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Information × Registration Number 0224U032709, (0124U003606) , R & D reports Title Portable Software and Hardware System for Rapid Determination of Toxic Substances in Water Bodies Contaminated as a Result of Military Operations popup.stage_title Розроблення моделей і методів інформаційної технології швидкого вимірювання концетрацій токсичних елементів у возних об'єктах довкілля. Head Stepashko Volodymyr S., д.т.н. Registration Date 02-12-2024 Organization International Research and Training Center for Information Technologies and Systems NAS and MES of Ukraine popup.description1 To develop an intelligent information technology for operational assessment of the quality of drinking water and water bodies in field conditions using pulse methods of inversion chronopotentiometry and sensors made of noble metals and creation of an experimental hardware and software complex for rapid identification concentrations of toxic elements entering the environment due to military actions popup.description2  A mathematical model of a multicomponent analytical signal of electrochemical measurement of chemical element concentrations has been developed based on the application of inductive modeling methods (GMDH) and the theory of inversion chronopotentiometry, which allow expressing the integral multicomponent signal of analytical measurement as a sum of individual components and identifying chemical elements. The problem of constructing a baseline for a multicomponent signal of inversion chronopotentiometry intensity, which affects the accuracy of determining the concentrations of chemical elements, has been studied. This approach is implemented in the author's computer programs by the following modeling methods: polynomial modeling of a logarithmic differential signal with exponential recovery; based on the multi-stage combinatorial-selection algorithm MULTI-R; based on the iterative-genetic algorithm MGDH of the neural network type. The prob lem of constructing a mathematical model for determining the additive mass is investigated and a method for comparing the analytical signal with reference signals is developed. Constructing a model of the additive mass consists in combining statistical data on the concentration time, measured inversion time and the obtained concentrations of the chemical element. For the first time, exponential models have been obtained that allow one to estimate the order of magnitude of the concentration of a chemical element based on one measurement of the inversion time in the analytical signal. This allows one to preliminarily estimate the concentration and reduce the volume of reference signals for comparison. In accordance with the work plan, experimental laboratory studies and selection of electrochemical parameters for measuring the concentrations of lead, copper, cadmium, zinc and phosphorus in water on electrodes made of noble metals were carried out. Product Description popup.authors Yefimenko Serhii M. Halimova Valentyna M. Moroz Olha H Savchenko-Syniakova Yevheniia A. Stepashko Volodymyr S. Surovtshev Ihor V. popup.nrat_date 2024-12-02 Close