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Detection of functional disorders of platelets using the PFA device in comparison with conventional aggregometry
Klausová, Kateřina ; Bártů, Iva (advisor) ; Blažková, Hana (referee)
UNIVERZITA KARLOVA V PRAZE 2. lékařská fakulta Oddělení klinické hematologie ve FN Motol Kateřina Klausová Detection of functional disorders of platelets using the PFA device in comparison with conventional aggregometry Bachelor work Abstract The theme of this work is to compare two devices designed for measuring functional disorders of platelets - the PFA device and the agreggometer. The PFA device was introduced recently and measures closure time of capillary in a special cartridge. The measurement takes place in a whole blood sample. Aggregometer is used for stimulation of platelet aggregation by the inductors. The measurement takes place in platelet rich plasma. This work compares results of patients whose blood samples were measured on both devices. It figures out whether the results of the devices match and describes their advantages and disadvantages. The work leads to conclusion that is appropriate to use both devices for complementary results in the laboratory. Comparsion of patient samples demonstrates that patients with reduced percentage of aggregation have also prolonged capillary closure time.
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Malfunction yes or no? Traffic accident of maserati quattroporte
Tylšar, Vladimír
The cause of traffic accident, often reported later by driver, is some kind of malfunction. Often is the accident caused only by style of driving, especially disproportional velocity of the vehicle. It seems to be more frequent when driving very powerfull or „sporting“ vehicle has been provided by a unpractised person, by a driver with no experience in driving such kind of vehicles.
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Reduction prices house in Lelekovice as a result of defects or faults.
Faltusová, Veronika ; Uhlová, Eva (referee) ; Weigel, Lubomír (advisor)
This thesis deals with the issue of determining the causes of defects and failures, focusing on a specific property and their significance in determining the price of the property. The first part focuses on the theory explaining the basic concepts used in the valuation of real estate, basic methods of property valuation and classification of construction defects and failures. This chapter includes an analysis of the real estate market in the years 2008 - 2013. The second part is devoted to determining the amount of property damage at a specific property, the calculation of this particular property which is based on technical surveys and subsequent valuation of the property with regard to the results of the survey. The aim is to create a design procedure for reducing the price of the property with the defect.
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Reduction in House Prices due to Roof Structure Defects
Mareš, Petr ; Kosová, Jaroslava (referee) ; Weigel, Lubomír (advisor)
This master’s thesis provides us into the issues of reduction of house prices due to roof structure defect. First charter takes interest in theorethical solutions for residential houses valuation with defects.Real estate survey is introduced in chapter two. The third part of this master’s thesis is focused on possible roof structure defects and malfunctions. In last charter we can find the valuation of house with defect. The main goal of this thesis is to create a procedure for the reduction of property price with roof structure defect.
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Pacemakers and electromagnetic interference
Lojková, Lea ; Sekora, Jiří (referee) ; Havlíková, Marie (advisor)
This work is focused on cardiac pacemakers and sources of electronic interference. The project partly follows another thesis made in the same field of interest (Ing. Kulík, Dept. of Control, Measurement and Instrumentation) and uses similar methodics of measurement. In the theoretical part of the work, the principles of nuclear magnetic resonance and magnetic resonance imaging are briefly explained and most common methods used in MRI are described, as well as the definition of a cardiac pacemaker, main events in pacemaker history and development. Cardiac pacemaker as a system is described in more detail, including construction, control, most common sensors and the ways of use. Electromagnetic interference of cardiac pacemakers and implantable cardioverter defibrillators is processed via a complete review since the oldest scientific paper from December 1991 till May 2009. In the second part, measuring of magnetic field is described, as well as the possibilities of monitoring of its effects on cardiac pacemakers. In fact, there are two possible ways of measuring. off-line exposition of the sample to the magnetic field followed by data acquisition via pacemaker programmer or the continuous on-line monitoring of the pacemaker activity by the means of measuring PC card. While the first method is reliable in cases where the is no sign of malfunction and makes the experiments with a dynamic exposition of sample possible, in some cases it detects a virtual malfunction also in cases where in reality the devices works perfectly. The second method enables a reliable continuous monitoring of pacemaker activity during the whole experiment and its only problem is a higher level of signal noise caused by the sample movement.
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Human Factor in Aviation
Vaňourek, Jiří ; Chlebek, Jiří (referee) ; Šplíchal, Miroslav (advisor)
Diploma work includes summary of aeroplanes accidents, incurred by human factor malfunction in general aviation and in ultralight aeroplanes category on Czech Republic territory since year 2000. It analyses accidents enclosures with a view to discover similarities near particular accidents. From ascertained lockworks ared proposal created for possibly steps, how prevent rise of these accidents. Part of this work are also attachments (formularies, etc.).
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Mechanical maintenance of rotating electrical machines
Smejkal, Pavel ; Synek, Miloš (referee) ; Pavlík, Josef (advisor)
This thesis deals with the mechanical maintenance of rotating electrical machines. It outlines the basic division of maintenance and its effects on the function and cost efficiency due to the type of maintenance. Main emphasis is placed on individual maintenance steps, which is done on the rotating electrical machines and then to determine their importance in relation to the causes of failures.
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Automotive Diagnostic Systems
Bůžek, Václav ; Beran, Martin (referee) ; Ramík, Pavel (advisor)
This thesis is written to make a review abstracting of contemporary systems of automotive diagnostics. It is aimed at the principles of serial and parallel diagnostics and informs about contemporary norms. It brings nearer the basics of used on-board diagnostic systems, including the diagnostics of its components. The thesis also exemplifies the practical functions and possibilities on the elementary diagnosing by using the diagnostic software SuperVag.
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Reliability assessment of FPM
Němec, Ondřej ; Dvořák,, Ladislav (referee) ; Julínek, Tomáš (advisor)
The topic of this thesis was the evaluation of selected elements of flood control measures, abbreviated as PPO. The aim of this paper was to develop evaluation procedure of PPO and then to apply proposed procedure to a specific location. FMEA (Failure Mode and Effects Analysis) that allows the identification of failure modes, their causes and consequences.was chose as a method for qualitative assessment.
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