Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Robert Olejník"'
Publikováno v:
Polymers, Vol 12, Iss 11, p 2759 (2020)
The design of a unipole and a dual band F-shaped antenna was conducted to find the best parameters of prepared antenna. Antenna radiator part is fully made of polymer and nonmetal base composite. Thermoplastic polyurethane (PU) was chosen as a matrix
Externí odkaz:
https://doaj.org/article/13f1d649b67c45d19bf157bd7400bf23
Autor:
Jitka Kopecká, Miroslav Mrlík, Robert Olejník, Dušan Kopecký, Martin Vrňata, Jan Prokeš, Patrycja Bober, Zuzana Morávková, Miroslava Trchová, Jaroslav Stejskal
Publikováno v:
Sensors, Vol 16, Iss 11, p 1917 (2016)
Polypyrrole (PPy) in globular form and as nanotubes were prepared by the oxidation of pyrrole with iron(III) chloride in the absence and presence of methyl orange, respectively. They were subsequently converted to nitrogen-containing carbons at 650
Externí odkaz:
https://doaj.org/article/a0aae98ab5a546678f2637b9b2474366
Autor:
Romana Stepancikova, Robert Olejnik, Jiri Matyas, Milan Masar, Berenika Hausnerova, Petr Slobodian
Publikováno v:
Sensors, Vol 24, Iss 4, p 1275 (2024)
This study reports the possibility of using biaxially oriented polyethylene terephthalate (BOPET) plastic packaging to convert mechanical energy into electrical energy. Electricity is generated due to the piezoelectricity of BOPET. Electricity genera
Externí odkaz:
https://doaj.org/article/39eaf42cc6cd49128c9142bd8b891c78
Autor:
Rostislav Slobodian, Robert Olejnik, David John Dmonte, Jakub Sevcik, Jiri Matyas, Marek Jurca, R. Blessy Pricilla, Barbora Hanulikova, Petr Slobodian, Ivo Kuritka
Publikováno v:
Polymers, Vol 16, Iss 3, p 309 (2024)
A styrene-butadiene-styrene co-polymer matrix nanocomposite filled with graphene nanoplatelets was studied to prepare chemiresistive volatile organic compounds (VOCs) room temperature sensors with considerable response and selectivity. Nanofiller con
Externí odkaz:
https://doaj.org/article/d4a44b2833f04d5a8e65f6a51a84a292
Autor:
Ruhan Benlikaya, Petr Slobodian, Pavel Riha, Harinarayanan Puliyalil, Uros Cvelbar, Robert Olejnik
Publikováno v:
eXPRESS Polymer Letters, Vol 16, Iss 1, Pp 85-101 (2022)
Epoxy composites filled by multiwalled carbon nanotubes treated by inductively coupled ammonia plasma were prepared to improve composite intrinsic properties. The ammonia plasma treatment generated amine and oxygenated groups on the carbon nanotube s
Externí odkaz:
https://doaj.org/article/4562e10bbdbd471ab33de609bb341496
Autor:
Thaiskang Jamatia, Jiri Matyas, Robert Olejnik, Romana Danova, Jaroslav Maloch, David Skoda, Petr Slobodian, Ivo Kuritka
Publikováno v:
Polymers, Vol 15, Iss 7, p 1618 (2023)
A wearable and stretchable strain sensor with a gauge factor above 23 was prepared using a simple and effective technique. Conducting nanocomposite strands were prepared from styrene-b-(ethylene-co-butylene)-b-styrene triblock copolymer (SEBS) and ca
Externí odkaz:
https://doaj.org/article/d9943a59a1fe468a8942e063df018991
Autor:
Martin Adamek, Jiri Matyas, Anna Adamkova, Jiri Mlcek, Martin Buran, Martina Cernekova, Veronika Sevcikova, Magdalena Zvonkova, Petr Slobodian, Robert Olejnik
Publikováno v:
Sensors, Vol 22, Iss 5, p 1997 (2022)
This study focuses on the use of thermodynamic sensors (TDS) in baking, brewing, and yogurt production at home. Using thermodynamic sensors, a change in the temperature flow between the two sensor elements during fermentation was observed for the fin
Externí odkaz:
https://doaj.org/article/97259a1f8d1e410caa8866fce5f9534a
Publikováno v:
Nanomaterials, Vol 11, Iss 6, p 1529 (2021)
We assessed an effect of an embedded electro-conductive multiwalled carbon nanotube nanopaper in an epoxy matrix on the release of the frozen actuation force and the actuation torque in the carbon nanotube nanopaper/epoxy composite after heating abov
Externí odkaz:
https://doaj.org/article/ec83f86a2a354650a097d65d8ceea847
Publikováno v:
Sensors, Vol 21, Iss 1, p 298 (2021)
A novel microstrip resonant vapor sensor made from a conductive multiwalled carbon nanotubes/ethylene-octene copolymer composite, of which its sensing properties were distinctively altered by vapor polarity, was developed for the detection of organic
Externí odkaz:
https://doaj.org/article/6b2f8744d98e4a1c99f39656be421104
Publikováno v:
Polymers, Vol 12, Iss 6, p 1316 (2020)
Hybrid thermoelectric composites consisting of organic ethylene-octene-copolymer matrices (EOC) and embedded inorganic pristine and functionalized multiwalled carbon nanotubes, carbon nanofibers or organic polyaniline and polypyrrole particles were u
Externí odkaz:
https://doaj.org/article/b4f1460123134f948a292adb32efe7a9