Search for dissertations about: "Magnus Sjöberg"

Found 5 swedish dissertations containing the words Magnus Sjöberg.

2. 1. The rotating injector as a tool for exploring DI diesel combustion and emissions formation processes

   Author : Magnus Sjöberg; KTH; []
   Keywords : diesel spray combusion; rotating injector. Air swirl; air fuel-mixing. Soot. NO. CO; flame visualization. Chemking modeling. Soot deposition;

   Abstract : A diesel fuel injector has been modified to allow rotationaround its axis, driven by an electric motor. Injections at upto 6000 rpm from the rotating injector have been investigatedunder the influence of air swirl on one optical research engineand one optically accessible heavy-duty diesel engine. READ MORE

4. 2. Nature's Canon : The Formation and Change of the Science Curriculum in Swedish Compulsory School 1842–2007

   Author : Magnus Hultén; Ingrid Carlgren; Svein Sjøberg; Stockholms universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Compulsory school; Science education; Curriculum history; Textbook; Primary; Secondary; Ideology; naturkunskap; naturkunnighet; naturorientering; naturvetenskap; folkskola; grundskola; lärmedel; läroböcker; lärobok; läroplansteori; läroplanshistoria; innehåll; ideologi; utbildning; fysik; kemi; biologi; Education; Pedagogik; pedagogik; Education;

   Abstract : This dissertation analyses the science curriculum in Swedish compulsory school 1842–2007. National curricula, textbooks, textbook adverts, and handbooks are analysed. These all have a strong position in defining the school curricula and their contents, methods and aims, and can therefore be called canonic texts. READ MORE

5. 3. Utilizing research in the practice of personnel selection : General mental ability, personality, and job performance

   Author : Sofia Sjöberg; Magnus Sverke; Katharina Näswall; Marise Born; Stockholms universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Personnel selection; job performance; correction for range restriction; general mental ability; personality; clinical and mechanical data collection; clinical and mechanical data combination; utility; preference for hiring approach; Psychology; psykologi;

   Abstract : Identifying and hiring the highest performers is essential for organizations to remain competitive. Research has provided effective guidelines for this but important aspects of these evidence-based processes have yet to gain acceptance among practitioners. READ MORE

6. 4. On Alternative Fuels for Internal Combustion Engines : A study of biodiesel, gaseous methane and methanol

   Author : Ludvig Adlercreutz; Andreas Cronhjort; Ola Stenlåås; Magnus Sjöberg; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gaseous methane combustion; spark ignition; single cylinder research engine; particle number; particle emissions; oil ash content; CO2; Green House Gases; engine testing; engine development; emissions; combustion chamber design; injector fouling; environmental impact; road transportation; Machine Design; Maskinkonstruktion;

   Abstract :  This thesis covers some of the environmental impacts of internalcombustion engines running on alternative fuels. The focus of thestudies conveyed is the reduction of greenhouse gases and particleemissions, as these two factors are of great importance for the pathsthat road transportation is facing. READ MORE

7. 5. Graybox Modelling of Ships Using Indirect Input Measurements

   Author : Jonas Linder; Martin Enqvist; Fredrik Gustafsson; Johan Sjöberg; Magnus Mossberg; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : A ship's roll dynamics is very sensitive to changes in the loading conditions and a worst-case scenario is that the ship will capsize. Actually, the mass and center of mass are two of the most influential parameters in most mechanical systems. READ MORE