| 1. |
- Xu, Cheng
(författare)
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A Segmented Silicon Strip Detector for Photon-Counting Spectral Computed Tomography
- 2012
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Konstnärligt arbete (övrigt vetenskapligt/konstnärligt)abstract
- Spectral computed tomography with energy-resolving detectors has a potential to improve the detectability of images and correspondingly reduce the radiation dose to patients by extracting and properly using the energy information in the broad x-ray spectrum. A silicon photon-counting detector has been developed for spectral CT and it has successfully solved the problem of high photon flux in clinical CT applications by adopting the segmented detector structure and operating the detector in edge-on geometry. The detector was evaluated by both the simulation and measurements.The effects of energy loss and charge sharing on the energy response of this segmented silicon strip detector with different pixel sizes were investigated by Monte Carlo simulation and a comparison to pixelated CdTe detectors is presented. The validity of spherical approximations of initial charge cloud shape in silicon detectors was evaluated and a more accurate statistical model has been proposed.A photon-counting energy-resolving application specific integrated circuit (ASIC) developed for spectral CT was characterized extensively by electrical pulses, pulsed laser and real x-ray photons from both the synchrotron and an x-ray tube. It has been demonstrated that the ASIC performs as designed. A noise level of 1.09 keV RMS has been measured and a threshold dispersion of 0.89 keV RMS has been determined. The count rate performance of the ASIC in terms of count loss and energy resolution was evaluated by real x-rays and promising results have been obtained.The segmented silicon strip detector was evaluated using synchrotron radiation. An energy resolution of 16.1% has been determined with 22 keV photons in the lowest flux limit, which deteriorates to 21.5% at an input count rate of 100 Mcps mm−2. The fraction of charge shared events has been estimated and found to be 11.1% for 22 keV and 15.3% for 30 keV. A lower fraction of charge shared events and an improved energy resolution can be expected by applying a higher bias voltage to the detector.
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| 2. |
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Människan i medicinen : En utställning om medicinsk humaniora
- 2019
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Konstnärligt arbeteabstract
- Vad händer med människors bild av sig själva och sin kropp när de blir del av en medicinsk verksamhet? Hur ändras synen på människan genom medicinsk utveckling? Och vilka föreställningar om människor styr vården och dess organisation?Medicinsk humaniora och samhällsvetenskap är ett tvärvetenskapligt forskningsfält som studerar komplexa relationer mellan hälsa, sjukdom, medicinsk utveckling och kultur. Ämnet kan förse kliniskt verksamma och studenter inom medicin- och vårdutbildningar med nya perspektiv på centrala frågor kring människors hälsa eller vårdens vardag – frågor som inte alltid får utrymme i en tid där vården tvingas till effektivisering och medicinsk utveckling sker i allt snabbare takt.Människan i medicinen lyfter fram några aktuella forskningsprojekt vid Linköpings universitet, avslutade såväl som nystartade.
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| 3. |
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| 4. |
- Andersson, Anders-Petter, 1969-, et al.
(författare)
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Designing empowering vocal and tangible interaction :
- 2013
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Ingår i: The International conference on new interfaces for musical expression. - Kaejeon, Korea : Seoul National University. ; , s. 406-412
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Konferensbidrag (refereegranskat)abstract
- Our voice and body are important parts of our self-experience, and our communication and relational possibilities. They gradually become more important for Interaction Design due to increased development of tangible interaction and mobile communication. In this paper we present and discuss our work with voice and tangible interaction in our ongoing research project RHYME. The goal is to improve health for families, adults and children with disabilities through use of collaborative, musical, tangible media. We build on the use of voice in Music Therapy and on a humanistic health approach. Our challenge is to design vocal and tangible interactive media that through use reduce isolation and passivity and increase empowerment for the users. We use sound recognition, generative sound synthesis, vibrations and cross-media techniques to create rhythms, melodies and harmonic chords to stimulate voice-body connections, positive emotions and structures for actions.
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| 5. |
- Andersson, Anders-Petter, 1969-, et al.
(författare)
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Vocal and tangible technology for music and health
- 2013
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Ingår i: Book of abstracts. - Oslo : The Norwegian Academy of Music. ; , s. 24-24
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Konferensbidrag (refereegranskat)abstract
- Our voice and body are important parts of our self-expression and self-experience. They are also essential for our way to communicate and build relations cross borders like abilities, ages, locations, backgrounds and cultures. Voice and tangibility gradually become more important when developing new music technology for the Music Therapy and the Music and Health fields, due to new technology possibilities that have recently arisen. For example smartphones, computer games and networked, social media services like Skype. In this paper we present and discuss our work with voice and tangible interaction in our ongoing research project. The goal is to improve health for families, adults and children with severe disabilities through use of collaborative, musical, tangible sensorial media. We build on use of voice in Music Therapy and studies by Lisa Sokolov, Diane Austin, Kenneth Bruscia and Joanne Loewy. Further we build on knowledge from Multi-sensory stimulation and on a humanistic health approach. Our challenge is to design vocal and tangible, sensorially stimulating interactive media, that through use reduce isolation and passivity and increase empowerment for all the users. We use sound recognition, generative sound synthesis, vibrations and cross- media techniques, to create rhythms, melodies and harmonic chords to stimulate body- voice connections, positive emotions and structures for actions. The reflections in this paper build on action research methods, video observations and research-by-design methods. We reflect on observations of families and close others with children with severe disabilities, interacting in three vocal and tangible installations.
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| 6. |
- Andersson, Anders-Petter, 1969-, et al.
(författare)
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Vocal and tangible interaction crossing borders
- 2013
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Ingår i: Include Asia 2013 Proceedings. - London : Helen Hamlyn Centre of Design, The Royal College of Art in London, The Hong Kong Design Centre. - 9781907342707
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Konferensbidrag (refereegranskat)abstract
- Our voice and body are important parts of our self-expression and self-experience for all of us. They are also essential for our way to communicate and build relations cross borders such as abilities, ages, locations and backgrounds. Voice, body and tangibility gradually become more important for ICT, due to increased development of tangible interaction and mobile communication. The voice and tangible interaction therefore also become more important for the Universal Design field. In this paper we present and discuss our work with voice and tangible interaction in our ongoing research project RHYME. The goal is to improve health for families, adults and children with disabilities through use of collaborative, musical, tangible and sensorial media. We build on use of voice in Music Therapy, knowledge from multi-sensory stimulation and on a humanistic health approach. Our challenge is to design vocal and tangible interactive media that are sensorially stimulating. Interactive media that through use reduce isolation and passivity and increase empowerment for all the users. We use sound recognition, generative sound synthesis, vibrations and cross-media techniques, to create rhythms, melodies and harmonic chords to stimulate voice-body connections, positive emotions and structures for actions.
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| 7. |
- Cappelen, Birgitta, 1962-, et al.
(författare)
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Towards an empowering tangible interaction design for diversity
- 2013
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Ingår i: Include Asia 2013 Proceedings. - London : The Helen Hamlyn Centre for Design, The ROyal College of Art in London, Hong Kong Desing Centre. - 9781907342707
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Konferensbidrag (refereegranskat)abstract
- The seven principles of Universal Design, such as ”4. Perceptible Information” and ”5. Tolerance for errors”, are formulated from the design’s or system’s perspective. The principles focus on the qualities of the system or design, not on the value of use, the long time experience and use by many different people. Nor do the principles embrace a cultural and social understanding of the value of things, designs and situations. In this paper we argue for the necessity to broaden this narrow system or product design perspective, when designing to empower diverse users. Our field of study is musical and cross-media Tangible Interaction Design, where multimedia computer capabilities are included in everyday objects. Our goal is to motivate social and musical co-creation for families with disabled children to improve their health and quality of life. To extend our design thinking, practice and understanding of a design’s value, meaning and empowering potential, we build on a humanistic health approach, resource-oriented thinking, Positive psychology and Empowerment philosophy. In the paper we present and discuss how we design cross-media, interactive, tangible and musical things to motivate and empower a variety of users in our on-going RHYME project.
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| 8. |
- Bågander, Linnea, et al.
(författare)
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Enabling (e)motion
- 2020
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Ingår i: Dance Articulated. ; 6:1, s. 25-44
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Tidskriftsartikel (refereegranskat)abstract
- This article discusses a practical exploration of the ability of a textile to meet with and affect bodies. It builds on the inherent ability of textiles, particularly in the form of a garment, to evoke movements and emotions. This paper suggests a shift in focus of the design of bodily materiality, towards an expression emerging from interactions connecting materiality and performativity. The findings are the result of 2.5 years of exploration, during which four performances, ten workshops, and four exhibitions were performed. The entwined parameters of expressing and informing are applied as a material choreographic thinking, which in this case results in a material choreography of openness, where expressing and informing are essential as entwined design parameters in the design of body-material interactions. The material choreography is developed as a method for addressing somatic experience, with improvements in terms of wellbeing and presence as aesthetic goals, focusing on reducing movements and emotions relating to stress for people suffering from chronic fatigue syndrome.
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