| 1. |
- Persson, Henrik, et al.
(författare)
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B.E.A.C.O.N. - Beacon Emits Audio from Color, Or Not
- 2013
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Konferensbidrag (refereegranskat)abstract
- People who suffer from dementia are often isolated due to lack of ways of communication. In many cases verbal communication can be difficult to perform at all. We created Beacon with the goal to let people with dementia interact with a very simple and intuitive control interface to give them a means of non-verbal communication, and let them take control over the soundscapes that Beacon is capable of producing. In this paper we describe our concept Beacon, its physical form and how the design makes it possible for a person with dementia to control the software by moving around items of different colors and sizes on its surface to create synthesized and sampled sounds. We hope that Beacon will produce positive results among people with dementia, and that the interaction will be rewarding.
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| 2. |
- Persson, Magnus, et al.
(författare)
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Non-invasive measurement of arterial longitudinal movement
- 2002
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Ingår i: Proceedings of the IEEE Ultrasonics Symposium. - 1051-0117. ; 2, s. 1783-1786
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Konferensbidrag (refereegranskat)abstract
- In arterial vessel wall characterisation the longitudinal movements of vessels have gained little or no attention. It has been presumed that the arterial vessels move very little in the longitudinal direction. With modern high resolution ultrasound it can, however, be seen that arterial vessels move not only in the circumferential, but also in longitudinal direction. This paper describes a non-invasive, ultrasound based method which estimates the longitudinal and the circumferential movement, respectively. The method is demonstrated in a limited in vivo study of the common carotid artery. Results show that, apart from the well known circumferential movement, there is a distinct longitudinal movement.
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| 3. |
- Svanberg, Sune, et al.
(författare)
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Applications of terawatt lasers
- 1994
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Ingår i: LASER SPECTROSCOPY - XITH INTERNATIONAL CONFERENCE. - : AIP. - 1551-7616 .- 0094-243X. - 1563962624 ; :290, s. 264-269
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Konferensbidrag (refereegranskat)
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| 8. |
- Anderson, Johan, 1973-, et al.
(författare)
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Assessment of Self-Heating in Wood Pellets by FE Modelling
- 2017
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Konferensbidrag (refereegranskat)abstract
- The self-heating process in a laboratory scale experiment has been modelled using the Comsol Multiphysics software. In the simulations the gas flow and air movement in the volume and heat diffusion in the bulk were taken into account however only one reaction in the pellets bulk is considered. The input data is found from measurements of the reaction chemistry and the heat transfer properties. It is found that all relevant physics is needed in order to obtain reasonable predictions in particular the heat transfer between the bulk and the gas is important but also condensation and evaporation of moisture.
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| 9. |
- Axelsson, Emil, 1978, et al.
(författare)
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Feldspar: A Domain Specific Language for Digital Signal Processing algorithms
- 2010
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Ingår i: Eighth ACM/IEEE International Conference on Formal Methods and Models for Codesign. - 9781424478859 ; , s. 169-178
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Konferensbidrag (refereegranskat)abstract
- A new language, Feldspar, is presented, enabling high-level and platform-independent description of digital signal processing (DSP) algorithms. Feldspar is a pure functional language embedded in Haskell. It offers a high-level dataflow style of programming, as well as a more mathematical style based on vector indices. The key to generating efficient code from such descriptions is a high-level optimization technique called vector fusion. Feldspar is based on a low-level, functional core language which has a relatively small semantic gap to machine-oriented languages like C. The core language serves as the interface to the back-end code generator, which produces C. For very small examples, the generated code performs comparably to hand-written C code when run on a DSP target. While initial results are promising, to achieve good performance on larger examples, issues related to memory access patterns and array copying will have to be addressed.
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| 10. |
- Axelsson, Emil, 1978, et al.
(författare)
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The Design and Implementation of Feldspar: An Embedded Language for Digital Signal Processing
- 2011
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Ingår i: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). - Berlin, Heidelberg : Springer Berlin Heidelberg. - 1611-3349 .- 0302-9743. - 9783642242755 ; 6647, s. 121-136
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Konferensbidrag (refereegranskat)abstract
- Feldspar is a domain specific language, embedded in Haskell, for programming digital signal processing algorithms. The final aim of a Feldspar program is to generate low level code with good performance. Still, we chose to provide the user with a purely functional DSL. The language is implemented as a minimal, deeply embedded core language, with shallow extensions built upon it. This paper presents full details of the essential parts of the implementation. Our initial conclusion is that this approach works well in our domain, although much work remains.
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