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The Place of the Forest in Fourteenth- and Fifteenth-Century Literary Sources, a Czech-French-English Perspective
Turek, Matouš ; Nejedlý, Martin (advisor) ; Woitsch, Jiří (referee)
The master thesis presents and analyses a range of different ways in which the motif of the forest was treated in late-medieval literary sources as an element of thematic and compositional construction of the text. At the theoretical basis of the thesis is the concept of diachronic text reception and adaptations which bring along the transmission and simultaneous transformation of the use of topoi, while this process is being related to the development of the literary chronotopos signalizing a change in the public's horizon of expectation. The majority of sources for analysis are drawn from Czech sources of the long 14th century - courtly and chivalric romance, the Old Czech verse legend of St. Procopius and the Dalimil Chronicle - while a shorter part of the thesis is devoted to the presentation of individual tendencies in the development of the use of the forest topos in English and French literary allegory of the 14th and 15th centuries. In detailed comparison of specific passages from Old Czech texts with their actual models in other languages (Old Middle German, Latin), the thesis demonstrates, upon the example of the forest topos, that topoi do not represent fixed, inalterable clichés, but actually exhibit intense shifts in function, content and theme.
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DES modelling of the turbulent flow
Benešová, Stanislava ; Brechler, Josef (advisor) ; Dolejší, Vít (referee)
This thesis deals with the study of hybrid RANS/LES methods for modeling of turbulent flow with a focus on the DES method and its modifications. The theoretical part focuses on the description of turbulent flow and classical methods for its modeling. The following describes the hybrid RANS/LES methods, their principles and categories. Finally, the DES method is described in detail together with its improvement in form of DDES and IDDES methods. The practical part is devoted to the testing of DES and DDES on benchmark problems. We describe here used software OpenFOAM and numerical methods used to discretize the equations. One part is devoted to grid generation. The DES and the DDES methods are tested on two benchmarks: flat plate with zero pressure gradient and backward facing step. The simulaton results are compared with experimental data, with a focus on good modeling of the velocity profile near wall, turbulent viscosity and skin friction coefficient. Powered by TCPDF (www.tcpdf.org)
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Land cover changes in Bohemian Switzerland using remote sensing data
Lihanová, Kristýna ; Štych, Přemysl (advisor) ; Součková, Jana (referee)
Land cover changes in Bohemian Switzerland using remote sensing data Abstract The purpose of this project was to classify land cover in The National Park Bohemian Schwitzerland from LAMDSAT data (1999, 2002, 2009), FORMOSAT data (2006) and QuickBird data (2009). Data used in this paper are described in details. The method used for images classification was method of unsupervised classification in Geomatica program. Created classes were merged into the final five classes. An Assessment of accuracy of classification showed that results don't reflect reality. Mixed forests are the biggest problem because they can be mistaken for coniferous or deciduous forests. Classification results were smoothed low pass filer and converted into a vector formats in ArcGIS program. For the years 2006 and 2009 was counted the vegetation indexes NDVI and LAI. Results showed that the densest vegetation is in deciduous forests. Changes in land cover were assessed in two ways. Shares of each class were calculated for all years. Overlays layers are created in ArcGIS. Overlap was conducted between 1999 and 2002 and between 1999 and 2009. Most changes were found between the coniferous and mixed forests. These changes are caused by the inaccuracies in classification. Key words: land cover, Bohemian Switzerland, forest, Landsat,...
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Impact of forest disturbances on the runoff in the central Sumava Mts.
Bartůňková, Kristýna ; Langhammer, Jakub (advisor) ; Jeníček, Michal (referee)
Impact of forrest disturbance on the runoff in the central Šumava Mts. ABSTRACT The diploma thesis deals with the influence of forest disturbance, as for example wind and bark beetle calamities, to the runoff characteristics in the central Šumava Mountains. The analysis of five precipitation events and their runoff responses was applied to seven small experimental catchments with different stage of disturbance. Studied catchments were catchments fo Tmavý, Roklanský, Březnický, Javoří, Cikánský, Černohorský potok and Antýgl. Chosen precipitation events belong to the years 2009 and 2010 and to warm half year, when no snow cover can influence the runoff. Similarity of catchments was established by cluster analysis. For comparison of the reaction of single catchments to the same precipitation event was used simple comparison of precipitation and runoff data and waves. Key words: forest disturbance, central Šumava Mountains, rainfall-flow conditions, cluster analysis
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Activity of lower oesophageal sphincter in healthy patients in various postural positions
Beranová, Kateřina ; Bitnar, Petr (advisor) ; Hlava, Štěpán (referee)
The aim of this thesis is to describe information about GERD, its etiology, anatomy, pathology, treatment options and rehabilitation in patients with GERD. Lower oesophageal sphincter and antireflux barrier. The study was approved by the ethics committee. 30 probands were included in the study and their health status was verified using the Health Related Quality of Life questionnaire. A manometric catheter was inserted, proband was instructed to maintain various postural positions. Lying supine with lower limbs elevated above the surface, lying supine with lower limbs elevated above the surface with head fixated manualy, sitting and standing position, load in the center of gravity 3/6/9 kg, load outside the center of gravity 3/6/9 kg, lifting of the office chair. It has been shown that LES pressure increases in all postural positions compared to resting pressure. The positions activate the diaphragm to demonstrate the postural function of the diaphragm. The most significant change in LES pressures was in the postural position of lying supine with lower limbs elevated above the surface, the LES resting pressure of 20.34mmHg changed to the pressure of LES 40.92mmHg. Clinical experience and studies have shown that patients with GERD have disposition for respiratory and / or vertebrogenic difficulties....
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Using urban and suburban parks and cycling roads by kindergarten in Prague
Damková, Nikola ; Kuhnová, Věra (advisor) ; Pokorný, Ladislav (referee)
The thesisdeals with theuse ofurban andsuburbanparksand cycle routes by neighbouringkindergartens. The theoretical part ofthe thesissummarizesthe basic terminology, explains the concept offorest,park, forest park, bicycle path.Furthermore,it is trying todefinetermsrelatedto the topic(movement, motor skills, and sports). Separatechaptersare alsodevoted toforestpedagogy, its history andthe emergingtrendof forestnurseries. The practicalpart of thethesisintroducesmethodsof research.Theseare thequestionnaire survey, interview and observation.Research ispart ofthe weeklyproject for childrenfrom kindergartens, created specifically forthis topic. Subsequently, thethesisseeksto answer the stated hypotheses. It examines therange ofthe activities of childrenduring their stayoutside,motivationof childrento activities, the use of cyclingkindergartens. It examines whichoutdoorlocationchildrenin kindergartenprefer for their morningactivities. Thethesisconcludeswith an overview of significant Pragueparks. Keywords: park, forest, cycling, physical activity, nature, kindergarten
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The influence of morphological and microstructural characteristics to land snail degradation in forest environment
Říhová, Dagmar ; Juřičková, Lucie (advisor) ; Bogusch, Petr (referee) ; Čejka, Tomáš (referee)
The decomposition of land snail shell is a complex process involving a number of factors and influences, including the characteristics of conchs themselves. In particular, it is the shell size with which the progress and the rate of degradation are tightly bound. Post-mortem changes begin with the loss of the original colour and, in the case of transparent species, by the opacification of the shell wall. Subsequently, the periostracum disruption and dissolution of calcium layers occur. However, this sequence may be reversed for some small species (e.g. Columella aspera, Nesovitrea hammonis). Animals mechanically destroy empty shells, humic acids from the substrate cause their artificial dyeing. Fungal mycelium or colonies of Streptomyces grow on the surface of the conchs. The plant roots are also involved in shell decomposition. While degradation of large shells starts with periostracum disruption and subsequent ostracal dissolution, periostracum of small shells persists even after dissolution of ostracal layers. The phenomenon is caused by high resistance of the periostraca of small species. In the case of large shells, periostracum has primarily a "building" function during shell formation, and sometimes it is flaking off already during the snail's life. For small species, it is an important part...
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