|
The Analysis and Evaluation of The Damages Caused by Wild Boar in The Region of Milevsko
KOTALÍK, Tomáš
The diploma thesis is focused on the analysis of the damages which were caused by wild boar on farming plants in the region of Milevsko. Three areas of interest were chosen for the observation (the area around Sepekov, Přeštenice and Opařany). Each of the areas of interest observed was chosen because of its conditions suitable for the occurrence of wild boar during whole year. Each area had also ideal conditions for evaluating of the damages caused by this species on farming plants. The main aim of this diploma thesis was appraisal of the damages caused by wild boar according to the most suitable Czech and foreign methodologies. The observation was realized in the period from the beginning of February 2011 to the end of October 2011. The size of the damages on particular farming lands was measured according to three Czech methodologies (according to Dvořák et al., 2006). Total evaluation of the damages caused by wild boar on farming plants was realized according to Czech methodology by Kamler and two foreign methodologies (by Jonathan Yoder and Ray T. Sterner). The biggest damages caused by wild boar were found out in the area around Sepekov. The most attractive and also the most damaged farming plant was maize in the region of Milevsko. The damages of permanent grass cover caused by rooting of wild boar were found out only in spring term. Winter grains were mostly damaged by wild boar in the period of milky ripeness. In case of the usage of the methodologies for finding out the amount of damaged area it was necessary to choose the methodology according to the kind of a farming plant, the height of a plant and the kind of the damage. All three types of the methodologies used for finding out the total amount of damages caused by wild boar on farming plants were very exact and applicable to the chosen region.
|
|
Význam technických norem pro senzorické hodnocení
Hradílková, Blanka
This bachelor thesis with the topic "The Importance of Technical Standards for Sensory Analysis" has been written in the years of 2013/2014 at the Department of Post-Harvest Technology of Horticultural Products at the Faculty of Horticulture at the Mendel University in Brno. The main purpose of this thesis is to establish a list of technical standards important for sensory analysis, divide them based on their main focus and describe their goals. Moreover, it is the aim of this thesis to also compare and characterize the chosen standardized methods of sensory analysis. The following pages include information about how sensory analysis can be used to evaluate the results of both national and international competitions in several food commodities such as vine, beer, meat, bread and jam. These competitions support the development of high quality food companies as well as their products and enable them to reach higher competitiveness in their markets.
|
|
Use of statistical methods in rating applicants for vacancies
Rabochová, Lucie ; Vrabec, Michal (advisor) ; Svoboda, Libor (referee)
Diplomovou práci věnuji problematice statistických metod a jejich využití při hodnocení uchazečů o zaměstnání. Konkrétně se bude jednat o aplikaci faktorové analýzy a jednofaktorové analýzy rozptylu. Diplomovou práci rozdělím na 4 části. První tři části zasvětím pouze faktorové analýze, poslední část se bude týkat výhradně analýzy rozptylu. V první části se zaměřím na průzkumovou analýzu dat, s cílem ověřit předpoklady faktorové analýzy. Nejdříve vyhledám vybočující a extrémní hodnoty jednotlivých proměnných. Následovat bude výpočet základních charakteristik proměnných, testování heteroskedasticity a vysvětlení smyslu každé z proměnných. Hlavní důraz bude kladen na testování normality jednotlivých proměnných, a to jak pomocí statistických testů, tak s využitím grafických nástrojů. Druhá část bude věnována matematickému modelu faktorové analýzy. Ve třetí části se zaměřím na samotné provedení faktorové analýzy. Jako první budu testovat předpoklady vztahující se na korelační matici. Následovat bude kompletní provedení faktorové analýzy v SPSS popř. NCSS. Nejdříve použiji metodu faktorové rotace Varimax. Pro odhady parametrů faktorového modelu použiji metodu hlavních komponent (pro výchozí řešení) a metodu hlavních os. Pro srovnání faktorové rotace Varimax provedu rovněž ortogonální faktorovou rotaci Quartimax při metodě hlavních os. Ve čtvrté části se zaměřím na jednofaktorovou analýzu rozptylu, vzhledem k tomu, že mám k dispozici proměnné věk a národnost, které jsem nevyužila ve faktorové analýze. Nejdříve opět provedu průzkumovou analýzu dat, popíšu jednofaktorový model analýzy rozptylu a posléze analýzu provedu v SPSS popř. NCSS. Pokud prokážu vliv alespoň jednoho z faktorů, budu pokračovat v hlubší analýze mnohonásobného porovnávání.
|
|
The application of AFLP fingerprinting in breeding of Brassica napus
CUŘÍNOVÁ, Petra
AFLP markers are widely used in breeding in some other crops, but their utilization in breeding of Brassica crops is not so frequent. AFLP markers are used for molecular characterization of particular varieties or genotypes and for evaluation of genetic diversity. The aim of this thesis was the application of this method in breeding of rapeseed and in comparative study of genetic variability of different oil seed rape cultivars of Czech, Czechoslovak and German origin. AFLP is based on selective amplification of genomic DNA. Technique consists of three basic steps: 1. restriction of genomic DNA on smaller fragments and ligation of adaptors; 2. selective amplification of fragments with specific primers and 3. electrophoresis of products and computer analysis (Vos et al., 1995). In this thesis 16 Czech (CZ) and Czechoslovak (CZS) and 16 German (G) cultivars of oilseed rape were compared. Two specific primers, EcoRI AGC and fluorescence labeled primer MseI ACC, were chosen for AFLP method. It was possible to distinguish group of CZ/CZS and G cultivars, which have origin in gene resources from Czech Republic and Germany. AFLP technique allows detection of very small differences in Brassica genome. The differences between studied cultivars exist, but they are not very distinct. They show on certain relationship and reduction of genetic basis of genetic resources, which are used in Central Europe.
|
|
Diagnostics of pedagogical practise by the pedagogical faculty student´s
MALCOVÁ, Petra
In theoretical part, this thesis is occupied with indiviual components related with pedagogical practice at universities. This theoretical part acquaint the reader with practice, with an impact on a student, with the source of professionalization in the historical developement and with the foreign models of professionalization. In this section, it also acquaints the readers with the fine line of practice with teaching methodology. It illuminates issues in particular faculties. It also pushed ahead educators of teachers, ahead motivation in practice, organization of teaching practice and its evaluation. This part is added on several proposals of dealing the issues. The second part is practical and explorational. This part finds out satisfaction of students with teaching practice at The Faculty of pedagogy in České Budějovice using questionnaires and processes their proposals to improve. The results were graphically processed and accompanied by commentary. The thesis is accompanied by interesting annexes applied on pedagogical practice.
|
|
Lomová houževnatost a mechanismy porušování intermetalika na bázi TiAl
Dlouhý, Ivo ; Chlup, Zdeněk ; Hadraba, Hynek ; Kozák, Vladislav
The paper is focused on the analysis of the role of microstructure in fracture performance of TiAl intermetalics at room and elevated temperatures. Tensile properties, flexural strength and fracture toughness have been evaluated for Ti-40Al-2Cr-2Nb-1B and Ti-46Al-0,7Cr-0,1Si-7Nb-0,2Ni alloys. Positive Nb effect on fracture resistance was found; fracture toughness of the high Nb alloy was increased at contemporary increase of tensile and flexural strength. Fracture surfaces were evaluated using scanning electron microscopy showing the key role of mechanical twinning in deformation of both alloys. As a governing mechanism of the crack initiation a microcrack nucleation at boundaries between -TiAl grains was confirmed. Based on findings obtained key aspects of the effect of separate microstructural components have been discussed. Summary of toughening effects acting in this group of intermetalics has been provided.
|
|
Use of the extrusion process to produce biogas from wheat straw
VERNER, Dušan
Many agricultural biogas stations process predominantly phytomass specifically grown for power engineering purposes as a primary raw material. This results in gradual increase of maize proportion in sowing sequences at the exclusion of traditional area-specific crops, which presents various potential negative effects. The aim of study is to evaluate the substitution of maize with wheat straw in the anaerobic fermentation process from the biotechnological and economic viewpoint. For this purpose, wheat straw pellets were pretreated using the high-pressure extruder in compliance with UV CZ 21314 at different runtime parameters. Cumulative methane (CH4) production in quarter-mode operation simulation, based on the extrusion pressure, cycle duration and fermentation temperature, was the main evaluation criteria. Optimal run time parameters were derived from the approximation ? extrusion pressure 1,35 MPa, reaction time 210 s, in order to achieve maximal CH4 production at mesophilic fermentation temperature (38 °C). For fermentation temperature 48 °C, optimal pressure 1,25 MPa and cycle duration 180 s were approximated. The discount rate of Net Present Value (NPV) was established as a main comparative criterion considering overall executive, legislative and technological aspects of analyzed biological effects. Based on these findings suggest, wheat straw extrusion is interesting, unconventional and profitable technology in the field of biogas production.
|
|
Využití dálkového průzkumu Země k monitoringu a hodnocení zemědělského sucha
Otrusina, Adam
The aim of this study was to examine the possibilities of remote sensing for monitoring and evaluation of agricultural drought, with a particular focus on Normalized Difference Vegetation Index (NDVI). Reference areas were selected for the research, which were the South Moravian Region and the Olomouc Region, more specifically the districts Blansko, Brno-country, Břeclav, Hodonín, Vyškov and Znojmo in the South Moravian Region and the districts Olomouc, Prostějov and Přerov in the Olomouc Region. The monitored agricultural crops were spring barley and winter wheat. For these areas NDVI for the years 2000 - 2012 was prepared and analyzed. The usability of NDVI was evaluated to monitor drought in the conditions of the Czech Republic using z-index. Strong links have been established between NDVI and yield of spring barley and winter wheat. To quantify these relationships Pearson's correlation coefficient r was used, which reached the highest values of r = 0.94, and the coefficient of determination R2, highest value of which was R2 = 0.89. It has been proved, that the use of NDVI is a suitable tool for the prediction of crop yields. A weaker relationship was found between NDVI and z-index, where the highest value calculated by Pearson's correlation coefficient reached r = 0.70 and by coefficient of determination R2 = 0.49. To achieve stronger relationship the possibility was proposed to use z-index in more detailed spatial and temporal resolution, or any other tool for the evaluation of drought.
|
| |
| |
guest ::
