Facultatea de Matematică şi Informatică / Faculty of Methematics and Informatics
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Item COLECTAREA MICROPARTICULELOR SOLIDE DIN ATMOSFERA PENTRU CERCETAREA PROCESELOR DE POLUARE A AERULUI(CEP USM, 2024) Chirița, Arcadi; Sprincean, Veaceslav; Paladi, FlorentinA new method for collecting solid particles polluting the atmosphere has been developed. The advantages of the proposed method make it possible to collect particulate matter from automobile exhaust polluting the atmosphere in real time using drones. Examination of collected particles can be done using various techniques without changing the shape, composition, or location of the particles. These studies show the possibility of microparticles collecting from the atmosphere and studying them using optical microscopy, atomic force microscopy, and microfluorescence.Item FOTOLUMINESCENȚA – METODĂ EXPERIMENTALĂ DE CARACTERIZARE A FACTORILOR DE MEDIU(CEP USM, 2024) Sprincean, Veaceslav; Chirița, Arcadi; Caraman, MihailThe excitation and photoluminescent emission mechanisms of the substrates in atomic, molecular, and solid state are analyzed. Experimental methods for the research of nanostructured material and composites based on GaS/GaSe layered semiconductors and β-Ga2O3 oxides doped with Eu and biological objects, leaves of fruit trees, and elements of clean fish (Leuciscus Squalius) are proposed. The influence of UVB radiation on the FL spectral structure of the studied materials was determined.