Abstract
The paper describes a mathematical model of a control system for the size population of microorganisms using modulated microwave radiation of non-thermal power.The model is implemented in the dynamic environment MATLAB+Simulink, the areas of optimal values of the impact parameters are found. An algorithm for automatic tuning of the modulation frequency during the experiment has been developed.The efficiency of the algorithmis shown with the help of computer simulation.
Highlights
IntroductionThe tasks of controlling the size of the population of unicellular microorganisms using external influences consist either in increasing the population (for example, accelerating the growth of beneficial microorganisms), or in decreasing the population up to complete destruction (combating pathogenic bacteria, tumor cells)
The tasks of controlling the size of the population of unicellular microorganisms using external influences consist either in increasing the population, or in decreasing the population up to complete destruction
This paper considers the use of microwave radiation of non-thermal power to solve the second problem
Summary
The tasks of controlling the size of the population of unicellular microorganisms using external influences consist either in increasing the population (for example, accelerating the growth of beneficial microorganisms), or in decreasing the population up to complete destruction (combating pathogenic bacteria, tumor cells). In the research article [Ikhlov, 2020], the resonant nature of this effect is noted, due to the absorption of radiation energy by DNA molecules of cells at certain frequencies equal to the natural frequencies of torsional vibrations of molecules. The effectiveness of the action of an alternating field of a given frequency is proportional to the magnitude of absorption at a given frequency. To improve efficiency under conditions of uncertainty of the resonant frequency, it is proposed to use modulation of the fundamental frequency of the action at a constant radiation power. The advantages of using optimized modulated radiation under conditions of uncertainty of the required frequency of exposure are estimated
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