Browsing by Author "Kremenchuk Mykhailo Ostohradskyi National University"
Now showing 1 - 3 of 3
- Results Per Page
- Sort Options
Item Factographic data multidimensional search models(Lviv Polytechnic Publishing House, 2016) Tertyshnyi, V.; Kremenchuk Mykhailo Ostohradskyi National UniversityThe investigation objective is to simplify factographic data multidimensional search process by modifying latent-semantic analysis models and a corresponding logical linguistic model. Formal multidimensional semantic space model was created, the types of logical connections that can be used for a multidimensional factographic search were identified. Indicators and metrics for context clustering were chosen. Logical linguistic model for factographic data identification was formed.Item Improvement of the ecological safety of road transport in the use of alternative fuel and exhaust converters(Lviv Politechnic Publishing House, 2017-03-21) Shmandiy, Volodymyr; Kharlamova, Olena; Rigas, Tetyana; Kremenchuk Mykhailo Ostohradskyi National UniversityThe aim of the research was to reduce ecological danger caused by vehicles through the use of combined fuel and improved designs converters of exhaust gases. The use of obsolete structures of a catalytic analyzer on cars and the provision of periodic purging of catalytic units can significantly reduce soot emissions without making changes to the design of the engine. It was established that the use of a mixture of diesel fuel with biofuels (made involving waste) reduces the toxicity of exhaust gases by 30–35 % and saves hydrocarbons.Item Monitoring the state of environmental safety using phytoindication methods to ensure sustainable development of a technologically loaded city Kremenchuk(Видавництво Львівської політехніки, 2023-02-28) Kolesnik, Dmytro; Shmandiy, Volodymyr; Kharlamova, Olena; Bezdeneznych, Lilija; Rigas, Tetiana; Kremenchuk Mykhailo Ostohradskyi National UniversityEcological aspects of sustainable development have recently attracted the attention of scientists. The article is devoted to the control of ecological safety based on the study of the state of plantations in the city of Kremenchuk using the method of fluctuating leaf asymmetry as an indicator. The research was conducted in recreational, residential, transport and industrial areas. It was found that the condition of green areasin the city of Kremenchuk is heterogeneous and depends on the level of anthropogenic pressure. Plants growing near traffic routes and in industrial areas are much weaker than those growing in recreational areas.. The main indicator of plant condition in the study was the fluctuating asymmetry of the leaf blade of pyramidal poplar and hanging birch. It was found that the integral values of this indicator differ in different parts of the city with different intensities of anthropogenic impact, with the maximum values observed in industrial and traffic zones where there is an intense impact of pollutants. The results of the study confirm the unfavourable ecological condition of certain areas of the technologically loaded city of Kremenchuk, and also indicate the importance of environmental monitoring of pollution and development of measures to improve the condition of green areas. The results of the study can be used to improve the methodology and theory of ecological safety and urban environmental protection in order to preserve and restore plant populations in cities.