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Digital clock and thermometer with matrix display
Kerndl, Michal ; Stehlík, Jiří (referee) ; Šandera, Josef (advisor)
There is suggestion of obtaining exact time and temperature in this work, based on DCF signal and SMT160 temperature sensor. This project is based on LED matrix display wich is ready-to-connect module. Layout of this work is designed schematic and board layout wich can be used to produce working prototype. This prototype have been created and tested in practice.
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Architectural and technological project for construction of residential house in Olomouc
Stehlík, Jakub ; Venkrbec, Václav (referee) ; Henková, Svatava (advisor)
Subject of this final thesis is the upper gross production technology of apartment building in Olomouc – Klášterní Hradisko. This work contain technical reports, site family house, device of construction site, technological provisions, overal results, timetable, machine set design, monitoring and test plan, occupational safety.
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Vibration system control through embedded system
Genčanský, David ; Stehlík, Jiří (referee) ; Szendiuch, Ivan (advisor)
The importance of vibration and vibration tests is increasingly relevant given th growing number of mobile electronic devices. This thesis descibes the design of control vibrating shaker table, which is an essential element for vibration testing. At the beginning is an initial look on the problematics of vibration, vibration test and influences of vibrations on electronic components, solder joints and other parts uses in microelectronics. Provides insight to the principles of vibration measurement and controlling system used in industry. The workplace is designed for testing and measuring of vibrations. The workplace designed and developed in the LabVIEW enviroment based on CompactRIO platform.
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Current Feedback Circuits for Analog Signal Processing
Stehlík, Jiří ; Bartoň,, Zdeněk (referee) ; Dostál, Tomáš (referee) ; Musil, Vladislav (advisor)
This dissertation thesis deals with design of new functional blocks usable in area of analogue signal processing, focusing on sensor signal processing. Versatility of these circuits will find applications in programmable analogue array structures that will be possible to control and configure via a digital signal. Hereby build-up array would be fully a reconfigurable digital control system for sensor signal processing and usable for a wide range of different sensors. It offers possibility to build-up a control code for each specific sensor system, with which it would be possible to achieve optimal results of the entire system and consequently place the system on a chip. The presented programmable array is designed from configurable analogue blocks. The current feedback circuits, which in a suitable configuration can operate in voltage or current mode, are used here. This allows to achieve very good results in the systems with very low power supply, which is closely associated with mobility and autonomous behavioral (that are very important and observed parameters today) of the entire sensor-based framework. The work deals in detail with particular blocks, which are described theoretically and evaluated for using in the programmable analogue array. Design of the structure of programmable analogue array as well the use of these circuits in the part of whole system (that will be realized on a chip) are presented at the end of this thesis.
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Design of the optofiber sensor system to monitoring change of length
Jelínek, Michal ; Stehlík, Jiří (referee) ; Mikel, Břetislav (advisor)
The bachelor´s thesis deals with design and verification of optical fiber sensor system for measuring changes of length. This system is designed to shape monitoring of the nuclear power plant containment. The principle of measurement, design and realization of the first version is described in the work. Principle of measurement and functionality of the whole system was verified by measurement of specially prepared reinforced concrete console. The console was prepared in the way to simulate behaviour of containment of the nuclear power plant. Within development of system there were prepared of optical fiber sensors with Bragg´s grattings which are later used for measurement.
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Circadian rhythms and photoperiodism in insects
STEHLÍK, Jan
In this thesis we present experimental data and discuss circadian rhythm regulation in the housefly, Musca domestica. Our findings suggest that, although differences in the mechanisms of circadian rhythm regulation between Musca domestica and Drosophila melanogaster are not as fundamental as was originally expected, they still provide interesting insight into the evolution of biological clocks. We also studied possible involvement of one of the circadian clock genes, timeless, in photoperiodic induction of diapause in a drosophilid fly, Chymomyza costata. We found the transcription of tim gene to be strongly disrupted in CNS of npd-mutant (non-photoperiodic-diapause) larvae. Analysis of genomic structure of tim gene revealed that the promoter of timelessnpd allele carries a large deletion, a possible cause of disruption of photoperiodic calendar function in npd-mutant larvae of C. costata.
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Mineralogical and geochemical characteristics of selected hydrothermal mineralizations in the Blanice Furrow
Stehlík, Jan ; Zachariáš, Jiří (advisor) ; Hurai, Vratislav (referee)
Blanice furrow is about 180 km long NNE-SSW trending fault system which extends from Český Brod through České Budějovice to Linz in Austria. Numerous small sized silver bearing Ag-Zn- Pb±Cu deposits and two late-orogenic gold deposits (electrum) are hosted in this tectonic zone. The most important silver-bearing ore regions are Stříbrná Skalice -Střímělice, Ratibořské Hory - Stará Vožice and Rudolfov which were mined in the Middle Ages. The most important gold- bearing deposit is Roudný which was mined in the period 1985-1930. In this thesis, mineralogical characteristics of ore and isotopic composition of carbonates were studied. Galena and sphalerite does not contain silver which has been found in Ag-rich fahlore and other Ag-minerals. δ18 O values of carbonates are 11 - 23 ‰ SMOW and δ13 C values are -8 to -17 ‰ PDB. These isotopoe charakteristics indicates deep methamorphic origin of hydrothermal fluid. Significant variations in δ13 C value suggests more than one source of carbon which is probably of deep crustal origin mixed with carbon of organic origin hosted in moldanubian crystalline units. Isotope fractionation equations have been used to determine the temperatures of carbonate crystallization which are about 100 - 300řC and quite well corresponds to homogenization temperatures of fluid...
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Effects of high-intensity interval training on the aerobic performance of soccer players
Stehlík, Jiří ; Frýbort, Pavel (advisor) ; Kokštejn, Jakub (referee)
Title: Effects of high-intensity interval training on the aerobic performance of soccer players. Objectives: Influence eight-weeks intervention HIIT program on aerobic performance of football players. A secondary aim was to determine influence eight-weeks intervention HIIT program on aerobic performance of football players ages categories U16 and U17. Methods: High intensity interval training Results: After eight-weeks HIIT program occurred in the experimental group of football players to improve aerobic performance. HIIT program therefore has positive effects on aerobic performance. Football player age category U17 increased performance of 1,9 ml.min-1 .kg-1 , which is slightly greater increase than in age category U16 which increased performance of 1,6 ml.min-1 .kg-1 . Keywords: high intensity interval training, aerobic performance, Yo-Yo test, soccer
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