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Záznamy kolekce (řazeno podle Datum zaslání v sestupně pořadí): 321 až 340 z 396
Muška, Jiří , Karban, Pavel , Petrášová, Iveta , Doležel, Ivo
Design of linear peristaltic pump

A linear peristaltic pump is designed and modeled. The pump is controlled by a set of five electromagnetic actuators with ferromagnetic cores pressing in the given order an elastic tube with pumped liquid. The paper shows and describes the basic arrangement of the device, pres...

Benešová, Andrea , Hirman, Martin , Steiner, František , Tupa, Jiří
Requirements for education 4.0 and study programs within industry 4.0

In recent years, there has been significant development in the area of implementation of digitization, information systems and new technologies into production. This has led to the emergence of a new industrial revolution, known as Industry 4.0. This revolution will allow for increased&...

Vilímová, Eva , Mašata, David , Lovecký, Martin , Škoda, Radek
Application of serpent code calculations: tritium production using fast neutrons

This paper focuses on tritium production by fast neutrons (especially neutrons with energy 14.029 MeV). Research on tritium production is important and useful in designing future fusion reactors since tritium serves as the principal fuel in DT fusion. Many neutron reactions of different...

Benešová, Zdeňka , Haller, Rainer , Hamar, Roman , Martínek, Petr , Müllerová, Eva , Summer, R.
Some issues related to impulse testing of gaseous insulation with synthetic air

Impulse testing procedures are commonly used for various investigation of high- voltage insulation. Especially for introduction of new type of electrical insulation, like ecofriendly gases alternative to SF6, the statistical behavior of breakdown voltage should be evaluated. The paper deals with&...

Steiner, František , Wirth, Václav , Hirman, Martin
Relationship of soldering profile, voids, formation and strength of soldered joints

This paper deals with relationship of soldering profile, void formation and mechanical strength of resulted solder joints. An experiment was design for this purpose. For the experiment, four solder paste (BiSnAg, SAC305, Sn100C, SnSb) and three surface finishes of PCB (ENIG, immersion A...

Michal, David , Suchý, Stanislav , Šlauf, Josef , Řeboun, Jan , Soukup, Radek
Resistance welding in smart textile

With the growing Smart Textile industry, there is currently increasing interest in mapping the possibilities and quality of contacting embroidered conductive patterns. This paper deals with one of the contacting options currently in use, the method of resistance welding. Furthermore, the pap...

Navrátil, Jiří , Řeřicha, Tomáš , Smítka, Václav , Hamáček, Aleš
Double sided printed pattern interconnected by Aerosol Jet and NCA technologies

This paper presents interconnecting of printed electronics patterns by printing technologies or non-conductive adhesives (NCA). DuPont Kapton substrate, Aerosol Jet nanoparticle silver ink and two types of NCAs were used. The aim of the research is to create a reliable interconnection for&#x...

Blecha, Tomáš , Čengery, Jiří , Pretl, Silvan , Smítka, Václav
Planar resonance circuits for identity documents or banknotes authentication

This paper deals with the design and realization of planar resonant circuits, which are part of a system designed to verify the authenticity of identity documents or banknotes. Validation or authentication is performed based on the evaluation of resonant frequency changes due to th...

Kalčík, Jan , Soukup, Radek
Large area temperature measurement in smart textiles

Smart firefighter protective suits can monitor their inner and outer temperature in order to prevent the burning of sensitive human skin. Embroidered large area sensors, which were developed at the University of West Bohemia in cooperation with industrial partners, are ideal for this&#x...

Hirman, Martin , Neuhöfer, Tomáš , Steiner, František
Bend testing of SMD chip resistors glued on flexible substrates

The paper deals with the static bend testing of electrically conductive glued joints between SMD chip resistors and conductive pattern on flexible substrates. Two types of two-part epoxy electrically conductive adhesives (EPO-TEK E4110 and MG 8331S) were used. Two flexible substrates (kapton...

Pavec, Martin , Hirman, Martin , Soukup, Radek , Hamáček, Aleš
The testing of brass solderability for hybrid sewing thread

This paper presents a research focused on testing of brass solderability for hybrid sewing thread. The hybrid sewing thread is composed of two strands each containing 48 polyester (PES) fibers and 4 brass micro wires. As main investigative method was chosen spread test. Due to...

Hlína, Jiří , Řeboun, Jan , Hamáček, Aleš
Properties of thick printed copper films on alumina substrates

This paper is focused on the properties of Thick Printed Copper (TPC) films with various thickness. TPC technology is based on well-known thick film technology and it is used for power substrate manufacturing as an alternative solution to standard DBC or AMB substrates. The th...

Mašata, David , Vilímová, Eva , Škoda, Radek , Lovecký, Martin
Application of UWB1 code on tritium production calculations

The article focuses on the possibilities of the production of fusion reactors fuel - tritium. Nuclear fusion is one of the most promising ways to tackle rising power consumption. The aim of this research is to propose the most suitable tritium breeder. Numerous calculations we...

Kalaš, David , Šíma, Karel , Pretl, Silvan , Řeboun, Jan , Soukup, Radek , Hamáček, Aleš
Temperature distribution optimization of multichannel sensor system for thermal testing of protective gloves

This paper deals with temperature distribution optimization in flexible printed circuit boards (FPCBs) with assembled temperature sensors. They are a part of a testing system, which is intended to be used for testing of the thermal protection level of protective gloves. In total 28...

Závorka, Jiří , Lovecký, Martin , Jiřičková, Jana , Škoda, Radek
Enhanced nuclear safety of spent fuel

Criticality safety analysis of highly enriched nuclear fuels requires sophisticated calculation techniques like burnup credit in order to show that fuel reactivity is below legislative limits. However, new fuel types are continuously introduced and the increase of the boron concentration in ...

Fořtová, Anna , Závorka, Jiří , Škoda, Radek
Ex-core neutron flux monitoring system in graphite prism for gen. IV reactors

Nowadays Gen. IV reactors are attracting more attention, and so the same attention should be given to the safety and security requirements of these reactors. One of the most critical safety criteria is connected to the control of the chain reaction and thus to the neutron...

Pavec, Martin , Navrátil, Jiří , Soukup, Radek , Smítka, Václav , Hamáček, Aleš
Fully printed IoT antenna for drone-deployed autonomous sensor unit

This paper presents research focused on the development of a flexible fully printed IoT antenna for a drone-deployed autonomous sensor unit optimized for IoT applications. Aerosol Jet® was chosen as manufacturing technology. DuPont™ Kapton® HN 500 polyimide foil was used as a substrate....

Hirman, Martin , Navrátil, Jiří , Steiner, František , Hamáček, Aleš
Reliability of glued joints on flexible substrates during accelerated current ageing

This paper deals with reliability of joints glued by non-conductive adhesives (NCA) on flexible substrates during electrical current ageing. Also the comparison of NCA joints ageing with ECA joints ageing is presented in this paper. Two types of adhesives were used for the experime...

Noháč, Karel , Noháčová, Lucie , Mužík, Václav
Actual possibilities of open-source applications for analysis of power systems

The paper recapitulates the current state and the assumed near future view of the possibility using opensource free software for complex simulation analysis of power systems. The declared general properties and capabilities of significant representative current tools for modeling complex power&#x...

Komrska, Tomáš , Glasberger, Tomáš , Peroutka, Zdeněk
Minimum infinity norm-based PWM for three-phase four-leg converters

Control of four-leg voltage-source converters operating on three-phase systems traditionally faces the problem of transformation from a four-degrees of freedom (DOF) modulation space to a three-DOF output-voltage space. Contemporary, it is highly desirable to minimize the leg voltage, and consequently...

Záznamy kolekce (řazeno podle Datum zaslání v sestupně pořadí): 321 až 340 z 396