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  • A. Hosseini, Vahid, et al. (författare)
  • Microstructure and functionality of a uniquely graded super duplex stainless steel designed by a novel arc heat treatment method
  • 2018
  • Ingår i: Materials Characterization. - : Elsevier. - 1044-5803 .- 1873-4189. ; 139, s. 390-400
  • Tidskriftsartikel (refereegranskat)abstract
    • A novel arc heat treatment technique was applied to design a uniquely graded super duplex stainless steel (SDSS), by subjecting a single sample to a steady state temperature gradient for 10 h. A new experimental approach was used to map precipitation in microstructure, covering aging temperatures of up to 1430 °C. The microstructure was characterized and functionality was evaluated via hardness mapping. Nitrogen depletion adjacent to the fusion boundary depressed the upper temperature limit for austenite formation and influenced the phase balance above 980 °C. Austenite/ferrite boundaries deviating from Kurdjumov–Sachs orientation relationship (OR) were preferred locations for precipitation of σ at 630–1000 °C, χ at 560–1000 °C, Cr2N at 600–900 °C and R between 550 °C and 700 °C. Precipitate morphology changed with decreasing temperature; from blocky to coral-shaped for σ, from discrete blocky to elongated particles for χ, and from polygonal to disc-shaped for R. Thermodynamic calculations of phase equilibria largely agreed with observations above 750 °C when considering nitrogen loss. Formation of intermetallic phases and 475 °C-embrittlement resulted in increased hardness. A schematic diagram, correlating information about phase contents, morphologies and hardness, as a function of exposure temperature, is introduced for evaluation of functionality of microstructures. 
  • A Nordic Perspective on Co‐Operation for Sustainable Destination and Regional Development
  • 2015
  • Samlingsverk (redaktörskap) (refereegranskat)abstract
    • This research report contributes to a Nordic perspective on co-operation for sustainable destination- and regional development based on studies conducted within a Swedish-Danish Interreg project 2012-2014 (MARIFUS). An introduction chapter with major themes initiates this report followed by five chapters1 written by researchers from Aalborg University, Denmark (Incevida) and University West, Sweden (School of Business, Economics and IT). The purpose of this report is to give deeper nsights in Nordic destination and regional development by empirical case studies. These studies have been presented and discussed at seminars during international scientific conferences within regional science (the 16th Uddevalla Symposium 2013 in Kansas City, USA and the 17th Uddevalla Symposium 2014 in Uddevalla, Sweden) organized by University West. The contributions are nterdisciplinary in that sense that they are written by scholars from different scientific disciplines such as business administration, informatics, planning and culture studies. However, all scholars have a destination and/or regional perspective as a point of departure in the case studies conducted. The three-year project offered great opportunities to cross-border learning and applied research in close co-operation (Work integrated learning) with project partners and students.The studies are partly supported by the project MARIFUS “Maritime Inlands – past, present and future strengths” financed by the European Union Regional Development Fund (Interreg IV A). The editors express sincere gratitude to all authors and all partners of the MARIFUS project. 
  • Abdulla, Afrah, 1975- (författare)
  • Readiness or resistance? : Newly arrived adult migrants' experiences, meaning making, and learning in Sweden
  • 2017
  • Doktorsavhandling (övrigt vetenskapligt)abstract
    • This thesis is about newly arrived adult migrants’ meaning making and learning in Swedish society during the two years’ introduction period, after they have received the residence permit. I have specifically studied Arabic speaking adults’ meaning making and learning, by carrying out observations and individual in-depth interviews with 12 migrants. The introduction period consists mainly of three so called introduction measures; the civic orientation course, Swedish for immigrants (SFI), and different work related activities, such as internship at different work places.The results show that etablering is about shaping the newly arrived adult migrants into ”good” citizens, through the introduction measures, among other things in the civic orientation course, which is regulated through the policy documents, and which so to say provides meaning to the newly arrived. The “good” citizen has some specific characteristics, which, roughly, are that he or she is independent (and advocates individuality), free, equality thinking, secularized, law-abiding (which includes being honest), responsible, and a “good” parent. These characteristics are expressed in different ways in the civic orientation course, for instance through the course material. The Swedish society is described as something desirable, and different from what is implied to be ”Arabic” values and ways of thinking. The idea of the “good” citizen appears to aim at constructing the adult migrants’ (and their families’) identity, something which many of the study’s respondents make a resistance to.As concerns the migrant’s new experiences, it is, for example, those which the migrant get through the contact with the Swedish Public Employment Service (SPES) that affect the meaning making in the new society. The meaning which most of the respondents have made of the SPES’s measures for them is that this authority only offers “prepackaged” solutions, and does not provide the help or support that they need. Also the experiences which the migrant has in the civic orientation course, and the meaning which ”old” migrants give to him or her, play a role when he or she makes meaning of Sweden and Swedes, and of his or her new life situation. Further, it has been shown that it is those experiences that the adult individual has been socialized through, and those which he or she has gained through work or education in his or her country of origin, which affect his or her meaning making in Sweden. It is mostly values which concern child upbringing and religion that lead to a certain understanding and construction of one’s new life. These values, when related to the values which are included in the ”good” citizen idea, also lead to either a resistance or a readiness towards the meaning giving that is embedded in the ”good” citizen notion.
  • Abelin, Åsa, 1953-, et al. (författare)
  • The perceptual weight of word stress, quantity and tonal word accent in Swedish
  • 2018
  • Ingår i: Phonology in Protolanguage and Interlanguage. - Sheffield : Equinox Publishing. - 9781781795644 ; , s. 316-341
  • Bokkapitel (övrigt vetenskapligt)abstract
    • Wherever migration or travelling takes place, people need to learn new languages. This learning entails a variety of interlanguages. Irrespective of whether you are a learner or a teacher of a language, you need to decide how to allocate time and effort for learning and teaching into developing different sub-skills of the language. Four skills are considered in second language teaching and learning; listening, reading, speaking and writing. Proficiency in speaking requires sub-competences, such as pragmatic competence, fluency or making a clear pronunciation. Even having each of these sub-competences for speaking require having sub-skills. For example, to have a "good" pronunciation, one needs to well realise segmental features: phonemes, phonotactics, assimilations, and prosodic features: rhythm and intonation. Most of the time, young children learning their first language (L1) as well as additional languages (L2's) acquire these pronunciation skills without formal training and often reach a native-like speech also in additional languages. By contrast, adult learners of an additional language seldom reach nativelikeness in their pronunciation of the language. However, ideally, they still can achieve a fluent, intelligible and well-received pronunciation of the language. The present paper is concerned with the pronunciation of Swedish as an additional language, in particular, three phonemic prosodic contrasts, namely stress contrast, quantity contrast and tonal word accent contrast. We attempt to find out, among these three prosodic contrasts, which is more crucial than the others for making one's speech intelligible. That is, if the second language learner cannot acquire all of them perfectly, which of them should be given more priority in learning and teaching Swedish pronunciation? We also want to study whether or not a pronunciation lacking one or two of these contrasts can still be well understood.
  • Abou Nada, Fahd Jouda, et al. (författare)
  • Remote temperature sensing on and beneath atmospheric plasma sprayed thermal barrier coatings using thermographic phosphors
  • Ingår i: Surface & Coatings Technology. - : Elsevier. - 0257-8972 .- 1879-3347. ; 302, s. 359-367
  • Tidskriftsartikel (refereegranskat)abstract
    • Investigations on remote temperature sensing of yttria stabilized zirconia (YSZ) thermal barrier coatings (TBCs) at the surface and at the bond-coat/top-coat interface were carried out. Using Y2O3:Eu thermographic phosphor as an embedded temperature sensing layer, sub-surface temperature probing through 300 μm of atmospheric plasma sprayed YSZ is demonstrated. The Y2O3:Eu thermographic phosphor displays a temperature sensitivity ranging between 400 °C up to a maximum of 900 °C when utilizing the luminescence originating from the 611 nm emission band. Dysprosium stabilized zirconia (10 wt.% DySZ), a TBC material, is also investigated and established as a temperature sensor from 400 °C up to a temperature of 1000 °C using both the intensity decay time and emission intensity ratio methods. In addition, the luminescence of presumed optically inactive YSZ materials was spectroscopically investigated in terms of optical interferences caused by impurities. A validation temperature probing measurement through 300 μm of YSZ top-coat was successfully performed in a SGT-800 Siemens burner running at six different operating conditions in an atmospheric combustion rig.
  • Abraham, Getahun Yacob, 1958-, et al. (författare)
  • Internationalisation in teacher education : student teachers’ reflections on experiences from a field study in South Africa
  • 2018
  • Ingår i: Education Inquiry. - : Taylor & Francis. - 2000-4508 .- 2000-4508. ; 9:4, s. 347-362
  • Tidskriftsartikel (refereegranskat)abstract
    • Internationalisation of higher education and teacher education has been a key issue since the 1990s and many universities still attempt to increase student mobility ever since. Much research has been done on the topic of internationalisation and higher education, including teacher education trying to show how a certain programme impacts on students’ learning, especially intercultural learning when it comes to programmes in teacher education. These studies are often directed towards programmes that last several months or a whole year. The focus of this study is rather to explore if and in what way experiences in a two-week field study can contribute to a student teacher’s intercultural learning and professional development. The findings of the research show that even a short field study has an important impact on the individual student teacher’s understanding of themselves and on awareness of teachers’ living and working conditions in a different culture like South Africa.
  • Abrahamsson, Sten, et al. (författare)
  • Integrated Management Systems : testing a model for integration
  • 2011
  • Ingår i: 14th Toulon-Verona Conference. - Alicante : University of Alicante. - 9788890432712 ; , s. 22-35
  • Konferensbidrag (refereegranskat)abstract
    • Management systems are widely used for creating order, minimising risks and for assuring performance. Management systems are in many occasions integrated since this has been found to be beneficial. In this paper a model for a fully integrated management system (IMS) based on the three axes of level, extent and scope of integration is tested for relevance. The studied system permits the integration of all relevant process dimensions. The research is only in a pilot stage, but the initial results are promising and indicate that there are advantages in using the process view as a base for identifying critical aspects to be managed. A review of the current situation for system integration is studied and the model is subjected to some tests using Sweden as a case. The background study shows that system integration still is limited, especially when comparing with a fully integrated IMS. The feedback from the organisations interviewed is positive and supports continued work with development of the model.
  • Abrandt Dahlgren, Madeleine, et al. (författare)
  • From senior student to novice worker : learning trajectories in political science, psychology and mechanical engineering.
  • 2006
  • Ingår i: Studies in Higher Education. - Abingdon, England : Routledge. - 0307-5079 .- 1470-174X. ; 31:5, s. 569-586
  • Tidskriftsartikel (refereegranskat)abstract
    • This longitudinal study focuses on the transition from higher education to working life. Research has hitherto described the transition in rather general terms, and there is still only limited knowledge about how graduates construe themselves as professionals, or how they experience the transition to the sociocultural contexts of working life. In this study, the transition is viewed as a trajectory between different communities of practice. Three different Master’s programmes at Linköping University are focused on and compared: political science, psychology and mechanical engineering. The specific aims are to: (i) identify aspects of identity and knowledge formation as reported by informants, both as...
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