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Inclined belt conveyor
Hájek, Ondřej ; Špička, Jiří (referee) ; Malášek, Jiří (advisor)
The purpose of this bachelor´s thesis is design constuction of conveyor for transporting corn in distance of dune 26 meters and diference of height 6 meters. Scope of this work is functional compatation, main size, design of the drive and tension facilities of conveyor. Work include among others evaluation possibillities slant and design of change construction of conveyor. Components of work is strength check of the driving shaft. Attainment of this work is real posibility construction of conveyor, by task.
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Solution alternatives of lifting platform
Hájek, Ondřej ; Malach, František (referee) ; Malášek, Jiří (advisor)
The aim of this thesis is to analyze the possibility of mechanical design platform lifts. Proposal lifting platform with mechanical and hydraulic drive with a capacity of 3500 kg and lift 600 mm. The work is mainly focused on design and strength calculation mechanism and structure. Proposal hydraulic circuits and the development drawings for both types of drive.
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HC08 Microcontroller Development Kit
Hájek, Ondřej ; Sekora, Jiří (referee) ; Čížek, Martin (advisor)
Presented bachelor degree programme is aimed on design and implementation of a development board for Freescale HC908QB8 microcontroller from HC08 family. The board will allow the user to test a variety of typical microcontroller applications including temperature measurement, intelligent LCD interfacing and I2C bus communication. The development board can be programmed using universal DBG08 serial programmer. Care was taken to minimize the probability of an accidental misconnection causing potential damage to the circuit, which makes the device suitable for educational purposes.
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Measurement and analysis of deposition of fibers from mineral wool in respiratory system
Hájek, Ondřej ; Elcner, Jakub (referee) ; Lízal, František (advisor)
This master thesis deals with inhalation of fine particles and fibres into human lungs. This is a scientific field where computer modelling is used to describe the movement of fibres and their deposition in the lungs. However, the results of these simulations must be verified experimentally. The prediction of fibres behaviour is important from a toxicology point of view where it is important to know deposition hot-spots and places where fibres could possibly cause problems. The review of the state-of-the-art is focused on the deposition of particles in human lungs followed with a chapter on fibre as a type of particle, and occupational exposure limits set by different world associations. The last theoretical chapter describes human lungs and its diseases which can evolve when limits for occupational exposure are not met. The experimental chapter consists of a description of the used experimental setup and results from an experiment together with a comparison of results with other similar experiments.
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Interesting cases of fluid mechanics
Čáp, Filip ; Hájek, Ondřej (referee) ; Jedelský, Jan (advisor)
This bachelor thesis deals with the description of some interesting phenomena in the field of fluid mechanics, methods of flow visualization and its recording using a high-speed camera. First, a number of terms and different types of fluid flow are briefly introduced, which is followed by the description of the methods of visualization that enhance the visibility of flow of liquids and gases. The thesis also describes high-speed cameras and examines some interesting effects in fluid dynamics which can be encountered in everyday life as well as in engineering practice. The last chapter is then dedicated to the conducted experiments and their recordings.
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Data diagnostics in modern car control units
Hájek, Ondřej ; Vítek, Richard (referee) ; Prokeš, Aleš (advisor)
Presented Diploma thesis is aimed on design and implementation of car diagnostic interface of engine control units EDC. Diagnostic interface provide communication between car and computer by USB interface. User will be able to task commands by developed computer application. For developing application is necessary to get information about used protocols and basic knowledge in car’s hardware. Understanding OBD2 standard and communication protocol CAN, eventually KWP is necessary for design the solution. Main purpose of this thesis is to store enough usable information about car diagnostic for future continuation.
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Design of lift positional table
Hájek, Ondřej ; Malášek, Jiří (referee) ; Pokorný, Přemysl (advisor)
This bachelor´s thesis describes the design of a lift positional table for overcome the height difference between the two roller tracks. Weight of the load is 550 kg and height difference of roller tracks is 2000 mm. The aim is to suggest the type of power lifting, power lifting functional calculation, functional calculation of the driver tray pallets and determining the main dimensions of the lifting table. The Appendix contains technical drawings of the lifting table and the table frame.
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Pathtracing on GPU
Hájek, Ondřej ; Lysek, Tomáš (referee) ; Polok, Lukáš (advisor)
This bachelor thesis focuses on acceleration of global illumination method called Pathtracing. The goal of this thesis is a demonstration and performance comparison of different implementations of this method on GPU as well as CPU. Implementation will compose of two scenes. One simpler to verify correctnes of used algorithm and one more complicated to demonstrate various effects. The effectiveness and efficiency of said implementations will be analyzed and compared. Additionally, future program expansion and improvements will be discussed.
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