subsidies), but also the administrative tools (based on a valuation of NDT, integrated permits). Daylight technological regulation will provide "green" economic growth and will contribute to solving social and economic problems. Implementation of the project is not possible without the exchange of information, the definition of time and economic characteristics of the implementation of NDT, comparative analysis and classification technologies to NDT. In 2017, it has already been planned to publish the NDT reference "Intensive breeding of pigs,” while the implementation of best available technologies will become the basis of ecological modernization of the industry. The inclusion of the author to the technical working group on development of the handbook "Intensive breeding of pigs" allows to participate on-line in the discussion of topical issues
-
RESEARCH STAFF TEAMS OF A DEPARTMENT
DescriptionPerspectives of science in high schools were always defined by prospects of development of scientific teams. The author proposes to divide (depending on the contents of research targets) unities of the research process and the results of research teams of the Department into three categories: a scientific group, a scientific school and a leading scientific school. Research teams are characterized by not only quantitative and qualitative composition, but the annual results. We reveal functional duties of leaders of research teams and the head of the Department for their effective management. One of the main tasks of the Department is to create conditions for the disclosure of scientific and creative abilities of students. The article describes general concepts and the content of scientific researches, including the formulation of themes, goals and objectives of the research, as well as the basics of research methodologies required for students in conducting the research work. The structure of research groups of the Department, the content of their work, the main functional responsibilities of heads of scientific disciplines and the head of the Department, basics of scientific research methodology discussed in the article, will increase the organization's effectiveness and the efficiency of R & D Department
-
INVERSE PROBLEM MODELS OF THE SAMUELSON–HICKS
01.00.00 Physical-mathematical sciences
DescriptionThe article continues the cycle of their studies associated with the formulation and development of methods of construction of nonnegative solutions of inverse problems for dynamic systems. In this article the authors formulated and investigated inverse problems for dynamic systems: model of Samuelsson– Hicks. The technique of constructing non-negative solutions of the studied inverse problems. This method is based on the following scheme of the solution. First, we have to identify the formulation of the direct problem, then the formulation of the inverse. This work investigates how correct the mathematical models describing the dynamic economic system are. Further, in the specified tabular solutions of the direct problem, we have built a system of algebraic equations containing the unknown estimated parameters of the studied model. Then posed inverse problem is reduced to solution of a problem of quadratic programming, the solutions of which are defined in MS Excel. The theoretical material is accompanied by the specific example
-
Description
The authors made an analysis of biotechnology firms, working in medicine. In terms of the current direction of Russian economy in the process of import substitution, the researched topic of this article has its urgency based on understanding that to build competitive industries in the Russian Federation it is necessary to examine and adjust experience of leading states with certain achievements in pharmacology. Implementation of industry development programmes is possible not only through the active participation by state administration, but also through understanding of how overseas market participants operate. Thus, the object of research is companies of the biotechnology industry, the subject of the research are the financial indicators in relation to industrial value chain strategies. The United States market data was used because of the availability of substantial sources of information that are easier in intelligence conduction, and also due to the fact that the experience of the developed market economy can serve as a model for understanding the work of the business and its patterns for domestic entrepreneurs and public servants. Based on analysis made with descriptive statistics and econometric tools the authors demonstrated the correlation between financial performance and strategy of the value chain