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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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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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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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Toxicological Aspects of Chemical Accidents
Roman, Michal ; Vičar,, Dušan (referee) ; Mika, Otakar Jiří (advisor)
The master's thesis focuses on the toxicological aspects of chemical accidents. The aim is to determine the main acute risk of dangerous toxic chemical substances that can be escape in chemical accidents and determine their impact on life and damage to the health of the population and characterize the factors affecting the spread of these dangerous chemicals. The practical part focuses on the toxicological aspects of selected industrial pollutants.
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Autonomous outdoor system for growing plants
Schmidt, Dominik ; Lukeš, Zbyněk (referee) ; Petržela, Jiří (advisor)
This diploma thesis deals with maintaining possibilities for appropriate climatic conditions in outdoor greenhouse. The importance for growing plants is an appropriate temperature, humidity and adequate supply of water. The aim of the study is to suggest an apparatus sustaining beforehand defined conditions in the greenhouse with minimal requirements for maintenance. Apparatus uses analogue control by applying photosezistor and thermistor. For power supply are DC-DC converters used.
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Autonomous outdoor system for growing plants
Schmidt, Dominik ; Lukeš, Zbyněk (referee) ; Petržela, Jiří (advisor)
This diploma thesis deals with maintaining possibilities for appropriate climatic conditions in outdoor greenhouse. The importance for growing plants is an appropriate temperature, humidity and adequate supply of water. The aim of the study is to suggest an apparatus sustaining beforehand defined conditions in the greenhouse with minimal requirements for maintenance. Apparatus uses analogue control by applying photosezistor and thermistor. For power supply are DC-DC converters used.
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Long term investigation of resveratrol content in moravian red wines in relation to climate conditions
Vrchotová, Naděžda ; Tříska, Jan ; Totušek, J. ; Balík, J.
The considerable commercial importance of wine together with the necessary quality control and investigation of the biological quality of constituent compounds leads to the development of adequate and reliable methods for the determination of macro- and micro-components in wine. Although wine contains a large amount of known compounds e.g. volatile (fl avour compounds), semi-volatile (phenolic) and non-volatile components (pigments), new compounds from all the above mentioned classes are still found in wine and are under heavy investigation, especially regarding their biological activity and their relation to the vinifi cation processes. Th e most signifi cant and famous due to the so-called French paradox is resveratrol-3,4´,5-trihydroxystilbene. Resveratrol is a stress metabolite formed in the grapevine in response to abiotic (UV irradiation) and biotic stresses (Botrytis cinerea). UV irradiation transforms trans isomer to cis form. But according the recent literature cis resveratrol could be also a result of organic farming – natural means of defence in organic viticulture against fungal infections. In our study we have investigated resveratrol content in diff erent vineyards in relation to annual mean temperature, precipitation and sun irradiation.
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Sorghum (Sorghum bicolor (L.) MOENCH) and its utilization possibilities in the condition of the Czech Republic
Hermuth, Jiří ; Janovská, Dagmar ; Strašil, Zdeněk ; Usťak, Sergej ; Hýsek, Josef
Sorghum is one of the oldest used crops. Presently, it is one of the five most cultivated cereals in the world for human nutrition. This methodology includes a comprehensive view of sorghum cultivation and presents the newest knowledge in range from botanical taxonomy to the possibilities of utilization. In this publication, there are included not only our own results but there are also results from the world scientific publications. There are characterized selected species of sorghum suitable for different climatic conditions of the Czech Republic. There are described all aspects and procedures, which can influence the final production of selected sorghum varieties including their quality from the point of view of biogas production.
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