Persons

The kinetic model of the surface molecular contamination, formed as a result of two-dimensional nucleation, has been investigated. The solutions to describe the structural characteristics of the growing pollution through a system of physical constants and the parameters of the growth process in the clean room technology industry have been obtained.

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In order to avoid the negative impacts of ecology, the need in the systems, monitoring the states of the ecology, based on the Internet of Things technology arises. In the work the imitation model of the automated system of environment using the LoRa technology has been presented. The imitation model represents the multifunctional hardware and software complex of technical means for the exchange, collection, processing, storage and transmission of the data, reflecting a wide range of the meteorological parameters. Using the results of the imitation simulation the influence of the ratio of the heights of the antennas of the base stations and measuring posts, where the sensors, the structurization module of the received data and the data transmission module operating according to the LoRa standard are located, has been revealed. The dependence of the packet delivery rate from the measuring stations to the base stations and their quantity have been displayed. The minimum interval before re-sending a packet without collisions has been detected to ensure the verification, the uninterrupted data collection and the transmission, taking into account the use of a minimum of computing resources. This solution has been considered for further integration into the city project «Smart Moscow».

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To assess the thermodynamically stable forms of the substance depending on the potential of its redox pairs and the activity level of the medium the method of constructing the Purbe diagram is used. In the work the method of constructing the Purbaix diagram using the Microsoft Excel software has been proposed. The given technique is suitable for use, has sufficient accuracy, permits to perform the diagram construction in absence of the specialized programs, accelerates the process of the diagram construction. The flexibility of calculations is provided due to the fact that a user can add new dependences and functions and to obtain the three-dimensional diagrams.

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