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- El Hinaoui-Hamze, Hasan, 1973
(author)
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An Interactive Traction Motors Design and Selection Software
- 2005
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Licentiate thesis (other academic/artistic)abstract
- Use of electric motors in vehicle traction, in fact, predates the internal combustion engines (ICEs). Electric vehicles powered by dc motors were known as far back as 1890. Compared with vehicles powered by ICEs, the main drawback of the early electric vehicles was, and still is, their limited range and long recharging time. To overcome this, in recent years, developments have been focused on hybrid electrical vehicles (HEVs) combining two sources of energy: an ICE of a conventional vehicle and an electric motor (or motors). Such a hybrid vehicle enables the driver (or the vehicle computerised energy management system) to decide which source of power is appropriate for a particular journey.Drive Trains for HEVs are of course more complex than both conventional ICEs and totally electric vehicles. Design of HEVs, therefore, encompasses several technologies and the vehicle designer cannot be expected to be an expert in all related fields. In particular, it is recognised that vehicle designers may not be familiar with electric drive systems. The work reported here aims to provide a design tool to enable decisions to be made on type and feasibility of traction motors to meet specific traction requirements.In the first part of the software described in this thesis normalized curves, giving theoretically available force density values for different cooling arrangements, are utilised, after adopting piecewise linear approximations, to provide the vehicle designer with a quick answer to whether or not drive requirements can be met within a specified space envelope. Once the requirements are deemed feasible, the user can progress to the second part of the programme in which detailed design work for a selected drive topology is carried out. Thereafter, the user can export drive details into a number of commercially available CAE packages to perform further investigations (e.g. dynamic performance). Due to time constraints, only induction motor systems are fully developed in the reported work. However, the design of the software allows for modules relating to conventional dc, reluctance and brushless dc drives to be added at a later stage.
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- El Houssami, Mohamad, et al.
(author)
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EUFireStat Project - Final report
- 2022
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Reports (other academic/artistic)abstract
- EU FireStat project brings together the knowledge and experience of nine different international fire safety institutions. The project maps the existing fire data collected across Member States and proposed meaningful data sets to allow decisions on fire safety at Member State and at EU level. This project was carried out by a consortium composed of nine international fire safety institutions: Efectis, NFPA, DBI, University of Edinburgh, BAM, VFDB, CTIF, Unviersity of Lund and EuroFSA Further information: https://eufirestat-efectis.com/
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- Rådesjö, Megan
(author)
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Learning and growing from 'communities of practice': autoethnographic narrative vignettes of an aspiring educational researcher's experience
- 2018
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In: Reflective Practice. - : Informa UK Limited. - 1462-3943 .- 1470-1103. ; 19:1, s. 68-80
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Journal article (peer-reviewed)abstract
- This is an autoethnographic study that inquiries into my own journey as an aspiring educational researcher throughout the second course of my Master's Program at the University of Gothenburg in Sweden. My experiences take place in the context of a group of real educational researchers and their on-going research project at the faculty of education called Beyond Plant Blindness: Seeing the importance of plants for a sustainable world' (BPB). All of the experiences included in this study are expressed in the form of chronologically ordered narrative vignettes. In order to bring theoretical meaning to these experiences, the vignettes were critically reflected upon and interpreted through the concept Communities of Practice (CoP), which is central to situated learning theory. Through this conceptual lens, my experiences revealed that an aspiring educational researcher may feel emotional and intellectual growth as a newcomer who is granted legitimate peripheral participation in the 'real' researcher CoP. Consequently, this study sheds light on ways that real researchers may play a part in shaping the identities of aspiring educational researchers through learning experiences. However, more generally, this study may facilitate fresh conversations about the complexities of learning, identity, and inclusion in the field of educational research.
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- Tillman, Carin, et al.
(author)
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The Relation Between Working Memory Components and ADHD Symptoms From a Developmental Perspective
- 2011
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In: Developmental Neuropsychology. - : Informa UK Limited. - 8756-5641 .- 1532-6942. ; 36:2, s. 181-198
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Journal article (peer-reviewed)abstract
- The objective was to examine the relations between attention deficit hyperactivity disorder (ADHD) symptoms and four working memory (WM) components (short-term memory and central executive in verbal and visuospatial domains) in 284 6-16-year-old children from the general population. The results showed that verbal and visuospatial short-term memory and verbal central executive uniquely contributed to inattention symptoms. Age interacted with verbal short-term memory in predicting inattention, with the relation being stronger in older children. These findings support the notion of ADHD as a developmental disorder, with changes in associated neuropsychological deficits across time. The results further indicate ADHD-related deficits in several specific WM components.
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