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The nature of highly permeable flowpaths in the Turonian aquifers in the eastern part of the Bohemian Cretaceous Basin
Starý, Jiří ; Bruthans, Jiří (advisor) ; Datel, Josef (referee) ; Tesař, Miroslav (referee)
The thesis deals with the study of highly permeable porosity and the potential for karstification in the area of the East Bohemian Cretaceous synclines, which are of great importance for water supply. The susceptibility of the rocks to karstification was studied by taking cores and determination of their calcite content and by leaching the cores in 10 % HCl and monitoring of rock disintegration after leaching. A scanning electron microscopy and elemental mapping by microprobe were used to understand the structure and composition of the rock. The nature of the inflow zones to the boreholes was studied by evaluating available well logging data, particularly acoustic well logging, inflow data to the boreholes and by leaching rock samples from cores taken from the depth intervals where inflows occurred. A total of 247 cores taken from both boreholes and surface outcrops were studied. Only 5 % of the samples from the Turonian B, Ca, Cb aquifers that disintegrate from more than 50 % after leaching will form karst conduits in tectonically intact rock. This representation is much lower than in the Jizera Formation in the western part of the Bohemian Cretaceous Basin. Only a small fraction of the samples disintegrate if calcite content is below 78 %, the majority show no or very little disintegration. Only...
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Wireless Control of Desktop Presentation Using Mobile Phone with Bluetooth
Tesař, Miroslav ; Letko, Zdeněk (referee) ; Novosad, Petr (advisor)
The project aims to relieve a person performing a notebook or desktop computer based presentation of a need to control the presentation by a keyboard. The system uses a mobile phone with mobile Java and Bluetooth technology to communicate with the computer. The project focuses on the use by a wide range of mobile phones and it is independent of the presentation program using separate definition of user controls. This document also contains a brief introduction to mobile Java technology and Bluetooth.
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OpenStreetMap Terrain Mapping Mobile Application
Tesař, Miroslav ; Láník, Aleš (referee) ; Bartoň, Radek (advisor)
This master's thesis deals with creating OpenStreetMap terrain mapping mobile application. The introduction describes project OpenStreetMap and the methods of collecting data. After that mobile platforms specifics are described. Android and OSMTracker are introduced in the next part of this work. Analysis is followed by description of implementation of OSMTracker extension.
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Vliv přeměn dřevinné skladby lesa na bylinné patro v modelovém území u Stráže nad Nežárkou
Tesař, Miroslav
The aim of this thesis was to evaluate the effect of changes in species composition on the structure of ground vegetation. In the Dubovice forest complex (near Stráž nad Nežárkou, in the Jindřichův Hradec district) in the vicinity of the Homolka hill, four types of stands were studied: young beech stands, young spruce stands, deciduous and coniferous coppice. Seventy-six phytocenological images were recorded, and soil sampling from the A horizon was carried out on each of them, and the strength of this horizon was measured. From the samples, the soil pH/KCl reaction and the percentage of humus content were determined. Using univariate and multivariate analyses (canonical and detrended correspondence analysis), the relationship between the variables of interest was verified. The Kruskal-Wallis test was used for statistical evaluation of the pedological results. In the study area, a statistically significant relationship was confirmed between the woody plant composition and herbaceous and moss cover, as well as for humus content and A horizon strength. The predicted effect of tree canopy composition was not demonstrated on the pH/KCl variation, and the relationship between age and species diversity and herbaceous canopy cover was also not demonstrated. Stand transformations have a positive effect on ground vegetation diversity and soil habitat characteristics.
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Design of Web Aplication for bond Management
Půža, Lumír ; Tesař, Miroslav (referee) ; Dydowicz, Petr (advisor)
This thesis deals with the design of a web application for bond management. The thesis has three main chapters. The first chapter describes the theoretical background required for the analysis, the implementation of the change and the development of the web application. In the second chapter, the company's analysis and the current state of bond management. The last part of the thesis is the design of the change, the creation of the application and its deployment. The result is the successful deployment of the web application.
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Time variabilty of soil hydraulic properties and their impact on soil moisture estimation
Šípek, Václav ; Vlček, Lukáš ; Tesař, Miroslav ; Zelíková, Nikol ; Hnilica, Jan
The study was focused on the temporal variability of saturated hydraulic conductivity in an experimental plot covered by spruce forest and investigated benefits of its incorporation into soil water balance model. The results showed that the higher saturated hydraulic conductivity (33.6-44.8 cm hr-1) was observed in summer period compared to lower values (13.2-22.3 cm hr-1) in the winter period. The use of seasonally variabile saturated hydraulic conductivity improved the efficiency of soil water balance model in terms of lower root mean square error between observed and simulated volumetric soil water content by 33.2 %. The Nash-Sutcliffe coefficient rose from 0.34 to 0.68.
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Hydrology of small basins 2023
Hnilicová, Soňa ; Tesař, Miroslav
The book is a collection of scientific contributions to the Conference "Hydrology of small basins". The conference topics were: 1. Changes in the regime of water resources in small basins; 2. Complex monitoring a and water storage balance in small basins; 3. Hydrological extremes (flash floods, drought); 4. Effect of land use and land cover on water balance; 5. Hydrophobicity and transportation processes in soil; 6. Hydrological modelling und uncertainties; 7. Biogeochemical fluxes in a small watershed and eutrophication of surface waters; 8. Mountainous experimental small basins (deposited precipitation, snow regime, …); 9. New methods, techniques and instrumentation in hydrology and hydroecology.\n
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Character of groundwater flow in highly permeable sediments of Bohemian Cretaceous Basin
Kůrková, Iva ; Bruthans, Jiří (advisor) ; Datel, Josef (referee) ; Tesař, Miroslav (referee)
The study focuses on water flow in sandstones and sandy limestones of the so-called facies transition in the western part of the Bohemian Cretaceous Basin. The area between Turnov, Milovice, Úštěk and Doksy is a part of most important aquifer in the Czech Republic, in terms of water supply. However, there are considerable discrepancies in hydrogeological concepts regarding groundwater flow in this area. The prevailing opinion is that quartz sandstones form the main aquifer, although largest springs are partly located outside the area of their occurrence. The aim of the work is therefore to determine which rocks are the source of the large springs and where diffused seepage predominate. Furthermore, to characterize the possibility of rock karstification, to describe the character of the channels and the flow in them, and at the same time to compare it with the flow in the adjacent porous environment in selected areas. Thermometry (winter profiling of temperature and conductivity along watercourses) was carried out in order to distinguish areas with large springs, diffused seepage and stream segments without any drainage. The karst potential of rocks was determined using calcimetry and adopted leaching tests. To determine flow velocity in karst channels and to characterize the channels, a series of...
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Amount and differences in snow accumulation in the Šumava region
Procházka, J. ; Šustková, V. ; Tesař, Miroslav
The Šumava Mts. (Bohemian Forest) represents the most extensive mountainous range of the Czech Republic and due to its area and altitude it catches the substantial portion of the winter precipitation in the snow form. Unfortunately, the more continuous information on snow characteristics from the highest and remote regions of the Šumava Mts. has been in effect missing till recently. From this reason the activities focused on the more detailed expeditionary field measurements of the snow depths and snow water equivalent. The space analysis of point snow cover measurements the appropriate tools were used: ArcGIS (ESRI), orographical interpolation, LLR methods and the methods of ClidatDEM used in the Czech Hydrometeolological Institute.
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