U radu će biti izvršena analiza i poređenje pokazatelja pouzdanosti dve vrste uređaja specijalne ... more U radu će biti izvršena analiza i poređenje pokazatelja pouzdanosti dve vrste uređaja specijalne namene koji se koriste u radio-relejnim sistemima. Na osnovu rezultata sprovedene analize, stečenog iskustva iz domena najvišeg nivoa održavanja uređaja, predložiće se modernizacija postojećeg analognog radio-frekventnog filtera sa odgovarajućim digitalnim filterom. Predložena modernizacija unapređuje tehnološki proces održavanja uređaja, poboljšava karakteristike pogodnosti za održavanjem, povećava pouzdanost u radu uređaja uz znatno smanjenje troškova održavanja uređaja.
Due to the high flammability of the paper, its use is restricted in advanced applications. In thi... more Due to the high flammability of the paper, its use is restricted in advanced applications. In this study, UV‐cured paper coating formulations containing silica nanoparticles and phosphinoxide were prepared and coated on paper surface. Flammability, wettability, and printability properties were investigated. For this purpose, the surface of the silica nanoparticles was first functionalized with hydroxyethyl methacrylate (HEMA) ─OH. The hydroxylated silica nanoparticles were then modified with isocyanatoethyl methacrylate. Bis fluoro phenylphosphine oxide was synthesized by Grignard reaction elsewhere and OH modified in basic medium. Acrylate groups were added to BHPPO with isocyanatoethyl methacrylate to make it suitable for UV‐curing formulation. The chemical structures of the obtained substances were illuminated by ATR‐FTIR. UV‐cured paper coating formulations containing acrylated silica, acrylated phosphinoxide, and mixtures thereof were prepared and coated on the paper surface. C...
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Papers by Sasa Petrovic