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Odolnost povrchové úpravy vůči oděru v závislosti na klimatických podmínkách
Kupský, Martin
This bachelor thesis is focused on issues of finishes quality. The main objective is to determine the abrasion resistance of finishes of furniture components. For base material for the preparation of test samples were chosen spruce boards. The testing samples were, after formatting and preparing the surface, finished with water-based coating system and exposed to five different climatic conditions. Gloss and change of colour were measured for each test sample before and after exposure to climatic conditions. After exposure to climatic conditions, the surface treatment of the test samples was tested to abrasion resistance and to scratch resistance.
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The effects of vegetative roofs onto the thermal stability of a building object
Majsniar, Michal ; Moudrý, Ivan (referee) ; Vimrová,, Hana (referee) ; TROJAN,, Karel (referee) ; Šťastník, Stanislav (advisor)
Dissertation deals with thermal technical assessment songs vegetation roof with moisture, the more the influence of vegetation on the roof thermal stability of the structure. The aim of this work is to demonstrate the beneficial effect of vegetation roofs, specifically growing Formation of thermo-technical point of view on the favorable temperature conditions in the building. Such speech can be captured only if it is judged-temperature profile dynamically daily operation of real marginal climatic temperatures. Using a stationary or quasi-stationary boundary climatic temperatures which are usually used for the determination of the energy performance of buildings, said effect can not be collected. Demanding simulation calculation, which apply material properties - thermal conductivity, density and thermal capacity, but gives a realistic picture of the thermal processes in progress not only in the roof structure of the building, but also across the entire circuit construction of a building. During the preparation of the dissertation was assembled machine program that works with the energy flow between rooms in the building and the surrounding environment. Furthermore calculates temperature gain of residence of persons, internal lighting and sunlight. The values of the internal environment are calculated from surface temperature, relative humidity, air exchange and, of course, the indoor air temperature with hourly weather data. In constructing the program was included in the calculation of the solar radiation both on flat and on an inclined surface. The output of the energy value and temperature conditions in individual rooms, which include not only thermal insulation but also thermal storage properties of an object. Using experimental measurements were able to demonstrate that the calculated values closely correlate real thermal processes, so it can be demonstrated through the calculated results of the vegetation roof has a favorable effect on the thermal state espe
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Autotrophic microbial growths on needles of gymnospermous trees in relation to air pollution
Nováková, Radka ; Neustupa, Jiří (advisor) ; Hodač, Ladislav (referee)
Aero-terestric algae occure on a wide range of substrates, such as soil, plant, stone and rock surfaces and also on a variety of anthropogenic substrates. Morphological convergence towards coccoid or filamentous thalli, caused by frequent dessication stress, is typical for this group. Algae are frequently used for biomonitoring of various biotopes, mostly water biotopes, but also for bioindication of air quality. My diploma thesis is based on a study of autotrophic microbial growths on spruce and yew needles in relation to various air quality measures evaluating air pollution of sites. The results show that the occurence of microbial growths on needles is primarily influenced by the orientation towards cardinal points. However, the air pollution factors also proved to be significantly related to the quantitative measures of the microbial assemblages. Among them, the relative proportion of algae in microbial growths was the most tightly related to air pollution.
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The effect of climate conditions on wheel-rail contact adhesion
Nohel, Rostislav ; Horák, Zdeněk (referee) ; Omasta, Milan (advisor)
Presented master’s thesis is focused on the experimental research of influence of climate conditions on wheel-rail adhesion, where climate conditions are meant two parameters: ambient air temperature and air humidity. These parameters always affect wheel-raid contact and their values change significantly during the year. For presented experimental research was used tribometer Mini Traction Machine (MTM) in configuration „ball on disc“. For determination of influence climate conditions was first found out the influence of air humidity on adhesion at certain temperatures, which varied between (1 to 50) °C. These experiments were performed for two types of discs, where one disc was exposed to leaf extract contamination. After that was assembled influence of both parameters (air humidity and ambient air temperature) on adhesion in the form of a 3D map, where were distinctioned states, when condensation has occured and when didn‘t. Obtained results in this thesis will be used for optimalization of rail vehicle control systems.
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Breeding of Eastern Rosellas in European Climate Conditions
Baierlová, Nikola ; Ledvinka, Zdeněk (advisor) ; Zita, Lukáš (referee)
Summary
This work is aimed at parrot breeding of genus Rossella in Europe, in different climatic conditions than the conditions in the Southeast and South Australia where the birds come from. Here, you can find overview of their occurrence in nature, evaluation of biotope, feeding and information on breeding in human custody.
Eastern Rosellas (Platycersus eximius) live in pairs and each pair is very protective
of their own nesting teritory. Outside of the nesting season, Rosellas are moving around the land in small groups.
In nature, these parrots eat grain from grass or weeds, seeds from bushes, trees
and of course fruit.
The nesting season starts around february and lasts until august. In nature Rosellas nest in hollow trees, branches, tree stumps, columns, on top of fence post and even in rabbit holes.
The best option when it comes to breeding Rosellas, is an outside aviary, which best represents their natural habitat. European winter causes them little to no trouble, the same goes for severe frost, which allows for year-round stay in the outside aviary.
Rosellas have the similar eating habits as their parrot brethren, meaning sunflower seeds, millet, panic grass, canary and oat. An important supplement in their daily diet is green feed(ing), fresh fruit and vegetable, branches to nibble on, mineral substances, and fresh drinking water. During the nesting season and while with young, it is necessary to feed
the birds an egg mixture, it is an important source of protein.
Breeding of Rosellas is fairly effortless, they can easily nest even in small spaces. Ideal size of their bird house would be 25 x 25 x 60 - 70 cm with a fly-in entrance of 7 - 8 cm. It is necessary to hang the bird houses as high as possible in the protected part of aviary. Female lays 5 - 7 white colored eggs, on which she sits 21 - 22 days. Young birds leave
the nest in age between 28 - 35 days and then, are are partly fed additional 10 - 14 days by
the male.
Among the most frequent diseases of this species of pet birds belong those non contagious, e.g. hypovitaminosis, uricosis and, furthermore parasitical ones and pathogens as well as other contagious diseases or feather abnormalities, such as the so called French defeathering.
Breeding of Rosellas does not require an experienced breeder. With proper care, Rosellas can live up to 25 - 30 years and remain fertile their whole lives.
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Endoparasites of horses
Scháňková, Štěpánka ; Langrová, Iva (advisor) ; Bejček, Vladimír (referee)
Nine ponies were randomly allocated to one of three groups (A, B, C). Gradually, these groups of ponies were experimentally infected with third stage cyathostome larvae. Each pony was infected with 30,000 infective cyathostome larvae stored 4 weeks under the natural environmental conditions of the Czech Republic. These animals were examined post--mortem for small strongyle infections from October 2011 to January 2012. Seventeen species of the following Cyathostominae genera were identified: Coronocyclus, Cyathostomum,Cylicocyclus, Cylicostephanus, Gyalocephalus and Petrovinema. Of the 17 species of Cyathostominae recovered, Cyathostomum catinatum, Cyathostomum alveatum and Cylicocyclus nassatus were the most prevalent (100 %). From the entire population of Cyathostominae, 65,6 % were located in the caecum and only 34,4 % in the colon. Only 1,736 (24,6 %) females and 5,329 (75,4 %) males were observed. In the first and second phase (group A, B) of the experiment, 98.57 % and 95.48 % of adult nematodes were found, respectively. However, only 29,07% of adults were found in the third phase (group C) of experiment, and the proportion of arrested larvae (EL3) was 67.73%. All ponies were treated orally with ivermectin at a dosage of 400 ug /kg. However, adult Oxyuris equi were present in six horses. This is the first European study to demonstrate anthelmintic resistence in Oxyuris equi to macrocyclic lactones.
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Vliv klimatických podmínek na chování koz
MOJŽÍŠKOVÁ, Nikola
The aim was to record the basic categories of behavior of milked goats on an organic farm with regard to the different climatic conditions throughout the year. The herd of approximately 100 goats for milk production was kept throughout the year with unlimited access to pasture freely within the enclosure. Followed the basic categories of behavior: feed intake, exercise, lying and standing. There were five investigations done by interval method (interval of 10 minutes) after 24 hours at different macro climatic conditions (rain, mild winter, frost, heat, optimum temperature). In all investigations were the most represented category relaxing form of lying. The goats rested longest at low temperatures approximately (-12C) for 42% of the day. In contrast the shortest duration of resting during high summer temperatures approximately (32C) was 35% of the day. The length of feed intake was relatively stable with the longest intake in winter by up to 10% to 25% of the day. Climatic conditions affect the regime of the day, especially in determining the time of intake. Goats grazed in summer when high temperatures mostly in the early morning, while the optimal temperatures were grazing evenly distributed throughout the day. Goats are very active, which is due to their lively temperament. Increased unrest in the herd was recorded in relentless rain.
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Comparison of qualitative indicators varieties of hops (Humulus lupulus) from various types of hop fields
KORCOVÁ, Žaneta
The aim of this thesis was to determine content of - a -bitter acids in samples of hop obtained from different types of growing regions. Object of research were cultivars of Saaz late, Sládek and Premiant cultivated in three growing regions (Žatecko, Úštěcko, Tršicko) in year 2015. Nine hop samples from conventional agriculture and one from bio production were examined. For all growing areas, from which hop cones were obtained, was determined altitude, rainfall and average temperatures during vegetation period. Quantity of bitter acids were measured by HPLC. Our calculated correlation coefficients showed that the higher altitude and average temperature the lower content of bitter acids was measured and more precipitation has positive impact on content of bitter acids.
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Výnos a kvalita obilnin v odlišných agroekologických podmínkách
Kotíková, Michaela
The aim of the thesis is to analyze the relationship between yield and factors which affect its formativ. In the first part is first conducted research literature sources and practical case studies about yield and influencing factors. In the second part there is made an analysis of selected sites for selected crops from the perspective of suitability of agro-ecological conditions for selected crops.. The analysis deal with the relationship and dependencies between yield and temperature, yield and rainfall in a given area, for a selected period, within a few decades. Considering the multiple factors involved in influencing the revenue is the theoretical part of the work focused primarily on weather conditions, soil quality, geographical conditions and other factors involved in the yieldmaking process of crops. The practical analysis itself takes into account the effect of precipitation and temperature on the yield of barley in a given period.
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Process Calibrator M143 - Climatic Testing
Dojava, Václav ; Bartoň, Jan (referee) ; Havlíková, Marie (advisor)
Subject of the bachelor thesis are the climatic testing of the M143 calibrator. Theoretical section of the thesis is concerned with the analysis and description of the norms used during climatic tests of electronic devices. Thesis then continues by describing properties and functions of the M143 calibrator and the Caliber programme, which is performing automated measurement during the climatic tests, on the basis of the designed calibration procedure. Practical section of the thesis describes the designed testing points and climatic conditions, which are adjusted during the testing. In this section the testing points are implemented to the Caliber programme. Last section contains the analysis and evaluation of the measured data gained during the climatic testing. From these measured data, we are to determine, whether the M143 calibrator is within the specifications stated by the manufacturer in different climatic conditions.
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