Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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182 kb

FORMULATION AND SOLUTION OF THE PROBLEM OF DISCRETE CONTROL IN THE THERMOPHILIC STAGE OF THE COMPOSTING PROCESS

abstract 1301706063 issue 130 pp. 883 – 893 30.06.2017 ru 438
The article formulates and solves the task of discrete control in the thermophilic stage of the composting process. It is shown, that considering the relay control entity to maintain specified process conditions requires the organization of the sliding mode. We have solved the problem of minimizing the temperature deviation of the substrate from the set values and the deviation of the oxygen concentration in the gas phase of the bioreactor from the specified values. The article shows an algorithm to compute the discrete control of the composting process in the thermophilic stage. This article was prepared in the framework of the scientific project 16- 48-230441 a(R) "Mathematical modeling of the processes occurring in the automated installation for year-round production of organic fertilizers in the conditions of the Krasnodar region", financed by RFBR and the administration of the Krasnodar region
219 kb

COLOR- SENSITIZED SOLAR ELEMENTS

abstract 1191605093 issue 119 pp. 1378 – 1389 31.05.2016 ru 437
Photovoltaic devices are a promising solution to the energy crisis, because they generate electricity directly from sunlight, without producing CO2. While color-sensitized batteries are the most studied element, mainly due to its low cost and high efficiency solar energy conversion into electricity. Until recently, the color-sensitized solar cells performance was less than 1%, however, the use of titanium dioxide as the anode material have greatly raised their efficiency. The advantages of titanium dioxide is primarily in the low cost, but its use provides high light capture efficiency, with external quantum efficiency (efficiency incident photon - charge), usually in the range of 60-90% using nanocrystal forms in comparison with
235 kb

HYDRAULIC DESIGN OF LINEARLY DISTRIBUTED RELEASES OF STORED WATER DISCHARGES

abstract 1251701013 issue 125 pp. 196 – 209 31.01.2017 ru 436
The purpose of the article is to develop methods for hydraulic design of extreme discharges and water depths in critical gage lines of waterways diverting water from spillways for the accepted law to regulate linearly distributed releases of stored water discharges. The task of control for linearly distributed releases of stored water discharges is based on hydraulic design for the process of propagation and transformation of long waves described with Saint Venant equations. These equations are nonlinear and have no accurate solution in general case. To get approximate solutions they are linearized. It is established that the task of integration for these equations supposes to get their preliminary solution in the form of complete integral. Applying the complete integral theory we get analytical solution that describe the process of transformation for one direction waves moving in infinitely long prism canal of semi-bounded extent with initial uniform regime of water flow. An example of changes in both water discharge and flow depths in two fixed downstream gage lines of hydraulic works at the distance of 5000 and 10000 m from the initial gage line is presented. Hydraulic design was carried out according to the derived analytical formulas accepted as an example classical method of characteristics that is considered as analogous. Comparison of the design results on two methods allowed to determine the maximum relative error that does not exceeds 3,5 % for the design discharges and water depths. Introduction of the developed method for hydraulic design of linearly distributed releases of discharges in waterways diverting water from spillways will make it possible to optimize idle and non-technological stored water discharges
886 kb

PARTICLE SIZE DISTRIBUTION OF ASH OF NOVOCHERKASSK SDPP

abstract 1241610052 issue 124 pp. 799 – 808 30.12.2016 ru 435
The flowsheet purification of exhaust gases in the Novocherkassk SDPP after the electrostatic precipitator on I-th stage of purification set group cyclone, on the II-nd stage of purification - baghouse. To determine the particle size distribution of fly ash, we selected ash from the transport network to the group cyclone, and the in a group cyclone, and in a baghouse. With the help of the microscope "Biomed- 3" we produced pictures of ash particles with different magnification. Granulometric composition of three selected ash samples were determined according to the mass content of particles of different grain size, expressed in percent relative to the weight of dry ash sample taken for analysis. For size fractions from 10 mm to 0.5 mm sieve method is applied without rinsing with water, for size fractions less than 0.5 mm sieve method is applied with water washing. The particle size of the ash mixture, taken up before the cyclone,
432 kb

FORMATION OF BASICS FOR EQUIPMENT UTILIZATION ON VARIOUS LEVELS OF ITS LIFE CYCLE

abstract 1321708015 issue 132 pp. 191 – 207 31.10.2017 ru 435
Nowadays, in Russia the problem of utilization of self-propelled vehicles has not been solved yet. This problem remains because in Russia there is no accurate system of cooperation between developers, producers and customers of mechanical products. The article analyses Russian and foreign experience in solving this issue, gives brief information about working out Russian system of agricultural machines utilization
197 kb

MEANS AND METHODS OF INFORMATION SECURITY IN THE ECONOMIC SPHERE

abstract 1191605047 issue 119 pp. 653 – 665 31.05.2016 ru 434
People commit nine out of ten acts of sabotage, one way or another associated with information technologies. According to experts at InfoWatch, developer of systems to protect confidential information from insiders, the reason for this profession lies in the psychological characteristics of these employees. To understand the problem let a couple of real-life examples illustrate the typical traits of professionals in the information environment. In addition, if the first teller did not hide his name, the latter decided to remain anonymous. Deep psychological background of the act of sabotage often leads to the fact that a disgruntled employee threatens boss or coworkers, for example, by e-mail. Sometimes he even shares his thoughts with someone from colleagues. In other words, it is not only the attacker, who knows the information about the planned diversion. Analysts estimate, that in 31% of cases, other people have the information about the plans of the saboteur. Of these, 64% are colleagues, 21% are friends, 14% — family members, and another 14% are allies. In addition, we were able to establish that 62% of corporate saboteurs think about their actions in advance. In 47% of cases, they commit preparatory acts (e.g., theft of confidential data backups). 27% — design and test of the future mechanism of the attack (preparing a logic bomb for the corporate network, additional hidden inputs to the system, etc.). Whilst in 37% of cases of the activity of employees, you may notice: 67% of the preparatory action may be visible online, 11% are visible offline, 22% — both at once
1680 kb

PROTECTION OF PERSONAL DATA IN THE INFORMATION TRAINING SYSTEMS

abstract 1221608075 issue 122 pp. 1084 – 1097 31.10.2016 ru 434
Nowadays, a necessary condition for progress in the field of information technology is wide adoption of standards and technologies of information systems used for hardware and software products. Building software of computing and information systems, based on the ideology of open systems, allows to successfully solve the problems of portability on platforms of various manufacturers, the problem of interchangeability of components and, most importantly, ensures the integration of devices and users in a variety of computing and telecommunication networks. It should be emphasized the fact that to date the successful implementation of any significant projects in the field of information and computer technology, management of information and telecommunications is not possible without coordination of development with existing standards in the field of information systems and, in some cases, the development of new standards. In the transition to integrated computing and telecommunications systems principles of information systems form the basis of technology integration, the establishment of sectoral, regional and national information infrastructures and their interactions on a global scale. Therefore, we can conclude that the technology of information systems today is the working environment in which the priority is the development of information and telecommunication technologies, telecommunication and computer engineering
146 kb

MODELING NEURAL INTERACTIONS WITH THE USE OF CELLULAR AUTOMATION

abstract 1241610036 issue 124 pp. 601 – 610 30.12.2016 ru 434
This article considers the organization of neuralnetwork interactions based on models of cellular automata. These models are focused on improving the efficiency of the iterative processes of functioning of neural networks and their learning. The models considered in this article are presented in the form of two-level hierarchical structures. Models of the lower level are defined as "cellular neural element". They are based on formal descriptions of the dynamic neurons with the additional insertion of the state functions and the special procedures of formation of the specified function. Also, we have added special methods for forming patterns of activation functions. The conception of developed models is based on the use of the theory of graphs, theory of neural networks and the mechanism of cellular automata. These models will be used as the basis for software modeling
309 kb

REGRESSION MODEL OF RATNIK BARLEY COMBINED PRESOWING PROCESSING BY OPTICAL RADIATION AND CHEMICAL PROTECTANT

abstract 1191605033 issue 119 pp. 466 – 476 31.05.2016 ru 433
The procedure of combined electrooptical processing which allows to disclose the reasonable energy and technological conditions of seeds’ treatment and to define the main factors which influence such seeds’ sowing qualities as: germinating power, germinating ability and length of sprouts is used in this article. Besides, the procedure allows conducting the research of efficiency evaluation of some rational parameters and conditions of treatment which influence their yield characteristics in field conditions. The research task was to obtain the data about the number of spring barley called “Ratnik” shoots and their productivity depending on the number of working volume converter’s lamps (1-6) and on the protectant’ norm percent (1-100). The experiments have been carried out and the data have been obtained for this purpose and the processing of these data has given the regression equation of the second order writing the process with the volumetric graphical interpretation. The rational parameter space of presowing treatment providing maximal germination and crop capacity of barley “Warrior” has been obtained on basis of the diagrams’ analysis. As the growth of germinating ability and crop capacity is observed when the number of working lamps is increased the double spreading at 6 working lamps should be recommended. The concentration of the protectant practically ceases to influent the crop capacity. According to the results of the research there has been drawn a conclusion that preliminary seeds treatment, for the purpose of plant diseases preventing, restrains the germination processes at the initial level. It happens in connection with conditions deterioration of moisture access to seeds which are covered with protectant film. Further processing of treated seeds by optical radiation promotes the growth of germinating ability and length of sprouts compensating negative effect of treatment
408 kb

STRUCTURAL ADJUSTMENT OF FEDERAL REQUIREMENTS FOR MEDICAL INFORMATION SYSTEMS AT THE REGIONAL LEVEL

abstract 1191605064 issue 119 pp. 889 – 925 31.05.2016 ru 430
On the performance of basic healthcare informatization in constituent entities of the Russian Federation in 2011-2013 the use of open source software became preemptive. The heads of medical organizations were recommended to coordinate medical information systems with the new federal requirements taking into account the regional features and preserve the priority of the open source. To solve this problem for the Krasnodar Region, the article proposes measures of program infrastructure modernization of medical and administrative activity automation within medical-diagnostic processes. It specifies the medical organization infrastructure. The aims and objectives of the existing system modernization are also determined there. The federal requirements for medical organizations’ information systems are adapted to the region peculiarities. The article has a practical significance since it can be used to prepare the technical specifications for modernization and/or maintenance of medical information systems in medical organizations and to support the educational process and scientific research works in the field of research and development of medical information technologies in Universities. It is addressed to the heads of government healthcare departments of constituent entities of the Russian Federation, the heads of medical organizations and to the healthcare informatization staff. It will be useful for the preparation of practical assignments for students to create the software technical documentation
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