Search for dissertations about: "ski"

Showing result 1 - 5 of 32 swedish dissertations containing the word ski.

  1. 1. Interfacial kinetic ski friction

    University dissertation from Östersund : Mittuniversitetet

    Author : Leonid Kuzmin; Mats Tinnsten; Jonas Danvid; Mikael Jonsson; Roland Larsson; [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; Jonathan W. Martin; [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; Urs Berger; Michael McLachlan; Crispin Halsall; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Semifluorinated n-alkanes; Perfluorinated alkyl acids; ski waxes; snow; soil; fate; NATURAL SCIENCES; NATURVETENSKAP; Applied Environmental Science; tillämpad miljövetenskap;

    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; Lars-Gunnar Elmqvist; Herbert Sandström; Robert J Johnson; [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. Investigation of the most essential factors influencing ski glide

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Leonid Kuzmin; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Computer Aided Design; Datorstödd maskinkonstruktion;

    Abstract : There are many different parameters of a ski running surface (material, roughness, hydrophobicity, etc.). All the parameters have an influence on ski glide, some more and some less. Furthermore, some parameters with only minor relevance are commonly declared as critical, while truly critical parameters, as far as we know, never been investigated. READ MORE