Publikace Fakulty elektrotechniky a informatiky / Publications of Faculty of Electrical Engineering and Computer Science (FEI)
Permanent URI for this collectionhttp://hdl.handle.net/10084/151874
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Item type: Item , Active microrobots for dual removal of biofilms via chemical and physical mechanisms(American Chemical Society, 2025) Peng, Xia; Oral, Cagatay M.; Urso, Mario; Ussia, Martina; Pumera, MartinBacterial biofilms are complex multicellular communities that adhere firmly to solid surfaces. They are widely recognized as major threats to human health, contributing to issues such as persistent infections on medical implants and severe contamination in drinking water systems. As a potential treatment for biofilms, this work proposes two strategies: (i) light-driven ZnFe2O4 (ZFO)/Pt microrobots for photodegradation of biofilms and (ii) magnetically driven ZFO microrobots for mechanical removal of biofilms from surfaces. Magnetically driven ZFO microrobots were realized by synthesizing ZFO microspheres through a low-cost and large-scale hydrothermal synthesis, followed by a calcination process. Then, a Pt layer was deposited on the surface of the ZFO microspheres to break their symmetry, resulting in self-propelled light-driven Janus ZFO/Pt microrobots. Light-driven ZFO/Pt microrobots exhibited active locomotion under UV light irradiation and controllable motion in terms of “stop and go” features. Magnetically driven ZFO microrobots were capable of maneuvering precisely when subjected to an external rotating magnetic field. These microrobots could eliminate Gram-negative Escherichia coli (E. coli) biofilms through photogenerated reactive oxygen species (ROS)-related antibacterial properties in combination with their light-powered active locomotion, accelerating the mass transfer to remove biofilms more effectively in water. Moreover, the actuation of magnetically driven ZFO microrobots allowed for the physical disruption of biofilms, which represents a reliable alternative to photocatalysis for the removal of strongly anchored biofilms in confined spaces. With their versatile characteristics, the envisioned microrobots highlight a significant potential for biofilm removal with high efficacy in both open and confined spaces, such as the pipelines of industrial plants.Item type: Item , Emulation of quantum key distribution networks(IEEE, 2025) Mehic, Miralem; Dervisevic, Emir; Burdiak, Patrik; Lipovac, Vlatko; Fazio, Peppino; Vozňák, MiroslavNetwork emulators play an important role in testing network systems, applications, and protocols. Emulators bridge the gap between simulation setups that lack realism in results and real-world trials that are accurate but often expensive, non-reproducible, and uncontrollable. This article presents an extended model of the Quantum Key Distribution Network Simulation Module (QKDNetSim) with a model catalog of QKD components and functionalities. We explore emulations of point-to-point connections in QKD networks and the interaction of essential compo nents within QKD nodes. The presented tool will undoubtedly spur future development and teach ing, and it is critical for testing novel applications and protocols applied to QKD networks.Item type: Item , On the Effect of Coverage Range Extent on Next-Cell Prediction Error for Vehicular Mobility in 5G/6G Networks: A Novel Theoretic Model(IEEE, 2025) Fazio, PeppinoOver the last decade, 5G and forthcoming 6G archi tectures have undergone extensive standardization and prepara tions for the future. The literature in this field is saturated with studies on predicting mobile trajectories in cellular systems and guaranteeing quality of service and an adequate user experience in these environments. The current study aims to bridge mobility prediction and 5G/6Gpredictive approaches and demonstrate that the intrinsic paradigm of femto-cell and nano-cell deployment (based on very small radio coverage radii) for 5G provides the means to obtain more accurate time series data on user mobility and thus enable predictive models (e.g., machine learning) as suit able technologies for integration with 6G standards. This field is therefore an important avenue of research.Item type: Item , Setkání vysokoškolských pracovišť v rámci konference Trendy v biomedicínském inženýrství 2025 a řešitelů projektu LERCO(Vysoká škola báňská - Technická univerzita Ostrava, 2025) kolektiv autorů; Penhaker, Marek; Augustynek, MartinKonference je zaměřena na diskuzi aktuálních trendů ve vývoji vědy, výzkumu a výuky v oblasti biomedicínského inženýrství v České a Slovenské republice. Navazuje na dlouhodobou tradici pravidelných setkávání, která se konají ve dvouletém cyklu a představují jedinečnou příležitost pro sdílení zkušeností a poznatků mezi pedagogickými i vědeckými pracovníky oboru. Hlavním cílem letošního ročníku je propojit řešitelské týmy s potenciálními uživateli výsledků projektu LERCO a vytvořit platformu pro odbornou diskuzi mezi výzkumnými institucemi a aplikační sférou. Konference tak podporuje nejen výměnu vědeckých informací, ale i vznik nových spoluprací, které mohou přispět k rychlejšímu přenosu poznatků do praxe a k rozvoji biomedicínského inženýrství v širším kontextu.Item type: Item , WOFEX 2021 : 19th annual workshop, Ostrava, 1th September 2021 : proceedings of papers(Vysoká škola báňská - Technická univerzita Ostrava, 2021) Krátký, Michal; Dvorský, Jiří; Moravec, PavelThe workshop WOFEX 2021 (PhD workshop of Faculty of Electrical Engineer-ing and Computer Science) was held on September 1st September 2021 at the VSB – Technical University of Ostrava. The workshop offers an opportunity for students to meet and share their research experiences, to discover commonalities in research and studentship, and to foster a collaborative environment for joint problem solving. PhD students are encouraged to attend in order to ensure a broad, unconfined discussion. In that view, this workshop is intended for students and researchers of this faculty offering opportunities to meet new colleagues.Item type: Item , WOFEX 2020 : 18th annual workshop, Ostrava, 8th September 2020 : proceedings of papers(Vysoká škola báňská - Technická univerzita Ostrava, 2020) Krátký, Michal; Dvorský, Jiří; Moravec, PavelItem type: Item , Magnetická smyčková anténa : pokaždé trochu jinak(EDUCA TV o.p.s., 2015) Burger, Oldřich; Dvorský, MarekKniha shrnuje teoretický návrh elektricky malé smyčkové antény (Magnetic Loop Antenna - MLA). V druhé (praktické) části popisuje několik variant a variací této antény. Další kapitola je věnována zpětné vazbě uživatelů tohoto typu antény.