Aim of this report is the investigation of suitable operational conditions for the drif{}t chambers MDC III installed in the HADES setup. The simulations performed showed that operating the drif{}t chambers in a mode with nearly constant electron drif{}t velocity in a predominant part of the cell allows a more precise and fast tracking. This is particularly important for electrons and positrons; here the invariant dilepton mass must be reconstructed with high precision to get a resolution of $\Delta M/M\approx 1\%$ for the $\omega$ and $\phi$ mass peaks and thus a chance to verify also small in-medium mass shif{}ts. This helps to realize the physics program at HADES which focuses on the search for such mass shif{}ts to get insight into the in-medium behaviour of hadrons in dense strongly interacting matter.

Aim of this report is the investigation of suitable operational conditions for the drif{}t chambers MDC III installed in the HADES setup. The simulations performed showed that operating the drif{}t chambers in a mode with nearly constant electron drif{}t velocity in a predominant part of the cell allows a more precise and fast tracking. This is particularly important for electrons and positrons; here the invariant dilepton mass must be reconstructed with high precision to get a resolution of $\Delta M/M\approx 1\%$ for the $\omega$ and $\phi$ mass peaks and thus a chance to verify also small in-medium mass shif{}ts. This helps to realize the physics program at HADES which focuses on the search for such mass shif{}ts to get insight into the in-medium behaviour of hadrons in dense strongly interacting matter.

Made available in DSpace on 2016-04-28T14:16:15Z (GMT). No. of bitstreams: 1 Rodrigo Pietro Leite.pdf: 1186209 bytes, checksum: 42013de03e2921b14242622ec2ea0fbe (MD5) Previous issue date: 2012-08-24 / This research deals with experimental practices developed by Michael Faraday, held from 1836 until early 1838, focusing mainly on the experiment, which would later be known as the "Faraday cage". We analyzed the Experimental Researches in Electricity (ERE), in which are recorded reflections and experiments that were subsequently presented to the Royal Society. We also analyzed part of his correspondence and his diary, and other works. This analysis confirmed that the pillars of thought Faraday were the idea of unity of natural forces and the proposed improvement of the mind. Michael Faraday conducted several experimental tests, which helped formulate concepts fundamental to the understanding of matter. In this study focused in particular experiments relating to the load charge distribution / Esta pesquisa aborda práticas experimentais desenvolvidas por Michael Faraday, realizadas de 1836 até início de 1838, tendo como foco principal o experimento, que mais tarde seria conhecido como a Gaiola de Faraday . Analisamos o Experimental Researches in Electricity (ERE), no qual estão registrados experimentos e reflexões que posteriormente foram apresentados à Royal Society. Também analisamos parte de sua correspondência e de seu diário, além de outras obras. Tal análise reafirmou que os pilares de sustentação do pensamento de Faraday eram a ideia de unidade das forças da natureza e a proposta de aperfeiçoamento da mente. Michael Faraday realizou vários testes experimentais, que o ajudaram a formular conceitos fundamentais para o entendimento da matéria. Neste estudo focalizamos, especialmente, os experimentos relativos à distribuição de carga

The master thesis deals with the currently used types of water turbines and next part of the thesis deals with the theory of Tesla turbine. The theoretical part discusses water wheels, water turbines with their types and models which are described in the work. The thesis also discusses the construction of the Tesla turbine, its possibilities of using, inside principles and information about Tesla´s patent. The practical part contains the design of the Tesla turbine with modifications for increasing efficiency. The thesis describes production and assembly of turbine and the technology used for production of the turbine. There is also described how the turbine was measured and there are results of measurements of the turbine.