National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Rozvoj alternativních pohonů a paliv osobních automobilů ve světě a ČR
Pukl, Zdeněk
The bachelor thesis is focused on alternative drives and fuels in automobiles. The first part of the thesis contains theoretical distribution of alternative fuels and drives focusing on fuels made from biomass. Further the work is focused on construction of modifed vehicles with combustion engines, construction of hybrid cars and electric vehicles. The last part of the thesis is a technical, economical and legislative comparison.
Degradace motocyklového oleje v průběhu provozu
Pukl, Zdeněk
The thesis is focused on the operational degradation of engine oil in four-stroke motorcycles and is dividend into two parts. The first part of the thesis is focused on the theoretical part, where tribology, lubricants and lubrication system is described. The experimental part of the work is focused on examineting engine oil degradation due to mileage. First, the monitored motorcycles and used oils are described. The results of measured density, viscosity and content of individual substances occurring in oils are described. Finally, a discussion and comparison of resulted trends with other experiments is performed.

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