This submitted dissertation work deals with fuel consumption measurements at buses. It describes variety of driving cycles, basic calculative corrections, setting-up driving tolerances and application range. Special focus is paid to agreement of UITP-SORT procedures. The experimental part of dissertation work explains credibility of measurements, especially concerns traffic delay at measurement and describes additional corrections under different weather conditions. We compared results from fuel measurement device with readings from CAN messages, provided by engine control unit. Specific part is devoted to measuring influence of different auxiliary devices, like air compressor, servo steering, air condition, ventilation or cooling fan and influence of electrical load at vehicle systems. There is also is discussed an influence of driving style of specific drivers and autopilot.

This dissertation refers in its preface to heterogeneity of expenses and consuption of the households in various periods of time. It applies to expenses and consuption of the households in the present, too. It mainly refers to information of the Czech statistical office and also to author's own research. The dissertation concentrates on the general assessment of the expenses and consuption of the households and it monitors the important increases and decreases of the expenses and consuption of the czech households according by various statistical methods. This dissertation compares the expenses and consuption of the households in the country with the expenses and consuption of the households in the cities and it delimits its mainly differences. A comparison with other states of the EU in expenses and consuption of the households is introduced as a matter of interest. All important findings are shown in the end of this dissertation and the presumptive development in the near future is sketched.

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This diploma thesis deals with the economy of the tractor sets of the tractor CASE IH Magnum 280 and the tractor CASE IHPuma 230 CVX EP. The economy is considered with the selected agricultural machines operating by the processes of ploughing and stubble- tillage. The ploughing was done with with the six-and seven- blade plough Kverneland PG 100. The stubble-tillage was done with the disc stubble- plough Diskomat 6. The technical parametres of the tractor engines were taken from DLG- Top Agrar Test Heft Nr. 11/2003 and from CNH CASE PUMA 230 CVX/ DLG 2010-268. The diploma thesis contains energy and efficiency parametres of the tractor sets. The results are based on the one-year observations. The obtained parametres are elaborated in the forms of tables and graphs. The measured figures were used to present the technical - economic analysis.

This thesis called "Influence of an operation mode of a tractor on function of selective catalytic reduction system" describes various operation modes of the tractor, when aqueous solution of urea (AdBlue) was injected into selective catalytic reduction system. The first part jkdeals with particular pollutants in exhaust fumes. Formation of pollutants and their impact on humans and environment is described in this chapter. The second part describes individual technical systems used to lower harmful components, especially selective catalytic reduction system. The last part concentrates on practical measuring of operating parameters of the tractor, particularly consumption of aqueous solution of urea conducted in different modes of a motor. Part of the experimental measuring is graphic and verbal evaluation.

This thesis is focused on identifying major determinants which affect household expenditures in chosen households groups in the Czech Republic between 1993 and 2014. Consumption is analysed on the basis of classification of individual consumption by purpose according to the Czech Statistical Office. The economic entities, households, consumption, classification CZ_COICOP, Household Budget Survey and macroeconomic indicators are defined in the theoretical part of the thesis. Methodology focuses on defining time series, index analysis and econometric model. The practical part is divided into three individual chapters. The first chapter is focused on the analysis of the individual variables for the Czech households which are included in this thesis. The second chapter is focused on the construction of two single-equation econometric models. The first is the model of consumption expenditures of households of employees and the second is the model of consumption expenditures of households of self-employed. The third chapter is focused on the analysis of the same variables as in the first part but for the households of EU15 this time. Finally, the analysis results of EU15 are compared with analysis results of the Czech Republic.