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Water Politics
Dvořáková, Dana ; Vojtěchovský, Miloš (referee) ; Sterec, Pavel (advisor)
The work is aimed at familiarizing the audience with the problems of water in the Czech Republic and its distribution within the landscape. However, its character, which approaches to documentary work, doesn´t explicitly describe the problem, but rather attempts to visualize it and give the viewer space for his own imagination. The work draws in contrast the examples of fine functional interventions in the landscape with examples of monstrous concrete structures - dams. It points to problematic places and tries to convey to the viewer the current issue not only in the chosen location. The main thing is the lyrical performance, which evokes not only a video but also the sound part and the narrative that explains the whole problem. The video is not purely informative, its specificity is also focused on the enjoyment of the viewer. He plays with documentary techniques but does not use them as a priority. The shots are deliberately chosen so that the concrete buildings look monumental and have their seriousness. The background of the shots also shows the time of their creation. This element is supposed to be critical and is supposed to be opposed to studies that use old plans to build new water reservoirs that do not give space for a more efficient solution. The work also touches on the overproduction and issues of today's modern agriculture.
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Advanced Rendering in OpenSceneGraph Library
Ondruška, Jiří ; Přibyl, Jaroslav (referee) ; Švub, Miroslav (advisor)
This bachelor's thesis presents OpenSceneGraph library and its use with shaders written in OpenGL Shading Language. First of all it presents the basics of GLSL. Next chapter introduces the basics of OpenSceneGraph library. Following chapters are about different shaders. First is vertex displacement mapping, followed by cartooning and the last one is water surface.
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Stabilization of the flooded sand pit near Hulín
Tomšej, Lukáš ; Svoboda, Ondřej (referee) ; Šlezingr, Miloslav (advisor)
The diploma thesis assesses the current state of the Hulín gravel and sand plant and pays attention to abrasions of severely damaged banks of the reservoir. With the help of the design of a suitable biotechnical stabilization, the receding of the shoreline in the section of interest will be prevented. The basis for the processing of appropriate bank stabilization proposals is the results achieved using a method of determining shore retreat. The individual developed variants of the bank remediation solution emphasize the use of vegetation support, especially suitable bank stands to ensure the stability of the banks and protection against abrasion.
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Rendering of Underwater Scenes
Smutný, Martin ; Vlnas, Michal (referee) ; Milet, Tomáš (advisor)
Cílem této práce je vykreslení podvodních scén a světelných efektů typických pro takové scény interaktivně ve vysoké kvalitě. Práce se konkrétně zaměřuje na fyzikálně založené vykreslování oceanických vod, které mají komplexní a vysoce proměnlivé optické vlastnosti. Vykreslování takových prostředí vyžaduje simulaci simulaci rozptylu světla uvnitř vodního objemu. Byly důsledně prozkoumány relevantní metody pracující v reálném čase. Byla navrhnuta jednoduchá oceanická scéna, které se skládá z procedurálně generovaného terénu, vodního povrchu a atmosferického modelu. Byl navrhnut fyzikálně založený bio-optický model vodního objemu. Rozptyl prvního řádu je aproximován, tím, že jsou vykreslovány fyzikálně založené povrchové a volumetrické kaustiky, vznikající lomem světla skrze vodní povrch. Vícenásobný rozptyl je aproximován na základě vlastností takových vod. Navržené techniky byly implementovány. Scénu je možné vykreslit z pohledu nad i pod povrchem vody. Techniky vykreslují efekty vodního objemu v přijatelné kvalitě a interaktivity bylo dosaženo na GPU nižší třídy.
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Rendering of Underwater Scenes
Smutný, Martin ; Vlnas, Michal (referee) ; Milet, Tomáš (advisor)
Tato práce se zabývá vykreslováním realistických podvodních scén pomocí technik v reálném čase. Práce se zaměřuje na vykreslování oceanických vod, které mají komplexní a vysoce proměnlivé optické vlastnosti. Vykreslování takových prostředí je náročnou oblastí v počítačové grafice, která zahrnuje simulaci rozptylu světla uvnitř vodního objemu. Jsou zkoumány metody počítačové grafiky pracující v reálném čase pro vykreslování a simulaci oceánů. Jsou navrhnuty techniky aproximující rozptyl první řádu a vícenásobný rozptyl pro vykreslení vodního objemu za pomocí krokování paprsku. Optické vlastnosti objemu jsou popsány pomocí fyzikálně založeného bio-optického modelu. Navíc, jsou vykresleny povrchové a volumetrické kaustiky odpovídající lomu světla skrze simulovaný vodních povrch pomocí Fourierovy transformace. Navržená technika pro vykreslování scén nebyla implementována v plné podobě. Byly implementovány pouze některé navržené techniky a s nimi byly provedeny experimenty zvlášť.
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Role of plants in the greenhouse gas budget of a sedge fen
NOVOTNÁ, Jitka
Wetlands play an important role in the global carbon cycle because they fix or release carbon dioxide (CO2) and are a source of atmospheric methane (CH4). The dynamics of the exchange of these greenhouse gases is determined mainly by the height and dynamics of water level, temperature and vegetation structure and biomass. The aim of this study was to evaluate the effect of plants with a dominant sedge, Carex acuta, on CO2 and CH4 emissions from a sedge fen on a model site ?The Wet Meadows? near Třeboň. This study included field research using a method of manual emission chambers in order to monitor the differences in the emissions between hummocks with vegetation and hollows without vegetation. In addition, aboveground plant biomass, water level and temperature were followed. The field research was supplemented with a mesocosm experiment in which the influence of water regime on C. acuta biomass production was evaluated. The results of the field research show that water level had a significant effect on CO2 emissions only in the hollows. Soil temperature was an important factor on both micro-sites. The presence and biomass of the plants had a substantial effect on the amounts of CO2 emissions, but only in the second part of the vegetation season, when the plant aboveground biomass reached its seasonal maximum. CH4 emissions were significantly influenced by the water level and its previous dynamics but not by temperature. An important factor was also the presence of sedge hummocks, which vented considerable amounts of CH4 into the atmosphere when their basal parts were flooded. Fairly small amounts of CH4 were mediated by the plants at water levels between -20 cm and the soil surface. A conceptual model has been created for the conditions of 2014 in order to estimate the effect of the C. acuta dominated vegetation of the hummocks on carbon emissions and its balance. The carbon assimilation into plant biomass exceeded not only the carbon emissions mediated by the plants, but also the emissions from the whole hummocks. Approximately 130 g C m-2 per vegetation season was stored into the soil owing to the plants. The mesocosm experiment indicated that the plants of C. acuta formed the greatest belowground biomass as well as total biomass in the limosal ecophase followed by the plants subjected to a spring flood.
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Stabilization of the flooded sand pit near Hulín
Tomšej, Lukáš ; Svoboda, Ondřej (referee) ; Šlezingr, Miloslav (advisor)
The diploma thesis assesses the current state of the Hulín gravel and sand plant and pays attention to abrasions of severely damaged banks of the reservoir. With the help of the design of a suitable biotechnical stabilization, the receding of the shoreline in the section of interest will be prevented. The basis for the processing of appropriate bank stabilization proposals is the results achieved using a method of determining shore retreat. The individual developed variants of the bank remediation solution emphasize the use of vegetation support, especially suitable bank stands to ensure the stability of the banks and protection against abrasion.
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Water Politics
Dvořáková, Dana ; Vojtěchovský, Miloš (referee) ; Sterec, Pavel (advisor)
The work is aimed at familiarizing the audience with the problems of water in the Czech Republic and its distribution within the landscape. However, its character, which approaches to documentary work, doesn´t explicitly describe the problem, but rather attempts to visualize it and give the viewer space for his own imagination. The work draws in contrast the examples of fine functional interventions in the landscape with examples of monstrous concrete structures - dams. It points to problematic places and tries to convey to the viewer the current issue not only in the chosen location. The main thing is the lyrical performance, which evokes not only a video but also the sound part and the narrative that explains the whole problem. The video is not purely informative, its specificity is also focused on the enjoyment of the viewer. He plays with documentary techniques but does not use them as a priority. The shots are deliberately chosen so that the concrete buildings look monumental and have their seriousness. The background of the shots also shows the time of their creation. This element is supposed to be critical and is supposed to be opposed to studies that use old plans to build new water reservoirs that do not give space for a more efficient solution. The work also touches on the overproduction and issues of today's modern agriculture.
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Advanced Rendering in OpenSceneGraph Library
Ondruška, Jiří ; Přibyl, Jaroslav (referee) ; Švub, Miroslav (advisor)
This bachelor's thesis presents OpenSceneGraph library and its use with shaders written in OpenGL Shading Language. First of all it presents the basics of GLSL. Next chapter introduces the basics of OpenSceneGraph library. Following chapters are about different shaders. First is vertex displacement mapping, followed by cartooning and the last one is water surface.
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The Rescue Operations at Fire of the Watercraft on Water Surface Considering the Equipment of Fire Station on the South Bohemia.
BOUBAL, Vojtěch
At the beginning of thesis I want to describe few primary characteristics of the South Bohemia Region. It is a region with unique characteristics, which is frequently visited by domestic and foreign tourists. It is popular for its clean environment, historic monuments and especially for sport and recreational activities near water areas, which South Bohemia region has plenty of. Tourists are also frequently seeking recreational boating activities as ferry services for their travel and recration. The development of this economic phenomenon means more employment opportunities for the region, but it also increases chances of accidents and emergencies due to an unforseen accidents which can threaten the lives and wellbeing of the crew and the environment. Fire protection units should be fitted for an emergencies such as: drowning, drowned person search, icy water search and rescue and rescue in stream waters. The thesis is divided into the theoretical and the practical parts. The theoretical part deals with the definition of basic terms describing the issue of fire of the vessels as well as the tasks and procedures during fire fighting operations. It also presents a possible danger to rescuers exposed during operations such as rescue from the vessel burning on the water. There is a listing of the basic terms related to the complex vessel shape and the aquatic characteristics of the vessel. The practical part deals with the study of publications and current legislation, analysis of the Fire protection Units equipment and their readines for rescue work in case of a vessel fire. The enclosed data map illustrates a water area with ferry service in the South Bohemia Region and selected boarding platforms for fire protection units. It describes the use of container technology; modern and economical way of transportation used by the Fire and Rescue Service of South Bohemia Region since 2004. The proposed fire vessel, mounted on a standardize container frame and equipped with special container with stored technical equipment will be transported to the location of event by container carrier from FRS of South Bohemia Region. My theosis also describes the fire protection, fire equipment, personal protective equipment, equipment for working with hazardous substances, rescue tools, communication and portable emergency equipment which is normally used by the fire units of FRS of South Bohemia Region. To achieve the objective of the thesis and to answer the research questions, I did rely on the reference material obtained via search of the professional literary sources relevant to the Fire Fighting equipment and carrying out rescue work. To process the diploma thesis I did use the following: controlled interview with the station sergeants of various fire stations of FRS of South Bohemia, a collection of internal acts of the Ministry of Interior - General Directorate of Fire Rescue Service of the Czech Republic, a collection of internal acts - Regional Directorate of FRS of South Bohemia, Regulations of Mechanical services of FRS of CR and the methodological aids of the Ministry of Interior of CR. In conclusion I am describing the container of fire vessel and its use for rescue and fire-fighting work on water, as well as places where the terrain does not allow the use of mobile fire fighting equipment.
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