Search for dissertations about: "Per Norström"

Showing result 1 - 5 of 8 swedish dissertations containing the words Per Norström.

2. 1. Technological knowledge and technology education

   Author : Per Norström; Sven Ove Hansson; Per Sandin; Peter Kroes; KTH; []
   Keywords : HUMANIORA; HUMANITIES; philosophy of technology; epistemology of technology; technology education; technological knowledge; rule of thumb; explanation; Filosofi; Philosophy;

   Abstract : Technological knowledge is of many different kinds, from experience-based know-how in the crafts to science-based knowledge in modern engineering. It is inherently oriented towards being useful in technological activities, such as manufacturing and engineering design. READ MORE

4. 2. Technology education and non-scientific technological knowledge

   Author : Per Norström; Sven Ove Hansson; Per Sandin; Inga-Britt Skogh; Ibo van de Poel; KTH; []
   Keywords : HUMANIORA; HUMANITIES; rule of thumb; technical knowledge; technological knowledge; technology education; epistemology of technology; design process; modelling;

   Abstract : This thesis consists of two essays and an introduction. The main theme is technological knowledge that is not based on the natural sciences.The first essay is about rules of thumb, which are simple instructions, used to guide actions toward a specific result, without need of advanced knowledge. READ MORE

5. 3. To know a subject - Teachers' views about the subject of technology : How the subject of technology is described and approached by teachers in the lower secondary school

   Author : Birgit Fahrman; Inga-Britt Skogh; Lena Gumaelius; Per Norström; Kilbrink Nina; KTH; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Technology education; experienced technology teachers; novice technology teachers; compulsory school; Teknikvetenskapens lärande och kommunikation; Education and Communication in the Technological Sciences; Teknik och lärande; Technology and Learning;

   Abstract : For teaching to be successful, teachers must be well-educated and have knowledge in many different fields. With a combination of solid subject knowledge, good teaching skills and the ability to balance these qualities, teachers can support students’ learning. READ MORE

6. 4. Treatment of domestic wastewater using microbiological processes and hydroponics in Sweden

   Author : Anna Norström; Gunnel Dalhammar; Jörgen Hanaeus; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Microbiology; biological; hydroponics; microbial composition; nitrogen; organic matter; phosphorus; small scale; theoretical energy requirements; wastewater treatment.; Mikrobiologi; Microbiology; Mikrobiologi;

   Abstract : Conventional end-of-pipe solutions for wastewater treatment have been criticized from a sustainable view-point, in particular regarding recycling of nutrients. The integration of hydroponic cultivation into a wastewater treatment system has been proposed as an ecological alternative, where nutrients can be removed from the wastewater through plant uptake; however, cultivation of plants in a temperate climate, such as Sweden, implies that additional energy is needed during the colder and darker period. READ MORE

7. 5. Soil and stream water chemistry in a boreal catchment - interactions, influences of dissolved organic matter and effects of wood ash application

   Author : Sara H Norström; Ulla Lundström; Dan Bylund; Mittuniversitetet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Boreal forest; catchment studies; dissolved organic carbon; soil solution; Chemistry; Kemi;

   Abstract : Two small bordering catchments in Bispgården, Central Sweden, wereinvestigated in regard to soil solution and stream water chemistry during the frostfree seasons of 2003-2007. Both catchments were drained by first order streams,Fanbergsbäcken and Gråbergsbäcken, and in Fanbergsbäckens catchment anextensive investigation of the soil and soil solution chemistry was conducted bylysimeter and centrifugation sampling. READ MORE