| 1. |
- Rieth, M., et al.
(författare)
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Review on the EFDA programme on tungsten materials technology and science
- 2011
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Ingår i: Journal of Nuclear Materials. - : Elsevier BV. - 0022-3115 .- 1873-4820. ; 417:1-3, s. 463-467
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Tidskriftsartikel (refereegranskat)abstract
- All the recent DEMO design studies for helium cooled divertors utilize tungsten materials and alloys, mainly due to their high temperature strength, good thermal conductivity, low erosion, and comparably low activation under neutron irradiation. The long-term objective of the EFDA fusion materials programme is to develop structural as well as armor materials in combination with the necessary production and fabrication technologies for future divertor concepts. The programmatic roadmap is structured into four engineering research lines which comprise fabrication process development, structural material development, armor material optimization, and irradiation performance testing, which are complemented by a fundamental research programme on "Materials Science and Modeling". This paper presents the current research status of the EFDA experimental and testing investigations, and gives a detailed overview of the latest results on fabrication, joining, high heat flux testing, plasticity, modeling, and validation experiments.
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| 2. |
- Barradas, Gonçalo, et al.
(författare)
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Emotional Reactions to Music in Dementia Patients and Healthy Controls : Differential Responding Depends on the Mechanism
- 2021
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Ingår i: Music & Science. - London, UK : Sage Publications. - 2059-2043. ; 4, s. 1-21
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Tidskriftsartikel (refereegranskat)abstract
- Music is frequently regarded as a unique way to connect with dementia patients. Yet little is known about how persons with dementia respond emotionally to music. Are their responses different from those of healthy listeners? If so, why? The present study makes a first attempt to tackle these issues in a Portuguese context, with a focus on psychological mechanisms. In Experiment 1, featuring 20 young and healthy adults, we found that musical excerpts which have previously been shown to activate specific emotion induction mechanisms (brain stem reflex, contagion, episodic memory, musical expectancy) in Sweden were valid and yielded predicted emotions also in Portugal, as indexed by self-reported feelings, psychophysiology, and post hoc mechanism indices. In Experiment 2, we used the same stimuli to compare the responses of 20 elderly listeners diagnosed with Alzheimer’s disease (AD) with those of 20 healthy listeners. We controlled for cognitive functioning (Mini-Mental State Examination) and depression (Geriatric Depression Scale). Our predictions about how mechanisms would be differentially affected by decline in brain regions associated with AD received support in that AD patients reported significantly lower levels of (a) sadness in the contagion condition, (b) happiness and nostalgia in the episodic memory condition, and (c) anxiety in the musical expectancy condition. In contrast, no significant difference in reported surprise was found in the brain stem reflex condition. Implications for musical interventions aimed at dementia are discussed.
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| 3. |
- Frank, Mark G, et al.
(författare)
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Technical issues in recording nonverbal behavior
- 2005
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Ingår i: The new handbook of methods in nonverbal behavior research. - : Oxford University Press, New York. - 0198529619 ; , s. 449-470
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Bokkapitel (refereegranskat)
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| 4. |
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| 5. |
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| 6. |
- Friberg, Anders, et al.
(författare)
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Automatic real-time extraction of musical expression
- 2002
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Ingår i: Proceedings of the International Computer Music Conference 2002. ; , s. 365-367
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Konferensbidrag (refereegranskat)abstract
- Previous research has identified a set of acoustical cues that are important in communicating different emotions in music performance. We have applied these findings in the development of a system that automatically predicts the expressive intention of the player. First, low-level cues of music performances are extracted from audio. Important cues include average and variability values of sound level, tempo, articulation, attack velocity, and spectral content. Second, linear regression models obtained from listening experiments are used to predict the intended emotion. Third, the prediction data can be visually displayed using, for example, color mappings in accordance with synesthesia research. Preliminary test results indicate that the system accurately predicts the intended emotion and is robust to minor errors in the cue extraction.
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| 7. |
- Friberg, Anders, et al.
(författare)
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CUEX: An algorithm for automatic extraction of expressive tone parameters in music performance from acoustic signals
- 2007
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Ingår i: Acta Acoustica united with Acustica. - 1610-1928 .- 1861-9959. ; 93:3, s. 411-420
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Tidskriftsartikel (refereegranskat)abstract
- CUEX is an algorithm that from recordings of solo music performances extracts the tone parameters for tempo, sound level, articulation, onset velocity, spectrum, vibrato rate, and vibrato extent. The aim is to capture the expressive variations in a music performance, rather than to identify the musical notes played. The CUEX algorithm uses a combination of traditional methods to segment the audio stream into tones based on fundamental frequency contour and sound level envelope. From the resulting onset and offset positions, the different tone parameters are computed. CUEX has been evaulated using both synthesized performances and recordings of human performances. For the synthesized performances, tone recognition of 98.7% was obtained on average. The onset and offset precision was 8 ms and 20 ms, respectively, and sound level precision about 1 dB. For human performances, the recognition rate was 91.8 % on average. Various applications of the CUEX algorithm are discussed.
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| 8. |
- Gabrielsson, Alf, et al.
(författare)
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Emotional expression in music
- 2003
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Ingår i: Handbook of affective sciences. - : Oxford University Press, New York. - 0195126017 ; , s. 503-534
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Bokkapitel (refereegranskat)
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| 9. |
- Gabrielsson, Alf, et al.
(författare)
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Emotional expression in music performance: Between the performer's intention and the listener's experience
- 1996
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Ingår i: PSYCHOLOGY OF MUSIC. - 0305-7356. ; 24, s. 68-91
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Tidskriftsartikel (refereegranskat)abstract
- Nine professional musicians were instructed to perform short melodies using various instruments - the violin, electric guitar, flute, and singing voice - so as to communicate specific emotional characters to listeners. The performances were first validated by having listeners rating the emotional expression and then analysed with regard to their physical characteristics, e.g. tempo, dynamics, timing, and spectrum. The main findings were that (a) the performer's expressive intention had a marked effect on all analysed variables, (b) the performers showed many similarities as well as differences in emotion encoding, (c) listeners were generally successful in decoding the intended expression, and (d) some emotional characters seemed easier to communicate than others. The reported results imply that we are unlikely to find performance rules independent of instrument, musical style, performer, or listener.
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| 10. |
- Gabrielsson, Alf, et al.
(författare)
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Expressive intention governs music performance
- 1994
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Ingår i: Proceedings of the Third International Conference for Music Perception and Cognition. - 2930104007 ; , s. 19-20
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Konferensbidrag (refereegranskat)
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