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Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 39
Hlína, Jiří
Tištěná elektronika

This thesis deals with issues of power electronics substrates, especially with power electronics substrates realized by thick film technology (TPC technology). Conventional power electronics substrates, ceramic materials for their manufacturing and power electronics substrates realized by TPC technology ar...

Kadlec, Petr
Analýza životnosti elektroizolačních materiálů pomocí strukturálních analýz

This PhD thesis deals with the issue of electrical insulating composite materials, which are designed primarily for the cable industry and should meet the requirements for reduced flammability and overall safety of cable lines for lower voltage levels in indoor and outdoor environments....

Totzauer, Pavel
Nové diagnostické metody a postupy v elektrotechnologii

The aim of this paper is to present possible ways to improve the parameters of vegetable oils for use as electroinsulating fluids. The monitored parameters were selected due to their influence on the long-term use of vegetable oil in transformers. The thesis begins...

Hahn, Pavel
Aplikace infračervené spektroskopie s Fourierovou transformací pro analýzu elektroizolačních materiálů

The main focus of this work is an experiment dealing with transformer oil analysis during its accelerated thermal aging. The main objective was particularly the verification of the end-point criteria of oil during aging and determination of times needed to obtain these criteria. Th...

Šimota, Jan
Návrh a ověření nových metod pro optimalizace a simulace výrobních procesů se zaměřením na oblast vývoje, výroby a diagnostiky v elektrotechnice

This thesis deals with design of a methodology for risk modelling and management in electrical engineering sector. The opening part summarizes topic of process management and common used methods for their control, visualization and simulation. Further, summarizes topic of theory of risk ...

Čermák, Michal
Využití aluminosilikátů v elektroizolačních materiálech

This doctoral thesis summarizes the state of the art in the area of Halloysite nanotubes with focus on its perspective utilization in halogen free flame-retardant cable polymer nanocomposites. The introductory chapter focuses on the development of technical standards and European legislation,...

Zuzjak, Ladislav
Vícekanálové měřicí metody v akustice

Multi-channel sound systems are very often used in many areas. One of the significant area is music playback in the entertainment industry. A specific area is high-quality car sound system. At the present, the sound systems in the automotive are realized using multi-channel loudspe...

Smítka, Václav
Senzory chemických látek

This dissertation deals with gas sensors and the possibilities of parameters measurement with respect to the imaginary part of complex impedance. The broadband impedance spectroscopy is a powerful tool to express complex permittivity changes in response to a change in the composition of...

Mraček, Lukáš
Perspektivní elektronické součástky na bázi organických sloučenin

With the discovery of conductive polymers in the 1970s, new opportunities for organic electronics research opened up. Later, these materials began to be used in combination with printed electronics. The field of printed electronics is devoted to the research described in this thesis.&#x...

Hornak, Jaroslav
Interakce nehomogenního dielektrika s elektrickým polem

Dielectric materials of different forms and states are an inseparable part of high voltage applications. From the point of reliability, it is the weakest part of the reliability chain of the whole device. For this reason, there is necessary to take the effort to the ...

Zemanová, Monika
Dynamická mechanická analýza elektroizolačních materiálů

The presented doctoral thesis is focused on possibilities of incorporation of a nonwoven nanofibers polymeric layers into a standard fibre/thermoset-matrix system based on glass cloth, mica paper and epoxy resin. The main purpose is composition modification of the previously mentioned compos...

Kabešová, Zuzana
Metody hodnocení hluku v komunálním prostředí

As a part of everyday life, noise can influence human health, the quality of living and peace of mind. The WHO (World Health Organization) defines health as "a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity"...

Rendl, Karel
Diagnostika propojovacích struktur součástek a substrátů

This work deals with the optimization of the soldering process and its impact on the quality of the solder joint in terms of flux. First chapter describes introduction to the issue of lead-free soldering and difficulties concerning this technology. This chapter is mostly focused&#x...

Hirman, Martin
Diagnostika propojovacích struktur součástek a substrátů

This thesis deals with interconnection of components with flexible substrates considering the different properties compared to the standard rigid substrates. This topic is explained theoretically in the first part of the thesis. Especially, the soldering technology, gluing technology, types of fl...

Harvánek, Lukáš
Nanokompozity pro elektrotechnické aplikace

The biggest advantages of using solid polymer dielectric materials for high voltage devices are specifically their electrical and physical properties. For this reason, the main idea and goal of this study is to assess to what extent nanotechnology can improve the electrical properties&#...

Wirth, Václav
Diagnostika propojovacích struktur součástek a substrátů

This thesis describes the issue of soldering in electronics, focusing on the intermetallic compounds formation in a joint structure. The opening part deals with soft sodering in electronic. Materials, technologies of soldering and the current state of the intermetallic compounds issue are&#x...

Svoboda, Michal
Implementace Condition Based managemantu elektroizolačních systémů

Growing demand on efficient operation of the electrical grids is driving the operators of electrical machinery and equipment to efficiently invest into maintenance and renewal of operated assets. For accurate and cost-effective decisions operators&...

Štulík, Jiří
Senzory

This thesis deals with a chemoresistive, toxique gas sensors based on carbon nanotubes modified by other organic materials. The modification is carried out in order to improve certain sensor properties. The thesis is divided into two major parts. In the first part, including chapte...

Veselý, Ondřej
Nové materiály pro kabelovou techniku

At first in this thesis the current knowledge about the used cable sheath materials is summarised. Next the increasing requirements for technical parameters of cables from the perspective of the European legislation and the possibility of using nanodielectrics are analysed. Consecutively the...

Tomášková, Tetjana
Zlepšování parametrů vysokonapěťových zařízení

Dissertation thesis is targeting improvement the thermal balance of electrical rotating machines. It summarizes the current knowledge in the field of cooling of electrical machines and ways of transfer of heat in them. There is also shown the necessary theory in the fields of ...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 39