This diploma thesis deals with level of degradation of coating layers of car body by contact with chemicals in agreed time periods. First part is focused on surface pre-treatment and coating process in automotive industry. Description of coating materials is following. The last point of first part is focused on alternative coating technology – powder coating what is raising in customers´ focuses because of higher repeatability of powder cloud. The experiment is focused on coating degradation influenced by seven types of chemicals (petrol, diesel, AdBlue, washer fluid, salt liquid, Coca-Cola, alcoholic liquid) what car users meet every day. Testing samples were two bonnets. One was localized inner and another outside. Degradation of coating layer thickness was a long-time term and we measured connection between time of contact and used chemical. Based on such results we were able to determinate level of damage.

Made available in DSpace on 2016-06-02T19:00:30Z (GMT). No. of bitstreams: 1 5805.pdf: 6556317 bytes, checksum: f12b1dace4d7ccbd4511d2a57dc62995 (MD5) Previous issue date: 2013-07-04 / Universidade Federal de Minas Gerais / This research aims to explore the anthropological debate on sportive practices through the description and analysis of dispute modes in different contexts. In the literature of sportive practices anthropology, football has frequently been used as a framework for research into indigenous societies; expanding on these theoretical models developed for football allows for greater understanding into the rituals within the society to which they belong, and to highlight the relationship between football and other practices. The ethnographic study proposes the Upper Xingu from researches conducted with the Kalapalo peoples of Tanguro village, hence the emphasis on wrestling in Alto Xingu (kal. ikindene). Anthropological themes highlighted on the peoples of the region, such as the construction of the body, chieftaincy, complex inter-ethnic rituals and mythology are directly linked to the wrestling. The objectives also include a more positive assessment for what was termed as "sportive practices" within indigenous societies, ethnographically in the Upper Xingu. This is not only to realize the "sportive" nature of these activities, but above all to understand the symbolic space for each mode, whether in the village, or in rituals disputes that renegotiate the dynamics of alliances and rivalries in this regional complex. / Essa pesquisa pretende ampliar o debate antropológico sobre práticas esportivas através da descrição e análise de modalidades disputadas em diferentes contextos. Na literatura de antropologia das práticas esportivas o que se tem de mais consolidado são trabalhos que tomam o futebol como referência, mesmo quando de pesquisas em sociedades indígenas. Nesse caminho, a expansão dos modelos teóricos elaborados para o futebol possibilita entender seus significados no interior da sociedade em que está inserido, além de trazer à tona relações entre o futebol e outras práticas. O recorte etnográfico proposto é o Alto Xingu, em pesquisas realizadas entre os Kalapalo da aldeia Tanguro, donde o destaque para a luta alto-xinguana (kal. ikindene). Temas antropológicos destacados sobre os povos da região, como a fabricação do corpo, chefia, complexo ritual interétnico e mitologia, estão diretamente atrelados à luta. Os objetivos compreendem ainda uma visão mais positiva para aquilo que foi denominado como "esportividade ameríndia", etnograficamente no Alto Xingu. Não se trata apenas de perceber o caráter "esportificado" de algumas atividades, mas acima de tudo compreender o espaço simbólico destinado a cada modalidade, seja no plano da aldeia, seja nas disputas rituais que atualizam a dinâmica de alianças e rivalidades nesse complexo regional.

Though succession is a widely studied process, there are only a few reports dealing with changes in plant functional types in the course of succession. Even fewer studies are dealing with agricultural, wet meadows, which are under continuous impact of mowing. The aim of this work is to fill this gap. The studied area is situated in south part of CHKO Slavkovský Les (region of Karlovy Vary, West Bohemia). In previous works grasslands on arable field after 15, 35 and 55 years after abandoned and continual grasslands in last 100 years were detected from historical agriculture maps. The releves on all types of grassland were made and the species pool was investigated. I this work I investigate the functional types and live-history traits of these species and I also look for Ellenberger values and changes of abiotic environment. The result suggests that the late - successional species are long-lived and have slower live cycle (they mature later). Their seeds are less persistent and have worse dispersal ability. Their seedlings are more viable and the species invest more to aboveground biomass than to underground. Late-successional species also flower earlier and shorter time, what seems to be an adaptation to mowing. I found no relationship between successional age in which the species occur and seed mass,...