The article provides a comparative analysis of classical and quantum statistics. The general properties and differences between the statistics of Maxwell and the statistics of Bose-Einstein, Fermi-Dirac from the methodological point of view are revealed
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Ion exchangers, ion exchangers, ion-exchange sorbents are polymeric or inorganic substances containing ionogenic and (or) complex groups capable of exchanging ions when exposed to electrolyte solutions. In the work, the sorption properties of permutite with respect to waste water such as petroleum products, phosphates, and heavy metal ions were studied: Fe2+, Cu2+, Zn2+, Al3+, Mn2+, Cr2+, Cd2+ and Pb2+. The obtained product can be used for water softening in the production of electrolytes of different composition, it can be successfully used in water purification of high-pressure steam boilers, at the same time, effective softening of water and a decrease in general mineralization have a positive effect on increasing the efficiency of steam devices. According to the conducted experiments, it was found that samples of rocks containing permutite of the clinoptilolite type have significant sorption capacity for heavy metal ions. The efficiency of cleaning with clinoptilolite at the initial concentration of 226Ra30 Bk/l ion was found to be 96%. Therefore, it is important to find ways to solve the problem of finding and studying the possibility of using cheap and effective natural materials for water purification.
21.05.2023 Volume 2 Issue 5 View more Download
One of the world's biggest obsessions is cyberattacks on electric power systems. The power system is a critical infrastructure that supplies electricity to homes, businesses, and industries. Any disruption to this system can seriously affect the economy and people's daily lives. Finding the system's vulnerability points may be the solution to preventing cyberattacks. There are numerous signs that a cyberattack has occurred. The study highlights the importance of finding vulnerability points in power systems to prevent cyberattacks and proposes a method based on network planning indicators to reduce the number of cyberattacks by implementing microgrids. At first, this paper uses the Newton-Raphson algorithm to analyse IEEE 33-bus network planning indicators to identify vulnerable points in the power system. Then, it applies microgrids to various system components to show that implementing microgrids can reduce the number of cyberattacks on the power system and increase resilience to cyber threats
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Analysis of the available data shows that the amount of material damage increases as a secondary factor due to damage to metal structures of buildings and structures in man-made emergencies related to fire. The treatment of metal structures of buildings and structures with fire-resistant coatings is one of the urgent measures to reduce the amount of damage observed in such cases.
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This article provides information on synthesis methods of coordination compounds with mixed ligands, complex compounds, structural formulas of synthesized coordination compounds, synthesis of quinazolon-4 and its potassium and sodium salts.
21.05.2023 Volume 2 Issue 5 View more Download
In this article, distribution of goods, promotion of sales, establishment of contacts, delivery of goods in accordance with consumer demand. negotiating, organizing the movement of goods, financing and risk-taking, and distribution channels in their length, width and number of steps are considered.
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This article talks about tourism, museum tourism, the stages of its development, the role of museums in the development of tourism, their importance, the great achievements of world museums in this field, the role of museum tourism in the state economy. important and is a guide for those interested in this direction
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In this article, in the field experiments carried out in the conditions of the typical gray soils subjected to irrigation erosion of Samarkand region, the influence of the level of soil leaching and mineral fertilizers (N90P63K45 and N60P42K30) on the growth and duration of the development phases of beans and mash crops planted as repeated crops and the obtained data were determined. analysis is described.
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SCIENCE & INNOVATION