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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

Degradační testy polymerních materiálů vystavených klimatickým podmínkám / Degradation test of polymer material

Chleboun, Jiří January 2013 (has links)
Basic knowledge of photovoltaic energy transformation, devices and materials, used in photovoltaics are summarized in this master’s thesis. Sort of degradation factors and its consequences of the photovoltaic panels are described there. Detail reviews of degradation tests are processed at the end of theoretical part. The main purpose of this research is selected covering materials dielectric properties change monitoring. These covering materials were influenced of accelerated thermal aging and increased humidity.
42

Vliv lidského činitele v provozu dopravních letounů / Human factor in air transport

Pískatý, Slavomír January 2010 (has links)
This dissertation examines the problems of human error in civil aviation. Its aim is, first and foremost, to evaluate types, origins and frequency of particular mistakes in piloting technique of aeroplanes. The dissertation comprises a study of the commonest human errors as presented by the examples of European airlines. The conclusion of the dissertation details proposals of method and approach on eliminating human error and thus increasing air travel safety.
43

Vliv lidského činitele na nehodovost malých letadel / Effect of the human factor on small aircraft accident

Dluhoš, Jakub January 2013 (has links)
DLUHOS, J. Effect of the human factor on small aircraft accident. Brno: Brno University of Technology, Faculty of Mechanical Engineering, 2013. 90 s. Supervisor Ing. Jiří Chlebek, Ph.D. The Master’s thesis focuses on the safety of civil aviation, which is in 80% of the accidents caused by Human Factor, Human Error or just Pilot Error. The main goal of this Master’s thesis is evaluation and assessment of the causes of aircraft accidents of general civil aviations operations of the Czech Republic. In the practical part of the Master’s thesis were analyzed accidents of aircrafts in the category with maximum take of mass to 2250 kg and ultra light aircrafts incurred in the Czech Republic from 2006 to 2012. In the conclusion were analyzed main causes of the aircraft accidents and were proposed further measures to reduced accidents caused by Human Factor.
44

Speciální metody mikrovlnných vektorových měření / Special Methods for Microwave Vector Measurements

Urbanec, Tomáš January 2008 (has links)
Theoretical principles of the sixport measurement method are presented. Description of theoretical design and influence of its parameters on measurement precision follows. Simple sixport measurement system was made and its parameters are described. As the main thesis contribution there is described a new approach to method with more detectors in the system. Mean features are more valid sixports at one specific frequency and frequency bandwidth aviable up to 1 : 100 and more. Such a wideband measurement system was designed for the frequencies between 50 and 2680 MHz and its parameters are presented in the work.
45

Širokopásmová vektorová měření / Wideband Vector Measurements

Dvořák, Radek January 2013 (has links)
Thesis describing design and measurement of the vector reflectometer system based on six port principle. The expectations for precision measurement in wide bandwidth system are explained. Diode linearization problem is described and the calibration method especially designed for the wide band systems is explained. And finally several data processing methods for the final result decision are compared.
46

Vliv anorganických plniv na elektrické vlastnosti epoxidových pryskyřic / Inorganic fillers effect on electrical properties of the epoxy resins

Doležel, Tomáš January 2016 (has links)
This thesis deals with problems of electrical insulation materials based on epoxy composites used in the electronics industry. This thesis is divided into theoretical part focused on composite materials, their technological processing and diagnostics. It also describes dielectric materials, their properties and events taking place in their structure. The experimental section describes the measurement of electrical properties of samples of electrical insulating materials with different types of fillers.
47

Analýza synchronního stroje s permanentními magnety o výkonu 1,1 MW / Analysis of 1,1 MW permanent magnet synchronous motor

Homolová, Romana January 2020 (has links)
This thesis deals with the elaboration of The Permanent Magnet Synchronous Motor and the calculation of its parameters. In the first part, the construction and used permanent magnets of this motor are listed here. The next part of the thesis contains a short overview of the stator windings, the calculation of the winding factors and calculation of the basic parameters of the stator winding. The calculation of the magnetic induction in the air gap is also illustrated here. The result is recalculated by using the Carter factor and then the value of the first harmonics of air-gap flux density is determined. The result is compared with the analysis in the program FEMM. The next part of the thesis is creating a comprehensive overview of the machine using a replacement circuit diagram and phasor diagrams. Finally, the thesis contains model created in RMxprt and ANSYS Maxwell. The results of the model analysis are compared with the analytical calculation
48

Tepelně technické posouzení novostavby rodinného domu

Kunert, Martin January 2014 (has links)
The thesis deals with the issue of thermal-technical assessment of new building of family house which is going to be built in the near future, based on provided documentation. Considering the building system, it is a wooden house, which is going to be realized through a "balloon frame" method. The goal of this thesis is to propose suitable composition of individual constructions, to asses them and to develop basic construction details of them which will be evaluated based on internal surface temperature and linear thermal transmission. Based on intermediate results the thermal loss of the family house will be calculated which is a crucial input for proposal of the heating system. Another part focuses on proposing of controlled ventilation system and creating energy performance certificates of the building.
49

Rozbor leteckých nehod všeobecného letectví ČR v souvislosti s věkovým zastoupením pilotů / Analysis of general aviation accidents of the Czech Republic in relation to age representation pilots

Olšanová, Markéta Unknown Date (has links)
The master’s thesis investigates the influence of a pilot‘s age and experience on the probability of aviation accident related to general aviation in the Czech Republic. The results were obtained using statistical analyses of data from aircraft accident final reports. The aim of the thesis is to propose the ways of decreasing the number of accidents caused by the analyzed factors while taking into account the current aviation legislation.
50

Human-Computer Interaction - spolupráce člověka a počítače / Human-computer interaction - cooperation of human and computer

Nápravníková, Hana January 2017 (has links)
The work is devoted to Human-computer interaction and its main goal is to get closer to the field. The first part describes two main areas, namely Cognitive Science and Cogni-tive Psychology, from which HCI is based on. The second part deals specifically with Human-computer interaction, the history of the origins, aspects of human factor, ele-ments of interaction and modeling of interaction together with examples from everyday life.

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