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Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 79
Veřtát, Ivo , Dudáček, Luděk
Multidimensional Cross Parity Check Codes as a Promising Solution to CubeSat Low Data Rate Downlinks

Simple cross parity check codes have been well known for decades in the areas of magnetic recording and radiation-hardened memory in space applications. However, the computational power requirements of higher dimensional cross codes mean that priority has been given to different forward ...

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 ...

Scharfenberg, Georg , Elis, Luděk , Hofmann, Gerhard
New Design Methodology – Using VHDL-AMS Models to Consider Aging Effects in Automotive Mechatronic Circuits for Safety Relevant Functions

In this paper a design method for mechatronic functions in an early design phase under consideration of the requirements of functional safety is proposed [14]. The goal of the method is to discover threats for the safety goals and to prove or optimize the diagnostic mecha...

Kubík, Zdeněk , Skála, Jiří
Electromagnetic Interference from DC/DC Converter of Photovoltaic System

This paper is focused on electromagnetic interference from DC/DC converter of photovoltaic system for home application. This converter produces disturbances in a wide frequency range. According to international standard CISPR 11, the frequency range for disturbance measurement could be divided&#x...

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...

Voborník, Aleš , Veřtát, Ivo , Linhart, Richard
Experimental Electric Power System for Small Satellites with Independent Supply Channels

Small satellites such as CubeSats are not adequately protected in the cosmic environment from ionizing radiation due to the low weight limit, which does not allow the use of heavy shielding materials with the high atomic number. Therefore, the power supply system of such small...

Štork, Milan , Novák, Jaroslav
Patient Model and One New Possibility Evaluation of Anaerobic Test

The Wingate Anaerobic test (WAT) is the most popular test for estimation a person's anaerobic capacity. Because anaerobic performance is important for many athletes, the most well-known application of the Wingate test is in sports medicine. But there is also more. The Wingate t...

Štork, Milan , Mayer, Daniel
RLC Ladder Oscillators Controlled by Energy Approach

The following topics are dealt with: artificial satellites; CMOS integrated circuits; switching convertors; reliability; DC-DC power convertors; failure analysis; oscillators; capacitors; solar power satellites; network topology.

Linhart, Richard , Voborník, Aleš , Veřtát, Ivo
Communication Subsystem for PilsenCUBE Nanosatellite

This paper presents a design concept of new radio communication subsystem, intended for use on the PilsenCUBE nanosatellite. The hardware and software solution is based on previous experiences with the VZLUSAT-1 setup and operation. Our aim is to overcome weak points which were fou...

Linhart, Richard , Georgiev, Vjačeslav , Berretti, Mirko , Bozzo, Marco
Last Upgrades of Roman Pot Electronics

This article presents the recent (2017-2018) electronics modifications for the upgrade o the TOTEM roman pot detectors at the CERN LHC. To improve the timing accuracy and reliability the new Roman Pot detector configuration utilizes both DSDD (Double Side Diamond Detector) an silicon&#x...

Dudáček, Luděk , Voborník, Aleš , Masopust, Jiří
PilsenCUBE-II Measurement Board as interface for student’s experiments

One of the main goals of the PilsenCUBE-II picosatellite project is to offer on board payload space for the student's experiments for the students from the various secondary schools of the western Bohemia. The students experiments have to be simple enough in scope of skill...

Kubík, Zdeněk , Skála, Jiří
Stripline for electromagnetic susceptibility testing — Input impedance matching

This paper is focused on input impedance optimization of a stripline. The stripline for electromagnetic susceptibility testing represents a radiating structure which is composed of one active and one or more grounded conductors. The characteristic impedance of the stripline is given by ...

Kubík, Zdeněk , Skála, Jiří
Electrical properties optimization of stripline for EMC testing of automotive parts

This paper is focused on optimization of electrical properties of 50 ohm stripline which was described in international standard for the automotive industry ISO 11452-5. The standard shows the dimension of the stripline but information about impedance matching is missing - and this ...

Tolar, David , Štork, Milan
Monitoring of a skin temperature in vicinity of a surgical wound

This article describes experimental measurements of a skin temperature in vicinity of a surgical wound. Measurements were carried out in collaboration with the orthopedic department of the University Hospital Olomouc, Czech Republic. A system used for sensing, transmission and visualization of&#x...

Štork, Milan , Weissar, Petr , Kosturik, Kamil , Novák, Jaroslav , Zeman, Václav
Use of accelerometer for walk-run or shot analysis for sport and rehabilitation purposes

Human movement analysis is a research field with clinical and biometrics application. It has been shown useful in the objective measurement of gait, balance, falls risk assessment and mobility monitoring. Running and/or walking are also integral activities to most athletic disciplines. ...

Štork, Milan , Mayer, Daniel , Hrušák, Josef
Generalized tellegen principle used for energy method for systems modeling

This paper deals with dissipativity, stability, chaotic behavior and related structural properties of a relatively broad class of finite dimensional strictly causal systems. The class of nonlinear systems under consideration is described in the state-space representation form. System properties are&#x...

Mora Sierra, Yesid , Georgiev, Vjačeslav , Mora Sierra, Yesid
Readout interface for strip detectors with spectrometry applications

In the present paper a preliminary design and implementation of a readout interface for strip detectors, using Applied Specific Integrated Circuits (ASICs) is discussed. Key issues are the parameters and features of the main constituent parts of the system: strip detectors, ASICs and&#x...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 79