The work considered the organization of security in distributed systems. The concepts of reliability, confidentiality and integrity are described as integral parts of security in computer systems. The distinguished types of security threats were illustrated. Three main approaches to organizing application protection are described.
13.12.2022 Volume 1 Issue 8 View more Download
The article gives definitions of a computer network. In particular, a network consisting of independent computers was considered. The difference between a computer network on the one hand and cable television and telephone communication on the other hand is described. The concept of flow has been proposed, which allows them to keep messages running continuously.
12.12.2022 Volume 1 Issue 8 View more Download
The article presents the results of studies conducted on the influence of the surface of heat exchange equipment on the accumulation of salt caused by aggressive substances in recycled water, reducing thermal conductivity with a residual content on the metal surface and suggests ways to solve this problem using salt deposition inhibitors. Positive results of the developed corrosion inhibitors and scaling units "GPUCH-2", "GPMCH-3" are presented, in which the efficiency of scaling inhibition in the waters of the Fergana oil refinery is within 94,37-95,0%.
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Traditionally, reading of energy meters is done by human operators who move from house to house collecting readings. This exercise requires huge labor operator numbers and a lot of time to achieve complete reading of meters in a particular area. This paper endeavors to do away with this problem by using a telemetering system. With this system, power can be measured from a remote site. To achieve this, readings from an energy meter on site are processed by a microcontroller device that then sends the energy consumption information to a Global System Mobile(GSM) module. The GSM module then sends this information using microwaves to a particular mobile subscriber who receives it in the form of an Short Message Service(SMS). The reading is also transmitted to a web based telemetering system through a server. In the remote site, a remote computer which can access the internet is able to obtain data from the server through the internet. The microcontroller is developed in such a way that it achieves communication between the energy meter and the particular server using Transmission Control Protocol(TCP) protocol. Software programs are also developed to facilitate transfer of data to the user at remote site. With the web based telemetering system connected to the internet, electrical energy measurements can be accessed globally. The efficiency of the transmission channel is important for the success of both SMS and web based telemetering systems
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The article proposes a method for determining the plane of the average slope of a certain section of the relief, called the plane of the quarter or a local section of the relief, on the basis of which the geometric characteristics of the relief are determined, such as the direction of the slope, the angle of inclination.
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In this paper, 2 options for the design of an overpass with a beam-cut and a beam-continuous static scheme are considered. Comparison of overpass options was carried out according to scientifically substantiated technical, economic and aesthetic indicators based on the theory of correlation, and in accordance with which an overpass of a beam-continuous (monolithic) scheme was chosen.
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In this article, cotton is used in the technological transition in the production of yarn with a linear density of Nm = 54/1 (Ne = 32/1) and Nm = 27/1 (Ne = 16/1) on cotton spinning equipment used at PAPFEN LLC. the elongation property of the fiber ( Elg %) and the amount of short fibers (SF%) less than 12.7mm in length and other quality parameters were determined using a measuring instrument type HVI-1000 installed in the enterprise testing laboratory. The results of the research were analyzed and measures to improve the quality of products were proposed.
10.12.2022 Volume 1 Issue 8 View more Download
In this article, the possibilities of production and sale of the enterprise, their socio-economic, technical and technological aspects, determination of norms of use of labor resources, study of competitiveness of goods produced by various enterprises, as well as organization of rational sale of their goods are considered.
10.12.2022 Volume 1 Issue 8 View more Download
The article provides complete information about the Fock space and some operators identified in it. In order to explain the topic to students and make it easier for them to understand, recommendations are given on the scheme of covering the topic and the presentation of terms from easy to complex, and a number of typical examples are shown.
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The TEITA compounds were characterized using the IR spectrum. The inhibitory effect of 2,4,6-triethanolimine-1,3,5-triazine (TEITA) on the dissolution of carbon steel St20 in 0.5 M H2SO4 solution was shown using various methods. Corrosion parameters obtained from the methods used confirm that the inhibitory ability of the TEITA compounds increased with increasing concentration of the TEITA compounds, decreasing temperature and surface properties, eg surface tension, interfacial tension.
10.12.2022 Volume 1 Issue 8 View more Download
SCIENCE & INNOVATION