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Indecisive Belief Functions
Daniel, Milan
This study presents an idea of indecisive functions, their general and also special definitions, plausibility and pignistic indecisive belief functions. The rich structure of indecisive belief functions is studied in general, and also in special views: both general substructures and indecisive belief functions on three-element and general finite frames of discernment. We are focused to pignistic and contour (plausibility) indecisive belief functions, including their mutual relationship in our study. The later have interesting algebraic structure related to Dempster’s rule of combination.
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Radiation exposure of persons working in the risk of ioniing radiation in the University Hospital in Pilsen
ULČOVÁ, Radka
The diploma thesis on "Radiation exposure of persons working at risk of ionising radiation at the Pilsen University Hospital" is divided into two parts. The first analyses personal effective doses of the employees of the Pilsen University Hospital in 20092013, and the second focuses on measurements of secondary radiation created after the activation of collimator systems of linear accelerators. The introduction of the theoretical part discusses the history of radiology, followed by a summary of information on the sources of ionising radiation, its characteristics, properties, methods of interaction with the environment and biological effects on organisms. The chapter on radiation protection focuses on basic legislative regulations relevant to the topic. In the Czech Republic, radiation protection of people working with sources of ionising radiation is mostly based on Act No. 18/1997 Coll., on peaceful uses of nuclear energy, and Regulation of the State Office for Nuclear Safety No. 307/2002 Coll., on radiation protection. The thesis also lists dose limits and basic information about personal dosimetry, and the theoretical section is concluded with information on the methods of protecting personnel and on provided healthcare. The thesis uses as its sources primary literature, internet links, current legislation and data from the database of the State Office for Nuclear Safety on records from personal dosimeters in the analysed period. The thesis had two objectives. The first was to compare levels of exposure at the Pilsen University Hospital. The analysis involved 579 persons in total; after arranging the data into tables and dividing employees into groups by the type of tasks they perform and their job, it was possible to compare median value indicators, confirming the hypothesis that persons carrying out intervention tasks are exposed to more ionising radiation. In order to compare the development of doses over time, a double-selection t-test was performed on data from 2009 and 2013, confirming the effectiveness of anti-radiation measures adopted at the University Hospital and a reduction in the exposure of employees in this period. The second objective was to confirm or deny the hypothesis that secondary radiation created by collimator systems, while measurable, is not sufficiently large to be detected by personal dosimeters. In order to achieve this objective, measurements were carried out at the Oncology and Radiology Clinic of the Pilsen University Hospital. The first measurements tried to determine the relationship between dose and time at various levels of energy, the second compared the relationship between dose and distance from the collimator plane and the third monitored the number of exposures until the collimator plates are saturated and dose is no longer increased. All results were arranged in tables and projected in charts. The results of the research confirmed the hypothesis that secondary radiation created during the use of high-energy equipment is just below the detection limits of personal dosimeters. For this reason, it is recommended to frequently rotate personnel working with the equipment.
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Annual report on the project FR-TI3/579 in the TIP project in 2013
Staš, Lubomír
A complete methodology for determining the initial stress tensor of convergence measurements on the two profiles perpendicular to the longitudinal axis of the tunnel was developed and implemented. It was designed and tested algoritmus for optimization that allows to design the location of measurement points in advance on a pair of rails so that measurement errors are eliminated. It was designed a new methodology for measuring convergence, based on the use of a laser beam. Measurements were carried out at the convergence of three different profiles in Dolní Rožná locality.
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Slightly generalized regular space decompositions
Kolcun, Alexej
Space decomposition methods represent an important part of numerical modelling process. In many applications it is suitable to use the simplest case of decomposition { regular rectangular grid: the whole raster graphic concept can be seen from this point of view. Dierent raster concept, based on regular hexagonal mesh, is analyzed e.g. in [18]. Generalized task { decomposition of the space to the set of the identical elements have been presented in various research areas since a long time, and it is connected with Hilbert's 18th problem [9], [10].
Fulltext: content.csg -  PDF
Plný tet: UGN_0425285 - PDF
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Posibilities affecting of texture of common carp(Cyprinus carpio)
JOHÁNEK, Martin
The diploma thesis deals with statistical comparison of the textural properties of common carp (Cyprinus carpio) ? (hardness, springiness, cohesiveness, chewiness) were kept during the experiment at store?ponds in Trebon. Carps in each pond were fed with triticale or modified form of triticale (not processed, pressed, crushed, not processed cooked at 120 °C and 100 °C and pressed at 120 °C) and one control pond with fish. After the experiment the fish were killed, and the recovery factor was esteblished. The fillets were obtained from samples of muscle precisely in a defined way, and property values texture by TPA (Texture profile analyst) was found. The results show that all four monitored mechanical properties of textures, reach the highest values of control (hardness: 4,756 kg, springiness: 0.689, cohesiveness: 0.788 and chewiness: 2,585 kg), and the lowest textural properties were observed in triticale, not processed, heat- prepared at 120 °C: hardness: 3,259 kg, springiness: 0.646 and chewiness: 1,579 kg, and cohesiveness was lowest in triticale not processed cooked at 120°C: 0.733. Only samples pressed at 120 °C and not processed triticale were statistically significanty different from the others in parameter of hardness. Triticale pressed at 120 °C were statisticanty different from not processed, pressed triticale and control in parameter of cohesiveness. Triticale samples pressed at 120 °C and not processed at 120 °C significantly were different from the others and triticale pressed from controlwere diferrent too. In springiness parameter, there was no statistically significant difference. Was used significancy level p=0.01.
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Skills of students from selected faculties of Charles University for the prevention of Child Sexual Abuse Syndrome
HANUŠOVÁ, Jaroslava
The purpose of this thesis titled ``The competence of students from selected faculties of Charles University to prevent Child Sexual Abuse (CSA) syndrome{\crq}q is to identify the readiness of selected future specialists (final year students specialising in the relative area) to prevent Child Sexual Abuse (CSA) syndrome. In the theoretical part of this work fundamental definitions, as well as terms relevant to Child Sexual Abuse syndrome (CSA), or Child Abuse and Neglect syndrome (CAN) are mentioned. Furthermore, some aspects of epidemiological indicators are presented showing us proof of Child Sexual Abuse (CSA) syndrome in common populations and therefore a need to address this problem. In the practical part of this thesis quantitative interviews were used, which were implemented by Computer Aided Web Interviewing (CAWI). The subject group was a convenience sample of 579 students in there final year (2007/2008) of studying. Students from the following faculties participated: Charles University {--} 1., 2., 3. Medical faculty, Medical faculty in Hradec Kralove, Medical faculty in Plzen, Faculty of Law, Pedagogic faculty, faculty of Philosophy and Human resources faculty. Five hundred seventy nine respondents studying in academic year of 2007/2008 on selected faculties of Charles University were contacted. The questionnaire that was used comprised of different parts, in which both closed as well as open-ended type of questions were used. The scale was used in the analyses of the primary outcome measures. The absolute frequency, relative frequency, cumulative frequency, independent chi square, analysis of variance medium and sample standard deviation were determined. Both tables and graphs were used to show the frequencies distribution Based on results a standard of minimal knowledge/training was established based on the results. Recommendations were made as to the means for facilitating functional interdisciplinary collaborations. The recommendations presented in this thesis are fundamental and are intended to be used by University professors at of the above mentioned Universities. The standard includes fundamental terminology and logistics. The ultimate goal of this work is that it be applied, and that new and relevant information be added by specific faculties.
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