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Utilization of liquefied soils in the form of backfilling self-compacting grouts
Chlachula, Jakub ; Krejčí, Pavel (referee) ; Drochytka, Rostislav (advisor)
The bachelor thesis focuses on the research of liquefied soils based on backfilling self compacting grouts. These grouts could be used as bedding for utility lines with lower cost and without unnecessary waste. The prerequisite is that the soil will be stabilized by a suitable stabilizing admixture, which should increase the strength of the composite. It will be necessary to liquefy this composite by using water and suitable liquefaction or plasticizers. As part of this thesis, currently known and used stabilizing admixture and plasticizers are also evaluated, same as the geological situation in the Czech Republic.
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Heat insulating moulded refractory concretes
Bednárek, Jan ; Bartoníčková, Eva (referee) ; Šoukal, František (advisor)
The thesis deals with the possibility of specific weight lowering of kaolin suspensions using air-entraining agents. These agents are usually used as concrete admixtures. The goal of the thesis is to verify an alternative possibility of creating porous structure in kaolin suspensions in order to prepare heat insulating moulded refractory concretes without using lightweight fillers. The effect of several air-entraining agents was compared, after that the dosage of agent and mixing conditions were optimized. The stabilization of prepared foams and practical application of selected agents were also part of the thesis.
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Editing a selected section of watercourse
Tomšej, Lukáš ; Olišarová, Lucie (referee) ; Šlezingr, Miloslav (advisor)
This bachelor thesis deals with the modification of the section of the Baťa Canal in the town of Strážnice, namely in the range of 8,300 km to 9,520 km. The alteration is divided into two implementation phases. In the first one, all the sediments will be extracted from the bottom of the canal, which will be subsequently dewatered and plowed into the farmland. The removal of the sediments from the canal bed will be made on the original bottom level stated by the handling and operating rules for the sailing route Otrokovice – Rohatec. In the second implementation phase, adequate bank and accompanying growth will be designed, which are an integral part of stabilization adjustments. Due to historical value of the water canal, a major change in the profile of the canal bed cannot be made. Keeping this in mind, biotechnical stabilization of slopes will be carried out. The aim of the regulation is primarily to increase the capacity of the Baťa Canal for the needs of cruise. Also the planting of new trees will restores vegetation accompaniment.
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Light Effects by LED RGB Driver
Vríčan, Peter ; Vochyán, Josef (referee) ; Dřínovský, Jiří (advisor)
The purpose of this thesis is implementation of RGB LED driver using circuit ON Semiconductor NCV7430. The main objective was to design a circuit solution for temperature compensation of the driver. The thesis aims to describe the driver and its functions and to eliminate thermal effects caused by heating the circuit by surroundings. It discusses the circuit thermal stabilization in the temperature range of -40 to 80 °C to the RGB diode lights to a constant color. The thesis presents various possibilities of the stabilization and method of evaluating the obtained parameters of applications. Next, the thesis solves the design of equipment for implementation of light effects. The equipment presents options and features of the RGB driver.
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Design of Quadrocopter
Uhlíř, Václav ; Rozman, Jaroslav (referee) ; Hájek, Josef (advisor)
This student paper discusses basic concept of quadrocopter for purpose of academic platform for testing and development. Paper includes basic overview of construction, stabilization and controlling of quadrocopter. As result of this paper is presented concept of quadrocopter and its constructed prototype with included software console for wireless control under Android system.
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Quadrocopter - Modelling, Stabilisation, Control
Gábrlík, Petr ; Kopečný, Lukáš (referee) ; Žalud, Luděk (advisor)
The Thesis objective is the design and implementation of program management and operational service for a flying robot, quadrotor concept. This thesis is divided into three main parts. The first part is focused on the studies of finished projects, their characteristics and used components, followed by a description of structure and physical properties of the concepts. The second part is focused on the components. It mainly discusses the sensory subsystem, which is concentrated on the sensors operations, data processing for the stabilization needs and elimination of errors. Then service of actuators, remote control and the ground station communication. In the third part are verified physical properties of actuators and designed basic algorithm of stabilisation. This consists of three independent regulator, stabilizing 3 degrees of robot movement freedom, which are rotational movements.
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Proposal to revitalize the banks of the flooded Hulín sandstones - section 2
Čuda, Ondřej ; Pelikán,, Petr (referee) ; Šlezingr, Miloslav (advisor)
The subject of this bachelor’s thesis is to prevent the retreat of the bank line by the proposal of suitable biotechnical stabilization of the banks of the flooded Hulín sandstones on the specified section. Shore abrasion is mainly caused by the starting wind, which results in the formation of waves that subsequently spread the banks. The result of the thesis is the processing of biotechnical stabilization proposals, which are intended to reduce or slow down the retreat of the bank lines.
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Electronic stability systems
Musil, Jan ; Ambróz, Richard (referee) ; Zháňal, Lubor (advisor)
In this Bachelor’s thesis there are basic electronic stability systems described. These systems are mostly used as a precaution in safety of the traffic, but also to ensure comfort of the crew. The main part of the thesis is focused on systems ABS, ASR and ESP. The other parts aim to describe additional systems, which are still in development. In the end there is also view of various individual car companies and possible steps in the future.
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