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Utilization of biological and chemical amelioration treatments for restoration of anthropogenic degraded locality near Boleboř village in Ore Mts.
Kouba, Martin ; Podrázský, Vilém (advisor)
This dissertation contains evaluation of the growth dynamics and nutritional status of tree species plantations after application of biological and chemical amelioration treatments, impact of trees on quality of soil and on the accumulation of surface humus. There were evaluated: Norway spruce (Picea abies L.), Blue spruce (Picea pungens Engelm.), Birch (Betula spp.), European larch (Larix decidua Mill.), Gray alder (Alnus incana Moench.), Lodgepole pine (Pinus contorta Dougl.), Eastern White pine (Pinus strobus L.) and Rowan (Sorbus aucuparia L.).
On 4 research plots in Boleboř (Ore Mts.) was measured height, thickness of root collar, breast-height diameter. Were taken samples of soil, weed and assimilation apparatus. There was determined yellowing, browsing, plants mortality and calculated amount of accumulated surface humus.
Application of fertilizer Silvamix Forte on spreading windrows reduced mortality and increased increment for the first 3 years, the effect is evident even after 10 years. It was not confirmed the attractiveness of plants for wildlife after Silvamix Forte application. Silvamix Mg fertilizer application had minimal effect on the growth dynamics and nutrient contents in needles. Positively impacted soil characteristics, increased the value of the cation exchange capacity, decrease in hydrolytic acidity, increase the saturation of sorption bases, decrease of aluminium ions Al3+ and decrease of Fe2O3. On fertilized plots increased content of available nitrogen, phosphorus, calcium and magnesium, increase of the total supply of nitrogen, calcium and magnesium. The rapid increase in the content of Ca and Mg is related to the liming in 2002. Fertilizer application significantly supported the development of ground-weed on plots of Colorado blue spruce mixed with birch, while in pure stands of Colorado blue spruce led to a reduction in aboveground biomass.
For the Colorado blue spruce mixed with birch plot compared with only Colorado blue spruce plot were documented favourable soil properties, increased supply of total nitrogen, phosphorus and potassium. Rowan tree on an intact soil surface exhibits the lowest reaction pH as humus and in the mineral, high hydrolytic acidity, extremely sorption unsaturated soil state, high content of ion Al3+ and low content of available calcium, although was applied liming. Technical and biological reclamation (Boleboř III.) has a long-term positive effect on the average height and breast-height diameter of Colorado blue spruce and white pine. The growth dynamics of European larch and Lodgepole pine were affect only at the beginning. Meliorated stand of Gray Alder has very good growth dynamics, comparable with Larch and Lodgepole pine. The big problem is the game impact, especially in Lodgepole pine, which led to the destruction of all individuals. Colorado Blue spruce in terms of biological reclamation is totally inappropriate. This Spruce has reduced resistance to abiotic factors, which often suffer uprooting and breakage. During the 21 years the Clorado Blue spruce mixed with birch accumulated of 66,09 t.ha-1 humus matter with better properties also in the deeper horizon. Colorado Blue spruce accumulated 54,11 t.ha-1 of humus matter. Rowan tree accumulated on the intact soil largest amount of humus matter (194,98 t.ha-1), however acidifies the deeper horizons. The stand of Norway Spruce occurred during the reporting period a decrease of 47% to 107,03 t.ha-1. The decline may be associated with more open stand and due to air liming.
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Evaluation of ditary habits of nurses of standard wards by NutriDan.
KADLECOVÁ, Lenka
Abstract The bachelor thesis Evaluation of dietary habits of nurses of standard wards by NutriDan program is dividend into theoretical and practical parts. The theoretical part focuses on personality of a nurse, her education and conditions for performance of her work. Eating habits are assessed among nurses at standard wards. Furthermore, it is focused on nutrition which is important not only for nurses but for all of us. There are all the meal components such as sugars, fats and proteins delat with. They are followed by vitamins, minerals and trace elements and of course drinking regime, which is also important. The first aim of this thesis was to investigace how nurses of standard wards eat. The socond objective was to determine whether there is any diference in the diet, hen nurses are at home or while at work. The following hypotheses were stated to meet these aims: H1 Nurses at standard wards eat irregulary at work. H2 More than a half of the nurses of standard wards adhere to heatlthy diet principles in their free time. H3 Nurses know how to eat properly. There was a method of quantitative research ? an anonymus questionnaire used in the research. The questionnaire contained 18 questions, 10 questions were closed, 4 were half-open and the remaining were supplementary. The questinnaire also included two record sheets, where nurses recorded thein 24-hour diet including the liquids they drank. One answer sheet was for the days hen the nurses were at work and the second one when they were off and were at home. It was possible to use 102 questionnaires and records for the research. The records were then evaluated in the NutriDan programe. The research results show that the energy supply of a nurse at work is lower than its expenditure. They also show that Nurses generally know how to eat properly and thein BMI values are mostly balanced. Most nurses know that their diets vary during their free time and hen they are at work but they try to eat regulary and according to the principles of good nutrition at home. Therefore, there are noticeable differences in their diet and results of NutriDan on the diet inegredients show the same except for proteins and fiber. These nutritional components are neglected at home and at work too. They regularly have breakfast and more than a half of them eat regulary. The regulary eat fruits and dairy products. The diet of nurses is less balanced and less nutritious when they are at work. Nurses are eating irregulary and inadequately at work. Meal at working time is mostly represented by dairy products, fruits, vegetables and food rich in cholesterol and lipids. In practice, the results of the research could be provided to nurses at wards, so as they learn about the mistakes they make in their diets, about their eating habits in general so as they could change or modify their diets. The results could also be publishied in professional journals or articles dealing with this problem.
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Study of plasmachemical reduction of corrosive layers on copper
Šimšová, Tereza ; Selucká, Alena (referee) ; Krčma, František (advisor)
The present diploma thesis concerns the research of plasmachemical reduction of copper corrosion layers. The process was based on using low pressure hydrogen RF plasma in which copper samples are treated for several hours. Four series of copper corrosion layers were prepared in four different corrosion atmospheres. The first two were prepared using saturated vapors of HCl and ammonium acetate that affected copper samples for one week. The second two sets were prepared by samples dipping in HNO3 and H2SO4. EDX analysis confirms visual composition of corrosion layers – chlorides, nitrides and sulphate, respectively. The ammonium acetate produced no corrosion layers and thus this set of samples was omitted. The optical emission spectroscopy was used to find out reactions in a hydrogen RF discharge. At the first, a character of plasma without samples was taken by measuring in continuous and pulsed regime. The integral spectrum intensity (300-700 nm) and intensities of hydrogen atomic lines were observed in the dependences on hydrogen flow, power and duty cycle. After that copper samples were treaded under various conditions in continual and pulse regime, typically at pressure of 170 Pa, 200 W power and hydrogen flow rate of 10.2 ml/min. The integral OH radical spectral intensity in the range of 305 – 330 nm was used as a monitor of plasma treatment process. The experimental results showed that intensities of OH radical depended strongly on the corrosion layer kind as well as on the RF discharge mode. Reduction of corrosion layers treated in the pulsed regime was not so satisfactory then in the continuous regime probably due to lower temperature of sample during the treatment. The total supplied energy into the system was also lower in this case. The sample sputtering was observed during the reduction in continuous regime. It means the corrosion was successfully removed but the process was not stopped at that moment, so it is necessary to propose another additional monitoring process besides observing OH radicals. Our experimental results are the first step in the spread research of plasmachemical treatment of copper made archaeological artifacts.
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Optimalization of power supply for LED light sources
Koždoň, Jakub ; Kosina, Petr (referee) ; Boušek, Jaroslav (advisor)
This work focuses on description of function, analysis of degradation process, measuring lifetime and design thermal and electrical driving circuit for LED. Lifetime power LED basically depends on their working temperature. So some methods for measuring and determine LED lifespan and impacts which affects their lifetime are going to be described. Driving circuits are one of keys of element lamps. Their characteristics can affect lifetime of all lamp. So some properties and impacts of circuits for driving LED's and their functions which are necessary need to know in design will be described . I'll also catalogue some circuits which are suitable for that and show particular design power supply for LEDs and it's realization.
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Optimization of supply chain for non-alcoholic beverages
DUBINA, Michal
The main subject of the thesis was the logistics, savings of the expenditure of material, materials handling and stock-keeping in consequence of consumer package.This thesis is solved in theoretical way with many know-how from practise. The product portfolio and production process were described on the base of local examination.
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The use of thermovision technology in output control of power supplies
Rejžek, Jan ; Slaný, Martin (referee) ; Polzer, Aleš (advisor)
The aim of the thesis is to clarify the issue of non-contact surface temperature measurement with a focus on the thermal imaging cameras as a modern representative of pyrometers and thermovision technology used in the output control of power supply. To obtain the corresponding results of temperature control, it is necessary to know the exact values of emissivity of the measured materials. The experimental part of this thesis is focused on detection of emissivity of power supply parts.
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BUT Technology Transfer Center
Matoušková, Inka ; Štikar, Jaroslav (referee) ; Nový, Alois (advisor) ; Donaťáková, Dagmar (advisor)
The theme of the bachelor thesis is the development of pre-designed architectural study to the project documentation including architectural and technical detail. The subject of my bachelor’s thesis, is a lately constructed building of Brno University of Technology Technology Transfer Center in the city of Brno - Kralovo pole, in the street Kolejní within University Campus VUT Pod Palackého vrchem. I tis the study of industrial building and the solutions of the surrounding landscape in terms of supplying and pedestrian access. Technology transfer centre is bi-directional transfer of know-how between scientific research and the commercial sector. It is the mediation of new technologies, knowledge and research results.
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The mechanism of The Influence of Hypoxia on The Fetoplacental Vascular Bed
Jakoubek, Vít ; Hampl, Václav (advisor) ; Zoban, Petr (referee) ; Vízek, Martin (referee) ; Straňák, Zbyněk (referee)
Placental hypoxia is commonly considered to play an important role in the development of several perinatal and neonatal diseases such as intrauterine growth retardation (IUGR) or preeclampsia. In this disertation we therefore tried to (at least partially) solve this problem by answering the question how do acute and chronic hypoxia affect fetoplacentar vasculature. Unlike all vascular beds with the exception of the pulmonary circulation, fetoplacental vessels respond to acute hypoxia with vasoconstriction ( HFPV). This mechanism presumably diverts blood flow from poorly oxygenated areas towards regions with better O2 supply. We already know, that hypoxia inhibits potassium channels and thus causes depolarization in fetoplacental vascular smooth muscle. We propose that this hypoxia-induced depolarization leads to vasoconstriction by activating voltage- dependent calcium (Ca) channels and Ca influx. We performed our first experiment on the preparation of dually perfused cotyledon of the human placenta, which we gained immediately after uncomplicated spontaneus deliveries or elective caesarian sections. The preparation was perfused with Krebs' saline with dextran and meclophenamate and gased with 40% O2, 5% CO2 a 55% N2. We compared HFPV, which was elicited by changing gasing of the perfusate to the...
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Development of tourism destinations based on the supply of sport activities
Voráček, Miroslav ; Petrů, Zdenka (advisor) ; Straková, Ivana (referee)
Sportovní cestovní ruch je v České republice známý již dlouho a aktivně se jej zúčastňuje mnoho lidí, jeho akademický výzkum je však zcela minimální. Zkoumanou destinací cestovního ruchu je mikroregion Ladův kraj s hlavním centrem městem Říčany. Tato oblast nabízí veliký potenciál rozvoje sportovního cestovního ruchu, který však zatím jen velmi málo využit. Jedná se buď o nevyužívání dostupných zdrojů nebo o špatnou alokaci prostředků do jejich využívání.
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