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Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 51
Orosz, Tamás , Poór, Peter , Karban, Pavel , Pánek, David
Power transformer design optimization for carbon footprint

Cogeneration power plants have already been operated in the Czech Republic for several decades. These cogeneration power plants have been mostly operated with original technologies. However, these original technologies have to be continuously innovated during the entire operation time. This paper...

Hlína, Jiří , Řeboun, Jan , Johan, Jan , Šimonovský, Marek , Hamáček, Aleš
Reliability of printed power resistor with thick-film copper terminals

This paper is focused on the thick-film power resistors with copper terminals. These terminals are created by the new Thick Printed Copper (TPC) technology. This technology is based on sequential screen printing and firing of copper paste in nitrogen atmosphere on an alumina substr...

Kostelanská, Marie , Freisleben, Jaroslav , Bačkovská Hanusová, Zdeňka , Moško, Tibor , Vik, Robert , Moravcová, Daniela , Hamáček, Aleš , Mosinger, Jiří , Holada, Karel
Optimization of the photodynamic inactivation of prions by a phthalocyanine photosensitizer: The crucial involvement of singlet oxygen

Prion disorders are fatal neurodegenerative diseases caused by the autocatalytic conversion of a natively occurring prion protein (PrPC) into its misfolded infectious form (PrPTSE). The proven resistance of PrPTSE to common disinfection procedures increases the risk of prion transmission in medic...

Štork, Milan , Pinker, Jiří , Weissar, Petr
Adaptive Control System for Autonomous Vehicle Path Following

Autonomy in vehicles is a rapidly expanding technology that is of interest in many major car companies. Autonomous driving enables safer journeys by removing human error in driving, as well as reducing driving time and fuel consumption by optimizing the engine and brake actuation.&...

Štork, Milan , Novák, Jaroslav , Brož, Pavel
Cardiac Mathematical Models for Exercise Testing on Treadmill Ergometer

Cardiac output (CO) is a key parameter in the assessment of cardiac function, and its measurement is fundamental to the diagnosis, treatment, and prognostic evaluation of all heart diseases. In this paper the linear and nonlinear models for noninvasive estimation of CO are presente...

Štork, Milan , Mayer, Daniel
Modified Tellegen Principle Used for Power and Energy Systems Modeling

The paper deals with a problem of modeling of dynamic systems. The proposed approach to the problem solution is based on modified Tellegen’s theorem well known from electrical engineering. The novelty of this approach is that it is based on the instantaneous power calculation ...

Jílek, Jiří , Štork, Milan
Assessment of Three Multiple Cuff Blood Pressure Devices

Shortcomings of single cuff blood pressure devices have led to research of devices with more than one cuff for improved accuracy. We assessed two devices that use two cuffs and one device that uses three cuffs. The devices with two cuffs use one occluding arm cuff an...

Holota, Radek , Koucký, Václav , Krist, Petr , Valenta, Pavel , Mašek, Bohuslav
Electronic System for Controlled Modification of Temperature Field in Sheet Metal Blanks

Technology for modifying the local temperature of a material is tested for hot forming. A system for selective controlled cooling was designed for this purpose and a workplace enabling heating, local cooling and material forming was built. This paper describes the principles and po...

Glasberger, Tomáš , Košan, Tomáš , Molnár, Jan
Rack Mounted Low-profile Indirect Frequency Converter

A new indirect frequency converter is introduced in this paper. The main goal of the new proposal is to simplify installation and running as supply unit for industrial applications. It fulfills minimum dimensions requirement and also enables parallel connection and full energy recuperat...

Dragoun, Jaroslav , Talla, Jakub , Košan, Tomáš
Converter Power Losses Computation by FPGA-based HIL Simulator : Invited Paper

Converter losses play a crucial role in the process of power converter design. Especially semiconductor components and heat sink selection are strongly dependent on the total power converter losses and thus affect the power converter size and its price. The most popular techniques ...

Bhajana, V.V.Subrahmanya Kumar , Drábek, Pavel
A Novel ZCS/ZVS Bidirectional DC-DC Converter for Energy Storage Applications

In this paper, a new soft-switched non-isolated bidirectional converter is proposed. This proposed converter is operated with soft-switching (zero current switching / zero voltage switching). It is implemented during the turn-on of main switching devices, with the addition of auxiliary reson...

Uzel, David , Peroutka, Zdeněk
Steady state torque optimal operating point control for wound rotor synchronous motors

This paper discusses steady state optimal control of the motor from the maximum torque point of view. The motor behavior is researched with a vector control supply in the full speed range. The optimal considerations are compared with a behavior of the classical control structu...

Jára, Martin , Blahník, Vojtěch
Cost-effective medium-power charging station for public transport vehicles

Charging stations are becoming an important part of the modern urban infrastructure. This paper describes a concept of a standalone cost-effective medium power charging station dedicated for electric bus charging. It is based on a voltage-source active rectifier operating in both current...

Brychcín, Jiří , Košan, Tomáš , Janík, Dušan , Peroutka, Zdeněk
Simulation and control of FLC converters for UPS systems

This paper is focused on simulation of the diesel or gas electric central, which is used for uninterruptible power supply (UPS) with permanent magnet synchronous generator (PMSG) and flying capacitor converters (FLC).

Blahník, Vojtěch , Talla, Jakub
Study of 3.3 MW voltage-source active rectifier

This paper deals with the behavior and stability of three-phase voltage-source active rectifier with rated power 3.3 MW. This high-power converter is connected to power grid via transformer and input clean power filter. The main purpose of the article is check the stability of ...

Blahník, Vojtěch , Talla, Jakub
Single-phase synchronization for traction active rectifier

This paper introduces the advanced synchronization method second order general integrator phase locked loop modified especially for voltage synchronization exclusively for traction active rectifier. Designed synchronization is characterized by resistance to interfaces and especially quick response to frequency&...

Bláha, Štěpán , Komrska, Tomáš , Šmídl, Václav , Glasbergerová, Vendula , Peroutka, Zdeněk
Multi-harmonic LQ control of single-phase converter with LCL filter

Control of single-phase converters connected to the grid via an LCL filter is a demanding issue due to risk of oscillations. A linear-quadratic (LQ) controller enabling besides standard pure sine control also a multi-harmonic current reference is proposed in the paper. Such a desig...

Pistulková, Alena , Tupa, Jiří , Martinek, Lukáš
Implementace procesního řízení u poskytovatelů zdravotnických služeb

This papers deals with the possibilities of implementation of process management in health care facilities. Emphasis is placed on clarity, simplification of processes to a level that meets legislative and standardization requirements, but minimizes the administrative burden on health professionals.

Pánek, David , Karban, Pavel , Doležel, Ivo
Calibration of numerical model of magnetic induction brazing

A method of finding the temperature dependences of physical parameters of metals is proposed and discussed. The method is based on the combination of measurement of the surface temperature of the material and subsequent solution of the inverse problem using the multi-parametric optimiza...

Hirman, Martin , Navrátil, Jiří , Steiner, František , Džugan, Tomáš , Hamáček, Aleš
Alternative technology for SMD components connection by non‑conductive adhesive on a flexible substrate

This article deals with the assembly of SMD chip components onto a flexible substrate by using non-conductive adhesives. In the experiments, two electrically conductive adhesives (ECA) and two non-conductive adhesives (NCA) were used. The verification of the properties and usability of NCAs&...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 51