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Lead-Free Voids Cause Mechanisms and Influence on Reliability
Šimon, Vojtěch ; Špinka, Jiří (referee) ; Starý, Jiří (advisor)
The aim of this work is to analyze reliability of lead-free solder join, in particular the voids generated during the soldering process. The main target of the theoretical part of the work is to isolate basic mechanisms of formation of the voids and optimize the soldering process. The practical part of the paper is based on monitoring the count and size of the voids in a solder join. An X-Ray tomograph has been chosen as a non-destructive method of detection. The statistical part of this work compares conventional soldering of the entire board with local soldering by IR radiation.
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9DOF module for orientation measurement
Hojdík, Matej ; Šebesta, Jiří (referee) ; Frýza, Tomáš (advisor)
This thesis deals with a design of 9DOF module for the evaluation of orientation in space. The thesis includes a theoretical description of sensors, mathematical apparatus for rotating and the Kalman filter. The practical part deals with the design of hardware, firmware and software, whereby the mathematical formulas set out in the theoretical part are applied. In the last part a testing of the created module is presented.
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Calculation of efficient dose rtg diagnostic irradiation
Bažantová, Lucie ; Drastich, Aleš (referee) ; Rozman, Jiří (advisor)
This bachelor thesis deals primarily with the theory of ionizing radiation and its interaction with matter. It deals particularly with x-radiation and the methods of its use in medicine. The thesis contains a description of the origin of the x-ray image and a description of the techniques of radiography and skiascopy. A list of quantities and units used in radiation physics and in radiation protection has been set out, with regard to assessing the risk involved in the interaction of x-radiation with an organism. In particular, the effective dose and the methods of evaluating this during medical irradiation have been set out. The main parts of the work are an overview of the software environment used in radiation physics and an example of the calculation of an effective dose for a concrete radiographic examination together with a detailed description of the method of calculation. At the end of the thesis there is a table of calculated values and an evaluation of them.
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Design of metal detector and X-ray luggage scanner
Fridrichová, Eva ; Paliatka, Peter (referee) ; Zvonek, Miroslav (advisor)
Subject of this Diploma thesis is the design of metal detector and luggage X-ray screening. The thesis concerns with design of frame metal detector and luggage x-ray with focus on visual appeal, keeping of functional elements and concept of construction solution. Main objective is to find solution how to connect aesthetic, ergonomic and technical aspect. Complete analysis leads to design of metal detector and luggage X-ray screening. These appliances then appeal as compact system with uniform design. Also the machines can be used separately. Design of this system of appliances is solved through ergonomic, psychologic, technical and aesthetic aspects.
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Private clinic in Velké Meziříčí
Virgl, Jan ; Semrád, Antonín (referee) ; Štěpánek, Ladislav (advisor)
In my thesis I proposed private clinic in Velké Meziříčí, it is a four-storey building with partial basement. The building is designed as system without girders. The building is approximately L-shaped, has a flat roof. There are a physician offices, pharmacy and X-ray equipment.
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Processing of X-Ray images in studying jawbone diseases
Kabrda, Miroslav ; Šmirg, Ondřej (referee) ; Mikulka, Jan (advisor)
The subject of this thesis is a method proposed for automated evaluation of the parameters of X-ray of cystic disorders in human jawbones. The main problem in medical diagnostic is the low repeatability due to the subjective evaluation of images without using a tool for image processing. In this thesis are described the basic steps of image processing, various methods of image segmentation and chosen segmentation method live-wire. Selected segments were processed in the ImageJ Java environment. In the cystic regions their basic statistical and shape properties were evaluated. The obtained values were used for learning the classification model (decision tree) in the environment RapidMiner. This model was used to create a plug-in for automatic classification of the type of cysts in the program ImageJ.
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Modern trends in radiographic procedures and methods in defectoscopy
Skřivánková, Vendula ; Vlašic, František (referee) ; Juliš, Martin (advisor)
Presented thesis deals with modern trends and techniques in radiographic methods of crack detection which are recently used in engineering practice. In the first part, conventional (analogue) radiography principles based on creating a visible image of tested object to radiographic film are discussed. The next part is aimed to the digital radiography and radioscopy. To digitize existing X-ray film images, application of storage phosphor plates (CR), flat panels (DR) and computed tomography (CT).
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Development of Imaging Methods and its Importance to Biomechanics
Sedláček, Tomáš ; Houfek, Martin (referee) ; Florian, Zdeněk (advisor)
The main objective of this bachelor thesis is to collect all available literature, from which can reader obtain basic knowledge of imaging methods. The methods are divided by its origin into four categories: x-rays, magnetic resonance, ultrasound and nuclear medicine. Each of them is described from the historical, physics and technological view. At the end the importance of each method to medicine and biomechanics is summarized.
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