Search for dissertations about: "Abrasion"

Showing result 21 - 25 of 54 swedish dissertations containing the word Abrasion.

2. 21. Evolution of coke properties while descending through a blast furnace

   Author : Tobias Hilding; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Process Metallurgy; Processmetallurgi;

   Abstract : Due to increasing price and economic pressures, there is a need to minimise coke consumption. The lesser amount of coke used has indirectly set higher standards for coke quality and led to a wish for even more knowledge about its function in the blast furnace. READ MORE

4. 22. Microstructure and wear mechanisms of textured CVD alumina and titanium carbonitride coatings

   Author : Siamak Shoja; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Plastic deformation; Texture; TKD; Electron microscopy; Coatings; CVD; TiCN; α-alumina; Wear mechanisms;

   Abstract : The aim of this thesis is to find the reasons behind how the wear performance of hard coatings produced by chemical vapor deposition (CVD) is influenced by their texture, as this is today not fully known. Therefore, differently textured coatings were synthesized, and subsequently analyzed both before and after specially designed machining tests. READ MORE

5. 23. Traffic Emissions of Aerosols

   Author : Matthias Vogt; Douglas Nilsson; Eiko Nemitz; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Primary Aerosol Emissions; Carbon Dioxide Emissions; Traffic Aerosol; Urban Aerosol; Traffic Activity; Emission Factors; Eddy Covariance; Aerosol Flux; Atmosphere and hydrosphere sciences; Atmosfärs- och hydrosfärsvetenskap; Applied Environmental Science; tillämpad miljövetenskap;

   Abstract : Non-exhaust traffic emissions are unregulated, yet the mass emission of non-exhaust particles may be larger than exhaust emissions. In addition, their emission factors (EF) are more uncertain than exhaust emissions. This thesis presents aerosol flux measurements in Stockholm using the eddy covariance method. READ MORE

6. 24. TRIBOCHEMICAL INTERACTIONS OF A PTFE/ALPHA ALUMINA COMPOSITE AT THE SLIDING INTERFACE: A MECHANISM FOR ULTRA LOW WEAR

   Author : Kathryn L Harris; USA University of Florida; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : The wear and friction behavior of ultralow wear polytetrafluoroethylene (PTFE)/αalumina composites first described by Burris and Sawyer in 2006 has been studied intensively in the years hence. The mechanisms responsible for the remarkable improvement in wear over unfilled PTFE are not yet fully understood. READ MORE

7. 25. Skrubbsår : Berättelser om ur hiv föreställs och erfars i samtida Sverige

   Author : Desireé Ljungcrantz; Nina Lykke; Anna Lundberg; Lena Martinsson; Linköpings universitet; []
   Keywords : HUMANIORA; HUMANITIES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HlV; experiences; interviews; popular culture; cultural studies gender; health; intersectionality; vulnerability; queer; phenomenology; liveability; creative writing; auto-fiction; hiv; erfarenheter; intervjuer; populärkultur; kulturstudie; genus; hälsa; normer; intersektionalitet; sårbarhet; queer; fenomenologi; levbarhet; kreativt skrivande; autofiktion;

   Abstract : Avhandlingen är en tvärvetenskaplig kulturstudie som utforskar föreställningar om och erfarenheter av hiv som kronisk sjukdom i Sverige under 2005–2014. Analysen av ett antal hiv-berättelser sker tillsammans med en teoretisk sammanflätning i form av den queera sårbarhetens och sjukdomens fenomenologi, samt genom de feministiska figurationerna hiv-tröskeln, skrubbsår, plåster och gruskorn. READ MORE