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Item Hybrid steel–composite cross-arm for distribution power lines(Elsevier, 2023) Zemčík, Hana; Kroupa, Tomáš; Vaňková, Tereza; Zemčík, Robert; Pihera, Josef; Prosr, Pavel; Kadlec, Petr; Šroubová, Lenka; Müllerová, Eva; Martínek, Petr; Pavlica, Richard; Komárek, Josef; Friedl, Jan; Polanský, Radek
Item Selective methane chemiresistive detection using MWCNTs array decorated by metal organic framework layer(Elsevier, 2023) Zabelin, Denis; Zabelina, Anna; Guselnikova, Olga; Miliutina, Elena; Kolská, Zdeňka; Štulík, Jiří; Polanský, Radek; Elashnikov, Roman; Kalachyova, Evgeniia; Švorčík, Václav; Lyutakov, OleksiyItem Novel SMD Component and Module Interconnection and Encapsulation Technique for Textile Substrates Using 3D Printed Polymer Materials(MDPI, 2023) Kalaš, David; Soukup, Radek; Řeboun, Jan; Radouchová, Michaela; Rous, Pavel; Hamáček, Aleš
Item Development of the diagnostic tools for the COMPASS-U tokamak and plans for the first plasma(Elsevier, 2023) Weinzettl, Vladimír; Bílková, Petra; Ďuran, Ivan; Hron, Martin; Pánek, Radomír; Markovič, Tomáš; Varavin, Mykyta; Cavalier, Jordan; Kovařík, Karel; Torres, André; Matveeva, Ekaterina; Böhm, Petr; Ficker, Ondřej; Horáček, Jan; Čeřovský, Jaroslav; Zajac, Jaromír; Adámek, Jiří; Dimitrova, Miglena; Imríšek, Martin; Sos, Miroslav; Tomešová, Eva; Vondráček, Petr; Mikszuta-Michalik, Katarzyna; Svoboda, Jakub; Naydenkova, Diana; Bogár, Klára; Caloud, Jakub; Ivanov, Vladislav; Lukeš, Samuel; Podolník, Aleš; Bogár, Ondřej; Entler, Slavomír; Havránek, Aleš; Preinhaelter, Josef; Jaulmes, Fabien; Dejarnac, Renaud; Balner, Vojtěch; Veselovský, Viktor; Bělina, Pavel; Král, Miroslav; Gerardin, Jonathan; Vlček, Jiří; Tadros, Momtaz; Turjanica, Pavel; Kindl, Vladimír; Řeboun, Jan; Rowan, William; Houshmandyar, Saeid; Scholz, Marek; Bielecki, Jakub; Makowski, Dariusz; Chernyshova, Maryna; Cipciar, DarioItem Antimony Hall sensor testing at ITER and DEMO relevant temperatures(Elsevier, 2023) Entler, Slavomír; Ďuran, Ivan; Simonovský, M.; Řeboun, Jan; Turjanica, Pavel; Šobáň, Zbyněk; Sládek, P.; Viererbl, L.Item Asset Management of Large Electric Machines through Monitoring of Electric Insulation(Budapest Tech Polytechnical Institution, 2022) Trnka, Pavel; Trnková, MagdalenaItem Electrical Contact Resistance of Large-Area Graphene on Pre-Patterned Cu and Au Electrodes(MDPI, 2022) Blecha, Tomáš; Vlčková Živcová, Zuzana; Farjana, Sonia; Mergl, Martin; Volochanskyi, Oleksandr; Bodnár, Michal; Rous, Pavel; Mizohata, Kenichiro; Kalbáč, Martin; Frank, OtakarContact resistance between electrically connected parts of electronic elements can negatively affect their resulting properties and parameters. The contact resistance is influenced by the physicochemical properties of the connected elements and, in most cases, the lowest possible value is required. The issue of contact resistance is also addressed in connection with the increasingly frequently used carbon allotropes. This work aimed to determine the factors that influence contact resistance between graphene prepared by chemical vapour deposition and pre-patterned Cu and Au electrodes onto which graphene is subsequently transferred. It was found that electrode surface treatment methods affect the resistance between Cu and graphene, where contact resistance varied greatly, with an average of 1.25 ± 1.54 kΩ, whereas for the Au electrodes, the deposition techniques did not influence the resulting contact resistance, which decreased by almost two orders of magnitude compared with the Cu electrodes, to 0.03 ± 0.01 kΩ.Item Metodika DOE a její uplatnění v praxi – část I.(Úřad pro technickou normalizaci, metrologii a státní zkušebnictví, 2022) Tůmová, Olga; Tůma, FrantišekMetodika DOE (Design of Experiments) je strategie pro plánování experimentů takovým způsobem, že lze účinně a ekonomicky dosáhnout žádoucích závěrů. Experiment je soubor pokusů, kterými vyšetřujeme sledovaný objekt. Vlastnosti objektu mohou být ovlivněny mnoha veličinami i vedlejšími vlivy, které do procesu vstupují. Při návrhu experimentu je nutné jednotlivé veličiny identifikovat a nastavit, popřípadě podle potřeby i během experimentu jejich úrovně korigovat.Item Metodika DOE a její uplatnění v praxi – část II.(Úřad pro technickou normalizaci, metrologii a státní zkušebnictví, 2022) Tůmová, Olga; Tůma, FrantišekMetodika DOE (Design of Experiments) je strategie pro plánování experimentů takovým způsobem, že lze účinně a ekonomicky dosáhnout žádoucích závěrů. Experiment je soubor pokusů, kterými vyšetřujeme sledovaný objekt. Vlastnosti objektu mohou být ovlivněny mnoha veličinami i vedlejšími vlivy, které do procesu vstupují. Při návrhu experimentu je nutné jednotlivé veličiny identifikovat a nastavit, popřípadě podle potřeby i během experimentu jejich úrovně korigovat.Item Fuzzy logika a její využití v technice(Úřad pro technickou normalizaci, metrologii a státní zkušebnictví, 2022) Tůma, František; Tůmová, OlgaFuzzy logika nachází v technické praxi uplatnění v situacích, kdy zkoumaný problém nelze přesně matematicky popsat, a přesto musíme tento problém inženýrsky uchopit a uspokojivě řešit. S využitím teorie fuzzy množin popisuje fuzzy logika vágně charakterizované problémy a pokrývá tak realitu v její nepřesnosti a neurčitosti.Item Solvent Evaporation Rate as a Tool for Tuning the Performance of a Solid Polymer Electrolyte Gas Sensor(MDPI, 2022) Sedlák, Petr; Kašpar, Pavel; Sobola, Dinara; Gajdoš, Adam; Majzner, Jiří; Sedláková, Vlasta; Kuberský, PetrItem Study of Internal Stress in Conductive and Dielectric Thick Films(MDPI, 2022) Hlína, Jiří; Řeboun, Jan; Janda, Martin; Hamáček, AlešItem Bioresonance According to Paul Schmidt (BaPS) and its Beneficial Effects on the Integrity of the Intestinal Barrier in vitro(PAST Publishers, 2022) Dartsch, Peter C.; Heimes, Dietmar PaulItem Interconnecting embroidered hybrid conductive yarns by ultrasonic plastic welding for e-textiles(Sage, 2022) Dils, Christian; Kalaš, David; Řeboun, Jan; Suchý, Stanislav; Soukup, Radek; Moravcová, Daniela; Krshiwoblozki, Malte; Schneider-Ramelow, MartinItem Study of low-temperature interconnection techniques for instant assembly of electronics on stretchable e-textile ribbons(Sage, 2022) Hirman, Martin; Navrátil, Jiří; Steiner, František; Řeboun, Jan; Soukup, Radek; Hamáček, AlešItem Deep Learning Methods for Speed Estimation of Bipedal Motion from Wearable IMU Sensors(MDPI, 2022) Justa, Josef; Šmídl, Václav; Hamáček, AlešItem Dielectric, structural and mechanical properties of thermally aged biaxially oriented polymeric substrates for flexible electronics(Elsevier, 2022) Hornak, Jaroslav; Kadlec, Petr; Kopřiva, Jiří; Polanský, RadekItem Highly Sensitive Room-Temperature Ammonia Sensors Based on Single-Wall Carbon Nanotubes Modified by PEDOT(IEEE, 2022) Štulík, Jiří; Šlauf, Josef; Polanský, Radek; Mergl, Martin; Kalbáč, MartinItem Simultaneous detection of NH3 and N02 by modified impedance spectroscopy in sensors based on carbon nanotubes(MDPI, 2022) Blecha, Tomáš; Smítka, Václav; Bodnár, Michal; Štulík, JiříThere are many gaseous substances that need to be monitored for possible damage to health or the environrnent. This requires many sensors. The solution to reducing the number of sensors is to use one sensor to detect several gaseous substances simultaneously. Efforts to simplify sensor systems thus lead to the use of a sensor with a suitable sensitive layer and to finding a suitable method of detecting individua! gaseous substances within one sensor. The aim is to find a suitable method to detect various gaseous substances acting on the sensor. For this purpose, modified impedance spectroscopy in the high-frequency range is applied, where the scattering parameters of the sensor based on carbon nanotubes are measured under the action of N02 and NH3 gases. For this method of detection of gaseous substances, a suitable sensor platform structure was designed to enable the measurement of the electrical properties of the sensor in the GHz range. Based on the obtained results, it is possible to use one sensor to detect different types of gaseous substances.Item Study of new nitrogen-fireable copper-nickel thick film paste formulation compatible with thick printed copper(MDPI, 2022) Hlína, Jiří; Řeboun, Jan; Šimonovský, Marek; Syrový, Tomáš; Janda, Martin; Hamáček, AlešThis paper is focused on a new copper-nickel thick film resistive paste which was designed and experimentally developed for the realization of low-ohmic power resistors. This copper-nickel paste has been designed for use in combination with thick printed copper conductors and in comparison with conventional ruthenium-based thick film resistor pastes allows firing in a nitrogen protective atmosphere. The copper-nickel paste was prepared from copper and nickel microparticles, glass binder particles and a combination of organic solvents optimized for its firing in a nitrogen atmosphere. This paper covers a detailed description of copper-nickel paste composition and its thermal properties verified by simultaneous thermal analysis, a description of the morphology of dried and fired copper-nickel films, as well as the electrical parameters of the final printed resistors. It has been proven by electron microscopy with element distribution analysis that copper and nickel microparticles diffused together during firing and created homogenous copper-nickel alloy film. This film shows a low temperature coefficient of resistance 45 x 0-6 K-1 and low sheet resistance value 45 mW/square. It was verified that formulated copper-nickel paste is nitrogen-fireable and well-compatible with thick printed copper pastes. This combination allows the realization of power substrates with directly integrated low-ohmic resistors.
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