Search Results - "Pavel Trnka"

Development of a Biodegradable Electro-Insulating Liquid and Its Subsequent Modification by Nanoparticles by Mentlik, Vaclav, Trnka, Pavel, Hornak, Jaroslav, Totzauer, Pavel

“…The paper is focused on the possibility of replacing petroleum-based oils used as electro-insulating fluids in high voltage machinery. Based on ten years of…”
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Dielectric Responses of Polyurethane/Zinc Oxide Blends for Dry-Type Cast Cold-Curing Resin Transformers by Kúdelčík, Jozef, Hardoň, Štefan, Trnka, Pavel, Michal, Ondřej, Hornak, Jaroslav

“…The influence of different concentrations (0.5, 1.0, and 2.0 wt.%) of Zinc Oxide (ZnO) filler on the dielectric properties of the cold-curing polyurethane (PU)…”
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Categorization of mHealth Coaching Technologies for Children or Adolescents With Type 1 Diabetes: Systematic Review by Trnka, Pavel, Aldaghi, Tahmineh, Muzik, Jan

“…Managing type 1 diabetes in children and adolescents can be difficult for parents, health care professionals, and even patients. However, over the last…”
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Influence of Nanoparticles on the Dielectric Response of a Single Component Resin Based on Polyesterimide by Hardoň, Štefan, Kúdelčík, Jozef, Baran, Anton, Michal, Ondrej, Trnka, Pavel, Hornak, Jaroslav

“…The influence of various types of nanoparticle fillers with the same diameter of 20 nm were separately incorporated into a single component impregnating resin…”
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Hygrothermal Degradation of Epoxy Electrical Insulating Material-Testing and Mathematical Modeling by Leffler, Jan, Kaska, Jan, Kadlec, Petr, Prosr, Pavel, Smidl, Vaclav, Trnka, Pavel

“…The degradation of electrical insulating materials has been a subject of interest for decades as they are commonly applied in many fields of electrical…”
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Self-Tuning Controller Using Shifting Method by Hofreiter, Milan, Moučka, Michal, Trnka, Pavel

“…This paper presents a newly implemented self-tuning PID controller that uses a relay feedback identification using a recently designed relay shifting method to…”
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Various Aging Processes in a Paper-Natural Ester Insulation System in the Presence of Copper and Moisture by Trnka, Pavel, Hornak, Jaroslav, Prosr, Pavel, Michal, Ondrej, Wang, Feipeng

“…This article adds more information to the problem of natural ester use as an electroinsulating fluid in cellulose paper-oil systems, e.g., for use in power…”
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Subspace like identification incorporating prior information by Trnka, Pavel, Havlena, Vladimír

“…The subspace identification methods have proved to be a powerful tool, which can further benefit from the prior information incorporation algorithm proposed in…”
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A Comprehensive Study of Polyurethane Potting Compounds Doped with Magnesium Oxide Nanoparticles by Hornak, Jaroslav, Černohous, Jakub, Prosr, Pavel, Rous, Pavel, Trnka, Pavel, Baran, Anton, Hardoň, Štefan

“…Recently, polyurethanes (PURs) have become a very promising group of materials with considerable utilization and innovation potential. This work presents a…”
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Magnesium Oxide Nanoparticles: Dielectric Properties, Surface Functionalization and Improvement of Epoxy-Based Composites Insulating Properties by Hornak, Jaroslav, Trnka, Pavel, Kadlec, Petr, Michal, Ondřej, Mentlík, Václav, Šutta, Pavol, Csányi, Gergely Márk, Tamus, Zoltán Ádám

“…Composite insulation materials are an inseparable part of numerous electrical devices because of synergy effect between their individual parts. One of the main…”
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Proposal of Physical-Statistical Model of Thermal Aging Respecting Threshold Value by Souček, Jakub, Trnka, Pavel, Hornak, Jaroslav

“…The aging of electrical insulation material or a system is a main issue for designers of high-voltage (HV) machines. Precise determination of the life cycle of…”
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Fabrication and Broadband Dielectric Study of Properties of Nanocomposites Materials Based on Polyurethane by Hardon, Stefan, Kudelcik, Jozef, Baran, Anton, Trnka, Pavel, Michal, Ondrej, Tamus, Adam, Koltunowicz, Tomasz, Kozakova, Alena, Derer, Tomas, Hornak, Jaroslav

“…The aim of study is addressing the influence of nanoparticles (NPs) on the dielectric properties of polyurethane. In this research, only investigated the…”
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Study of the Complex Permittivity of a Polyurethane Matrix Modified by Nanoparticles by Kudelcik, Jozef, Hardon, Stefan, Hockicko, Peter, Kudelcikova, Maria, Hornak, Jaroslav, Prosr, Pavel, Trnka, Pavel

“…This study presents the influence of various types of nanoparticle (NP) fillers incorporated into a polyurethane (PU) (VUKOL 022) matrix and its subsequent…”
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Synthesis and Diagnostics of Nanostructured Micaless Microcomposite as a Prospective Insulation Material for Rotating Machines by Hornak, Jaroslav, Mentlík, Václav, Trnka, Pavel, Šutta, Pavol

“…This paper deals with the topic of composite insulation materials for rotating machines and it is primarily pointed to the synthesis of new three-component…”
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Revisiting the thermal ageing on the metallised polypropylene film capacitor: from device to dielectric film by He, Yushuang, Wang, Feipeng, Du, Guoqiang, Pan, Lei, Wang, Kaizheng, Gerhard, Reimund, Plath, Ronald, Rozga, Pawel, Trnka, Pavel

“…Metallised polypropylene film capacitors (MPPFCs) are widely used in power electronics and are generally degraded by elevated temperatures. This work aims to…”
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Environmental Impact and Aging Properties of Natural and Synthetic Transformer Oils under Electrical Stress Conditions by Kurzweil, Peter, Schell, Christian, Haller, Rainer, Trnka, Pavel, Hornak, Jaroslav

“…Against the background of environmental compatibility and unrestricted technical usability, synthetic, and natural transformer oils are critically compared in…”
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Using of the Aging Models and Rotating Machine Insulation Evaluation by Vaclav, M., Pavel, T., Josef, P.

“…The voltage waveforms generated by power frequency converters affect significantly the reliability of drive wall insulation. A power inverter produces…”
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Breakdown and streamer behavior in homogeneous synthetic trimethylolpropane triesters insulation oil by Wang, Kaizheng, Wang, Feipeng, Shen, Zijia, Lou, Ziyi, Han, Qiuhuang, Li, Jian, Trnka, Pavel, Rozga, Pawel

“…A new method, which involves the addition of alkaline Al 2 O 3 (3 wt%) and activated clay (5 wt%) as adsorbents for homogeneous synthetic trimethylolpropane…”
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South-Moravian Rural Borderland by Vaishar, Antonín, Šťastná, Milada, Trnka, Pavel, Dvořák, Petr, Zapletalová, Jana

“…The South Moravian rural borderland has been studied as an example of peripheral countryside. It is defined by municipalities the cadastral districts of which…”
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Structure Change of the Insulating Composite by Mentlik, Vaclav, Trnka, Pavel, Taborik, Ondrej, Pihera, Josef

“…Modern power electric drives brought advantages in induction motor control. In the same time appeared problems with high frequency square waveform voltage…”
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