https://sci.ldubgd.edu.ua/jspui/handle/123456789/8937 Завідувач кафедри, доктор сільськогосподарських наук, професор 2026-04-12T07:58:36Z https://sci.ldubgd.edu.ua/jspui/handle/123456789/17263 Title: Термометр для вимірювання температури в електромагнітному полі високої частоти : пат. 130327 Authors: Кузик, Андрій Данилович; Степова, Катерина Вікторівна; Конанець, Роман Миколайович; Федів, Ірина Сергіївна 2026-01-01T00:00:00Z https://sci.ldubgd.edu.ua/jspui/handle/123456789/17220 Title: Mathematical Modeling of the Development and Extinguishing of Forest Fires in Radionuclear Contaminated Areas Authors: Кузик, Андрій Данилович; Лагно, Денис Вікторович; Попович, Василь Васильович; Іляшевич Abstract: Fires in radioactively contaminated forests, particularly in the Chernobyl exclusion zone, pose a particular danger. During such fires, radionuclides migrate, depending on the level of radioactivity and wind speed. To assess the effectiveness of decisions made regarding forest firefighting, it is necessary to conduct mathematical modeling of forest fire spread processes and their extinguishing, which can be used to estimate the time required to complete the task as a criterion of effectiveness, taking into account the available firefighting forces and means and their tactical and technical capabilities. This will prevent the spread of forest fires and the volume of radionuclide emissions. Modeling was carried out by mathematical methods, developing formulas that describe the spread of the edge of a forest fire in the form of an ellipse. During the modeling of fire development and extinguishing processes, the area of the fire and its change over time were used as criteria, taking into account the spread and extinguishing. The modeling assumed the homogeneity of the properties of the layer of forest combustible material and the presence of a constant wind speed and direction. In this case, the fire area will be limited by an ellipse. The suggested mathematical model of forest fire development and extinguishing is simple and allows obtaining the contour equation and forest fire area before and after extinguishing, assuming constant wind direction and speed and taking into account management decisions regarding the number of forces and means and their placement around the fire perimeter. 2025-01-01T00:00:00Z https://sci.ldubgd.edu.ua/jspui/handle/123456789/17219 Title: Przyczyny pożarów i ocena ryzyka pożarowego hoteli Authors: Коваль, Роман; Ємельяненко, Сергій Олександрович; Кузик, Андрій Данилович Abstract: Fire safety management in hotels is a critical area in today’s environment. Assessment of fire risk in hotels requires a comprehensive approach that includes not only the development and implementation of effective fire detection and extinguishing systems, but also the organization of training for staff and guests in the event of an emergency. In this context, fire risk analysis and fire safety management in hotels become extremely important to ensure the safety of all people staying on the hotel premises. The main idea of the dissertation is to identify the dominant fire risk factors in hotels in Ukraine, which contributes to the classification and identification of patterns of their impact on the state of fire safety in hotels. Based on cluster analysis, a close relationship was established between the number of fires caused by malfunctioning electrical appliances, depending on their type, at the level of 0.98-0.88, and the degree of fire resistance and the number of hotel storeys. An integral risk indicator was proposed, which considers three types of risk and allows us to assess the level of safety of the hotel building. 2025-01-01T00:00:00Z https://sci.ldubgd.edu.ua/jspui/handle/123456789/17218 Title: Analysis of Fire Causes and Assessment of Fire Risk (Using the Example of Hotels) Authors: Ємельяненко, Сергій Олександрович; Коваль, Роман; Кузик, Андрій Данилович; Коваль, Ігор Abstract: Fire safety management in hotels is a critically important area in today's conditions. Assessing fire risks in hotels requires a comprehensive approach, which includes not only the development and implementation of effective fire detection and extinguishing systems, but also the organisation of training for staff and guests in actions in case of danger. In this context, the analysis of fire risks and fire safety management in hotels becomes extremely important to ensure the safety of all those present in hotel premises. The main idea of the article is to identify the dominant factors of fire risks in hotels in Ukraine, which contribute to the classification and identification of patterns of their impact on the state of fire safety in hotels. Based on cluster analysis, a close relationship was established between the number of fires that occurred due to malfunctions of electrical appliances depending on their type at the level of 0.98–0.88, and the degree of fire resistance and number of floors of hotels. An integral risk indicator was proposed, which takes into account three types of risks and makes it possible to assess the level of security of the hotel building 2025-12-01T00:00:00Z