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Technical bases of thermography for radiologists.
SOSNA, Filip
The bachelor thesis solved the technical fundamentals of thermography using the curriculum process. The bachelor thesis has investigated the problem in the following way: Goal 1: Perform a system analysis of the technical bases of thermography and adapt the results to the capabilities of radiological assistants - Goal 1 was accomplished by performing a system analysis of the structural levels of the technical bases of thermography. Goal 2: Perform a comparative analysis of the technical bases of thermography abroad and in the Czech Republic - Goal 2 was met by comparison between America, Asia and Europe and the Czech Republic (with an unsuccessful result for the Czech Republic). Goal 3: To transform the results of system analysis, adapted to the needs and possibilities of future radiological assistants, into educational form - goal 3 was fulfilled on the basis of selected educational theory and its application. Goal 4: Choosing a suitable educational theory to convey knowledge about the technical bases of thermography to radiological assistants - Goal 4 was accomplished by selecting the theory of the curricular process. Hypothesis H1: Educational form of the technical basics of thermography for the examined group of recipients can be created by applying the theory of curricular process - Successful implication of individual variant forms of the curriculum on the research field of technical basics of thermography enabled the hypothesis H1. Hypothesis H2: Knowledge of the recipients of education in the field of technical basics of thermography will have a Gaussian distribution close to the implemented distribution curriculum - Successful application of selected types of theoretical distributions (exponential distribution, normal distribution) to the result of the educational test. The theoretical benefits of the thesis include the design of structural levels of the system of technical basics of thermography. The practical benefits of this thesis include, for example, creating an educational text and a test for the technical basics of thermography. Based on the achieved results, it is also possible to propose follow-up work - eg exploring the possibilities of increasing the use of thermographic imaging methods in the Czech Republic.
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Methods of assessing the increase in the durability of concrete products with a painted surface with a subsequent cure
Minaříková, Kateřina ; Eger, Lukáš (referee) ; Hubáček, Adam (advisor)
This diploma thesis is focused on the description and summary of existing knowledge about vibro-pressed concrete products with treated surface with protective coating, that is hardering by ultravioled and infrared radiation. The theoretical part describes the production of vibro-presses products, possible wayt of finishing the surface including the description of the most commonly used materials and the methods of application and hardering of protrctive coating on the surface. Another point of the theoretical part is creating of lime efflorescence on the concrete surface and their subsequent disappearance. The experimental part of the thesis is ficused on obtaining information about the properties of the modified pavements by these techologies and comparing the acquired properties with the charakteristice of the reference pavements that do not have any protective coating on their surface.
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Physical bases of thermography for radiotherapists
LÁVIČKA, Šimon
There is currently no educational material for radiological assistants and students in this field to discuss the physical foundations of thermography. In particular, material which is appropriate to the presumed physical and mathematical knowledge required for the field of Radiologic Assistant and other related disciplines. Especially due to the fact that part of the scientific community sees in thermography a promising method for mammologii, rheumatology, orthopedics, angiology and dentistry. This motivation led to the elaboration of this bachelor thesis which set out these following goals: The selection of theory of knowledge transfer to the level of "Radiological Asssistant" and other related fields. The creation of an educational text that respects the chosen theory and reflects the blackbody radiation laws. The monitoring of current state of thermography knowledge in the addressees. There were two hypotheses formulated on the basis of an analysis of the current state and the setting of objectives: The application of theory to the curriculum process can create important components of a project curriculum for a given group of learners. The knowledge of the learners will have a theoretical distribution of the near- normal distribution in the area of physical fundamentals of thermography. As a convenient theory for transferring knowledge from science to the educational sphere has been proved to be the theory of the curricular process. Its applicability was accepted by the international scientific community as well see the impacted publication (Záškodný, 2012). Firstly, it was necessary to remind a generally known relationship of infrared radiation to thermography and than analyze the discovered theoretical physical backgrounds up to date, the most important for thermography also in relation to the radiation of the blackbody. There are also shown and described subsequent physical laws: Stefan-Boltzmann law, Wien displacement law, Rayleigh-Jeansons law and Planck´s radiation law, whereby it is especially necessary to emphasize the relationship of these laws to blackbody radiation whose temperature is between 0 K or -273,15 through the explanation of the emissivity parameter, which is a dimensionless quantity determining the heat emission capability. Its value must be entered in the thermal camera. Subsequently, a knowledge test was created on eighteen questions with a selection of four options, where only one was correct. Twenty-five radiological assistants active in their field at the age of twenty-three to fifty-three, with a length of practice from half a year to thirty-one years, were addressed. The methods of descriptive and mathematical statistics were used in the quantification of the addressees´ knowledge. All twenty-five tests were processed this way. Performing nonparametric testing of the empirical distribution of the scores obtained from these tests revealed that the second of the hypotheses set was not confirmed. The knowledge of the addressees was higher than the hypothetical assumption.
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Temperature measurement of a machine tool
Novotný, Petr ; Merenus, Ondřej (referee) ; Hermanský, Dominik (advisor)
The aim of this work is to get acquainted with the problems of temperature measurement, various types of non-contact temperature measurement and types of non-contact gauges. It also tries to explain the basic concepts and knowledge from the field of machine tools and their thermal load. Part of the thesis is to test this knowledge using measurements at Intemac Solutions s.r.o. The acquired knowledge is then evaluated using graphs and tables.
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Motion Analysis
Hudec, Jiří ; Čmiel, Vratislav (referee) ; Sekora, Jiří (advisor)
Bachelor thesis is dealing with how to analyze human walk with Vicon camera system. In the first chapter are described elementary ideas for gait analysis and principal methods of Vicon system. There is also discussed basic layout of cameras in the laboratory and layout of markers attached at a human body. The second chapter is also about synchronisation of multiple cameras and description of CVS format. Further, in the third chapter are discussed four algorithms created in Matlab for a description of gait analysis. In the last fourth chapter are discussed the results of the software from Matlab and comparison these results with results made in the laboratory of gait analysis.
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Analysis of infrared acquisition parameters
Zembol, Filip ; Drastich, Aleš (referee) ; Čech, Petr (advisor)
The topic of my thesis is the analysis of parameters of the infrared imaging and the usage of these parameters for the design of a thermographic equation and a programme in the MATLAB environment in which the termography formula and the influence of the particular quantities, which take part in it, will be graphically depicted. In the thesis we will first of all introduce the infrared radiation, its types and features. With the help of the particular radiation laws and distracting elements of the infrared radiaton a formula trimming the distracting elements of the thermal relief will be designed. This formula will enable us to count the emission surface temperature of the scanned scene (grey body) and thus eliminate the elements influencing the resulting temperatures of the scanned scene. Furthermore, a programme which will image the IR acquisition model (thermogram) on the basis of the thermography equation will be designed. The thermogram will change in dependence on the changes of the thermography equation quantities. The change will be expressed by the shift of the color spectrum (thermographic scale). This programme graphically presents the changes of the quantities influencing the resulting scene and provides a better grasp of the influence and the function of particular quantities in the thermographic equation.
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Assessing the impact of the closing of paint and lacquer surfaces on the durability of concrete products
Zubkova, Ekaterina ; Eger, Lukáš (referee) ; Hubáček, Adam (advisor)
This diploma thesis is focused on studying the influence of different types of surface treatments on vibropressed product. The main goal is to characterize surface treatments consisting of application of surface coatings that are hardened by infrared or ultraviolet radiation. Theoretical part gives specifications already known methods for surface finishing. Briefly describes selected types of prefabricated concrete parts and specificate the requirements for these products. It also describes used test methods. The experimental part was aimed at establishing the effectiveness of changing properties concrete products by adding coatings on their surface. This was achieved by testing the properties of concrete paving blocks with modified surfaces and testing of reference blocks that did not have any surface treatment followed by mutual comparison of the results.
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Energy Assessment and PENB when Replacing Heat Source in a Family House
Minář, David ; Počinková, Marcela (referee) ; Horák, Petr (advisor)
The diploma thesis deals with energy assessment and proof of energy performance of the building when replacing the heat source in a family house. The theoretical part deals with thermography and thermocamera in energy practice. The experimental part of the thesis was focused on the thermographic survey of the object and the evaluation of the outputs. The computational part focuses on the energy analysis of the assessed energy economy.
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High-average power picosecond mid-IR source
Vyvlečka, Michal ; Novák, Ondřej (advisor) ; Trojánek, František (referee)
1 Title: High-average power picosecond mid-IR source Author: Michal Vyvlečka Department: Department of Chemical Physics and Optics Supervisor: Ing. Ondřej Novák, Ph.D., Hilase centre, Institute of Physics of CAS Abstract: High average power wavelength tunable picosecond mid-IR source based on optical parametric generation (OPG) and optical parametric amplification (OPA) is being developed. The conversion system is pumped by an Yb:YAG thin-disk laser delivering 100 W of average power at 100 kHz repetition rate, 1030 nm wavelength, and 2-3 ps pulse width. Part of this fundamental beam pumps an OPG process in a PPLN crystal. The generated wavelength is determined by PPLN's poling period and temperature. Tunability of the signal wavelength between 1.46 µm and 1.95 µm was achieved, the signal beam of 20 mW was generated at 2 W of pump power, when double pass of the beams through PPLN crystal was used. The corresponding idler wavelengths were in range 2.18-3.50 μm. The signal beam was further amplified by OPA process in two KTP crystals, which was pumped by the fundamental beam. The signal beam was amplified up to 2 W at pumping of 38 W. Tuning of the output wavelength was realized by change of the phase-matching angle in KTP crystals. Tunability between 1.70-1.95 µm for signal and 2.18-2.62 µm for idler was...
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Possibilities of increasing the durability of concrete products based technologies hardening their surface
Minaříková, Kateřina ; Eger, Lukáš (referee) ; Hubáček, Adam (advisor)
In the last years, we focus on higher quality of surfaces in the field of vibro-pressed concrete products. Therefore, there are products with specially modified backing layer in the market where there is implemented impregnation coating on the surface that is cured by ultraviolet and infrared radiation. The primary objective of my thesis is summary of the existing knowledge about vibro-pressed concrete products that are modified by these technologies. I will especially focus on description and efficiency of using particular methods, principals of curing surfaces and other modification of concrete product’s surfaces with emphasis on its durability. There will be examined in the laboratory conditions some of the characteristics of these vibro-pressed concrete products as resistance of surfaces against water effects and chemical defrosting substances, water absorption of surfaces, abrasion resistance, slip resistance, as well as risk reduction of creating lime efflorescence on the concrete surfaces.
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