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HYDROGEN ABSORPTION IN A-Co30Fe55B15
Čermák, Jiří ; Král, Lubomír ; Roupcová, Pavla
Hydrogen solved in amorphous alloys (AAs) influences their magnetic characteristics. AAs are also perspective\nas additives that can improve hydrogen storage kinetic in certain types of ball-milled hydrogen storage\nmaterials (HSMs). Therefore, knowledge of hydrogen solubility and hydrogen sorption kinetics in AAs are of a\ngreat importance for aimed design both AAs with optimal magnetic parameters and HSMs with desired sorption\ncharacteristics. In the present paper, amorphous alloy Co30Fe55B15 (an example of the type a-TM1xTM2y Bz ;\nTM - transition metal) was investigated. Hydrogen concentration c H was measured by Sieverts method in\ntemperature interval from T = 150 °C to T = 350 °C under hydrogen pressure p up to 6 MPa. It was found that\nc H was an increasing function of p and its maximum value was typically 0.5 wt.% H2 at 350 °C and 6 MPa.\nHowever, when the alloy was preliminary hydrogen charged (PHC), the pressure dependence of total c Htot in\nthe first absorption cycle(s) is non-monotonous in dependence on PHC conditions. For the sake of comparison,\nthe same absorption characteristics were measured also in Mg2Ni intermetallic that is a common constituent\nin Mg-based HSMs. Comparing Co30Fe55B15 and Mg2Ni, it was concluded that Co30Fe55B15 shows lower\nhydrogen solubility, but much better absorption kinetics.
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ELECTRON BEAM REMELTING OF PLASMA SPRAYED ALUMINA COATINGS
Matějíček, Jiří ; Veverka, J. ; Čížek, J. ; Kouřil, J.
Plasma sprayed alumina coatings find numerous applications in various fields, where they enhance the properties of the base material. Examples include thermal barriers, wear resistance, electrical insulation, and diffusion and corrosion barriers. A typical structure of plasma sprayed coatings, containing a multitude of voids and imperfectly bonded interfaces, gives them unique properties - particularly low thermal conductivity, high strain tolerance, etc. However, for certain applications such as permeation barriers or wear resistance, these voids may be detrimental.\nThis paper reports on the first experiments with remelting of plasma sprayed alumina coatings by electron beam technology, with the purpose of densifying the coatings and thereby eliminating the voids. Throughout the study, several parameters of the e-beam device were varied - beam current, traverse velocity and number of passes. The treated coatings were observed by light and electron microscopy and the thickness, structure and surface morphology of the remelted layer were determined and correlated with the process parameters. Based on the first series of experiments, the e-beam settings leading to dense and smooth remelted layer of sufficient thickness were obtained. In this layer, a change of phase composition and a marked increase in hardness were observed.\n
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Specifics of social work with clients with drug addiction
HANZALOVÁ, Vendula
The number of people in the population who use addictive substances and develop adverse life situations is still growing. This issue is also connected with social, health and legal problems with which the drug user must deal. In this case, those addicted can look for help to institutions such as a contact centre. The theoretical part is focused on three topics. The first describes the terms of drug addiction, its origin, consequences and forms of support. The work deals with theories that are significant to the work. The last topic concerns the specifics of social work in a contact centre. There are selected core activities and techniques specific to this institution. I set the aim for this paper, which was to answer the question of which theoretical approach is best applied by social workers working with drug addicts. Furthermore I was finding out which are the best examples of good practical training. The results after evaluation showed that social workers cannot tell whether they work according to particular theories. Usually there is eclecticism, which means that they collect different experiences and then apply them to the work. The basis for these is a bio-psycho-socio-spiritual model that takes into account the integral concept of personality and the philosophy of Harm Reduction which is the main point of contact work. The research brought the views of social workers, their recommendations, and techniques that are proven by them, and also describe the pitfalls of their work. In my opinion, this work could serve as a good summary of techniques for new workers who would like to work with drug addicts. My results can also be the basis for further studies and research in this area.
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The GIS support to measures on the ground in case of leakage of liquid pollutant on the road
Kolejka, Jaromír ; Rapant, P. ; Zapletalová, Jana
Accidents on roads associated with the leakage of hazardous substances are one of the major challenges encountered by disaster management. Because of the impossibility of predicting the place and time of the event, then it is necessary in the event of such an accident to proceed in quick succession of steps. They are designed primarily to protect human life and health, and then to minimize to property and environment damage. The paper describes the response to this event using GIS tools and generally available geodata. The simulated accident on the D1 highway near Ostrava is applied as a demonstration example.
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Key sequence in the films of directors who work with long sequence shots and with stylization
Ruzyak, Pavel ; BERNARD, Jan (advisor) ; KLEPIKOV, Milan (referee)
This thesis wants to explore long shots alongside with stylization in cinema.
Through three directors are explored possibility and problematic of cinematographic expression through long shots and stylization. Stylisation is connected mainly with mis-en-scène and particular aspects of it – acting, film decoration/props, film space, film sound,...
The terms stylisation and long shot (plan-séquence) are analysed and explored on its own and in the films of the chosen directors.
The main analysed directors are Andrei Tarkovsky, Carl Th. Dreyer and Béla Tarr and their three films (in the same order) - Sacrifice, Gertrud and Satantango.
The chosen directors are from my point of view the best example of the use of stylisation and long shots due to their artistic clarity and coherence.
I try to base this work mostly on my own analysis and thoughts about long shots and stylisation based on the literature, films and my own film works, although I also use quotations from directors/authors and quotations from theoretical works.
The thesis in its form is closest to the analytic and essay study.
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Common features of movies integrating the theater phenomenon into their narrative and stylistic structure
Merková, Hana ; JAŘAB, David (advisor) ; Havas, David (referee)
The subject of this bachelor thesis is the common features of foreign and czech movies integrating theater phenomenon into their narrative and stylistic structure. For better explanation, firstly, the forms, which are not included in the area of interest are described- the audiovisual record of theater performance, film adaptation of dramatic play, or insertion of theater performance into the movie content. In following chapters, three different movie examples working with theater in their structure are being described and analysed. Then, thesis is trying to find the reasoning for the usage of two different mediums and their mutual comunication as a principle of autorship. Finally, thesis is trying to summarize common thematic and formal characteristics of chosen movies.
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Studio Damúza
Řezníková, Veronika ; PROKOP, Petr (advisor) ; SULŽENKO, Jiří (referee)
The bachelor thesis named Studio Damúza analyses the current state of the eponymous production unit, founded 17 years ago as an alternative stage to the DISK Theatre of Prague´sTheatre Faculty of the Academy od Performing Arts. The term "production unit" is explained on the example of several other production units, comparing the operation of Studio Damúza, Jedefrau.org and ART Prometheus. It gives a brief outline of Studio Damúza´s history. If further describes its current operation, financing and attemps at obtaining a production space run solely by Damúza. The poetics of Studio Damúza are characterised through the current repertoire. In the end, the thesis offers several possibilities of advancing the work of Studio Damúza. It looks for problems that create obstacles and tries to offer solutions.
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Dance education of preschool hyperactive children
Lacková, Ivana ; LÖSSL, Jiří (advisor) ; FRIČOVÁ, Marie (referee)
The topic of this diploma thesis is Dance education of preschool hyperactive children. Goal of research is to describe teaching of hyperactive children especially dance lessons.
There is described Attention Deficit Hyperactivity Disorder in the first part of thesis. There is written about special needs of children with ADHD focused on education.
Second part is focused on practical dance lesson of ADHD children. There is described example dance lesson based on theory and practical experience of experts.
The result of research is that supply of special lessons is very limited and it is big pity. In the diploma thesis was recognized that the education with special program should help to children with ADHD and it can be good supplement to standard medical therapy.
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