05.00.00 Technical science
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Description
Conditions in which the work of acoustic magnetic device proceeds are complicated because of the number of interconnections. Solving problems under such conditions analytically is difficult because of many variables and complexity of some dependencies. The article describes the conditions in which the work of acoustic magnetic device, designed for nonchemical treatment of hydroponic solution, takes place. The criteria, establishing the initial state of the chains, containing mutual inductance, are analyzed. The work establishes the criteria relating the physical parameters of the environment with the output parameters of the device. The similarity of conditions of heat transfer on the surface of the device is provided, and the relation of the scale of temperature and power lost when heating the ferrite and winding machine is determined. The criterion of the heat transfer process is defined. The criterion, determining the relation of the environment temperature to the thermal mode of the acoustic magnetic device, is defined. The criterion of the conditions at the boundaries of the system and cavitating liquid is determined. It is found, that the cavitation area appears in the technological volume of liquid at the work of acoustic magnetic device. The criterial equation for geometric parameters of different types and constructions of the acoustic magnetic device is defined. In accordance with the task based on the third theorem of similarity, the group of criteria that provides the similarity of the model to the proposed original by all existing indicators, is selected
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Description
The analysis of models is carried out from a definition position for system of optimum control of drilling of basic mathematical model on which calculation of optimum regime parameters is possible. The main equation for management of process of drilling of wells is the mathematical model of mechanical speed of a driving as function from axial load of a chisel, the speed of rotation of a chisel and a consumption of boring solution for cleaning of a well of destroyed breed. Key parameter is axial load of a chisel; graphically dependence of speed of drilling on loading has S appearance - a figurative curve of Bingham which has a convex mathematical extremum. In the article, domestic and foreign models of drilling are considered; their schedules according to skilled data of conducting of wells are constructed. Models are sedate, i.e. reflect only a linear site of a curve of Bingham, data of trade drilling is well approximated with initial and linear sites of curves. Thus, on them it is possible to make only rational management of process, and the optimum mode exists only on border of range of definition of function. Only the A.A. Pogarsky model is suitable for optimum control, having a mathematical maximum and S-shaped form of a curve. All models depend on two parameters of management – load of a chisel and speeds of rotation of a chisel and don't consider the third on influence on drilling speed parameter - a consumption of boring solution. Therefore, Pogarsky's model was finished by inclusion in it in an explicit form of a consumption of boring solution. Check of model by means of the regression analysis of skilled data of drilling from official reports of drilling foremen showed its reliability for 71-99%. The model allows carrying out optimum control of drilling in the "axial load of a chisel" parameter
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Description
The analysis of information security tools and systems is carried out in this article. This analysis revealed that the functioning of many of them associated with the implementation of intensive logical calculations. Ways of representing Boolean functions are analyzed, the criteria of efficiency and ways to increase productivity tools and security systems are presented
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Description
This article analyzes the boundary problem model of transport of binary electrolyte membrane systems in the approximation of Ohm's law. Different methods of solution are proposed
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THE ANALYSIS OF DESIGNS OF ELECTROOZONIZERS FOR PRESEEDING PROCESSING OF SEEDS
DescriptionQuality of seed material is defined by several parameters which are: viability, growth force, energy of germination and so on. But one of the most important indicators is productivity. It is possible to increase productivity of agricultural plants when using various ways of preseeding processing. One of ways of preseeding processing is ozonization. Thus, it is possible to receive ozone and air mix by means of various devices. One of the most effective ways of receiving ozone is its synthesis in the field of an electric discharge of an electroozonizer. But, at the moment, in the world the set of designs and modifications of electroozonizers is known. In this regard, we carried out literary search, with the purpose to define the most effective design of the generator of ozone. We investigated various designs of generators of ozone and their positive and negative sides are given. On the basis of the carried-out analysis it is established that the most suitable design for receiving ozone at preseeding processing of seeds is the ozonizer of lamellar type. But, despite efficiency of application of a lamellar ozonizer, it is necessary to achieve its stable work as preseeding processing of especially small seeds demands accurate observance of technological parameters
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ANALYSIS OF DESIGN PARAMETERS OF ELECTROACTIVATOR OF WATER TO IM-PROVE ENERGY CHARACTERISTICS
DescriptionThe article presents the analysis of the design of an electro activator on the basis of the equivalent circuit, the dependence of the resistance in the cells at differ-ent performance. It also provides a comparison of experimental and theoretical values of resistance
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THE ANALYSIS OF USE OF THE COMPLEX ADDITIVE «CURRANT» IN COMPOUNDINGS OF HALF-SMOKED SAUSAGES
DescriptionThe results of research of influence of “CURRANT” complex on periods of storage, physical, chemical and quality indicators of half-smoked sausages are resulted. The production technology of half-smoked sausages with use of “CURRANT” complex is considered
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Description
The work is done in scientific and practical directions for minimization of power losses in transmission of electricity to local distribution networks between the actors of the energy (producers and consumers) of energy-saving technologies focused on technological activities such as modernization and reconstruction of networks. Quite often in various circuits of power systems, it is advisable to transfer energy and its power through intermediate (transit) nodes. Structural changes in the electricity sector, at present, are mainly associated with the introduction of market relations between the subjects of energy exchange; therefore, in this work special attention is paid to the problem of calculating the power losses, as it is nonlinearly dependent on the power at the nodes and branches of a network. It should be noted that the nodes in problems transit capacity could be both sources and consumers. The latter necessitated the need for search of possible ways to reduce transportation losses of energy due to both the improvement and optimization of distribution networks and through the use of intermediate transit nodes. It follows that the transportation problem in this formulation is more General and expands the possibilities of optimization of power losses for the local subsystems of the energy clusters. The work is composed of the transport matrix for solving problems transit capacity, where the algorithm taking into account the distinctive features of which consist in the use of continuous numbering of sources and consumers in the matrix, and any node can be a transit country. The transit capacity ii-th node Zii=0, and the dimension of the matrix in contrast to the previously considered tasks has (n+m) (n+m) and it remains square as all the transport problems of linear programming. Transit variables Xii are included in the solution of the problem with a minus sign, and all transit variables are considered basic. From the above example in the work of a number of branches of a network is minimal, which significantly reduces the cost of building and maintaining the network, and the solver minimizes the power loss between the subjects of energy exchange and, as a result to savings from the standpoint of cost of construction of the network and the management of overflows of energy in it
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Description
There are about 575 thousand of citizens in the Krasnodar Region that are entitled to a preferential medical maintenance in accordance with the Federal Law of 17.07.1999 (№178-FZ) "On state social assistance." About 120 thousand of preferential prescriptions for 150 thousand of medicines are serviced per month. In order to make the drugs prescription process based exceptionally on real medical indications in accordance with modern concepts of medical service quality it is necessary to plan the medical-economic drugs prescription validity control (MEC). The work proposes the analysis and synthesis method of decision support system (DSS) modules for automation the selection of drugs prescription and medicinal maintenance cases, concerning the federal benefit recipients, while performing the MEC. DSS allows medical experts to estimate the efficiency of federal funds costs, that are spent on the preferential medicinal maintenance, moreover, it can serve as a basis for future purchases planning, as well as to correct and improve the efficiency of medical prescriptions. The DSS was developed in accordance with the approved procedure of information exchange in the Krasnodar Region; it involves the integration with existing systems. Furthermore, as the federal register of persons, entitled to the state social assistance, has common formats among all the Russian Federation subjects, the developed system can be easily adapted in other regions
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Description
In the article we have considered the analysis of the dependence of RGB components for segmentation of objects on images