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Vliv lesnického hospodaření na stav a kvalitu půd pařezinKonečná, Martina January 2016 (has links)
The present study deals with description of the state and quality of soil in coppice and comparing these variables with soils in the stands with a different type of management. One of the goals was also to describe the impact of forest management on the top soil. In order to implement the research were established four research plots on Hádecká platform so as to be within the same group of forest types, with similarity in tree species composition and history of the management, and also that differs by current type of management (false high forest without management, high forest, false high forest with active management and young coppice. The data collection was biphasic, in the first phase were measured the dendrometric data from which were subsequently calculated species composition within the research plots. Simultaneously was carried out sampling of humus and taking mixed samples of soil from the Ah horizon. In the second phase were collected undisturbed soil samples using the soil sampler. Samples from soil surveys were laboratory processed, quantified for each group of soil properties and then statistically evaluated by using ANOVA and PCA. The results have proven that the influence of forest management on state and quality of soil is not significant, it was also shown that the soil within the coppice was overall in favorable conditions. At the end of the present study is separated chapter dedicated to the application of the results in recommendations for forestry practice.
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České překlady románů Andrey Camilleriho / Czech translations of Andrea Camilleri´s novelsDRÁBKOVÁ, Lucie January 2013 (has links)
In my Thesis I deal with the translation theory based on the work and novels of the Sicilian writer Andrea Camilleri. Analyzing his Czech translations, and comparing them with the experiences and models from Alice Flemrová and Kateřina Vinšová when interpreting the typical Camilleri style. My observations were based on the author's life and what shaped him into the entity known by his readers.
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Meta-analysis of methodological artifacts of the phylogenetic imbalance. / Meta-analysis of methodological artifacts of the phylogenetic imbalance.SMRČKOVÁ, Jana January 2011 (has links)
The influence of possible methodological artifacts (e.g. type of data or tree construction methods) on the tree topology was evaluated. A total of 413 phylogenetic trees was downloaded from the tree repository TreeBASE. Three indices of topology imbalance were employed, namely, Fusco & Cronk index, weighted average, and Colless index. The study reveals that methodological artifacts have probably a weak influence on the tree shape. Therefore, patterns in tree balance could reflect macroevolutionary processess, not a methodological bias.
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Návrh optimálního tvaru trupu amfibie „Seagle“ / Optimal Fuselage Design of Aircraft-Amphibia “Seagle”Weis, Martin January 2009 (has links)
This master’s thesis deals with the analysis of geometric shapes fuselage amfibie SEAGLE and propose optimal shapes for the improvement of hydrodynamic and aerodynamic properties.
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Výpočtová simulace procesu třískového obrábění / Computational simulation of machiningZvěřina, Martin January 2010 (has links)
This Master’s thesis process list of different finite element programs, which allows us to simulate process of material separation. We estimated their advantages and disadvantages in the end. In program ANSYS Ls-Dyna was created 3D model, in which we simulate process of orthogonal splinter machining and we study dependence of changes different input parameters (tool geometry, depth of cut, cutting speed) on the chip form and forces rate between tool and workpiece.
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Vyřezávání plošných tvarů z polystyrenových desek pomocí průmyslového robotu / Hot wire robot cutting of polystyren boardsDvořák, Roman January 2012 (has links)
This thesis deals with the cutting of flat shapes of polystyrene by industrial robot using Robotmaster. There are some variants of the shaped components that can create by using Robotmaster. The task of the work is also a demonstration task in the realization of use a resistance wire as a tool and polystyrene boards as a workpiece material.
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Měření tvaru zatížené pneumatiky / Shape Measurement of Loaded TyreHlavatý, Jiří January 2015 (has links)
This thesis is focused on measuring the shape of loaded tire and finding dependencies between inner tire pressure, load and the influence of these parameters on the resulting shape of the tire. Data for these dependencies were obtained by using a constructed measuring stand and 3D optical technology. Found dependencies describe the change in shape of the tire in specific mathematical functions, and served the creation of a parametric model of the tire. The main finding of this thesis is that the tire is actually behaves according to dependencies described by varying degrees of polynomial function.
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Dynamické vlastnosti obrobku při soustružení / Dynamic characteristic of the workpiece in turningNádvorník, Vít January 2016 (has links)
The contens of master thesis is theoretical analysis of vibrations during turning and possibillity to eliminate them, measure dynamic compliance and modal paramteters. The goal of experimental part is to determine the effect of material and type of clamping for three shafts at natural frequency, mode shape and dynamic compliance. Using these results we can optimized cutting parameters and to better overcome vibration during machining.
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Hodnocení ekologických limitů a zdravotního stavu hlavních edifikátorů lesních ekosystémů v oblasti Přírodní lesní oblasti PolabíSoukup, Tomáš January 2019 (has links)
This thesis occupies with environmetal limits and the european beech and oak trees in natural forest area 17–Polabí. Forests, whose age was at least 100 years, were mostly selected for the evalution. Signs of tree growth of both species has been reported in forest stands. It was also evaluated the quality and even the shape of the crown and the quality of the trunk. Last but not least, the incidence of harmful agents has been assessed. Data collection took place in the summer of 2018. In consequence, it was found that there are not ecological limits of both species in this area. At the same time it was it was found that there is no statistically significant difference between first vegetation tiers and second vegetation tiers. The both species growth is very similar, if not the same. Moreover, as expected, the difference between the 2nd and 3rd vegetation tiers in both the total height and the deployment height was proved. At the same time there has been no cause significant damage. Only Lymatria dispar has been detected relatively abundant occurrence.
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Vodní režim krajinného segmentu lesního porostu v podmínkách pařezinového hospodařeníVichta, Tomáš January 2019 (has links)
This diploma thesis deals with the water regime of soils of the forest landscape segment. The object of the research was the permanent study plot Ušákov with low forest (simple coppice) and high forest (abandoned simple coppices) at the Training Forest Enterprise Masaryk Forest Krtiny, Bilovice forest district. The main aim of the thesis is to evaluate the dynamics of the soil water regime during the hydrological year 2018 in this landscape segment in relation to the thinning (basal area of each polycormon was reduced to 50%) and 30% reduction of throughfall precipitation in coppice stand and also in relation to the different forest management. The results show that in the thinned coppice stands is soil moisture higher during the whole investigated season, while in the coppice stands with reduced throughfall is lower, the effect of the different forest management on the soil moisture was not conclusively proved. Another task of this thesis is also to introduce the basic outline of the methodology of how to evaluate continually and ambulatory acquired soil water regime data from any landscape segment. Based on this method, individual humidity values of the studied soils were analyzed.
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