Search for dissertations about: "ski"

Showing result 1 - 5 of 35 swedish dissertations containing the word ski.

  1. 1. Interfacial kinetic ski friction

    University dissertation from Östersund : Mittuniversitetet

    Author : Leonid Kuzmin; Mittuniversitetet.; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ski glide; ski base; ski wax; hydrophobicity; UHMWPE; PTFE; topography; TECHNOLOGY Engineering mechanics; TEKNIKVETENSKAP Teknisk mekanik;

    Abstract : It is no doubt, that the ski glide over the snow is a very complicated object ofresearch. However, ski glide is just a one area of many other areas of humanknowledge. As a rule, the scientists and practitioners, who work in these areas,operate with some publicly expressed more or less solid hypotheses. READ MORE

  2. 2. Occupational exposure to fluorinated ski wax

    University dissertation from Örebro : Örebro universitet

    Author : Helena Nilsson; Örebro universitet.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Perfluorinated; polyfluorinated; FIS; occupational exposure; ski wax; biotransformation; metabolism; fluorotelomer alcohol; fluorotelomer acid; aerosol; dust; UPLC MS-MS; GC MS-MS; Kemi; Chemistry;

    Abstract : Per- and polyfluorinated substances (PFAS) are used in the production of ski wax to reduce the friction between the snow and the ski. In this occupational study of ski wax technicians’ exposure to PFAS and particulate aerosol we have collected whole blood (wb) (n =94), air (n =84) and aerosol (n =159) samples at World Cup events from 2007-2011. READ MORE

  3. 3. Environmental occurrence and fate of semifluorinated n-alkanes and perfluorinated alkyl acids present in ski waxes

    University dissertation from Stockholm : Department of Applied Environmental Science (ITM), Stockholm University

    Author : Merle M. Plassmann; Stockholms universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Semifluorinated n-alkanes; Perfluorinated alkyl acids; ski waxes; snow; soil; fate; NATURAL SCIENCES; NATURVETENSKAP; tillämpad miljövetenskap; Applied Environmental Science;

    Abstract : Highly fluorinated organic compounds are emerging environmental contaminants of concern, due to their persistence, ubiquitous distribution, bioaccumulation potential and toxicity. Ski waxes are sources of highly fluorinated chemicals to the environment that have not been investigated so far. READ MORE

  4. 4. Alpine ski sport injuries in Swedish Lapland

    University dissertation from Umeå : Umeå university

    Author : Curt Made; Umeå universitet.; [2009]
    Keywords : skiing; wounds and injuries; Orthopaedics; ortopedi;

    Abstract : Downhill skiing is associated with recreation, youth, speed, aerials and crowded courses which carry increased risk of injuries. The aim of this study was to evaluate downhill sport injuries in a Swedish ski resort.Material and methodsIn a case-control study ongoing 1989/90–2006/07, 3,696 injured skiers were registered. READ MORE

  5. 5. Parental involvement in school : What promotes and what hinders parental involvement in an urban school

    University dissertation from Lärarutbildningen, Malmö högskola

    Author : Laid Bouakaz; Malmö University.; Malmö University.; [2007]
    Keywords : INTERDISCIPLINARY RESEARCH AREAS Children; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN Barn; INTERDISCIPLINARY RESEARCH AREAS Ethnicity; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN Etnicitet; Humanities Social Sciences; minority parents; multi-ethnic school; multicultural; parental involvement; urban school;

    Abstract : This thesis focuses on parental involvement in an urban school. The overall aim of the study is to obtain more adequate knowledge of what promotes and what hinders parental involvement in an urban secondary school for students between the age of about 12 and 16, and to achieve a better understanding of how parents of Arabic background and teachers view parental involvement in the work of the school. READ MORE