Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Jiri Majzner"'
Autor:
Petr Sedlak, Pavel Kaspar, Dinara Sobola, Adam Gajdos, Jiri Majzner, Vlasta Sedlakova, Petr Kubersky
Publikováno v:
Polymers; Volume 14; Issue 21; Pages: 4758
Polymers. 2022, vol. 14, issue 21, p. 1-17.
Polymers. 2022, vol. 14, issue 21, p. 1-17.
Solid polymer electrolytes show their potential to partially replace conventional electrolytes in electrochemical devices. The solvent evaporation rate represents one of many options for modifying the electrode–electrolyte interface by affecting th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::889b7f2dd3d51847a7551a2424183a16
http://hdl.handle.net/11025/50953
http://hdl.handle.net/11025/50953
Autor:
Petr Sedlak, R. Macku, Adam Gajdoš, Vlasta Sedlakova, Jiri Majzner, Petr Kubersky, Vladimir Holcman
Publikováno v:
Scientific Reports
Scientific Reports. 2020, vol. 10, issue 1, p. 1-12.
Scientific Reports. 2020, vol. 10, issue 1, p. 1-12.
The experimental study deals with the investigation of the effect of diverse crystallinity of imidazolium ionic-liquid-based SPE on conductivity and current fluctuations. The experimental study was carried out on samples consisting of [EMIM][TFSI] as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db99314ef026db19dad6b0d7150dd0a7
http://hdl.handle.net/11025/42958
http://hdl.handle.net/11025/42958
Autor:
Petr Sedlak, Pavel Škarvada, Jiri Majzner, Ales Hamacek, Josef Sikula, Stanislav Nespurek, Petr Kubersky, Vlasta Sedlakova
Publikováno v:
Metrology and Measurement Systems, Vol 23, Iss 4, Pp 531-543 (2016)
Electrochemical amperometric gas sensors represent a well-established and versatile type of devices with unique features: good sensitivity and stability, short response/recovery times, and low power consumption. These sensors operate at room temperat
Autor:
Arkadiusz Szewczyk, Josef Sikula, Vlasta Sedlakova, Tomas Kuparowitz, Jiri Majzner, Petr Sedlak
Publikováno v:
Metrology and Measurement Systems, Vol 23, Iss 3, Pp 403-411 (2016)
Electronic Double-Layer Capacitors (EDLC), called Supercapacitors (SC), are electronic devices that are capable to store a relatively high amount of energy in a small volume comparing to other types of capacitors. They are composed of an activated ca
Autor:
Tomas Kuparowitz, Petr Sedlak, Jiri Majzner, Vlasta Sedlakova, Brandon Buergler, Josef Sikula, Petr Vasina
Publikováno v:
Metrology and Measurement Systems, Vol 23, Iss 3, Pp 345-358 (2016)
Degradation of Supercapacitors (SC) is quantified by accelerated ageing tests. Energy cycling tests and calendar life tests are used since they address the real operating modes. The periodic characterization is used to analyse evolution of the SC par
Autor:
Vlasta Sedlakova, Tomas Kuparowitz, Tomáš Syrový, Lubomír Grmela, Josef Sikula, Petr Kuberský, Petr Sedlak, Jiri Majzner, S. Nešpůrek, Ales Hamacek
Publikováno v:
Chemical Physics. 456:111-117
Nitrogen dioxide represents threat to human health even at low concentrations. A new amperometric sensor with three-electrode topology (platinum/solid polymer electrolytes/carbon) was developed to overcome limitations of standard solid NO 2 sensors b
Autor:
Tomas Kuparowitz, Petr Vasina, Vlasta Sedlakova, Jiri Majzner, Brandon Buergler, Petr Sedlak, Josef Sikula
Publikováno v:
Journal of Power Sources. 286:58-65
A new method for the determination of parameters for an equivalent electrical circuit model of supercapacitors is proposed. The method is based on the evaluation of the time dependence of voltage measured on the supercapacitor terminals after its cha
Publikováno v:
Metrology and Measurement Systems. 20:635-644
Noise spectroscopy and I-V characteristic non-linearity measurement were applied as diagnostic tools in order to characterize the volume and contact quality of positive temperature coefficient (PTC) chip sensors and to predict possible contact failur
Autor:
Petr Sedlak, Darko Belavic, Josef Sikula, Jiri Majzner, Marina Santo Zarnik, Vlasta Sedlakova
Publikováno v:
Sensors and Actuators A: Physical. 199:334-343
In this paper we present the results of an investigation of the long-term stability of piezoresistive LTCC-based pressure sensors with the main emphasis on the effects of accelerated ageing. Noise spectroscopy was considered as a possible method for
Autor:
Josef Sikula, Dusan Kopecky, Filip Vyslouzil, Martin Vrnata, Peter Händel, Petr Sedlak, Premysl Fitl, Jiri Majzner
Publikováno v:
Sensors and Actuators B: Chemical. :264-268
There are several mechanisms that are related to the fluctuation phenomena in QCM. The aim of our research is to study the sensitivity and the influence of different kinds of noise on sensor resolution. Our experiments are performed on sensors with a