Remediation measures proposal for treatment of runoff in Letovic

Tato diplomová práce se zaměřuje na posouzení a návrh protipovodňového opatření ve smyslu manipulace s objekty a převodem vnitřních vod v daném zájmovém území. Jedná se o úsek v intravilánu města Letovice, přesněji od soutoku Svitavy km 59.608 – 61.520 a Křetínky km 0.000 – 1.752 a náhonu mezi nimi. Na výpočet průběhu hladin je použit program MIKE 11, vyvinutý Dánským hydraulickým institutem, pro výpočet nerovnoměrné proudění.Diploma thesis deals with design of a flood protection a controlling structures with respect to problém of inner waters in the area of interest. The river reaches assessed are located mostly in the urban area of the city Letovice, more precisely from the junction of the Svitava and Křetínka river. The reaches are at kilometer 59,608 – 61,520 of the Svitava and kilometer 0-1,752 of the Křetínka river including the race between them. Program MIKE 11 (developed by Danish hydraulic institut) was used to calculate the water levels as nonuniform flow.

Graphitic Carbon Nitride as a Catalyst Support in Fuel Cells and Electrolyzers

Electrochemical power sources such as polymer electrolyte membrane fuel cells (PEMFCs) require the use of precious metal catalysts, which are deposited as nanoparticles onto supports in order to minimize their mass loading and therefore cost. State-of-the-art/commercial supports are based on forms of carbon black. However, carbon supports present disadvantages including corrosion in the operating fuel cell environment and loss of catalyst activity. Here we review recent work examining the potential of different varieties of graphitic carbon nitride (gCN) as catalyst supports, highlighting their likely benefits, as well as the challenges associated with their implementation. The performance of gCN and hybrid gCN-carbon materials as PEMFC electrodes is discussed, as well as their potential for use in alkaline systems and water electrolyzers. We illustrate the discussion with examples taken from our own recent studies.This project has received funding from the European Union’s Graphene Flagship under Horizon 2020 research and innovation programme grant agreement No. 696656 – GrapheneCore1 and from the EPSRCEP/L017091/1. C.M. acknowledges the award of a Royal Society University Research Fellowship by the UK Royal Society

Evaluation of reproductive performance in selected breeding of sheep

The aim of this thesis was to evaluate the reproductive performance over the period from 2007 to 2010 in selected Suffolk sheep. The evaluation was carried out on the basis of records kept in the selected breeding sheep at Agris Markvarec s r.o. and on own observations. During the reporting period was evaluated 1115 ewes, which were monitored the following parameters such as fertilization, fertility, intensity, rearing of lambs, infertility, ewes lambing, percentage of sheep abortions, stillborn lambs, mortality, percentage of breeding lambs and percentages of sheep by percent occurrence of the cast. There was also observed age structure of the ewes, the dependence of age on fertility of ewes and the effect of father mother on her fertility. In the observed breeding was found the following results, which are presented as an average over the reporting period, so the percentage of fertilization is 91.2%, fertility 145.2% and rearing 81.3%. The percentage of idleness of sheep is 8.8%, which directly affected the percentage of the intensity, which is 118.3% and the lambing percentage, which ranks lower value 81.2%. A relatively high percentage was achieved in postnatal mortality, which is 11.4%. Percentage of sheep abortions in the average is 5.4% and the percentage of stillborn lambs is 4.9%. Breeding lambs 92.3%. The effect of age of ewes on fertility was confirmed by F - test for the significance level of p ? 0,05. Subsequent testing has been demonstrated median significant differences between groups of ewes aged 2 and 3 years and between age groups 3 and 5 years. On the same level of significance was also demonstrated effects of father mother on fertility of mother and on the basis of the results was found that the lowest average fertility rates in the ewes, their father is out of line Yog (110%) and conversely the highest fertility rate (170,8%) is achieved for mothers whose father is out of line Harald. Further testing, which was focused on the effect of age of breeding ewes and breeding year in terms of the father´s line on the mother's fertility wasn´t demonstrated

Price regulation

Bachelor thesis deals with the regulation of prices and its impact on the behavior of economic subjects. Process for calculation of price is shown with two companies - pharmaceutical and water. They define the individual concepts related to state intervention. It is explained by the economic policy of the state, the reason, causes and consequences, it is approached the intervention in the form of regulation and price regulation. Other parts are aimed at finding out the impact of price controls on selected business subjects. These companies have different rules and laws, because they have a different relationship to state regulation. The conclusion summarizes the findings of positive and negative impacts of regulation on business and pricing functionality