| 1. |
- Antti, Lena, et al.
(författare)
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Redistribution of moisture in pre-dried pinewood using microwave power : a preliminary study
- 2010
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Ingår i: Proceedings, 11th International IUFRO Wood Drying Conference. - Luleå : Luleå tekniska universitet. ; , s. 234-238
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Konferensbidrag (refereegranskat)abstract
- Commonly, during air-circulation kiln drying moisture gradients within wood cross-sections are developed, i.e. thesurfaces become drier than the interior. To minimize these gradients a conditioning step subsequent to the drying isneeded. The aim with this study was to investigate the possibility to use microwave power for redistribution ofmoisture within pinewood planks after air-circulation kiln drying to the average moisture content 0,14. Twodimensions of pinewood were tested; thickness 50 and 63 mm, in two different plants, generating 5 and 12 kWmicrowave power respectively. Results show that microwave energy give rise to a fast and advantageous moistureredistribution i.e. equalization of moisture content within the wood. The higher microwave power density the fasterheating and moisture equalization in these wood dimensions. Required time for heating and redistribution ofmoisture was found to be as short as 3 minutes at the power density 500 kW/m3. In addition, split-tests indicatedecreased or almost no gap in the investigated specimens.
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| 2. |
- Husebø, Dag, et al.
(författare)
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Teoribruk og teoriutvikling i aksjonsforskning i møte med mangfold som samfunnsrealitet
- 2017
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Ingår i: Aksjonsforskning i Norge. - Oslo : Cappelen Damm Akademisk. - 9788202529819 - 9788202567781 ; , s. 95-112
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Bokkapitel (refereegranskat)abstract
- This chapter starts from two assumptions. First, Western European societies are characterized by changing religious, ethnic and linguistic diversity. Second, this is perceived as a challenge to both existing knowledge and practice, while at the same time it lays the basis for new knowledge and practice. The chapter discusses how knowledge production and the development of new practices may come about simultaneously, using action research as a way of addressing existing social complexity. We also revisit an earlier action research project, which focused on religious education and diversity. A main aim was how to deal with sociocultural diversity as part of subject area teaching and learning. The chapter addresses how theory was used and subsequently developed through different phases of three sub-projects.
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