Sökning: "Secondary wall"

Visar resultat 1 - 5 av 124 avhandlingar innehållade orden Secondary wall.

1. 1. EU-undervisning : En jämförelse av undervisning om politik på nationell och europeisk nivå

   Författare :Peter Wall; Hans Lödén; Malin Stegmann-McCallion; Lee Miles; Cecilia Arensmeier; Karlstads universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Curriculum studies; EU; Swedish National Politics; Civics; Lower Secondary Education; Subject didactics; Ämnesdidaktik; Statsvetenskap; Political Science;

   Sammanfattning : This study focuses on, and explores the curriculum content and resources used when teaching on the European Union (EU) and EU-questions within civics education at lower secondary level in Sweden. The research findings have been examined from a ‘best practice’ perspective in relation to subject matter which is seen as positive in the context of political participation. LÄS MER

3. 2. Epidemiology of cardiovascular disease in rural Vietnam

   Författare :Hoang Van Minh; Peter Byass; Stig Wall; Nguyen Thi Kim Chuc; Cairns Smith; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cardiovascular disease; epidemiology; risk factors; rural Vietnam; Epidemiology; Epidemiologi;

   Sammanfattning : In the context of transitional Vietnam, although cardiovascular disease (CVD) has been shown to cause a large burden of mortality and morbidity in hospitals, little is known about the magnitude of its burden, risk factor levels and its relationship with socio-demographic status in the overall population. This thesis provides a preliminary insight into population-based knowledge of the CVD epidemiology in rural Vietnam and contributes to the development of methodologies for monitoring it. LÄS MER

4. 3. On Turbulent Wall Jets

   Författare :Hans Abrahamsson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; self-preservation; similarity theory; scaling laws; local flow reversals; high turbulence levels; turbulent kinetic energy budget; two-dimensional; turbulent; hot-wire anemometry; wall jet; three-dimensional; pulsed hot-wire anemometry;

   Sammanfattning : An experimental investigation of the two- and three-dimensional turbulent wall jets has been conducted. The measurements have been performed using different hot-wire techniques in large scale wall jet facilities, and the measurements were focused on the fully-developed region of the flow. LÄS MER

5. 4. Characterization of Gasoline Spray-Wall Interactions

   Författare :Ronny Lindgren; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Phase Doppler Anemometry PDA ; gasoline sprays; wall film; modeling; experiments; Computational Fluid Dynamics CFD ; spray-wall interaction;

   Sammanfattning : Interest in spray-wall interactions has intensified recently because of the development of direct injection spark ignition engines. In this type of engine, impingement of the spray on the piston and cylinder walls leads to increased emissions of hydrocarbons and soot. LÄS MER

7. 5. The cell wall ultrastructure of wood fibres : effects of the chemical pulp fibre line

   Författare :Jesper Fahlén; Ulf W. Gedde; Drek G. Gray; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; atomic force microscopy; cellulose; cell wall; drying; fiber; Kemiteknik; Chemical engineering; Kemiteknik;

   Sammanfattning : Knowledge of the ultrastructural arrangement within wood fibres is important for understanding the mechanical properties of the fibres themselves, as well as for understanding and controlling the ultrastructural changes that occur during pulp processing. The object of this work was to explore the use of atomic force microscopy (AFM) in studies of the cell wall ultrastructure and to see how this structure is affected in the kraft pulp fibre line. LÄS MER